Post Go back to editing

AD9642 hairy sinewave


I have problem with AD9642 digital outputs, the sinewave looks hairy (enclosed picture). I've no idea, what's the problem. The schematic is like evaluation board schematic. I try to shift the phase of DCO clock in FPGA, also I try to compose the bits in many different manners. But always shows the hair in sinewave. Do you have an idea? Clock ?, grounds ?, bit composing?




Parents Reply Children
No Data