Texas Instruments AFE5809 Evaluation Module AFE5809EVM AFE5809EVM 데이터 시트

제품 코드

AFE5809EVM

TEST AFE5809

Figure 8. Ramp Waveform Output

8.2

Step 2: Single Tone FFT

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Select Frequency from the display control on the TSW1400 GUI to display the FFT.

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Connect Channel 1 of the AFE5809EVM to a signal generator through a BP filter. If a BP filter is not
present, the result is not good.

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Set the amplitude of the signal generator to -25 dBm.

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Set the frequency of the signal generator to the value in the "ADC Input Target Frequency" field of the
TSW GUI.

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Change the window option to Hanning if using the onboard clock. This is because the input signal and
the onboard CMOS clock are noncoherent.

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Press the Capture button to get the test result.

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Repeat for Channel 2 through Channel 8.

AFE5809EVM Evaluation Module

SLOU338A – October 2012 – Revised November 2012