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The output code is overlaid with a ZigZag

Thread Summary

The user observed a 100 kHz sine signal output from the AD9220 being overlaid with a ZigZag pattern corresponding to the 10 MHz clock. The issue was resolved by correcting the byte order in the FPGA, which was incorrectly set to 1, 0, 3, 2,....
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Category: Hardware
Product Number: AD9220

The output code of a 100 kHz sine signal is overlaid with a ZigZag that exactly corresponds to the clock (10 MHz).

A general understanding question:

What could be happening inside the AD9220 that would cause it to output such a code even though the signal at the input is clean?