Texas Instruments ADS42 EVM Series, Руководство пользователя

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Basic Test Procedure
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Table 1. Default ADS58C28/42xx EVM Rev B Jumper Setting for Serial
Interface
(1)
(continued)
Jumper Default position Function
JP5 Short 1 2 ADC CTRL3, normal operation
JP6 Short 1 2 ADC CTRL2, normal operation
JP7 Short 1 2 ADC CTRL1, normal operation
JP 18 Short 1 2 Ext Buffer
JP 23 Short 1 2 Ext Buffer
JP 24 Short 1 2 Ext Buffer
JP 25 Short 1 2 Ext Buffer
Table 2. Parallel interface with pin control of ADS58C28/42xx EVM Rev B
Jumper setting
Jumper Position Function
JP8 Short 1 2 ADC SCLK for parallel control
JP9 Short 1 2 ADC SDATA for parallel control
JP10 Short 1 2 ADC SEN for parallel control
JP11 Short 1 2 ADC parallel control
2.3 Test Set-up connections
• Connect ADS42xx/ADS58C28 EVM to TSW1200 EVM
• Connect 5V power to banana jack at J10; connect ground to J12
• Connect USB cable to programming computer at J17
• Connect USB and power supply jack to TSW1200
• Connect Clock signal through appropriate BPF to J19
• Connect input signal through appropriate BPF to J6, J3
2.4 TSW1200 Quick start Operation
See the TSW1200 User’s Guide ( SLAU212 ) for more detailed explanation of the TSW1200 set-up and
operation. This document assumes the TSW1200 software is installed and functioning properly. The front
panel of the TSW1200 is shown in
Figure 4 . The following configuration needs to be changed from the
default settings.
• Jumper setting on TSW1200 board
– Set J11 (2-3) High, J10 (1-2) Low for LVDS DDR data input (default)
– Set J11 (2-1) Low, J10 (1-2) Low for 1-wire serial data input
• Select ADS42xx device name from the TI ADC Selection pull-down menu
– If this option is not available then download the latest ADS42xx.ini file from the product folder of the
TSW1200 at
www.ti.com
– Place updated *.ini files in the TSW1200 product directory located at C:\Program Files\Texas
Instruments\TSW1200\ADC Files
• Select Single Tone FFT from the Test pull-down menu
• Select Data Capture Option>Capture Options>Two’s Complement Mode to set data format
• Select the desired channel (i.e., Channel A or B) from the Channel Display pull-down menu
• Change ADC sampling rate to desired value (i.e., 250 MHz or other)
• Change input frequency to desired value (i.e. 170 MHz or other)
• Press Ctrl-Shift-I to reset the software as needed
• Verify status display in lower left has no errors
• Press Capture button to initiate a data capture
6 ADS42xx EVM SLAU333 – March 2011
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