Datasheet

Test ADS5295

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• Connect Channel 1 of the ADS5295EVM to a signal generator through a band-pass filter (BPF). If no

BPF is present, the results are not good.

• The amplitude of the input signal is dependent on the insertion loss of the filter and cables used as

well as the desired backoff from full-scale. An iterative approach is used to determine the amplitude

setting required to operate at approximately -1.0 dBFS. In this test setup, the amplitude was set to

+18.4 dBm.

• Set the frequency of the signal generator to that shown in the ADC Input Target Frequency box

(1.00219727M).

• Change the window option to Hanning, due to the fact that input signal and onboard CMOS clock are

non-coherent.

• Pressing the Capture button returns the test result.

• Repeat for Channels 2 through 8.

Figure 17. Single Tone Capture

ADS5295, 8-Channel, Analog-to-Digital Converter Evaluation Module SLAU442–November 2012

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