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Texas Instruments Modular MSOP8 EVM User Manual Download Page 6

1-1

EVM Overview

 

EVM Overview

The following section gives a general overview of the Modular MSOP8
evaluation board.

Topic

Page

1.1

Features

1-2

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1.2

Introduction

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Chapter 1

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Summary of Contents for Modular MSOP8 EVM

Page 1: ...Modular MSOP8 EVM June 2009 Data Acquisition User s Guide SLAU115A Downloaded from Elcodis com electronic components distributor ...

Page 2: ...ng 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 ...

Page 3: ... SBAS123 ADS8324 SBAS172 ADS8325 SBAS226 ADS8326 SBAS343 Application Notes Additional Literature Literature Number Op Amps for Everyone SLOD006 5 6K Interface Board SLAU104 Single and Bipolar Supply Signal Conditioning Boards SLAU105 FCC Warning 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...

Page 4: ...5 EVM Operation 5 1 5 1 Analog Input 5 2 5 2 Digital Control 5 2 5 3 Chip Select Shut Down 5 2 5 4 Digital I O Buffers 5 2 5 5 Default Jumper Locations 5 2 6 EVM BOM and Schematic 6 1 6 1 EVM Schematic 6 2 Tables 2 1 Analog Interface Pin Out 2 1 3 1 Digital Interface Pin Out 3 1 4 1 Power Supply Pin Out 4 1 5 1 List of Jumpers 5 2 6 1 Bill of Materials 6 1 Downloaded from Elcodis com electronic co...

Page 5: ...Contents ii Downloaded from Elcodis com electronic components distributor ...

Page 6: ...EVM Overview The following section gives a general overview of the Modular MSOP8 evaluation board Topic Page 1 1 Features 1 2 1 2 Introduction 1 2 Chapter 1 Downloaded from Elcodis com electronic components distributor ...

Page 7: ...ce boards 1 2 Introduction The 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...

Page 8: ... Out Pin Number Signal Description J1 2 AD_IN Noninverting Input Differential Devices Analog Input Single Ended Devices J1 4 AD_IN Inverting Input Differential Devices Analog Ground Single Ended Devices J1 6 Unused J1 8 Unused J1 10 Unused Pins are unused and should be left open for use with future amplifier and sensor J1 12 Unused Pins are unused and should be left open for use with future amplif...

Page 9: ...2 2 Downloaded from Elcodis com electronic components distributor ...

Page 10: ...m 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 CS 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 FS Frame Sync for DSP host systems alternate Chip Select through JMP2 see schematic J2 9 FSR Frame...

Page 11: ...3 2 Downloaded from Elcodis com electronic components distributor ...

Page 12: ...es connection to the common power bus described in document SLAU104 Table 4 1 shows the pin out of J3 Table 4 1 Power Supply Pin Out Signal Pin Number Signal Unused 1 2 Unused 5VA 3 4 Unused DGND 5 6 AGND 1 8VD 7 8 VD1 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 f...

Page 13: ...iate 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 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 ref...

Page 14: ...t digital control and general operating conditions of the Modular MSOP8 EVM Topic Page 5 1 Analog Input 5 2 5 2 Digital Control 5 2 5 3 Chip Select Shut Down 5 2 5 4 Digital I O Buffers 5 2 5 5 Default Jumper Locations 5 2 Chapter 5 Downloaded from Elcodis com electronic components distributor ...

Page 15: ...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 J2 7 When JMP2 is moved to pins 2 3 the CS SHDN signal is applied via J2 1 5 4 Digital I O 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 I O voltage appl...

Page 16: ... bottom side 10 Pin dual row SMT socket 20 pos Samtec SSW 110 22 F D VS K 1 J3 bottom side 5 Pin dual row SMT socket 10 pos Samtec SSW 105 22 F D VS K 2 R9 R10 R12 33 Ω 0805 5 0 1W Resistor Yageo America RC0805JR 0733RL 4 R1 R2 R3 R4 R6 0 Ω 0805 0 1 W resistor Yageo America RC0805JR 070RL 5 TP1 TP2 TP3 TP5 TP7 Red test point loop Keystone 5001 2 TP4 TP6 Black test point loop Keystone 5000 0 U1 Var...

Page 17: ...EVM Schematic 6 2 6 1 EVM Schematic The schematic diagram is provided as a reference Downloaded from Elcodis com electronic components distributor ...

Page 18: ...SHDN 5 REF 1 GND 4 IN 2 IN 3 Vcc 8 DCLOCK 7 SDO 6 U1 3 4 1 5 2 U4 OPA353N R12 33 C6 10uF VIN 1 GND 3 OUT 2 U2 REF3025 C1 0 47uF 5Va R4 0 ohm R6 0 ohm C10 10uF VREF AD_IN AD_IN 5 3 U5 SN74LVC1G125 5 3 U6 SN74LVC1G125 TP3 TP1 TP5 TP7 TP4 TP6 R1 0 ohm C4 NI C2 NI C3 NI L1 15uF JMP1 V i o V i o V i o V adc JMP2 LVa V i o 5Vd 3 3Vd 1 2 3 4 5 6 7 8 JMP3 1 8Vd VD1 AGND DGND C13 NI 5 3 U3 SN74LVC1G125 R2 ...

Page 19: ...se read the User s Guide and specifically the Warnings and Restrictions notice in the User s Guide prior to handling the product This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application engineer or visit www ti com esh No license is granted under any patent right or ot...

Page 20: ...able for any such statements TI products are not authorized for use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury or death unless officers of the parties have executed an agreement specifically governing such use Buyers represent that they have all necessary expertise in the safety and regulatory ...

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