freq dds

[edrich]

HI
Iam looking for a schematic/ help to build a pic/ avr ddsthat can do up to about 40mhz.

it should output sinewave.

thanx

edd

 

[edrich]

one could use one of these chips.
thay seem to b able to handle that freq's

AD9954 -- 400 MSPS 14-Bit DAC 1.8 V CMOS Direct Digital Synthesizer
AD9953 -- 400 MSPS 14-Bit DAC 1.8 V CMOS Direct Digital Synthesizer
AD9952 -- 400 MSPS 14-Bit DAC 1.8 V CMOS Direct Digital Synthesizer
AD9951 -- 400 MSPS 14-Bit DAC 1.8 V CMOS Direct Digital Synthesizer
AD9859 -- 400 MSPS 10-Bit DAC 1.8 V CMOS Direct Digital Synthesizer

edd