Texas Instruments PGA112EVM User Manual Download Page 14 | Manualshive

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EVM Documentation

6.2

EVM Schematic

shows the schematic for the PGA112EVM. Note that the PGA113 schematic is identical except for the device name.

Figure 16. EVM Schematic

14

PGA112EVM and PGA113EVM User’s Guide

SBOU073A – February 2009 – Revised May 2012

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Copyright © 2009–2012, Texas Instruments Incorporated

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Summary of Contents for PGA112EVM

Page 1: ...gures 1 Hardware Setup 3 2 EVM Block Diagram 3 3 SM USB DIG Platform Block Diagram 4 4 Typical EVM Hardware Connections 5 5 Confirmation of SM USB DIG Platform Driver Installation 5 6 PGA112EVM Hardware Note that the PGA113EVM is identical except for the device name 6 7 EVM Installer Files 7 8 Install Path 8 9 EVM Software Interface 9 10 Communication Error with SM USB DIG Platform 10 11 Read Writ...

Page 2: ...nnector Ribbon Cable 1 User s Guide CD ROM 1 1 2 Related Documentation from Texas Instruments The following document provides information regarding Texas Instruments integrated circuits used in the assembly of the PGA112EVM and PGA113EVM This user s guide is available from the TI web site under literature number SBOU073 Any letter appended to the literature number corresponds to the document revis...

Page 3: ...m of the test board hardware setup is shown in Figure 2 The EVM board provides test points to the communication inputs The EVM board also provides power and ground connections from the SM USB DIG Platform board or an external power supply see Section 3 4 The EVM board also provides test points for the analog inputs and output of the PGA112 or PGA113 device The PGA112EVM and PGA113EVM feature a tes...

Page 4: ...Z 7 SPI_CLK SPI clock signal SCLK 8 GND Power return GND 9 SPI_CS1 SPI chip select signal CS 10 SPI_DIN1 SPI data input MISO 2 3 Theory of Operation for SM USB DIG Platform Figure 3 shows the block diagram for the SM USB DIG Platform This platform is a general purpose data acquisition system that is used on several different Texas Instruments evaluation modules The details of its operation are inc...

Page 5: ...10 pin connectors together as shown in Figure 4 Make sure that the two connectors are completely pushed together loose connections may cause intermittent operation Figure 4 Typical EVM Hardware Connections 3 3 Connecting the USB Cable to the SM DIG Platform Figure 5 shows the typical response when connecting the SM USB DIG Platform board to a PC USB port for the first time Typically the computer r...

Page 6: ...e test points CS DIO and CLK for monitoring communication between the SM USB DIG Platform and the PGA112 or PGA113 device as shown in Figure 6 The test points allow external signals to be connected if the EVM is integrated into a custom application or prototype Note that if the SM USB DIG Platofrm is not being used an external power source must be connected to DVDD and AVDD Figure 6 PGA112EVM Hard...

Page 7: ...ith the EVM kit It is also available through the PGA112EVM or PGA113EVM product folder on the TI web site To install the software to your system insert the disc into an available CD ROM drive and navigate to the drive contents Locate the compressed file PGA112 113EVM Software open it find the setup exe file as shown in Figure 7 and run it to start the installation The PGA112 113EVM software instal...

Page 8: ...s step two license agreements are presented that must be accepted After accepting the Texas Instruments and National Instruments license agreements the progress bar opens and shows the installation of the software After the installation process is completed click Finish Figure 8 Install Path 8 PGA112EVM and PGA113EVM User s Guide SBOU073A February 2009 Revised May 2012 Submit Documentation Feedbac...

Page 9: ... Windows From the Start menu select All Programs and then select the PGA112 113EVM program Figure 9 illustrates how the software should appear at launch if the PGA112EVM or PGA113EVM is functioning properly Figure 9 EVM Software Interface 9 SBOU073A February 2009 Revised May 2012 PGA112EVM and PGA113EVM User s Guide Submit Documentation Feedback Copyright 2009 2012 Texas Instruments Incorporated ...

Page 10: ...ield is used to select the correct device as shown in Figure 11 This setting is automatically saved Figure 11 Read Write and Auto Write Buttons 5 2 2 Reading and Writing to Registers The EVM software only reads and writes to the PGA112 or PGA113 registers at the user s command This is accomplished with the Read All Reg and Write All Reg buttons as shown in Figure 11 When any change is made to the ...

Page 11: ...register Figure 12 Individual Bits Panel and Help w Reg Button 5 2 4 Setting DVDD and AVDD The SM USB DIG Platform supports two logic level voltages 3 3 V and 5 V Set the voltage by using the Vdut Voltage menu as shown in Figure 13 Disable the voltage from the SM USB DIG Platform by toggling the Power button Figure 13 Setting DVDD Voltage 11 SBOU073A February 2009 Revised May 2012 PGA112EVM and PG...

Page 12: ... and CH1 can be selected in this menu as well as the various calibration inputs Figure 14 Input Mux Configuration 5 2 6 Setting Gain Use the Gain drop down menu shown in Figure 15 to configure the PGA112 or PGA113 device gain value Figure 15 Setting the Gain 12 PGA112EVM and PGA113EVM User s Guide SBOU073A February 2009 Revised May 2012 Submit Documentation Feedback Copyright 2009 2012 Texas Instr...

Page 13: ...20 001000 2 N A 1 2 BUMPON CYLINDRICAL 375X 135 BLK 3M SJ61A8 AVDD CH1 VCAL CH0 11 N A CLK CS DIO DVDD TEST POINT MINIATURE Keystone Electronics 5015 VOUT VREF GND x2 3 0 1 µF C1 C2 C3 CAPACITOR CER 1UF 16V 0402 Murata Electronics North America GRM155R71C104KA88D 2 0 Ω R1 R2 RESISTOR 0Ω 0402 Yageo RC0402JR 070RL 3 10 kΩ R3 R4 R5 RESISTOR 10KΩ 0402 1 16W 5 Yageo RC0402JR 0710KL 1 N A FB1 FERRITE BE...

Page 14: ...ic for the PGA112EVM Note that the PGA113 schematic is identical except for the device name Figure 16 EVM Schematic 14 PGA112EVM and PGA113EVM User s Guide SBOU073A February 2009 Revised May 2012 Submit Documentation Feedback Copyright 2009 2012 Texas Instruments Incorporated ...

Page 15: ...s for the PGA112EVM board Note that the PGA113EVM layout is identical except for the device name Figure 17 PCB Component Layout 15 SBOU073A February 2009 Revised May 2012 PGA112EVM and PGA113EVM User s Guide Submit Documentation Feedback Copyright 2009 2012 Texas Instruments Incorporated ...

Page 16: ...emperatures 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 other intellectual property right of TI covering or relating to any machine process or combination in which such TI products or services might be or are used FCC Warning This evaluation bo...

Page 17: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments PGA113EVM B PGA112EVM B ...

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