Folded Harmonics

Folded Harmonics

Question

We are seeing folded harmonics in our tests, can you help.

Answer

Folded 2nd harmonics are common and should be expected. The level varies basedon several things like DAC clock balance and DAC output balance. It is affectedby output balun balance, and it varies from board to board. If the PCBt has poorer balance than the board used in our quick start guide you will seeworse performance.