LS-25-D and LS-25 - Version 2 Hardware User`s Manual
Contents
1. LS 25 D and LS 25 Version 2 Hardware User s Manual Multi band RF Downconverter and AM FM Receiver U025V203 12 18 2007 Lumistar Inc 2701 Loker Ave West Suite 230 Carlsbad California 92010 760 431 2181 www lumi star com This document is the intellectual property of Lumistar Inc The document contains proprietary and confidential information Reproduction disclosure or distribution of this document is prohibited without the explicit written consent of Lumistar Inc This document is provided as is with no warranties of any kind Lumistar Inc disclaims and excludes all other warranties and product liability expressed or implied including but not limited to any implied warranties of merchantability or fitness for a particular purpose or use liability for negligence in manufacture or shipment of product liability for injury to persons or property or for any incidental consequential punitive or exemplary damages In no event will Lumistar Inc be liable for any lost revenue or profits or other indirect incidental and consequential damages even if Lumistar Inc has been advised of such possibilities as a result of this document or the usage of items described within The entire liability of Lumistar Inc shall be limited to the amount paid for this document and its contents RESTRICTED RIGHTS LEGEND Use duplication or disclosure by the Government is subject to restrictions set forth in subparagraph c 1 i2. 94 INTIERCONNEGTION da 17 4 OPERATION OF THE LS 25 D AND LS 25 WITH THE LDPS SOFTWARE 21 4 1 CONFIGURING THE LS 25 D LS 25 HARDWARE ee ee ee ee ee HI mener rennen nnns 22 4 1 1 TUNE uien T 23 4 1 2 Aci CU AA A A A ae 24 4 1 3 Video Filter BN ed 25 4 1 4 Dermodulatotr CONO o ELM DE i 25 4 5 Output Gan Controls RES SR dis 26 4 1 6 ANC A RED tM ER cpu EE ER DE ULM Ee ET 27 4 1 7 AA EE EE ER Ee N ee ee GE Ee 28 4 18 Deviation Display Modes iii ee AR EE ee AE Ee AR ee ee ee EE ee ee ee ee ee 29 5 PROGRAMMING 52 EE EERS m doute tiet esate aan Ee Ee ER EE GR EG out GE ER GE qun 30 5 1 BUSINTEREACES tatoo lll llosa ee De Se locals 30 5 1 1 PCBS LCT AC SS escalas DE crol ER ED oe brea a teeta 30 5 1 2 SA BUS TACOS a e e ie en id 31 5 2 COMMAND AND STATUS REGISTERS cinc acia 31 5 2 1 General Communications Interaction ee ee ee ee ee ee ee ee 33 5 2 2 Hardware Identification ctas ica b OR tcs 33 5 2 3 LEDE o A ERU REED 34 524 Eontiguraton Data TRO m 36 320 ROCSNer RFE TUNING sica 38 5 2 6 EPICA Sec T E OEA EG E E OA cee uaa se OE 39 5 2 7 Video Post Detect Filter Selecti0N ccccccccoooccnnccnnnnccnonooononononononannnennnnnnnnnonans 39 5 2 8 Received Signal Strength Indication RSSI sees 40 5 2 9 FM Deviation Status LS 25 ONLY ee ee ee Ee ee ee ee ee ee EE ee ee ee ee ee ee EE 40 5 2
3. 10 FM Demodulation Input Selection LS 25 ONLY esse ee ee ee ee EE ee ee ee EE EE 41 5 2 11 FM Demodulation Data Polarity Selection LS 25 ONLY eie ee ee EE ee EE 42 5 2 12 TLM2 Output Coupling Selection LS 25 ONLY ees ee ee ee EE ee ee ee ee Ee Ee 42 5 2 13 TLM Output Gain Controls LS 25 ONLY ee ee ee EE Ee ee ee ee EE EE 43 5 2 14 AM Index Depth Status cccccooconnncccnncccccccoonccnnnnnnnononanonnnnnnnnnnnnnnnnnnnnnonnnnnnnnnnnnnnnnnnans 44 5 2 15 AM Output Low pass Filter Selection ccccccoononnnccnnncccconononcnonnnnononannnnnnononononons 44 U025V203 Lumistar Inc Page 3 12 19 07 LS 25 D LS 25 Version 2 User s Manual 9 2 16 9 2 17 9 2 18 9 2 19 9 2 20 9 2 21 U025V203 AM Frequency Counter cd 45 AM Output Gain COn TO vasito 46 AGC Time Constant Seleti Misicin a a 48 Accessory Control SelectiONn ee a a a ee ee ee ee 48 PUTO STONE OMS ds 49 Auxiliary Input SIES adds 50 Lumistar Inc Page 4 12 19 07 LS 25 D LS 25 Version 2 User s Manual List of Tables Table 1 1 Specifications for the LS 25 D LS 25 Series Multi band Receivers 9 Table 5 1 Receiver Command and Status Register Table cccccccconccnnccccooncnnnccconnnnccnononons 32 Table 5 2 Configuration PROM Contents sees esse ese ee ee ee ee Ee ee Ee ee ee ee ee ee ee ee ee ee ee Ge ee 36 Table 5 3 Auto store Parameters iese see ee ee EE ee EE a Ee ee ee ee Ee ee nnns nans 4
4. FM signal which has a gain expressed as v AHz This signal passes through the selected amplifier post detect filter combination to the receiver output The gain of the amplifier is set to a value inversely proportional to the post detect cutoff based on the presumption that less deviation will be used for signals at lower data rates The amplifier output is measured to provide the deviation output The deviation value is then scaled and displayed in Status Register 5 For the LS 25 receiver design the value that is displayed in the register is a percentage of the maximum deviation value that can be carried by the selected IF bandwidth based on the IRIG standard values The way that this is calculated is as follows Indicated FM Deviation Measured Deviation IF Bandwidth 1 2 x 0 35 x 100 Nominally the deviation readout will be 100 if the signal is modulated according to standards and if the bit rate is close to the post detect cutoff lf excess deviation is used the value returned could exceed 100 to a maximum value of 120 lf the signal strength is small the receiver noise floor starts to intrude and will cause the deviation to falsely return a larger value than the signal characteristics would imply For the LS 25 D receiver this register is non functional 5 2 10 FM Demodulation Input Selection LS 25 ONL Y The LS 25 receiver design allows the user to select the source to the dual FM discriminator stage Either the interna
5. MHz RF Band 2 Upper Band Limit MHz MHz MH RF Band 1 Upper Band Limit MHz MHz MHz Unused Unused RF Band 0 RSSI 1 Order Poly RF Band 0 RSSI 1 Order Poly RF Band 1 RSSI 1 Order Poly RF Band 1 RSSI 1 Order Poly RF Band 2 RSSI 1 Order Poly RF Band 2 RSSI 1 Order Poly Unused Unused Mx B Mx B Mx B Mx B Mx B Mx B RSSI Time Constant 0 x100usec RSSI Time Constant 1 x100usec RSSI Time Constant 2 x100usec RSSI Time Constant 3 x100usec DSP Firmware Version ID M Scale Factor x 1000 B Scale Factor x 10 M Scale Factor x 1000 B Scale Factor x 10 M Scale Factor x 1000 B Scale Factor x 10 Table 5 2 Configuration PROM Contents Registers required to access the PROM data are shown in Figure 5 4 on page 37 U025V203 Lumistar Inc Page 36 12 19 07 LS 25 D LS 25 Version 2 User s Manual Command Register 3 er f ono f ons se oo mo or mo Reserved AM Low pass Output Logic 1 A Filter Select OSOS 010 EEPROM Mode Control Command Register 4 our e ons we o 002 orn ono Status Register 6 7 enz es oes eno oto ove mer aco 4 Upper Byte of Configuration Data Figure 5 4 Configuration PROM Control and Status To access the configuration data the following steps should be performed Ensure that the BUSY bit is not set Status Register 3 bit 7 Place the receiver in PROM Read mode by setting bits 6 through 4 of Command R
6. application is also provided xi The LDPS is composed of two major application programs the Server and the Client The le Reset i Server program is used to setup and acquire Data Info data from various sources such as the LS 25 Bit Rate D LS 25 The server formats the data into a Mon MRZ Code mH normalized format archives it and then pass the data on to the client application for further processing and or display The Client is mainly a AM Index Depth e AM Freg data processing and presentation program with Strength hooks to allow new display and processing Peak Dew kHz routines to be added by the user The server and client applications can run together on the same computing platform or on different platforms interconnected via a Local Area Network LAN This users manual will focus primarily on the server side application Figure 4 1 LDPS Setup Display for the LS 25 D LS 25 To initially configure the LS 25 D LS 25 perform the following steps 1 Run the LDPS server program and from the System menu shown below select Devices and then Manage System Devices Manage 2 From the System Manager shown in Figure 4 2 below left select the Enable check box next to the LS25V2 button The Ls25V2 8x button will then become active not grayed out Note the red rectangle around the button this indicates that the application has not yet started Note also the Sim check box next to the Enable check
7. consult your operating system documentation to determine PCI access methods In addition for environments that utilize processing platforms other than X86 type processors Big Little Endian data format issues may also be present To locate a receiver in a typical operating system environment the following steps are required 1 Initialize an index value to zero This index is allowed to be as large as 255 by the PCI specification 2 To locate the boards PCI9080 interface set the machine registers as follows AX OxB102 CX 0x9080 DX 0x10B5 SI index 3 Issue a software interrupt 0x1A If the system returns from the interrupt with the carry flag set any such devices are already located and no more exist Exit the scanning routine If the carry flag is clear the BIOS call will have returned a handle in the BX register U025V203 Lumistar Inc Page 30 12 19 07 LS 25 D LS 25 Version 2 User s Manual 4 If the carry flag was clear read the sub identifier Set the registers as follows AX 0xB10A BX handle SI 0x2C 5 Issue another software interrupt 0x1A The interrupt returns a value in the ECX register If the value returned is Ox1B16B00B the handle points to a receiver and other configuration registers may be accessed Otherwise skip to step 7 Set registers as follows AX OxB10A BX handle SI 0x1C 6 Issue another software interrupt 0x1A Logically AND the value returned in t
8. 00 FM deviation for each filter selection However in cases where 100 of the standard deviation is not present the user may elect to change the PCM output level The application software is provided a 14 bit control value to adjust the PCM output level A value of zero written to the control registers sets the output level to approximately 500mVp p Maximum values adjust the output level to the maximum amount for a given deviation level Figure 5 11 below contains the register contents required for altering the PCM output levels Command Register 3 er f ono f ons se oo mo or oo yerational Mode Cont Band Select Reserved RE RE AM Low pass Output RF Band Logic 17 TO EM ec ETE EE E Filter Select ARAS Ss 101 TLM Output Gain Mode Command Register 5 6 er ee ons me mo mo or f seo Output Gain Control Value 8 LSBs Output Gain Control Value 6 MSBs Figure 5 11 TLM Output Gain Controls PCM output gain control adjustments should follow the process below Ensure that the BUSY bit is not set Status Register 3 bit 7 Write the lower 8 bits of the desired output control level to Command Register 5 Write the upper 6 bits of the desired output control level to bits 5 through O of Command Register 6 Bits 6 and 7 of Command Register 6 are unused Place the receiver in PCM Output Gain Control mode by setting bits 6 through 4 of Command Register 3 as follows 101 5 Once the BUSY bit goes low the t
9. 25Y2 Card 1 L5 75 2 Card 1 x Tuner Frequency MHz File Reset IF Bandwidth MHz Video Filter Bandwidth MHz Data Info Bit Rate 1 000000 Mon MRZ Code E Demod Controls Output Gain Controls AM Controls RSSI f AGC Controls AGC Time Constant msecs Strenath Delta Rssi Mode ERIT i ae pe tebe Mage Set Delta RSSI Point 0 dBm AE Frequency IF Eh y Video Filter EE i ACSC Time Figure 4 12 RSSI AGC Controls amp Resulting Display The Delta RSSI Mode and Set Delta RSSI Point sub modes are used in concert with each other The Set Delta RSSI Point sub mode initiates the acquisition of the instantaneous RF input power dB or signal strength level at the input to connector J2 This snapshot captures and establishes an absolute input power reference level that is subsequently compared continuously with the instantaneous RF input power level The difference or delta between the reference and instantaneous levels is displayed in two ways as shown in Figure 4 12 above right The numerical value of the delta is shown as indicated by the red oval The reference level is represented by a vertical red line shown in the white oval portion of the signal strength bar graph For more information on the Received Signal Strength Indication RSSI see paragraph 5 2 8 on page 40 U025V203 Lumistar Inc Page 28 12 19 07 LS 25 D LS 25 Version 2 User s Manual 4 1 8 Deviation Display Modes The LS 25V2 Deviation Displa
10. 9 List of Figures Figure 1 1 LS 25 D LS 25 Model Number Construction Details ees ee RR EE ee 8 Figure 1 2 Block Diagram of the LS 25 D LS 25 Series Multi band Receivers 10 Figure 3 1 LS 25 LS 25 D PCI Outline Drawing ees ee ee Ee ee ee ee EE Ee ee ee ee EE Ee ee ee ee ee 14 Figure 3 2 LS 25 LS 25 D ISA Outline Drawing esse ESE EE RE RR Re RO EE EE EE RR onere 15 Figure 3 3 Receiver Configuration Switches see ee ee EE Ee ee ee ee nnne 16 Figure 3 4 J2 J5 Pin out and Interface GonnecllONS iii ee ee RR RE ee ee ee ee 18 Figure 3 5 J3 Pin out and Interface GonnectiOnS iese Ee ee ee Ee ee ee RE Ee Ee ee ee ee ee 19 Figure 3 6 LS 25 LS 25 D Pigtail connector EE EE RE EE EER ER EER EE Rek EE EE RARR EE Ee Rek nnne 20 Figure 4 1 LDPS Setup Display for the LS 25 D LS 25 ese ee ee ee ee ee ee Ee ee ee ee 21 Figure 4 2 LDPS Server Application WiNdOWS ee ee ee Ee ee RE EE ee ee ee RR EE ee ee ee ee 22 Figure 4 3 LDPS Configuration Menus Controls for the LS 25 D LS 29 ees ee ee 22 Figure 4 4 The LS 25 D LS 25 Configuration Menu ee ee ee ee Ee ee ee EE Ee ee ee ee ee 23 Figure 4 5 Tuning Frequency Display iese se ee EE ee EE Ee ee EE Ee Re GE ER Re nennen nnne EE Re ee EE nnn nnn nnns 24 Figure 4 6 2 IF Bandwidth MHz tenerent ee ee 24 Figure 4 7 Video Filter Bandwidth MHZ esse sesse ee ee ee ee EE Ee ee Ee ee EE ee EE Ee ee ee ee ee EE ee ee ee ee ee Ee 25
11. Discrete and Coax Connections J5 Environmental Temperature Operational 0 to70 C Commercial Temperature Storage 20 to70 C _ Humidity non condensing 40 C 0 90 gt 40 C 0 75 Table 1 1 Specifications for the LS 25 D LS 25 Series Multi band Receivers U025V203 Lumistar Inc Page 9 12 19 07 LS 25 D LS 25 Version 2 User s Manual i Receiver Controls and Baseband Processing y A ny FPGA SN AA b e wo dy B x Y NT a gt 2 FLO LAN J y Y RAL Optional 3 RF Filter with Single Stage Conversion Figure 1 2 Block Diagram of the LS 25 D LS 25 Series Multi band Receivers U025V203 Lumistar Inc Page 10 12 19 07 LS 25 D LS 25 Version 2 User s Manual 2 Theory of Operation In order to more clearly understand the operation of the receivers this section will detail the various sections of the receiver The designs include nine primary stages 1 Downconversion 1 IF Band pass Filter 1 Local Oscillator 2 Downconversion 2 Local Oscillator 2 IF Filter Logarithmic Amplifier AM Demodulation FM Demodulation Post Detect Video Filter Each of these sections are physically shielded and isolated from one another to facilitate the greatest EMI RFI ingress and egress protection allowing the receiver exceptional performance For the following sections refer to the block diagram of Figure 1 2 on page 10 2 1 1 Downconversion The
12. Figure 4 8 Demodulation Controls x teclas 25 Figure 4 9 Demodulation Controls amp Resulting Displays cccccccconccnncnoconnonncnonanonnnonaanonnnoos 26 Figure 4 10 Output Gain Controls Resulting Display cccccooooncccnnnccccccooncncnnnnncnnannncnnnnnnnos 27 Figure Wt Wei SS oi dietas 27 Figure 4 12 RSSI AGC Controls amp Resulting Display ccccccccocccnnccnonnccconnoonncnnnnnononanccnnnnnnnos 28 Figure 4 13 Deviation Display Modes cccccccconccncccccocconccccnncnnnononancnnononancnnnnnnnncnnnnnnnnnrnnnnnnnnncnnnns 29 Figure 4 14 Additional Deviation DiSplayS coooonconccccconnonnonononcnnnononanoncnnnonncnnnnnonancnnnnnnnanennnnss 29 Figure 5 1 Receiver BUSY Flag IndicatiON ccccccccocconnncnnnncccconnonccononononnonncnnnnnnnonnnanccnnononnss 33 Fidure 5 2 Board IdentlICa MOM a ce deste ve ee eset 33 Figure 3 9 LED GONTTO land Stallone 34 Figure 5 4 Configuration PROM Control and Status ooccccccccccccooonncnnnnccnnnonancnnnnnnnnnnannnnnnnonoss 37 Figure 5 5 RECEIVER TUNNO urraca 38 Figure 5 6 IE Filler Sele cl tia ciendo 39 Figure 5 7 Video Post Detect Filter Selection oooccccnnccccococoncconnncconnnnncnnnononononanccnnnnnnnos 40 Figure 5 8 FM Demodulation Input Selecti0N cccccccooccnncccnnncccconoonccnnnnconnnnnncnnnnnonononanenonononoss 41 Figure 5 9 FM Demodulator Data Polarity SelectiON oocccccccccnononnncnnnnccnnononnccnnnncn
13. Logarithmic Amplifier acts as the main system gain element providing from 70 to 100dB of signal gain In addition this stage provides received signal strength detection and AM demodulation 2 7 FM Demodulation LS 25 Receiver Versions ONLY The LS 25 versions of the receiver contain a dual FM discriminator design Two discriminators are utilized to optimize the resulting baseband production based on signal deviation levels A narrow deviation signal discriminator is utilized for signals that have peak deviations of less than 1MHz A separate discrimination stage is utilized for signals with peak deviations greater than 1MHz Following each discrimination stage a low pass filter is utilized to minimize baseband noise and IF frequency bleed through Selection of the discriminator stages is performed automatically based on the user programming selections 2 8 Post Detection Video Filter LS 25 Receiver Versions ONLY The LS 25 versions of the receiver contains twelve video filters to further filter the baseband PCM signal reducing the noise bandwidth of the output signal Default video filters are roughly half the bandwidth of the IF filters but can be varied for specific applications Consult the factory for custom video filter bandwidths U025V203 Lumistar Inc Page 12 12 19 07 LS 25 D LS 25 Version 2 User s Manual 3 Installation and Configuration Chapter 3 provides installation and configuration information This chapter will locate s
14. M Output Filter Select RF Band Select CMD4 Mode Register 1 UDR1 CMD5 Mode Register 2 MDR2 CMD6 Mode Register 3 MDR3 Digipot CMD7 Command Unused Digipot Mode Select Enable Status Registers E O EE OEA LA Reserved Logic 0 RSSI RSSI Board LED Board LED Board LED Board LED EOM Status Bit 1 Status Bit 0 Unused ID3 ID2 ID1 IDO Status Status Status Status STAT2 AM Index Depth Status Receiver Auto Store Diversit Ad AS STAT3 Operational Mode Status y Counter Counter BUSY Flag Status Lock Status Update Overflow STAT4 Received Signal Strength Indication RSSI Status Bits 9 2 STAT5 FM Deviation Status STAT6 Status Register 1 STAT1 STAT7 Status Register 2 STAT2 Table 5 1 Receiver Command and Status Register Table STATO Board Identification Register U025V203 Lumistar Inc Page 32 12 19 07 LS 25 D LS 25 Version 2 User s Manual 5 2 1 General Communications Interaction Communications with the receiver is via a command response format Commands sent from the host processor will cause a BUSY flag to be set in bit 7 of Status Register 3 Once a command has been issued application software should wait until the BUSY flag resumes a low state prior to issuing further commands or reading the requested status data Figure 5 1 below illustrates the BUSY flag Status Register 3 A ISTE IE IT Auto Auxillary AM Freq AM Freq Operational Made Status store Input Counter Counter Status Status Update
15. Overflow 0 Receiver Not BUSY Ready 1 Receiver BUSY Not ready Figure 5 1 Receiver BUSY Flag Indication 5 2 2 Hardware Identification The receiver contains a hardware identification register to allow software the ability to query the hardware to provide confidence that a receiver is physically present at the alleged address This register is shown in Figure 5 2 below Status Register 0 Reserved Board Identification Reaister Logic so Do rd de mccain Register Figure 5 2 Board Identification Successive reads from the Status Register O will return a string of ASCII characters in the lower 7 bit positions of the register as follows Receiver Type Hex Return String ASCII Return String LS 25 0x4C 0x53 0x32 0x35 0x56 0x32 0x00 L S 2 5 V 2 NULL LS 25 D 0x4C 0x53 0x32 0x31 0x56 0x32 0x00 qo eo D p NM 2 NULL U025V203 Lumistar Inc Page 33 12 19 07 LS 25 D LS 25 Version 2 User s Manual This receiver presents these identification strings in a circular fashion terminating in a NULL character 0x00 Once the NULL character is received subsequent reads from this register will recycle through the character string 5 2 3 LED Control The rear of the PCI and ISA receiver designs contains a bank of four Board ID LEDs At initial application of power the DSP maintains control of these indicators The DSP utilizes the LEDs to indicate power up test and configur
16. P b AnalogrOU BNC Female AM Out 0 7 5Vp p AnalogiOu P y A i i order Cup BNCFe nput or Ovtpi L5 Cap ENG Female Auxiiary AN Og Sewercup BNCFemale RSSTOW U XVp p Analogi0n T1 socer gt led 7 En IF Identification Labels 12 SMA Male Pigtail C leen L1 12 SMA Male Pigtal 7OMHz Out2 13443 Hybrid D Style Male Flug m wi Thumb Screws 12 BNC Female Pigtail o E Auxllary AM 12 BNC Female Pigtail o B AM Out 12 BNC Female Pigtail o RSSI Out 12 BNC Female Pigtail o E Auxillary TTL 70MHz Out3 127 SMA Male Pigtail LAE D connector D connector Pigtail Signal Level SMA Wale 70042048 TOMHziOUupu MA Male IMAZ Out2 OMHz Output CS tom male SMANale UMA Out OMA Output 1 A LL S BNC Female AMON 075Vpp AnalogiOut 4 _ Solver Cup BNC Female Auxiliary Jn or Out 5 SeMe Cup BNCFemale Auxillary AM TTL or Analog AMOU 6 sone Cup ENC Female RSS Our 0 4Vp p Analog Out Figure 3 6 LS 25 LS 25 D Pigtail connectors U025V203 Lumistar Inc Page 20 12 19 07 LS 25 D LS 25 Version 2 User s Manual 4 Operation of the LS 25 D and LS 25 With The LDPS Software The version 2 Lumistar LS 25 D Multi band RF Downconverter and the LS 25 Multi band FM Receiver can be setup and controlled by using the Lumistar Data Processing System LDPS software shown below A stand alone
17. RF input is applied to the 1 Downconversion stage This stage contains a low noise amplifier LNA to provide a large amount of gain enhancing the receiver s overall sensitivity Selectable RF band pass filters follow the LNA The RF signal is then mixed with the first local oscillator LO which coverts it to a lower frequency referred to as the 1 IF frequency Finally the signal is applied to a 45MHz band pass filter to limit the overall noise bandwidth applied to the remaining receiver sections 2 2 1 Local Oscillator In a superhetrodyne design local oscillators LOs are utilized to convert high frequencies to lower intermediate frequencies The first LO is injected into the mixer of the first Downconversion stage to accomplish this task Mixers can either utilize a sum or difference frequency component to produce IF frequencies For example if an RF frequency of 2 200 MHz was to be converted to an intermediate frequency of 250MHz a difference component of 1 950MHz could injected to the mixer or a sum frequency component of 2 450MHz could be applied The difference component LO application is referred to a low side conversion The sum component application is referred to as high side conversion Both methods are equally valid and each has its own benefits The LS 25 D and LS 25 designs utilize low side conversion to prevent spectral inversions 23 2 Downconversion st The receiver designs contain a switchable 2 D
18. V Video Filter E L5 25V2 Card 1 AGC Time Tuner Frequency MHz IF Bandwidth MHz Video Filter Bandwidth MHz Demod Controls Output Gain Controls AM Controls RSSI AGC Controls Deviation Display Mode Figure 4 3 LDPS Configuration Menus Controls for the LS 25 D LS 25 U025V203 Lumistar Inc Page 22 12 19 07 LS 25 D LS 25 Version 2 User s Manual The LS 25V2 Card 1 display shown center in Figure 4 3 above is divided into several regions The number of and function of each region is dependent on the various modes the cards can be configured for To invoke the controls for the display simply place the mouse curser in the center region and right click The resulting menus are shown in Figure 4 4 below are discussed in detail in the following paragraphs L5 25V2 Card 1 Tuner Frequency MHz IF Bandwidth MHz Video Filter Bandwidth MHz Demod Controls Output Gain Controls AM Controls RSSI AGC Controls Deviation Display Mode d Figure 4 4 The LS 25 D LS 25 Configuration Menu 4 1 1 Tuner Frequency The Version 2 Lumistar LS 25 D Multi band RF Downconverter and the LS 25 Multi band FM Receiver concurrently support AM amp FM demodulation in three the following five possible frequency bands Note that up to three 3 of these bands may be specified at the time of order 2185 5 2485 5 MHz NATO E Band To select a receive frequency click on the Tuner Frequency MHz menu item E
19. ails The selection of this sub mode is indicated in the display as shown in Figure 4 9 below left red oval L5 25v2 Card 1 X L5 25v2 Card 1 File Reset File Reset Data Info Data Info Bit Rate SEE 1000000 Maon NFE z Code E Mon MRZ Code E Strength Peak Dey kHz Peak Dey kHz Frequency Frequency IF Etsy IF Ev Video Filter Eh Video Filter Eh AGL Time External Demod Source Data Polarity Inverted Figure 4 9 Demodulation Controls amp Resulting Displays The AC Couple TLM2 sub mode allows the user to select the AC coupling configuration for the TLM2 output If this sub mode is not selected no check mark in the menu then the coupling mode for the TLM2 output will default to DC coupling See paragraph 5 2 12 on page 42 for more details The Data Polarity Inverted sub mode allows the user to invert the logic polarity of the PCM data output See paragraph 5 2 11 on page 42 for more details The selection of this sub mode is indicated in the display as shown in Figure 4 9 above right yellow oval 4 1 5 Output Gain Controls The LS 25V2 Output Gain Control has two sub modes Auto and Manual as shown in Figure 4 10 below left When the Manual sub mode is selected two additional slider controls will appear on the display as shown below right red oval The AM Output Level slider control allows the user to manually alter the output voltage level of the AM output on the LS 25V2 See para
20. ategory Specifications Details Mechanical 12 35 L x 4 01 W x 0 62 H PCI 13 37 L x 3 90 W x 0 62 H ISA Full length PCI or Full length ISA gt 2407 Individual power requirements 5VDC 9 325m A LLL L 2VDCQ 530m N 2VDCQ215mA oo TetalPowr 106Wats Performance RF Tuner 2185 5 2485 5 MHz NATO E Band 2200 5 2399 5 MHz S Band 1710 5 1849 5 MHz Upper L Band 1435 5 1539 5 MHz Lower L Band SSS A o 215 5 319 5 MHz P Band AAA Tuner Resolution Custom Consult Factory Tuner Resolution 50kHz 0 002 Max 0 001 Typical 20dBm to 90dBm 18dBm 10dBm typical 5dB typical 8dB maximum 7OMHz Phase Noise 100kHz Less than 102dBc 110dBc typical Receiver OIP3 gt 15dBm typical 7OMHz Output Level 20dBm 1dBm 2 IF 3dB Bandwidths Available 500kHz 1MHz 1 5MHz 2 5MHz 3 5MHz 4MHz 6MHz 8MHz 10MHz 12MHz 16MHz 20MHz Others Available 2MHz 3MHz 4 5MHz 5MHz 7MHz 9MHz 14MHz 18MHz 22MHz 24MHz 26MHz 28MHz 30MHz 36MHz Consult factory Demodulation 250kHz 500kHz 750kHz 1 25MHz 1 75MHz 2MHz 3MHz 4MHz 5MHz 6MHz 8MHz 10MHz Custom Consult Factory Connectors 20MHz Reference Input Output SMB Male J1 RFSigalipt SMAFemale Ja i Accessory VO Connector Molex14 pinComnector Y3 Hybrid D Style Connector Mixed
21. ation memory load status During this phase of operation two LED cycles occur The first cycle flashes the four LEDs in groups of two indicating that the DSP processor has passed its initial built in test cycle The second cycle illuminates each of the LEDs in a binary sequence indicating successful loads of configuration memory pages The internal control of these LEDs is complete in less than 3 seconds After the final configuration page has been loaded all LEDs are extinguished and control is returned to bits 0 through 3 of Command Register 1 Status of these LEDs can be read by the application software via bits O through 3 of Status Register 1 Figure 5 3 illustrates registers used to command and status the boards LEDs Command Register 1 Unused sae Pa O LED Off 1 LED On O LED Off 1 LED On 0 LED Off 1 LED On 0 LED Off 1 LED On Status Register 1 B Board Board LEDID3 LED ID2 T 5 s S Bo TA Unused LED ID3 LED ID LEL M 0 LED Off 1 LED On 0 LED Off 1 LED On 0 LED Off 1 LED On 0 LED Off 1 LED On Figure 5 3 LED Control and Status U025V203 Lumistar Inc Page 34 12 19 07 LS 25 D LS 25 Version 2 User s Manual Information LED indications during power up phases provide a source of general receiver health and operational status One application for these LEDs is as a means for the device driver or software application to provide receiver identification when multiple i
22. box Checking this box allows the LDPS application to operate when a LS 25 board is not installed in the system 3 From the System Manager click the Ls25V2 8x button This will launch the Ls25V2 8x Receiver display shown in Figure 4 2 below right Note that the red rectangle around the button has changed to green indicating that the application is now running 4 To setup and configure the LS 25 D and LS 25 cards follow the procedures outlined in paragraphs 4 1 Located in the LDPS directory the standalone application LS25V2_8x performs the same functions as described in this section U025V203 Lumistar Inc Page 21 12 19 07 LS 25 D LS 25 Version 2 User s Manual ki LOPS Server Yer 8 164 Pro IDLE System Edit Project View Start Client Tools About System Time Project State Mode Time Project Mame Device Manager x Ls25 2_8x Yer 1 07 Receiver SIMULATION Lest Bx El lnpeextustomsertal El A1553BusManttar Bx El System Setup MEA lt A J Lavas F Le23V2_6x Gi L7 Bx El LopstxCustomhlon serial El Figure 4 2 LDPS Server Application Windows 4 1 Configuring the LS 25 D LS 25 Hardware From the Ls25V2 8x Receiver display shown below upper left in Figure 4 3 click Setup and then Stream 1 Setup Stream 1 Ls25Y2_8x Ver 1 07 Receiver SIMULATION System Setup File Reset Data Info s 1000000 Non NRZ Code Strength Peak Dey kHz Frequency IF BY
23. d in value Conversely to reduce the AM output voltage increment the Digipot value Figure 5 14 on page 47 contains the command registers associated with the AM Output Gain controls U025V203 Lumistar Inc Page 46 12 19 07 LS 25 D LS 25 Version 2 User s Manual To individually step the AM Gain Digipot follow this procedure 1 Ensure that the BUSY bit is not set Status Register 3 bit 7 2 Write a 0x02 to Command Register 6 3 Set Command Register 7 bits 1 and 0 to the achieve the desired step direction 4 Set Command Register 7 bit 7 to 1 5 When the BUSY flag goes low the Digipot action is complete To program the AM Gain Digipot for a specified value follow this procedure Ensure that the BUSY bit is not set Status Register 3 bit 7 Write the desired value 0 to 99 to Command Register 5 Write a 0x02 to Command Register 6 Set Command Register 7 bits 1 and 0 to 10 Set Command Register 7 bit 7 to 1 When the BUSY flag goes low the Digipot action is complete S ut E Caution Completion times for individually stepped Digipot commands may be as long as 200 usecs Full scale digipot commands may take as long as 40 msecs These commands should be issued sparingly Command Registers 5 6 CIA IA 4 Digipot Programmed Value Digipot Selection Command inicie T ESE RE NE NE NES ONE ommanc Unused Hi q 01 Increment Digipot Setting 10 Pro d Dig
24. e damage to the interface hardware Ensure that power is removed from the system prior to hardware installation 2 Install the receiver in an unobstructed full length PC slot ensuring that the receiver is properly seated in the interface bus socket PCs vary in their mechanical configurations so it may be necessary to remove additional PC hardware to properly install the receiver For PCI installations it may be necessary to remove the blue ISA extension bracket at the rear of the PCI card depending on the mechanical configuration of your particular platform U025V203 Lumistar Inc Page 16 12 19 07 LS 25 D LS 25 Version 2 User s Manual 3 Install a screw in the mounting panel to secure the unit If the unit is installed in a portable or rack mount PC it may also be necessary to secure the rear of the board to the chassis of the PC via standard self locking cable ties Some platforms also have a vertical hold down which can be adjusted to provide additional mechanical stability 3 4 Interconnection The receiver platforms provide four interface connectors For the typical application only the J2 and J5 connectors are required For use in a diversity combiner circuit or for use with a high stability external reference source J1 is provided The J3 connector provides special auxiliary interfaces and is typically unused Receivers are shipped without the J3 connector installed unless requested by the customer Figure 3 4 on page 18 pro
25. e paragraph 5 2 14 on page 44 for more details The AM Freg is the instantaneous frequency value of the AM demodulated signal Hz See paragraph 5 2 16 on page 45 for more details L5 25V2 Card 1 LS 25 2 Card 1 Tuner Frequency MHz File Reset IF Bandwidth MHz Data Info Video Filter Bandwidth MHz Bit Rate 1000000 EE s Mon HRZ Code El Output Gain Controls AM Controls AM Low Pass Filter Hz Strength view AM Data Peak Dev kHz RSSI AGC Controls EE TTA EE Frequency Deviation Display Mode IF En Video Filter Ei AGC Time Figure 4 11 AM Controls U025V203 Lumistar Inc Page 27 12 19 07 LS 25 D LS 25 Version 2 User s Manual The AM Low Pass Filter Hz sub mode allows the user to select one of four low pass filters on the AM output including 50 500 5000 or 50 000 Hz Note the 50 KHz selection is the same as low pass filter bypass See paragraph 5 2 15 on page 44 for more details 4 1 7 RSSI AGC Controls The LS 25V2 RSSI AGC Control has three sub modes AGC Time Constant Delta RSSI Mode and Set Delta RSSI Point as shown in Figure 4 12 below left The AGC Time Constant sub mode allows the user to select one of four possible AGC time constants including 33 100 330 and 1000 ms The selected time constant is displayed as shown in Figure 4 12 below right yellow oval For more information on Automatic Gain Control AGC time constants see paragraph 5 2 18 on page 48 LS
26. e shown the unit is factory configured with Video Filter bandwidths of 0 25 1 25 2 50 and 5 MHz The actual Video Filter bandwidths the individual user will see when setting the Video Filter bandwidth are likely to be different than those show here Once selected the Video Filter bandwidth will be displayed as shown in the figure below right red oval L5 25V2 Card 1 EA 3 File Reset Tuner Frequency MHz Data Info IF Bandwidth MHz Bit Rate Video Filter Bandwidth MHz pue E Demod Controls Strength Output Gain Controls Peak Dev kHz Frequency AM Controls EE ideo Filter El RSSI AGC Controls AGC Time Deviation Display Mode Figure 4 7 Video Filter Bandwidth MHz 4 1 4 Demodulation Control The LS 25V2 Demodulation Control has three sub modes External Demod Source AC Couple TLM2 and Data Polarity Inverted as shown in Figure 4 8 below L5 25V2 Card 1 Tuner Frequency MHz IF Bandwidth MHz videa Filter Bandwidth MHz Demod Controls External Demod Source AC Couple TLM2 Data Polarity Inverted Output Gain Controls AM Controls RSSI AGC Controls Deviation Display Mode Figure 4 8 Demodulation Controls U025V203 Lumistar Inc Page 25 12 19 07 LS 25 D LS 25 Version 2 User s Manual The External Demod Source sub mode enables the LS 25 FM Discriminator and Video Filter to be driven by an external input source See paragraph 5 2 10 on page 41 for more det
27. ed by this figure The original product line is described in User Manual U250401 Consult the factory for a copy of this document The intent of this document is to provide physical functional and operational information for the end user including hardware configuration interconnection and software interfaces for the device Both receivers implement a switching dual single superhetrodyne receiver design The designs provide for the Downconversion for up to three RF bands providing two 70MHz second intermediate frequency IF outputs as well as AM demodulation of the input signal The product may be configured with up to 12 IF bandwidth filters In addition to the functions of the LS 25 D the LS 25 provides an additional FM demodulation stage and up to12 selectable video filters applied to the demodulated PCM signal Table 1 1 on page 9 provides specifications for electrical mechanical and operational characteristics of the LS 25 D and LS 25 receiver product line A block diagram of the receiver is shown in Figure 1 2 on page 10 1 2 Manual Format and Conventions This manual contains the following sections Chapter 1 provides a brief product overview and technical specifications Chapter 2 provides receiver theory of operation Chapter 3 provides installation and configuration instructions Chapter 4 provides info on the LS 25 25 D LDPS software application Chapter 5 provides programming information Throughout this document several docu
28. egister 3 as follows 010 Poll the BUSY bit until it returns low In Command Register 4 write 01aaaaaa where aaaaaa is the binary address of the desired configuration data from Table 5 2 on page 36 5 Once the BUSY bit goes low the lower byte of the requested configuration data will be available in Status Register 6 and the upper byte of data will reside in Status Register 7 A A 1 2 sd Information It is suggested that the receiver configuration data be read as part of the application software s initialization process and held internally Access to the EEPROM data is a slow hardware process U025V203 Lumistar Inc Page 37 12 19 07 LS 25 D LS 25 Version 2 User s Manual 5 2 5 Receiver RF Tuning The tuning of the receiver is a two stage process First the proper receiver RF input must be selected followed by the RF synthesizer tuning process Registers that are required for tuning are depicted in Figure 5 5 below Command Register 3 Reserved z AM Low pass Output Logic 1 M Tt o AE TS Filter Select 00 RF Band 0 PROM Address 26 27 01 RF Band 41 PROM Address 28 29 10 RF Band 2 PROM Address 30 31 11 Unused Future Growth 011 Receiver Tune Moda Command Register 4 5 6 per me ms oe mes mo em omo Fractional Tuner Frequency 4 Lower Byte of Tuner Freq Upper Byte of Tuner Freq Figure 5 5 Receiver Tuning Tuning should fo
29. eo Post Detect Filter Selection The receiver provides for the selection of one of twelve of video filter bandwidth The available bandwidths are indicated in the configuration PROM locations 12 through 23 If the PROM U025V203 Lumistar Inc Page 39 12 19 07 LS 25 D LS 25 Version 2 User s Manual location for a particular filter contains a value of 0 this indicates that the filter is not installed and should not be selected Figure 5 7 below contains the register contents required to select the video filters Command Register 2 pr me ms me mo mo eu oe Video Filter Select IF Filter Select Video Filter 0 PROM Address 12 Video Filter 1 PROM Address 13 Video Filter 2 PROM Address 14 Video Filter 3 PROM Address 15 Video Filter 4 PROM Address 16 Video Filter 5 PROM Address 17 Video Filter 6 PROM Address 18 Video Filter 7 PROM Address 19 Video Filter 8 PROM Address 20 Video Filter 9 PROM Address 21 Video Filter 10 PROM Address 22 Video Filter 11 PROM Address 23 All other combinations reserved Figure 5 7 Video Post Detect Filter Selection Selection of the Video filter should follow the process below 1 Ensure that the BUSY bit is not set Status Register 3 bit 7 2 Enter the desired Video Filter number in bits 7 through 4 of Command Register 2 For the LS 25 D receiver the video filter selection control bits are non functional 5 2 8 Received Sig
30. erial numbers and product configuration information familiarize the user with the layout of the board and provide information on the proper installation and interconnection of the hardware 3 1 Product Outline Diagrams Figure 3 1 on page 14 contains an outline diagram of the top and bottom sides of the PCI versions of the product Figure 3 2 on page 15 contains an outline diagram of the top and bottom sides of the ISA version of the product Connector locations and switch positions are indicated The model number serial number revision information and product options are denoted on the upper edge of the RF enclosure as indicated in the two figures 3 2 Hardware Configuration The receiver design contains configuration switches to control various functions and in the case of the ISA format to provide addressing of the board Figure 3 3 on page 16 contains a diagram of the configuration switches along with the default factory positions for these switches Warning Switches indicated as FACTORY USE ONLY should not be altered from the indicated positions to ensure proper receiver operation U025V203 Lumistar Inc Page 13 12 19 07 LS 25 D LS 25 Version 2 User s Manual ile Product Identification Serial No Option Information ho JTAG Port Status LEDs MA m a MT BI ul falls AE Figure 3 1 LS 25 LS 25 D PCI Outline Drawing U025V203 Lumistar Inc Page 14 12 19 07 LS 25 D LS 25 Versi
31. frequency values in the pop up list box shown in Figure 4 6 below left In the example shown the unit is factory configured with 2 IF bandwidths of 1 2 5 5 and 10 MHz The actual 2 IF bandwidths the individual user will see when setting the IF bandwidth are likely to be different than those show here Once selected the 2 IF bandwidth will be displayed as shown in the figure below right red oval L5 25V2 Card 1 LS 25 2 Card 1 Tuner Frequency MHz File Reset IF Bandwidth MHz Data Info Video Filter Bandwidth MHz Bitrate 1 DOOBOP HON HF Code El Demod Controls Output Gain Controls AM Controls Strength A ee AAA dk Peak Dey kHz RSSI AGC Controls Frequency Deviation Display Mode cem AE Time Figure 4 6 2 IF Bandwidth MHz U025V203 Lumistar Inc Page 24 12 19 07 LS 25 D LS 25 Version 2 User s Manual 4 1 3 Video Filter Bandwidth The Version 2 Lumistar LS 25 D Multi band RF Downconverter and the LS 25 Multi band FM Receiver are factory configured to support up to twelve 12 separate Video Filter bandwidths Standard bandwidths include 250kHz 500kHz 750kHz 1 25MHz 1 75MHz 2MHz 3MHz 4MHz 5MHz 6MHz 8MHz and 10MHz At the factory the selected Video Filter bandwidth values are programmed into a configuration PROM see paragraph 5 2 7 on page 39 for more details and are used by the LDPS application to populate frequency values in the pop up list box shown in Figure 4 7 below left In the exampl
32. ftware interface and setup information Depending on the form factor ordered the receivers provide command and status interfaces through either a 32 bit Peripheral Component Interface bus PCI version 2 2 or an 8 bit Industry Standard Architecture bus ISA Both interfaces use the same command formatting and command status register sets 5 1 Bus Interfaces The receiver is controlled by an array of eight registers Each register is eight bits in length Depending on the physical bus structure connecting the receiver to the system the register number will map to a machine address in various ways 5 1 1 PCI Bus Interfaces PCI components do not have fixed address assignments At system startup a power on routine scans the computer for PCI interfaces and assigns system resources to the devices found Each PCI component is assigned an array of sixty four 32 bit registers in what is referred to as configuration space This area is normally not accessible anywhere in system address space and must be accessed by special means that are system dependent The following discussion applies to systems using MS DOS or Microsoft Windows platforms where PCI configuration space is accessed by BIOS calls For the purposes of this document these environments will be referred to as typical operating system environments Other environments will have system specific ways to access PCI configuration space If you are utilizing non Microsoft operating systems
33. graph 5 2 17 on page 46 for more details The TLM Output Level slider control allows the user to manually alter the output voltage level of the TLM1 and TLM2 output signals produced by the LS 25V2 See paragraph 5 2 13 on page 43 for more details In either case no additional feedback is provided in the display as the sliders are adjusted The actual voltage levels of the AM and TLM signals will need to be measured via some form of external instrumentation volt meter oscilloscope etc as each slider is adjusted U025V203 Lumistar Inc Page 26 12 19 07 LS 25 D LS 25 Version 2 User s Manual L5 25V2 Card 1 LS 25 2 Card 1 File Reset Tuner Frequency MHz IF Bandwidth MHz videa Filter Bandwidth MHz Data Info Bit Fate 1 0000010 CA e B Demod Controls Output Gain Controls Auto Manual EE Strength mo ENS Peak Dey kHz RSSI AGT Controls Frequency e IF Ev Deviation Display Mode viden Filter EV AGC Time part Output Level of O rios cutout Control o BD Figure 4 10 Output Gain Controls Resulting Display 4 1 6 AM Controls The LS 25V2 AM Controls has two sub modes AM Low Pass Filter Hz and View AM Data as shown in Figure 4 11 below left When the View AM Data sub mode is selected two additional data displays will appear on the display as shown below right red oval The AM Index Depth is the amplitude modulation index detected in the post processing of the AM demodulation Se
34. he ECX register with OxOFFFO This yields the base VO port of the receiver Registers are in PCI VO space and map simply as Register Address Base VO Port Register Address Offset s Increment the index value and return to step 5 5 1 2 ISA Bus Interfaces For ISA Receivers the address of the Base VO Port is selected by the user via switch SW4 See Figure 3 3 on page 16 for details In ISA bus systems care should be taken to ensure that the VO range selected is free for receiver operations Once a free register range has been identified and the corresponding switch selections have been made board registers are in ISA l O space and map simply as Register Address Base l O Port Register Address Offset 5 2 Command and Status Registers Table 5 1 below contains the map for the receiver command and status registers Register address offsets are indicated in this table More detailed discussions of the function and interaction of these registers will follow in subsequent sections Discussions will follow a logical and functional flow rather than on a register by register method U025V203 Lumistar Inc Page 31 12 19 07 LS 25 D LS 25 Version 2 User s Manual Command Registers TLM2 FM Demod E Demod CMDO Output Data Input Accessory Controls Linear Out AGC Time Constant Select Coupling Polarity Source Board LED Board LED Board LED Board LED CMD2 Video Filter Select IF Filter Select CMD3 RAMS Operational Mode Controls A
35. i of the rights in Technical Data and Computer Software clause in DFARS 252 227 7013 Lumistar Inc and its logo are trademarks of Lumistar Inc All other brand names and product names contained in this document are trademarks registered trademarks or trade names of their respective holders 2006 Lumistar Inc All rights reserved Lumistar Inc 2701 Loker Avenue West Suite 230 Carlsbad CA 92010 760 431 2181 760 431 2665 Fax www lumi star com LS 25 D LS 25 Version 2 User s Manual TABLE OF CONTENTS T UNTAR TON a e EE a een 6 1 2 MANUAL FORMAT AND CONVENTIONS ee eene II ee ee ee ee ee hne re ee ee ee ee ee ee re ee ee ee 6 2 THEORY OE OPERATION urraca did 11 241 1 DOWNCONVER S ON ME EG N De ED ica 11 PA A ROC ue NR m m a A 11 23 De DOWNGONVERSION asse rentem uv eiiim Dade ais 11 Cr EL dts NOSE Ne EE E m 12 25 DI EITER soe Ee ee Ge EE ee EE AR Ee ee se ee ie Sid oe 12 2 6 LOGARITHMIC AMPLIFIER AM DEMODULATION ees ee ee ee ee ee ee ee ee ee ee ee ee ee ee re rere ee rens 12 2 7 FM DEMODULATION LS 25 RECEIVER VERSIONS ONLY ee ees see ee ee ee ee ee ee ee ee ee ee ee ee ee 12 2 8 POST DETECTION VIDEO FILTER LS 25 RECEIVER VERSIONS ONLY 12 3 INSTALLATION AND CONFIGURATION ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee 13 3 1 PRODUCT OUTONE DIAGRAMS SE ED DE IG Ge fai bie 13 Se HARBWABE CONFIGURATION tdi ode 13 83 TBYSIGAEINSTAEDATION e e e E aes 16
36. ipot Setting 0 No Action 1 Execute Digipot Command Figure 5 14 AM Output Gain Control U025V203 Lumistar Inc Page 47 12 19 07 LS 25 D LS 25 Version 2 User s Manual Information The Digipots are internally protected from accidental programming which extends beyond full scale If commanded to perform 125 incremental steps the Digipot will stop at 99 5 2 18 AGC Time Constant Selection The first two bits of Command Register 0 allow the application software to select an AGC Time Constant which is applied to the RSSI Output found on the J5 connector The time constants are related to the RSSI linearization processing that is being conducted via the DSP processor As the time constant value is increased the fundamental frequency of the DSP linearization process is decreased thus reducing AM components in the RSSI output Figure 5 15 below contains the AGC time constant selection Command Register 0 er f eu f ons we emo 002 oer oe TLM2 Output Coupling FM Demod Demod AGC Time Constant Input Accessory Controls Unused Select Polarity Source Time Constant 0 PROM Address 42 Time Constant 1 PROM Address 43 Time Constant 2 PROM Address 44 Time Constant 3 PROM Address 45 Figure 5 15 AGC Time Constant Selection Selection of the AGC Time constant should follow the process below 1 Ensure that the BUSY bit is not set Status Register 3 bit 7 2 Enter the desired logic sta
37. it is not set Status Register 3 bit 7 2 Enter the desired logic state in bit 6 of Command Register 0 For the LS 25 D this control is non functional 5 2 12 TLM2 Output Coupling Selection LS 25 ONLY The LS 25 receiver allows the application software to select the coupling of the TLM2 PCM output port Figure 5 10 below contains the register contents required for selecting the output coupling Command Register 0 pr e f ons f we eo en me no EIS FM E Demod Ef AGC Time Constant Data Input Accessory Controls Unused Select b 2 Polarity Source E 0 TLM2 Output AC Coupled 1 TLM Output DC Coupled Figure 5 10 TLM2 PCM Output Coupling Selection Selection of the TLM2 Output coupling method should follow the process below 1 Ensure that the BUSY bit is not set Status Register 3 bit 7 2 Enter the desired logic state in bit 7 of Command Register O U025V203 Lumistar Inc Page 42 12 19 07 LS 25 D LS 25 Version 2 User s Manual Information The TLM output coupling command only affects that TLM2 output This command has no affect on the TLM1 output For the LS 25 D this control is non functional 5 2 13 TLM Output Gain Controls LS 25 ONL Y The LS 25 receiver allows the application software to manually control the output voltage of the telemetry TLM1 and TLM2 signal produced by the receiver The receivers TLM outputs are factory calibrated to produce a 4Vp p video filter output based on 1
38. l 7OMHz source may be used as a discriminator input or an external input via the J5 connector may be selected Figure 5 8 below contains the selection register for the demodulator input Command a 0 Por f one omo en f ms f ono ur ono TLM2 Output a Accessory Controls Unused AGC Time Constant Couplin m pa Select peng Polarity Sc 0 Internal Source 1 External Source Figure 5 8 FM Demodulation Input Selection Selection of the FM demodulator input should follow the process below 1 Ensure that the BUSY bit is not set Status Register 3 bit 7 2 Enter the desired logic state in bit 5 of Command Register O For the LS 25 D this control is non functional U025V203 Lumistar Inc Page 41 12 19 07 LS 25 D LS 25 Version 2 User s Manual 5 2 11 FM Demodulation Data Polarity Selection LS 25 ONL Y The LS 25 receiver allows the application software to select the polarity of the PCM data output This function may be necessary for spectrally inverted RF input sources Figure 5 9 below contains the selection register for the PCM output data polarity Command Register 0 AC CO CO oes f mz CI TLM2 Pa AGC Time Constant Input Accessory Controls Unused Select Source Do oo 0 Normal Data Polarity 1 Inverted Data Polarity Output Coupling Figure 5 9 FM Demodulator Data Polarity Selection Selection of the FM output data polarity should follow the process below 1 Ensure that the BUSY b
39. l Mode Controls or es e RF Band Select Logic 1 Filler Select 00 LP Filter Bypass F es gy 5OkHz 01 LP Filter1 Highest F sya aw SKH2 10 LP Filter2 Middle F sap pw 500Hz 11 LP Filter3 Lowest F sgg gy 50Hz Status Register 6 7 er see oes ou ees m2 oer oro Status Register 6 AM LPF Cutoff Frequency 8 LSBs AM LPF Cutoff Frequency 8 MSBs Figure 5 12 AM Low pass Output Filter Command Status Selection of the AM Low pass output filter should follow the process below 1 Ensure that the BUSY bit is not set Status Register 3 bit 7 U025V203 Lumistar Inc Page 44 12 19 07 LS 25 D LS 25 Version 2 User s Manual 2 Enter the desired logic state in bits 3 and 2 of Command Register 3 3 Loop until the BUSY bit drops low At this point the cutoff frequency data will be available in Status Register 6 and Status Register 7 Information If it is desirable to have the application software display the available AM LPF cutoff frequencies it is suggested that the application command each of the AM LPF selections at initialization to acquire the filter cutoff information 5 2 16 AM Frequency Counter The receiver design provides the application software with an AM frequency counter Figure 5 13 below contains register definitions associated with this function Command Register 3 Reserved AM Low pass Output Logic 1 i Filter Select RF Band Select 100 AM Fre
40. llow the process below 1 Ensure that the BUSY bit is not set Status Register 3 bit 7 2 Select the RF band that you desire to tune To do this follow the steps below a Determine which RF Band of the radio contains the desired tuning signal by comparing the programmed value with the tuning ranges from the configuration PROM RF Band 0 band limits are contained in PROM locations 26 and 27 RF Band 1 band limits are contained in PROM locations 28 and 29 RF Band 2 band limits are contained in PROM locations 30 and 31 RF Band limits that contain O indicate that no RF filters are present for a given input selection and therefore should not be selected b Once the correct band has been determined write the corresponding band selection bits to the RF Band Select bits of Command Register 3 3 Divide the desired F by 256MHz truncate the value to an integer and write the resulting value to Command Register 6 U025V203 Lumistar Inc Page 38 12 19 07 LS 25 D LS 25 Version 2 User s Manual 4 Perform the following calculation F modulo 256MHz 1MHz Truncate the value to an integer and write the resulting value to Command Register 5 5 Perform the following calculation F modulo 1MHz 10kHz Truncate the value to an integer and write the resulting value to Command Register 4 6 Place the receiver in RF Tune mode by setting bits 6 through 4 of Command Register 3 as follows 011 Once the BUSY bit goes low the tuning
41. ment flags will be utilized to emphasis warnings or other important data These flags come in three different formats Warnings Cautions and Information Examples of these flags appear below U025V203 Lumistar Inc Page 6 12 19 07 LS 25 D LS 25 Version 2 User s Manual Warning Details of critical information which prevents loss of functionality Caution Details of operational or functional cautionary advisories Information Details of emphasised operational information Page 7 U025V203 Lumistar Inc 12 19 07 LS 25 D LS 25 Version 2 User s Manual E BA om TACIT N error Table Below See Tale oto 9 RF Bard Ita RF Band Installed ISA Form Factor Se Tate Bolom 2 RE Sana Ima Table Below Se Tate Bolom 2 RE Sana Ima RF Band Installed D Downconverter only se Tato Boom 1 RF Banded Table Below se Tato Boom 1 RF Banded RF Band Installed 4IF24 1 Filters de 12 IF amp 12 1 Filters Installed RF Band Table Blank Band Not Installed P P Band 215 320MHz V 420 480 MHz L Lower L Band 1435 1540MHz U Upper L Band 1710 1850MHz S S Band 2200 2400MHZ E NATO E Band 2185 2485MHz K Custom RF Band consult factory Figure 1 1 LS 25 D LS 25 Model Number Construction Details Note in the ISA configuration only 4 IF filters and one band are available U025V203 Lumistar Inc Page 8 12 19 07 LS 25 D LS 25 Version 2 User s Manual C
42. n 2 User s Manual Caution When utilizing the supplied pigtail ensure that the three hybrid coax contacts are properly aligned with the J5 mating connector to prevent contact damage Function Accessory Interfaces See Table Below Panel Connector 53780 1400 Molex Mating Connector 51146 1400 Molex Pin UN Jn x virus Signal Name Fi dint ance l vel Pt vos pomersare 96 DCI SET ea OO C e LI TEEN MECO In s msowa awe m 9 fom EI 9 On rsss aaroo rea o rovocroversonce e Ala o Contact N Figure 3 5 Ja Pin out and Interface Connections U025V203 Lumistar Inc Page 19 12 19 07 LS 25 D LS 25 Version 2 User s Manual Identification Label l 12 SMA Male Pigtail TAL TOMHz Our _ 3 12 SMA Male Pigtail AT a TOMHZz Out2 i en ie wi Thumb Screws 12 BNC Female Pigtail Auxiliary AM 12 BNC Female Pigtail AM Out 127 BNC Female Pigtail RSS Out Auxiliary TTL TLM Outi 12 BNC Female Pigtail 12 BNC Female Pigtail TEM Quiz 12 BNC Female Pigtail 12 SMA Male Pigtat O TOMH2 In Deconnector D connector Pigtail Type Pigtail Signal Level Pin Contact No Pin Cantact Type Lahel Direction Com mae SMAWae OWEN TUMFipu oax male SMA Male TOMAZ Our TONZIO oa male SMA Male TOMAZ Ou TOMAZO derCup BNC Female TEM OUZ U 75Vp n Analagror sider Cup BNC Female TLM Out U T5V
43. nal Strength Indication RSSI Status Register 4 provides an 8 bit indication of the RF signal strength being applied at the RF Input J2 As signal strength increases the value of this register increases To obtain the signal strength in dB the value from the register must be applied to a first order polynomial equation whose factors are contained in the configuration PROM To calculate the RSSI value in dBm perform the following steps 1 Read the value RSSI RAW from Status Register 4 2 Obtain the M and B values from the configuration PROM values based on which HF Band has been selected 3 Scale the results per the following equation Scaled RF Input Level dBm 0 001 x M x RSSI RAW 0 1 x B 5 2 9 FM Deviation Status LS 25 ONLY The LS 25 version of the receiver provides the application software with a deviation reading from the output of the FM discriminator stage With FM modulation deviation corresponds to U025V203 Lumistar Inc Page 40 12 19 07 LS 25 D LS 25 Version 2 User s Manual modulation However a definition of 100 modulation is much more arbitrary and is defined case by case as the point where the transmitter frequency diifers from its nominal center frequency by some specified offset For telemetry transmission the IRIG 106 standard suggests that peak deviation be set to 35 of the signal bit rate for NRZ signals and 70 for Bi Phase signals In the receiver a discriminator detects the
44. nitiate any control software thus saving on start up time This function is initiated via switch SW1 2 See Figure 3 3 on page 16 The parameters that are stored by this function are displayed in Table 5 3 below Auto store Contents AGC Time Constant Selection FM Demodulator Input Selection FM Demodulator Data Polarity Selection TM2 Output Coupling Selection IF Filter Bandwidth Selection Video Filter Bandwidth Selection RF Band Selection Tuner Frequency AM Output Gain Level TLM Gain Adjustment for Video Filter O TLM Gain Adjustment for Video Filter 1 TLM Gain Adjustment for Video Filter 2 TLM Gain Adjustment for Video Filter 3 TLM Gain Adjustment for Video Filter 4 TLM Gain Adjustment for Video Filter 5 TLM Gain Adjustment for Video Filter 6 TLM Gain Adjustment for Video Filter 7 TLM Gain Adjustment for Video Filter 8 TLM Gain Adjustment for Video Filter 9 TLM Gain Adjustment for Video Filter 10 TLM Gain Adjustment for Video Filter 11 AM LP Filter Selection Table 5 3 Auto store Parameters U025V203 Lumistar Inc Page 49 12 19 07 LS 25 D LS 25 Version 2 User s Manual Some customers may have security concerns about data being stored by the receiver To address this issue a flag in Status Register 3 indicates the state of this switch Figure 5 17 below illustrates this bit Status Register 3 EEE SE IK AE NEE Receiver i Auxilary AM Freg AM Fred BUST Operational Mode Status Stor a Input Counter Counter Flag S
45. nnnanccnnnnnnnos 42 Figure 5 10 TLM2 PCM Output Coupling Selection ee ee EE ee AE EE ee ee ee ee 42 Figure 5 11 TEM Outout Gain GonirolS osse dotada ai ats 43 Figure 5 12 AM Low pass Output Filter Command Status ccccccccccononncccnnnccnnnnonancnnnnnnnnonancnnnnnnnos 44 Figure 5 13 AM Frequency Counter RegisSters occccccccconconncccnonconnononancnnnononncnnnnnonancnncononanennnnss 45 Figure 5 14 AM Output Gain OOFITEOL iss EE lin 47 Figure 5 15 AGC Time Constant Selection oooncccnncccccoccnnncnnnncnnnnnnonncnnnonononannnnnnnnonononanncnnannnnos 48 Figure 5 16 Accessory Output Selection oooooncccnnncccccononncononononononcnnnononononannnnnnnnnononnannnnnnnnnns 49 Figure 5 17 Auto Store Function Status Flag ccccccccccoccnnncnnnnccccnononncnnnnonononanonnnnnnnnnnannnennnnonnss 50 Figure 5 18 Auxiliary Input Status Flag coooonncccnnccccccononncnnnncnnononcconnnnnnonnnnnnnnnnnnnnononannennnnnnnss 50 U025V203 Lumistar Inc Page 5 12 19 07 LS 25 D LS 25 Version 2 User s Manual 1 Introduction 1 1 General This document is the Hardware User s Manual for the Version 2 Lumistar LS 25 D Multi band RF Downconverter and the LS 25 Multi band FM Receiver These products represent Lumistar s one generation of RF receiver designs that have replaced the original LS 25 receiver series Figure 1 1 on page 8 contains detailed model number construction This document applies to all model combinations indicat
46. nstances of a physical device are present in a system U025V203 Lumistar Inc Page 35 12 19 07 LS 25 D LS 25 Version 2 User s Manual 5 2 4 Configuration Data The receiver provides the application software with hardware configuration information detailing available filters and hardware status This data is held internally in the receiver in a configuration PROM The contents of this configuration PROM are contained in Table 5 2 below PROM Address Offset Hex PROM Address Offset Dec OO JO OI ANO Register Contents IF Filter O Bandwidth kHz IF Filter 1 Bandwidth KHz IF Filter 2 Bandwidth KHz IF Filter 3 Bandwidth KHz IF Filter 4 Bandwidth KHz IF Filter 5 Bandwidth KHz IF Filter 6 Bandwidth KHz IF Filter 7 Bandwidth kHz IF Filter 8 Bandwidth KHz IF Filter 9 Bandwidth kHz IF Filter 10 Bandwidth kHz IF Filter 11 Bandwidth kHz Video Filter 0 Bandwidth KHz Video Filter 1 Bandwidth kHz Video Filter 2 Bandwidth KHz Video Filter 3 Bandwidth kHz Video Filter 4 Bandwidth kHz Video Filter 5 Bandwidth kHz Video Filter 6 Bandwidth kHz Video Filter 7 Bandwidth kHz Video Filter 8 Bandwidth kHz Video Filter 9 Bandwidth kHz ER ER ER Video Filter 10 Bandwidth KHz Video Filter 11 Bandwidth kHz Unused Unused RF Band 0 Lower Band Limit MHz RF Band 0 Upper Band Limit MHz RF Band 1 Lower Band Limit MHz RF Band 2 Lower Band Limit
47. nter the frequency in the pop up dialog box shown in Figure 4 5 below left and click OK The updated frequency will be displayed as shown in Figure 4 5 below right red oval Note that the supported tuner resolution is 50 KHz and that entered values will be rounded off the nearest 50 KHz value in the display Frequency values outside of the ranges specified above will result in an error message with no change in frequency the default frequency is 2200 00 MHz Also note that the user may enter the data stream bit rate in bits second and indicate if the stream encoding is non NRZ bi phase miller etc as shown in the yellow oval in the figure below U025V203 Lumistar Inc Page 23 12 19 07 LS 25 D LS 25 Version 2 User s Manual Enter the Tuning Frequency in MHz X L5 25vV7 Card 1 File Reset 2200 00 2400 00 1710 00 1850 00 1435 00 1540 EE EE Data Info NN TN Strength Peak Dev kHz Figure 4 5 Tuning Frequency Display 4 1 2 IF Bandwidth The Version 2 Lumistar LS 25 D Multi band RF Downconverter and the LS 25 Multi band FM Receiver are factory configured to support up to twelve 12 separate 2 IF bandwidths Standard bandwidths include 500kHz 1MHz 1 5MHz 2 5MHz 3 5MHz 4MHz eMHz 8MHz 10MHz 12MHz 16MHz and 20MHz At the factory the selected 2 IF bandwidth values are programmed into a configuration PROM see paragraph 5 2 6 on page 39 for more details and are used by the LDPS application to populate
48. on 2 User s Manual TCXO Set Screw Heat Sink J4 2 SW3 J3 x Status LEDs m Product Identification Serial No Option Information SW2 Figure 3 2 LS 25 LS 25 D ISA Outline Drawing U025V203 Lumistar Inc Page 15 12 19 07 LS 25 D LS 25 Version 2 User s Manual All Switches shown in factory default positions Auto setup Mode Switch 20MHz Reference Termination Factory Use Only ON Enabled ON 750 OFF Proper Operation OFF Disabled OFF High Impedance gt 1KQ Factory Use Only 20MHz Reference Selection Factory Use Only OFF Proper Operation ON Internal Output from J1 OFF Proper Operation OFF External Input to J1 Address Selection Switches ISA ONLY ON Logic 1 OFF Logic 0 Address switches indicate 0x340 SW4 1 A9 Address Bit SW4 2 A8 Address Bit SW4 3 A7 Address Bit SW4 4 A6 Address Bit SW4 5 A5 Address Bit SW4 6 A4 Address Bit SW4 7 A3 Address Bit SW4 8 unused Figure 3 3 Receiver Configuration Switches 3 3 Physical Installation To install the receiver in the target computer system the following procedure should be followed 1 Perform a normal system shutdown of the PC system and remove the primary power plug Warning Installation of the receiver in a powered platform will cause immediat
49. ownconversion stage Similar to the 1 Downconversion stage it contains a mixer to convert the 1 IF frequency to a second IF frequency of 70MHz If the RF frequency band is relatively low as is the case for P Band inputs the on board processor can bypass the 2 Downconversion stage switching to a single superhetrodyne process In either case a low pass filter is applied to the signal path at the output of this stage to reduce harmonics and low frequency noise from being applied to subsequent stages U025V203 Lumistar Inc Page 11 12 19 07 LS 25 D LS 25 Version 2 User s Manual 24 2 Local Oscillator The second LO is injected into the mixer of the 2 Downconversion stage to provide the second IF frequency of 70MHz Like the first conversion stage the second LO utilizes low side injection for this conversion A low pass filter is applied to the LO output to minimize spurious and harmonic signals from being converted in the 2 Downconversion stage The 2 LO is automatically disabled for RF bands that employ a single super heterodyne process 25 2 IF Filter From the output of the 2 conversion stage the resulting intermediate frequency is then applied to a group of bandpass filters The 2 4 IF stage contains 4 or 12 IF SAW filters centered at 7OMHZ and varying in bandwidth from 500kHz to 36MHz 2 6 Logarithmic Amplifier AM Demodulation Outputs from the 2 IF Filter Stage are routed to the final gain stage in the receiver A
50. process is complete 3 Register Example Tune the Receiver to 2252 5MHz CMD6 2252 5MHz 256MHz 8 79 8 CMD5 2252 5MHz MOD 256MHz 1MHz 204 5 204 CMD4 2252 5MHz MOD 1MHz 10kHz 50 5 2 6 IF Filter Selection The receiver provides for the selection of one of twelve 2 IF filter bandwidths The available bandwidths are indicated in the configuration PROM locations 0 through 11 If the PROM location for a particular filter contains a value of 0 this indicates that the filter is not installed and should not be selected Figure 5 6 below contains the register contents required to select the IF filters Command Register 2 er e f ons se o 002 oer oe Video Filter Select IF Filter Select 0000 IF Filter 0 PROM Address 0 0001 IF Filter 1 PROM Address 1 0010 IF Filter 2 PROM Address 2 0011 IF Filter 3 PROM Address 3 0100 IF Filter 4 PROM Address 4 0101 IF Filter 5 PROM Address 5 0110 IF Filter 6 PROM Address 6 0111 IF Filter 7 PROM Address 7 1000 IF Filter 8 PROM Address 8 1001 IF Filter 9 PROM Address 9 1010 IF Filter 10 PROM Address 10 1011 IF Filter 11 PROM Address 11 All other combinations reserved Figure 5 6 IF Filter Selection Selection of the IF filter should follow the process below 1 Ensure that the BUSY bit is not set Status Register 3 bit 7 2 Enter the desired IF Filter number in bits 3 through 0 of Command Register 2 5 2 7 Vid
51. quency Read Mode Status IE 3 ICO RE SERE Receiver Auto rs BUSY Operational Mode Status Store Input Flag Status Stalus 0 AM Heer act dl Less than 65536 Hz 1 AM Heer act dl Greater than 65535 Hz 0 AM Ps cet Counter Data Stale 1 AM parce cet Counter Updated Status Register 6 7 AM Frequency 8 LSBs AM Frequency 8 MSBs Figure 5 13 AM Frequency Counter Registers U025V203 Lumistar Inc Page 45 12 19 07 LS 25 D LS 25 Version 2 User s Manual Access to the AM Frequency Counter should follow the process below Ensure that the BUSY bit is not set Status Register 3 bit 7 The application software should monitor the AM Frequency Update flag and the AM Counter Overflow flag in host Status Register 3 If the AM Frequency Update flag is set the AM Counter values are updated and available to be read by the application If the AM Frequency Update flag is set the application should take note of the state of the AM Counter Overflow flag This flag indicates the whether the counter has overflowed indicating that the frequency values is greater than 65535 Hz If this flag is set the host should add 65536 to the counter values read to determine the actual frequency 3 Once the AM Frequency Update flag is set the AM Frequency Read Mode should be commanded by setting bits 6 through 4 of Command Register 3 as follows 100 4 Once the mode command has been sent the BUSY status flag will be set while the coun
52. tatu Status Update Overflow Auto store Mode Disabled 1 Auto store Mode Enabled Figure 5 17 Auto Store Function Status Flag 5 2 21 Auxiliary Input Status The J5 connector provides an auxiliary T TL level input to the receiver This can be used by the application software to signal a change of state command or as a general purpose status flag The status of this input can be found in Status Register 3 Figure 5 18 below illustrates this input status otatus Register 3 Receiver Auto xillary AM Freq AM Freq BUSY Operational Mode Status Store ut Counter Counter Flag Status Status Update Overflow 0 Auxillary Input Logic 0 1 Auxillary Input Logic 1 Figure 5 18 Auxiliary Inout Status Flag U025V203 Lumistar Inc Page 50 12 19 07
53. te in bits 0 and 1 of Command Register 0 Information If it is desirable to have the application software display the available time constants the software must multiply the values found in the configuration PROM by 100usecs 5 2 19 Accessory Control Selection Bits 3 and 4 of Command Register 0 allow the application software to select Accessory Controls found on the J3 connector These controls provide TTL level output switching which may be used for customer specific applications Figure 5 16 below contains the Accessory Control selection U025V203 Lumistar Inc Page 48 12 19 07 LS 25 D LS 25 Version 2 User s Manual Command Register O per eno ons ou oo ote oni oe FM FM TLM2 Output Coupling AGC Time Constant Select Unused Data Polarity Source 00 Acc Out 1 LOW Acc Out 2 LOW 01 Acc Out 1 HIGH Acc Out 2 LOW 10 Acc Out 1 LOW Acc Out 2 HIGH 11 Acc Out 1 HIGH Acc Out 2 HIGH Figure 5 16 Accessory Output Selection Selection of the Accessory Output Controls should follow the process below 1 Ensure that the BUSY bit is not set STATS bit 7 2 Enter the desired logic state in bits 3 and 4 of Command Register O 5 2 20 Auto store Status The receiver has the ability to store its presently programmed configuration and then automatically resume this state upon power up This function allows the receiver to be started without the necessity to i
54. ter values are transferred to Status Register 6 and Status Register 7 5 When the BUSY flag is low the 8 LSBs of the counter value can be read from Status Register 6 and the 8 MSBs of the counter value can be read from Status Register 7 1 2 N Caution The AM Frequency Counter is active during all phases of operation Certain modulation formats and noise patterns may make the output values erroneous It is suggested that the application provide a means to halt the display of this counter to reduce potentially confusing values Information Updates to the AM Counter are performed by on board counters which have a 1Hz update rate High rate software monitoring of this value is unnecessary and wasteful 5 2 17 AM Output Gain Controls The receiver provides the application software gain control of the AM output signal This control is provided via a digital potentiometer referred to in this documentation as a Digipot The AM output gain control Digipot contains 100 steps of gain adjustment The controls may be individually stepped in either direction or be programmed to a specific setting via the application software interface The device does not provide feedback of the actual setting so the application software must keep track of the control setting The AM output signal comes factory configured for a 2Vp p output at an AM modulation depth of 50 To increase the AM output voltage the Digipot must be decremente
55. uning process is complete w N 5 U025V203 Lumistar Inc Page 43 12 19 07 LS 25 D LS 25 Version 2 User s Manual For the LS 25 D this TLM Gain Control is non functional 5 2 14 AM Index Depth Status Status Register 2 contains the AM Index or AM Depth that has been detected in the post processing of the AM demodulation In AM modulation 100 modulation is defined as the level where the negative peaks of the modulating signal reduce the transmitted signal output to zero The values returned indicate the percentage of AM modulation detected by the receiver These values will vary from 0 to 100 which are direct percentage relations It is important to note that AM Index detection is performed during all operational phases of the receiver Detection of small amounts of AM that are a result of signal noise or other modulation formats is considered normal 5 2 15 AM Output Low pass Filter Selection Both receiver types allow the application software to add a low pass filter to the AM output Three filter selections can be made along with a by pass mode Since the configuration PROM does not contain the cutoff frequencies for the filters the cutoff frequencies are returned to the application software in Status Register 6 and Status Register 7 Figure 5 12 below contains the registers associated with the AM output low pass filter Command Register 3 ur f eso ms ens ms m2 mer eso AM Low pass Output iese Operationa
56. vides interface pin outs and mating connector information for the J2 and J5 connectors Figure 3 5 on page 19 provides interface pin outs and mating connector information for the J3 connector The LS 25 and LS 25 D products are shipped with a mating pigtail cable to interface with the J5 connector Figure 3 6 on page 20 illustrates these cable configurations U025V203 Lumistar Inc Page 17 12 19 07 LS 25 D LS 25 Version 2 User s Manual PCI Panel Funcion RF inpur 421 Panel Conmecion SMA Female Mating Cannecsor SMA Male Funcian RCVRE Imerfaoes J5 See Table Penal Compactor 13 43 Hybrid D Sub Famala Mating Connector 1293 Hybrid D Sub Male Funcion RF INpu 121 Panel Connector SHA Female ISA Pan el Maling Ganesan SMA Male Function ROW Interfaces LES See Table Panel Connector 1344 Hybrid D Sub Female hating Connector 1344 Hybrid D Sub Male 32 TuMiOupat os 7vep wary 750 4 Auslary TTL inpurOupa mm Tm Auxiliary AM Out ie AMTT Ow Tanina 6 Rss AGCOupu 9 4Vpp KO A rre 068 A SSCS 2 fuweus NY TIT Auxiliary TTL inpuUOutput Auxiliary TTL Input Output reer AM Gul veta RSSIAGC Output 7 10 Grund Jm tV 0 _ l Pin 5 can be configured with these alternate signals Consult factory Tar availability Figure 3 4 J2 J5 Pin out and Interface Connections U025V203 Lumistar Inc Page 18 12 19 07 LS 25 D LS 25 Versio
57. y Mode Control has three sub modes IF BW Percentage Approx FM Deviation and None as shown in Figure 4 13 below left The None mode display is shown in Figure 4 13 below right L5 25V2 Card 1 L5 25Y2 Card 1 Tuner Frequency MHz File Reset IF Bandwidth MHz Data Info Video Filter Bandwidth MHz APA Bit Fate 1 000000 Demod Controls Mon MR Code El Output Gain Controls AM Controls RSSI AGC Controls E Strength Deviation Display Mode IF Bw Percentage v Apprax FM Deviation None Frequency IF By Meld da AGC Time Figure 4 13 Deviation Display Modes The Approx FM Deviation sub mode is shown in Figure 4 14 below right and indicates the peak FM deviation of the signal red oval The IF BW Percentage sub mode is shown in Figure 4 14 below left and indicates the deviation percentage of the signal yellow oval For more information the FM deviation status see paragraph 5 2 9 on page 40 LS 275 2 Card 1 L5 25vz Card 1 File Reset File Reset Data Info Data Info Bit Rate 1000000 Bit Rate 1 000000 Non MR Code El Mon MR Code Bi Strength Strength ail Deviation ll Peak Dey kHz Frequency IF E Video Filter Ev ideo Filter Buy AGC Time 246 Time Deviation Percentage Peak Deviation Figure 4 14 Additional Deviation Displays U025V203 Lumistar Inc Page 29 12 19 07 LS 25 D LS 25 Version 2 User s Manual 5 Programming This chapter provides receiver so
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