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Contents

EVM Overview

1-1

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1.1

Analog Interface

1-2

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1.2

Digital Interface

1-2

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Power Supply Options

2-1

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EVM Operation

3-1

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ADS1202 Modular EVM BOM and Schematic

4-1

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4.1

ADS1202 Modular EVM BOM

4-2

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4.2

Schematic

4-3

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Tables

4 - 1.

Bill of Materials

4-2

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Содержание ADS1202

Страница 1: ...ADS1202 Modular EVM August 2003 Data Acquisition Digital Analog Converters User s Guide SLAU111 ...

Страница 2: ...titute a license from TI to use such products or services or a warranty or endorsement thereof Use of such information may require a license from a third party under the patents or other intellectual property of the third party or a license from TI under the patents or other intellectual property of TI Reproduction of information in TI data books or data sheets is permissible only if reproduction ...

Страница 3: ... 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 A...

Страница 4: ...f there is uncertainty as to the load specification please contact a TI field representative During normal operation some circuit components may have case temperatures greater than 23 C The EVM is designed to operate properly with certain components above 50 C as long as the input and output ranges are maintained These components include but are not limited to linear regulators switching transisto...

Страница 5: ...the following chapters Chapter 1 EVM Overview Chapter 2 Power Supply Options Chapter 3 EVM Operation Chapter 4 ADS1202 Modular EVM BOM 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 equipment This is an example of a wa...

Страница 6: ...ure Number ADS1202 SBAS275 User s Guide Literature Number 5 6K Interface Board EVM SLAU104 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 for compliance with the limits of computing devices pursuant to subpart J of part 15 of FCC rules which are designed to provide reasonable pro...

Страница 7: ...iew 1 1 1 1 Analog Interface 1 2 1 2 Digital Interface 1 2 2 Power Supply Options 2 1 3 EVM Operation 3 1 4 ADS1202 Modular EVM BOM and Schematic 4 1 4 1 ADS1202 Modular EVM BOM 4 2 4 2 Schematic 4 3 Tables 4 1 Bill of Materials 4 2 ...

Страница 8: ...vi ...

Страница 9: ...f applications The new 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 Direct modulator output Various isolation options Direct operation with a variety of DSK platforms from Texas Instruments Topic Page 1 1 Analog Interface 1 2 1 2 Digital Interface 1 2 C...

Страница 10: ... ground 1 2 Digital Interface The ADS1202 modular 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 combination provides access to the clock and data output pins of the ADS1202 Sigma Delta modulator Signal Description J2 1 Unused J2 ...

Страница 11: ... applications J4 provides power to isolation components including optocouplers or LVDS drivers For evaluation purposes TP3 and TP4 can be shorted together to provide a common power source across the isolation boundary Similarly TP2 and TP6 can be shorted together to provide a common ground When used as a stand alone EVM the ADS1202 power can be applied to J3 While filters are provided for all powe...

Страница 12: ...2 2 ...

Страница 13: ...pins 2 3 HCPL 2631 optocouplers close W3 pins 1 2 or transformer circuits such as those described in application note SLAA096 The operating mode of the ADS1202 can be controlled by placing shunt jumpers on W1 and W2 When the jumper is open not installed logic 1 is applied to the mode pins W1 controls M0 W2 controls M1 The EVM is configured with both W1 and W2 closed providing Mode 0 operation Jump...

Страница 14: ...o those in the following figure Slowly increase the time base of the oscilloscope As the time base increases the sine wave applied to the input terminals should begin to appear on the oscilloscope screen as shown below These screen shots were taken using a Tektronics digital oscilloscope model TDS 754D set for Hi Resolution mode ...

Страница 15: ...1 ADS1202 Modular EVM BOM and Schematic ADS1202 Modular EVM BOM and Schematic This chapter contains the bill of materials and the schematic Topic Page 4 1 Bill of Materials 4 2 4 2 Schematic 4 3 Chapter 4 ...

Страница 16: ...ide 10 Pin dual row SMT header 20 positive Samtec TSM 110 01 T DV P J1B J2B bottom side 10 Pin dual row SMT socket 20 positive Samtec SSW 110 22 F D VS K J3 J4 2 Terminal screw connector OST ED1514 J5 bottom side 4 Pin dual row TH header 8 positive Samtec SSW 105 22 F D VS K R1 R2 10 kΩ 0805 0 1 W resistor Yageo America 9C08052A1002JLHFT R3 R5 R10 R11 33 Ω 0805 5 0 1 W resistor Yageo America 9C080...

Страница 17: ...Schematic 4 3 ADS1202 Modular EVM BOM and Schematic 4 2 Schematic The schematic diagrams are shown on the following pages ...

Страница 18: ...TP2 1 2 3 4 5 6 7 8 9 10 J5 5Va 5Va Vd ADS1202 miniEVM Schematic A 1 1 B Tom Hendrick Tom Hendrick VIN 2 GND 5 VIN 3 Vdd 8 M1 4 M0 1 MDAT 6 MCLK 7 U1 ADS1202 W1 W2 R5 33 TP4 TP3 R10 33 R11 33 C8 1nF C9 1uF C10 1uF T2 T1 C11 0 C12 0 R12 TBD R13 TBD 3 7 8 5 6 2 Vcc 1 GND 4 U2 SN65LVDX34 C7 NI R8 TBD R9 TBD R6 TBD R7 TBD 3 7 Vdd2 8 GND2 5 6 2 Vdd1 1 GND1 4 U3 IL711 MCLK MDAT MDAT MCLK ISO_MDAT ISO_MC...

Страница 19: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments ADS1202EVM ...

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