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ADS4222EVM: Testing with TSW1400

Prodigy 20 points

Replies: 2

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Part Number: ADS4222EVM

Using the TSW1400 GUI I'm running the Test Procedure per the TSW1400 user manual.   The jumper configuration on the ADS4222EVM 

is per the user manual.  I'm using RF signal generators inputting a 50MHz sinewave clock (0dBm) and varying  single tone RF inputs frequency and Amplitude.    The result I'm getting on the GU is in general the correct output frequency but output signal level of around +1dBFS with very high spur content.. As I vary the sig gen power between 0 and -26 dBm the amplitude changes very little.  As I go lower in power the signal degrades.  Any ideas?

  • Guru 66700 points

    ADS4222EVM setup.pptxGene,

    Make sure to enable the digital functions in the GUI and set the data format to Offset Binary. See attached screen shot.

    Regards,

    Jim

  • Jim

    It works. Thanks

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