Texas Instruments MSOP8 User's Manual
Contents
1. Caution The ADC s that are compatible with this EVM have a variety of power supply requirements Check the appropriate data sheets and verify all power supplies are within the safe operating limits of the ADC before applying power to the EVM 4 3 Reference Voltage 4 2 The modular MSOP8 can be configured to use the onboard reference buffer circuits U2 and U4 or an external reference applied to J1 20 Jumpers JMP5 and JMP6 control the reference source In the factory default position shunt on JMP5 pins 1 2 a 2 5 V reference is supplied by U2 Moving the shunt at JMP5 to positions 2 3 allows an external reference applied to J1 20 to be used Caution The ADC s that are compatible with this EVM have a variety of reference requirements Check the appropriate data sheets and verify external reference sources are within the safe operating limits of the ADC before applying power to the EVM JMP6 controls the actual application of the reference source to the ADC Note that JMP6 is not installed on EVM boards for ADS7818 ADS7834 and ADS7835 devices In the factory default position shunt on pins 1 2 the reference source is the on board reference buffer circuit Moving the shunt on JMP6 to pins 2 3 allows the voltage applied to the ADC Vadc to be used as the reference source Chapter 5 EVM Operation The following section provides information in the analog input digital control and general operating conditions2. Texas Instrumenis FCC Warning To obtain a copy of any of the following TI documents call the Texas Instruments Literature Response Center at 800 477 8924 or the Product Information Center PIC at 972 644 5580 When ordering identify this booklet by its title and literature number Updated documents can also be obtained through our website at www ti com EVM Compatible Device Data Sheets Literature Number ADS7816 SBAS110 ADS7817 SBAS230 ADS7818 SBASO78 ADS7822 SBAS062 ADS7834 SBAS098 ADS7835 SBAS102 ADS8320 SBAS108 ADS8321 SBAS123 ADS8324 SBAS172 ADS8325 SBAS226 Application Notes Additional Literature Literature Number Op Amps for Everyone SLOD006 5 6K Interface Board SLAU104 Single and Bipolar Supply Signal Conditioning Boards SLAU105 Third Party Tools Vendor Website HPA449 Development Board MSP430 Tools www softbaugh com Speedy 33 DSP Tools www hyperception com This equipment is intended for use in a laboratory test environment only It gen erates uses and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to subpart J of part 15 of FCC rules which are designed to provide reasonable protection against radio frequency interference Operation of this equipment in other en vironments may cause interference with radio communications in which case the user at his own expense will be required to take whatever measures may be required to correct t
3. BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESSED IMPLIED OR STATUTORY INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE The user assumes all responsibility and liability for proper and safe handling of the goods Further the user indemnifies TI from all claims arising from the handling or use of the goods Please be aware that the products received may not be regulatory compliant or agency certified FCC UL CE etc Due to the open construction of the product it is the user s responsibility to take any and all appropriate precautions with regard to electrostatic discharge EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES TI currently deals with a variety of customers for products and therefore our arrangement with the user is not exclusive Tl assumes no liability for applications assistance customer product design software performance or infringement of patents or services described herein Please read the EVM User s Guide and specifically the EVM Warnings and Restrictions notice in the EVM User s Guide prior to handling the product This notice contains important safety information about temperatures and voltages For further safety concerns please contact the Tl application engineer Persons handling the product must have electronics training and observe good laborat
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5. LVC1G125 12500 TI Blvd Dallas Texas 75243 TS ADSMSOP8 Evaluation Module Drawn By Tom Hendrick Schematic Engineer Tom Hendrick SIZE B DATE 31 Jul 2003 REV B FILE EDGE 6450847 SHEET 1 OF 1
6. Wi TEXAS INSTRUMENTS Modular MSOP8 EVM User s Guide September 2003 Data Acquisition SLAU115 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries TI reserve the right to make corrections modifications enhancements improvements and other changes to its products and services at any time and to discontinue any product or service without notice Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete All products are sold subject to Tl s terms and conditions of sale supplied at the time of order acknowledgment Tl warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with Tl s standard warranty Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty Except where mandated by government requirements testing of all parameters of each product is not necessarily performed Tl assumes no liability for applications assistance or customer product design Customers are responsible for their products and applications using Tl components To minimize the risks associated with customer products and applications customers should provide adequate design and operating safeguards Tl does not warrant or represent that any license either express or implied is granted under any Tl patent right copyright mask work right or other T
7. can be identified using the EVM schematic located in the EVM User s Guide When placing measurement probes near these devices during operation please be aware that these devices may be very warm to the touch Mailing Address Texas Instruments Post Office Box 655303 Dallas Texas 75265 Copyright O 2003 Texas Instruments Incorporated Preface Read This First About This Manual This user s guide describes the characteristics operation and use of the Modular MSOP8 EVM This EVM is a multi device 12 to 16 bit SSI analog to digital converter Evaluation Module A complete circuit description as well as schematic diagram and bill of materials are included How to Use This Manual This document contains the following chapters Chapter 1 EVM Overview Chapter 2 Analog Interface Chapter 3 Digital Interface Chapter 4 Power Supplies Chapter 5 EVM Operation Chapter 6 EVM Bill of Materials and Schematic Information About Cautions and Warnings This book may contain cautions and warnings This is an example of a caution statement A caution statement describes a situation that could potentially damage your software or eduipment This is an example of a warning statement A warning statement describes a situation that could potentially cause harm to you The information in a caution or a warning is provided for your protection Please read each caution and warning carefully Related Documentation From
8. ce Input 2 5V NOM 2 525 MAX J1 15 J1 1 J1 19 Analog ground connections except J1 15 odd 2 1 2 2 Chapter 3 Digital Interface The Modular MSOP8 EVM is designed for easy interfacing to multiple control platforms Samtec part numbers SSW 110 22 F D VS K and TSM 110 01 T DV P provide a convenient 10 pin dual row header socket combination at J2 This header socket provides access to the digital control and serial data pins of the MSOP8 EVM Consult Samtec at www samtec com or 1 800 SAMTEC 9 for a variety of mating connector options Table 3 1 Digital Interface Pin Out Pin Number Signal Description J2 1 Chip Select Active low signal enables data transfer jumper configurable see schematic J2 3 SCLK Serial Clock J2 5 SCLKR Serial Clock Return for DSP Host systems J2 7 Frame Sync for DSP host systems alternate Chip Select through JMP2 see schematic J2 9 FSR Frame Sync Return for DSP Host systems J2 13 SDO Serial Data Output J2 15 Unused J2 17 Unused J2 19 SPARE 3 1 3 2 Chapter 4 Power Supplies The Modular MSOP8 EVM board requires 5 V dc for the analog section This includes the voltage reference U2 the reference buffer U4 and optionally the ADC installed on the EVM via JMP1 Supply voltages of 1 8 V to 5 V dc for the digital section are also required When used in combination with one of the DAP Interface boards J3 provides connection to the common power bus described i
9. com Broadband www ti com broadband Interface interface ti com Digital Control www ti com digitalcontrol Logic logic ti com Military www ti com military Power Mgmt power ti com Optical Networking www ti com opticalnetwork Microcontrollers microcontroller ti com Secruity www ti com security Telephony www ti com telephony Video amp Imaging www ti com video Wireless www ti com wireless Mailing Address Texas Instruments Post Office Box 655303 Dallas Texas 75265 Copyright O 2003 Texas Instruments Incorporated EVM IMPORTANT NOTICE Texas Instruments TI provides the enclosed product s under the following conditions This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not considered by TI to be fit for commercial use As such the goods being provided may not be complete in terms of required design marketing and or manufacturing related protective considerations including product safety measures typically found in the end product incorporating the goods As a prototype this product does not fall within the scope of the European Union directive on electromagnetic compatibility and therefore may not meet the technical requirements of the directive Should this evaluation kit not meet the specifications indicated in the EVM User s Guide the kit may be returned within 30 days from the date of delivery for a full refund THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE
10. eader Samtec TMMH 103 C S T JMP6 JMP3 4 Pin dual row TH header 8 positive TSW 104 07 L D Note The device installed at location U1 is dependent on the EVM ordered This device is soldered to the board for best perfor mance U1 may be replaced with any device listed in the EVM compatible device data sheets table found at the beginning of this document U Varies see Note Bere Topic Page 6 4 EVMSchematic ee aaa a leida 6 2 EVM Schematic 6 1 EVM Schematic The schematic diagram is provided as a reference 6 2 Revision History REV ECN Number Approved B Initial Release TH 5Va 5Va 5Va LVa JMP1 C11 6009 OUT 2 0 1uF Te 3 GND V adc 1 JMP5 U4 REF3025 B 1 R12 aad C10 OPA353N VREF R6 10uF 0 ohm C6 C8 10uF 10uF all V i o V ilo C2 R11 NI NI wo ua C12 ar as 1 0 1uF lt gt J1 0 ohm 0 ohm TP2 i AD IN N E e AD IN C4 6 SDO 2 NI l FE R1 R3 1 7 gl 3 E ce 77 o SN74LVC1G125 9 10 0 ohm 0 ohm Q NI 11 12 o 13 14 c3 8 NY 15 16 REF NI 17 18 REF V i o 19 20 N wo JMP4 A were alas US NV lt Y TP7 a i l lt ICS A TP1 BERN o UA EE co SN74LVC1G125 C5 y 5Va 10uF V i o TP5 L2 To 15uF TP4 is iy Fe NS TEXAS INSTRUMENTS TP3 LN oo co SN74
11. he Modular MSOP8 Evaluation Module is an updated version of the Burr Brown DEM MSOP8 evaluation board The EVM is designed so that a single printed wiring board PWB supports a variety of high speed 12 and 16 bit serial ADC s The modular EVM form factor allows for direct evaluation of the ADC s performance and operating characteristics This EVM is compatible with the 5 6K Interface Board SLAU104 from Texas Instruments and additional 3rd party boards such as the HPA449 demonstration board from SoftBaugh Inc www softbaugh com and the Speedy33 from Hyperception Inc www hyperception com Chapter 2 Analog Interface For maximum flexibility the Modular MSOP8 EVM is designed for easy interfacing to multiple analog sources Samtec part numbers SSW 110 22 F D VS K and TSM 110 01 T DV P provide a convenient 10 pin dual row header socket combination at J1 This header socket provides access to the analog input pins of the ADC Consult Samtec at www samtec com or call 1 800 SAMTEC 9 for a variety of mating connector options Table 2 1 Analog Interface Pin Out Pin Number Signal Description J1 2 Noninverting Input Differential Devices Analog Input Single Ended Devices J1 4 Inverting Input Differential Devices Analog Ground Single Ended Devices HE HE 41 10 Pins are unused and should be left open for use with future amplifier and sensor J1 12 input modules J1 14 J1 16 J1 18 Unused J1 20 REF External Reference Sour
12. his interference Contents EVNM OVeFVieW TTT 1 1 1 1 1 2 1 25 Introduction eiii AAA ARA 1 2 Analog teria ce aZ ii A a ee eee 2 1 Digital Interface o BERE EE DE AS a a 3 1 Power Supplies i aei ER GEE ta a 4 1 41 ADC lt EE a IE EN MO OE 4 2 4 2 Stand Alone Operation pp 4 2 43 Reference Voltage se 4 2 EVM Operation uu era RI 5 1 5 IO 5 2 5 2 Digital Eontrol Ausreise nn asian Oe ee Rae Fd ob eg DF 5 2 5 3 Chip Select Shut Down 0 5 2 5 4 Digital VO Buffers 0 5 2 5 5 Default Jumper Locations iii EE EE YF FFF R a KR FF ud 5 2 EVM BOM and Schematic c x x x x e x x x K e K eee 6 1 61 EVM Schemali TTT 6 2 Analog Interface Pin OUL 2 1 Digital Interface Pini Out 34 52 DE ST REDE GEREG GG OER OER a dade FYDDE Kie 3 1 Power Supply Pin Out e nennen nennen nenne Y Y a 4 1 5 2 6 1 Chapter 1 EVM Overview The following section gives a general overview of the Modular MSOP8 evaluation board Topic Page E E ESA OO ROSA OOO O Oo 1 2 1 2 introduction a JO DOG aie eye sie O ee pala pers eles 1 2 Features 1 1 1 2 Features Introduction Full featured evaluation board for a variety of single channel eight pin Mi cro SOP 12 and 16 bit serial Output analog to digital converters On board reference and buffer circuits High speed serial interface Modular design for use with a variety of DSP and micro controller interface boards T
13. n document SLAU104 Table 4 1 shows the pin out of J3 Table 4 1 Power Supply Pin Out Signal Pin Number Signal Unused gt t 2 Unused ET 3 4 used DGND 5 6 AGND 1 8VD 7 8 VDi 3 3VD 9 10 5vD When power is supplied to J3 JMP3 allows for one of four different dc voltages to be applied to the digital sections of the ADC See the schematic and PWB silkscreen for details afoajo Topic Page AMADO O We N EE N En 4 2 42 StandlAlone Operation iia 4 2 4 3 Reference Voltage ar T 4 2 4 1 ADC Power 4 1 ADC Power The device installed on the modular MSOP8 EVM has several options in regards to its power source Refer to the schematic for the following discussion JMP1 and JMP3 allow the user to select the power supply used by the ADC When JMP1 is in the default factory position Shunt on pins 1 2 power to the ADC comes from J3 3 or TP5 Single gate digital buffers U3 U5 and U6 are installed on the ADC s digital input output lines to allow operation with low voltage controllers such as the MSP430 The supply voltage to these buffers is determined by JMP3 or the voltage applied to TP7 4 2 Stand Alone Operation When used as a stand alone EVM the analog power can be applied to TP5 referenced to TP6 Digital power can be applied to TP7 referenced to TP4 While filters are provided for all power supply inputs optimal performance of the EVM requires a clean well regulated power source
14. of the Modular MSOP8 EVM Topic Page Sale Analoglinput EE EE EE EE 5 2 5 2 Digital Control EE ee ee e EE EE EE EE 5 2 5 3 EhipSelect shutDown y E 5 2 5 42 Didital OBuffers 5 2 5 5 Default Jumper Locations iss e RARR RA RR RE eee 5 2 5 1 Analog Input 5 1 Analog Input The analog input source can be applied directly to J1 top or bottom side or through optional amplifier and signal conditioning modules The analog input range is dependent on the configuration of the EVM and the ADC installed at location U1 Consult the datasheet for the device to determine the maximum analog input range 5 2 Digital Control The digital control signals can be applied directly to J2 top or bottom side The modular MSOP8 EVM can also be connected directly to a DSP or a micro controller interface board such as the HPA449 See the product folder for the EVM or the installed device for a current list of compatible interface and or accessory boards 5 3 Chip Select Shut Down Jumper JMP2 is provided to allow the selection of the signals applied to the chip select CS or shutdown SHDN pin of the ADC installed on the EVM The factory default condition for the EVM is to place a shunt jumper between pins 1 2 of JMP2 This allows the Frame Sync FS signal from DSP host systems to be used as a chip select for the ADC This signal originates from 42 7 When JMP2 is moved to pins 2 3 the CS SHDN signal is ap
15. ory practice standards No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine process or combination in which such Tl products or services might be or are used Mailing Address Texas Instruments Post Office Box 655303 Dallas Texas 75265 Copyright O 2003 Texas Instruments Incorporated EVM WARNINGS AND RESTRICTIONS lt is important to operate this EVM within the input voltage range of 1 8 VDCto 5 VDC and the output voltage range of 0 VDC and 5 VDC Exceeding the specified input range may cause Unexpected operation and or irreversible damage to the EVM If there are questions concerning the input range please contact a TI field representative prior to connecting the input power Applying loads outside of the specified output range may result in unintended operation and or possible permanent damage to the EVM Please consult the EVM User s Guide prior to connecting any load to the EVM output If there is uncertainty as to the load specification please contact a Tl field representative During normal operation some circuit components may have case temperatures greater than 30 C The EVM is designed to operate properly with certain components above 85 C as long as the input and output ranges are maintained These components include but are not limited to linear regulators switching transistors pass transistors and current sense resistors These types of devices
16. plied via J2 1 5 4 Digital VO Buffers Single gate buffers U3 U5 and U6 are provided to ensure the safe operation of the modular MSOP8 EVM with low voltage host controllers The digital VO voltage applied to these buffers via JMP3 should be set in accordance with the operating voltage of the host controller 5 5 Default Jumper Locations Table 5 1 provides a list of jumpers found on the EVM and their factory default conditions Table 5 1 List of Jumpers Jumper Shunt Position Jumper Description JMP1 Pins 1 2 Controls ADC Supply Voltage default is 5Va Source JMP2 Pins 1 2 Controls ADC CS SHDN Pin default is FS from DSP Host JMP3 Pins 5 6 Controls Digital VO Voltage default is 3 3Vd Source JMP4 CLOSED Ties ANALOG and DIGITAL grounds together JMP5 Pins 1 2 Controls External Ref Source default is 2 5V from U2 JMP6 Pins 1 2 Controls REFERENCE Source to ADC default is onboard reference buffer circuit 5 2 Chapter 6 EVM BOM and Schematic The following table contains a complete bill of materials for the modular MSOP8 EVM bill of materials Table 6 1 Bill of Materials Designators _ Description Manufacturer Mig Part Number C2 TSCA CTS LLE An LL 2222 5 GEG CSCE C10 CSC CS SAE J JE op Sio J18 J28 bottom side Rear side RO RTO RTD RT R2 RG RAR TPT TEE TPS TPS TPT TPATPE U2 REF3025 REF3025AIDBZT U3 U5 U6 SN74LVC1G125 SN74LVC1G125DBVT U4 OPA353N OPA353NA 250 JMP1 JMP2 JMP5 3 Pin 2 mm h
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