Datasheet

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Basic Test Procedure

2.4 TSW1200 Quick Start Operation

For more detailed explanations please refer to the the TSW1200 User’s Guide for 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 6. The following configuration needs to be changed from the default

settings.

• Jumper setting on TSW1200 board

Set J11 (2-3) or High, J10 (1-2) or Low for LVDS DDR data input (default)

Set J11 (2-1) or Low, J10 (1-2) or Low for 1-wire serial data input

• Select ADS58C48 device name from the TI ADC Selection pull-down menu

– If this option is not available then download the latest 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 the desired channel (i.e. Channel A, B, C, or D) from the Channel Display pull-down menu

• Change ADC sampling rate to desired value (i.e., 200 MHz)

• Change input frequency to desired value (i.e., 149 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

Figure 6. TSW1200 GUI

2.5 ADS58C48 Test Procedure

• Switch on 6V power supply. Verify source current is about 470 mA +/- 20 mA with clock and TSW1200

connected at SNRBoost on for 4 channels.

• Connect clock signal at J7 through an appropriate BPF.

– Adjust the signal generator amplitude output to provide approximately 1 Vpp at J7.

– Use a high quality, low phase noise generator for this input to ensure proper device evaluation.

• Connect input signal through an appropriate BPF at either: J4, J6, J8 or J9 (Channel A, B, C or D).

– Adjust frequency of generator to match the coherent frequency displayed in the TSW1200 GUI.

– Select the proper Display Channel on the TSW1200 GUI software that corresponds to the input

connection.

– Adjust the signal generator amplitude output to achieve –1 dBFS.

SLAU313–May 2010 ADS58C48EVM