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1. press X Key Note This setting is memorized automatically 4 CS command To set an external clock phase synchronous External clock synchronize ON OFF set In case synchronize ON press T key In case synchronize OFF press 0 key In case Exit press X key Note This setting is memorized automatically 5 ECHO command To set ECHO BACK Echo Back ON OFF set ECHO ON press 1 Key ECHO OFF press 0 Key Exit press X Key Note This setting is memorized automatically 6 EXIT command To end sub menu mode and return to Main mode 7 HELP command To get the sub mode menu help message DPL 3 2GXF User s Manual Page12 E Option Flange Type Case Outline Dimension Dimension of mounting holes 122 3 8 80 eg OS DPL 3 2GXF User s Manual Page13 HM Cautions 1 Use the low noise power supply When the switching power supply is used use a noise filter to reduce switching noise from the power supply 2 In external clock mode use the external 1OMHz clock having the frequency accuracy of less than 3ppm 3 Pay attention airflow and thermal resistance when embedded to prevent not to raise temperature of the unit Descriptions of this manual are subject to change without notice No portion of this manual can be reproduced without the permission of Di2. 130 0 140 0 150 0 160 0 170 0 180 0 49 100 tk 10k 100k IM 10m M Terminal GND Terminal 5V Power Supply External Ref Input RS232C Port Output DPL 3 2GXF User s Manual Page4 SV Power supply terminal Connect 5V 5 the power supply having more than 1 5A current capacity Ground terminal Connect the ground of the power supply Caution Do not touch side of the power supply to the ground To use a heat shrinking tube 1s recommended for its protection External reference clock input terminal Apply 10MHz reference clock to this connector SMA which has 50Q input impedance The external clock mode must be selected RS 232C port This is a connector for serial communication for setting frequency and output level and so on Interface is RS 232C Use a D sub9 pin male connector and a straight cable for PC serial port Output port This is a connector of output signal Use SMA male connector Outline Dimension DPL 3 2GXF User s Manual Pages M RS 232C port communication condition Type of communication Interface Level Communication speed Data length Stop bit Parity Flow control 9 pin D Sub pin assignment Mounting Holes M3 4PL Same mounting holes on the other side Hole Depth 10mm Asynchronous serial data RS 232C 9600BPS 8 bit 1 bit none none Pin Signal name Signal direction Remarks 1 CD DPL terminal
3. Not used 6 DSR gt Connected to DTR internally 2 RD gt 7 RTS Connected to CTS internally 3 TD 8 CTS gt Connected to RTS internally 4 DTR Connected to DSR internally 9 RI PLL unlocked signal 5 GND DPL 3 2GXF User s Manual Page6 Pin 9 is an open drain output and used as a PLL unlocked signal When PLL is locked Low Short to GND When PLL is unlocked High Open Please refer to the above table to set serial communication parameters of your terminal software Any communication software such as Hyperterminal can be used HM How to control The following message is returned when DPL 3 2GXF is powered on DPL 3 2GXF V1 0 Firm V1 0 MAIN MENU FX Frequency SET x Output Level SET PM Phase Offset SET SS Output ON FS Output OFF NE Fra Level SAVE SUB SUB MENU ENTRY sts _ STATUS HELP MAIN MENU CONTENTS SYSTEM STATUS Frequency 1 234 567 890 123 Hz Output Level 0 0 dBm ae is is just a example Hee a 0 Deg The status depends on how the unit is set PLL LOCKED 10MHz Base Clock Source Internal External Clock Synchronize OFF After the prompt 2Ahex is returned commands can be entered There are two modes in command menu main menu mode and sub menu mode Frequency and output level setting can be done in main menu mode System setting command such as setting 10MHZ clock source can be done in sub menu mode Enter space code 2
4. only is returned Each time the output data is set continuously make sure whether 2Ahex code is returned and then set the new data Please note that even if the output level of beyond the 14dBm was set it would be accepted but the output level accuracy would not be guaranteed 10dBm A_10 CR 0 5dBm A_ 0 5 CR How to confirm the setting value of output level data A CR or A_ CR 3 P command Phase Offset setting Enter a desired phase offset value following P and space The setting value can be set in degree unit with decimal point 0 1degree digit can be allowed but if omitted it is assumed as 0 2Bhex expression can be omitted but 2Dhex must be entered The revived data is correct the phase offset setting is completed it returns 2Ahex code as a prompt When the data received incorrectly or some errors occurred during the transfer it is returned ERROR the type of error and code in case ECHO BACK is set ON When ECHO BACK is set OFF only is returned Each time the phase offset data is set continuously make sure whether 2Ahex code is returned and then set the new data DPL 3 2GXF User s Manual Page9 Example 90 P_90 CR 0 5 P_ 0 5 CR How to confirm the setting value of phase offset data P CR or P_ CR Example 45 45 0 Deg 4 ON command output ON Your setting frequency or output level will be
5. output 5 OFF command output OFF Output is shut off 6 SAVE command to memorize the setting value The current frequency and output level can be memorized IF this command is completed Done and were returned When the power is on next time the stored data can be output 7 SUB command to select to the sub menu mode Enter EXIT CR to back to main menu mode 8 STS command To get the current status The current frequency output level phase offset output status power supply voltage PLL status 1OMHz reference signal source will be returned For example SYSTEM STATUS Frequency 1 234 567 890 123 Hz Output Level 0 0 dBm Phase Offset 0 0 Deg Output ON System Power Voltage 4 96 V PLL LOCK 10MHz Standard Clock Source Internal External Clock Synchronize OFF 9 HELP command To get the menu help message The menu for all commands is displayed DPL 3 2GXF User s Manual Page10 M Sub menu mode for system setting SUB MENU CSEL 10MHzC lock Source Select CLK 10MHzC lock Adjust ONOFF Power on Output ON OFF Set CS External Clock Synchronize ON OFF set ECHO ECHO ON OFF Set EXIT SUB MODE EXIT HELP SUB MENU CONTENTS SUB Note In this mode SUB is returned instead of 1 CSEL command Internal or external clock mode can be
6. 0hex after each command to set a value then enter return key ODhex as a delimiter When ECHO BACK is set ON entered codes are returned with return code ODhex and line feed code OAhex When ECHOBACK is set OFF only 2Ahex is returned DPL 3 2GXF User s Manual Page7 M Main menu mode MAIN MENU SX SSS Frequency SET AC SA Output Level SET PE Phase Offset SET ON Output ON CSS Output OFF ANE Frq amp Level SAVE SUB _ SUB MENU ENTRY sts _ STATUS HELP MAIN MENU CONTENTS 1 F command Frequency setting The frequency setting has four formats GHz unit input MHz unit input KHz unit input and Hz unit input Add G M K after the setting value for distinguishing the unit A GHz unit can be set maximum 12 digits following decimal point and also a MHz unit maximum 9 digits a KHz unit maximum 6 digits Hz unit maximum 3 digits When DPL 3 2GF received the data correctly it returns 2Ahex as a prompt which means the frequency setting is completed When the data received incorrectly or some errors occurred during the transfer ERROR the type of error and 2Ahex code is returned After that 2Ahex code is returned then you can enter new command This is the case ECHO BACK is set ON When ECHO BACK is set OFF 3Fhex is returned instead of code The message ERROR and the type of error are not retu
7. Programmable RF Signal Generator DPL 3 2GXF User s Manual Digital Signal Technology Inc 1 7 30 Higashi Benzai Asaka Saitama 351 0022 Japan TEL 81 48 468 6094 FAX 81 48 468 6210 http www dst co jp email info dst co jp DPL 3 2GXF User s Manual Pagel DPL 3 2GXF is a wide band synthesizer utilizing 48 bit DDS Direct Digital Synthesizer and PLL Phase Locked Loop technique It provides pure sine wave signal output from SMHz 3 2GHz in 0 001Hz steps The stable output level has been achieved in the range of 40dBm 14dBm with ALC function DPL 3 2GXF is having internal 10MHZ clock reference and might be used as not only a stand alone synthesizer but also the clock source for embedded system In case the accurate 1OMHz clock is available externally the frequency stability can be improved Parameter settings such as frequency output level and so on can be controlled by serial data which is connected to PC communication port and can be memorized into EEPROM An optional board FIX 3 2GX is available to control any settings without using a PC M Specification Power supply 4 75V 4 7V ISA Be careful with voltage drop of power supply line If the supply voltage at power input terminal is lower than 5V the maximum output level and spurious would be worse Frequency range 5MHz 3200MHz Frequency resolution 0 001Hz Output level 14dBm 40dBm RF OFF output level 60dBm or less Output level accuracy 1dB or less ou
8. gital Signal Technology Digital Signal Technology assumed no liability for damages that may occur as a result of handling by users The contents of this manual do not apply to the warranty in executing an industrial property or other rights nor permission for the right of execution Digital Signal Technology assumes no responsibility for the third party s industrial property occurred from using the circuits described in this manual DPL 3 2GXF User s Manual Page14
9. rned Each time the frequency data is set continuously be sure 2Ahex is returned after each command Please note that even if the frequency of beyond the 3 2GHz was set it would be accepted but the quality of the signal would not be guaranteed Here are some examples how to set frequencies How to set on GHz unit Please note that under score means SPACE 20hex and CR means return code 0Dhex 3 2GHz F_3 2G CR 1 234567890123GHz F_1 234567890123G CR How to set on MHz unit 100MHz F_100M CR 123 456789123MHz F_123 456789123M CR DPL 3 2GXF User s Manual Page8 How to set on KHz unit 20 000KHz F_20000K CR 123 456 789KHz F_123456 789K CR How to set on Hz unit 1 000 000 000 000Hz F_1000000000 CR 1 234 567 890 123Hz F_1234567890 123 CR How to confirm the setting value F CR or F_ CR 2 A command Output level setting Enter a desired output level following A and space The setting value can be set in dBm unit with decimal point 0 1dB digit can be allowed but if omitted it is assumed as 0 4 2Bhex expression can be omitted but 2Dhex must be entered The revived data is correct the output level setting is completed it returns 2Ahex code as a prompt When the data received incorrectly or some errors occurred during the transfer it is returned ERROR the type of error and code in case ECHO BACK is set ON When ECHO BACK is set OFF
10. switched with this command 10MHz Standard Clock Source Select In case Internal Clock Source put Key In case External Clock Source put E Key In case Exit put X Key Note The data input here will be memorized automatically 2 CLK command To adjust the internal reference clock 1 First confirm whether the current clock mode is internal mode with using STS command If not change to internal clock mode with CSEL command 2 Connect the unit to a high resolution frequency counter and set a frequency 3 Enter CLK command and the message is displayed as below Internal_10MHz_Standard_Clock_Adjust U u D d key Clock Adjust S Key Save K Key Exit 1840 This number is just an example with no meanings Adjust the frequency by entering the following character till the frequency is given the right one on Frequency Counter u To step the frequency up finely d To step the frequency down finely U To step the frequency up coarsely D To step the frequency down coarsely 4 Enter S for saving the setting value 5 Enter X for exiting this CLK command DPL 3 2GXF User s Manual Pagell 3 ONOFF command To set output ON or OFF in case of setting the power on Power on Output State In case Power on Output ON press 1 Key In case Power on Output OFF press 0 Key In case Exit
11. tput level 30dBm or more 2dB or less output level from under 30dBm 40dBm exclusive Output level resolution 0 1dB Phase offset range 360 0 360 0 Phase offset resolution 0 1 Output impedance nominal 50 Q Spurious 60dBc or less DPL 3 2GXF User s Manual Page2 Harmonic spurious Internal reference clock Frequency accuracy Long term frequency stability External reference input Frequency Input level Impedance Interface Type Connector Environmental condition Operating temperature range Dimension Weight 30dBc or less When the output level is from 10dBm to 30dBm and supply voltage is from 5V to TV 2 5ppm or less 0 C 50 C 1ppm or less per year 10MHz 6dBm 3dB 50Q Asynchronous serial data RS 232C Use a straight cable for PC serial port D Sub 9 pin 0C 50 C W 100xH35xD100 mm 300g M Phase Noise Typical under the internal reference clock mode Freq Hz Offset from Carrier Hz 10 100 1K 63 7 80 8 93 0 74 9 93 1 104 1 78 5 98 0 110 6 85 0 103 2 115 6 92 5 115 1 125 9 DPL 3 2GXF User s Manual Unit is in dBc 10K 1M 10M 90 5 136 1 145 0 99 4 134 0 135 2 105 5 134 1 134 5 111 4 133 2 133 3 123 6 132 8 132 8 Page3 bPhase Noise 10 00dB Ref 20 00dBc Hz 20 00 Pj 40 00 50 00 60 00 90 00 100 0 110 0 120 0 100MHz
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