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AFE7953: TX channels are not working

Part Number: AFE7953
Other Parts Discussed in Thread: AFE7950EVM

Hi Team,

we are using AFE7953 in our design. we observed that the RX channels are working and TX channels are not working.

we are using TX1 and TX3 (F20-G20,W20-V20). the TX NC ports are shorted to VOUT_1V8 in our design.

after programming the AFE the RX channels are working fine(we have given CW from external source and saw at JESD output).

we tried sending constant value in jesd(dacJesdConstantTestPatternValue), the TX output is not coming.

we tried changing DSA attenuation values, we observed that the current is varying accordingly and the TX output noise floor is also changing accordingly, but TX waveform is not visible.

can you please help us debugging this problem?

the AFE7953 preliminary data shows different block diagram about TX channel numbers in section2 and Section8.2.

please let us know which is correct?

Thanks,

Obul