National Semiconductor ADS42B4 Series, Руководство пользователя

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Basic Test Procedure
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2.5 ADS42B4x Test Procedure
• Switch on the 5-V power supply for the EVM.
• Connect clock signal at J19 through an appropriate bandpass filter.
– Set the signal generator to 10 dBm and 250 MHz.
– Use a high-quality, low phase-noise generator for this input to ensure proper device evaluation.
– A tight bandpass filter is required to achieve optimal performance.
• Connect the input signal through an appropriate bandpass filter at either J6 or J3 (Channel A or B).
– Adjust the frequency of the generator to match the coherent frequency displayed in HSDCPro.
– Select the proper Display Channel in HSDCPro, corresponding to the input connection.
– Use a high-quality, low phase-noise generator for this input to ensure proper device evaluation.
– A tight bandpass filter is required to achieve optimal performance.
• Open the ADS42B4x GUI by going to the Start Menu and finding ADS42B4x GUI in the Texas
Instruments folder.
– Press the Reset button.
– Press the Data Format button to choose "Offset Bin"
– Turn on HP[1:11] to enable the high performance modes.
– Click Send All , see Figure 5 .
• Initiate a capture by pressing the Capture button in HSDCPro.
Figure 5. ADS42Bxx GUI
8 ADS42B4x EVM SLAU477A – December 2012 – Revised January 2015
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