I think the problem with these is going to be placing the bypass caps close
enough to the chip, and also getting good low-impedance RF ground paths.
For just a little more money, you can buy an entire DDS board with all parts
from NJQRP.

Let us know how you make out.

Joe
W3JDR


"Ken Scharf" wrote in message
...
For those trying to solder those TSSOP and TQFP AD
chips into a circuit I found this site on the net

http://aprilog.com/perl/main.pl

They sell adaptors to solder the chip onto to plug
into standard dip sockets.

There are other types of breadboard circuit boards
for these chips as well. Search on google for
"TSSOP breadboard" or "TQFP breadboard".

Now that I see it might be possible I'm going to try
and make use of those 9954 and 9851 chips I got as
samples. The 9932 looks interresting too, with it's
low power. I also want to get a sample of the 9834,
now THAT's a low power chip, perfect for QRP.

Anybody have any 'war stories' about using these DDS
chips in a rig as a vfo?