Hello,
The AD9851 is available by mailorder here in Turkey,
The si570 and si5351 are not, however, here the AD9851 costs AM$ 42 each.
Regards Ben (in Turkije)
-------- Origineel bericht --------
Van:Computer Burgas <secvritas1@xxxxxxxxx>
Verzonden:Mon, 25 Jul 2016 11:19:50 +0300
Aan:minima@xxxxxxxxxxxxx
Onderwerp:[minima] for minima project
In old minima project, after series of tests I found that Si570 has too many
harmonics and frequency counter reported me them rather than the fundamental
frequency, which means that the mixer and quartz filter probably being down
work properly. Also the cost of Si570 in ebay is 2-3 times higher than , for
example - AD9851. Moreover BFO also realized unstable frequency. I decided to
work towards replacing VFO and BFO with the 2 pcs of AD9851 DDS generators. So
with this I will get freq accuracy and easy programmability of LSB and USB in
BFO and VFO.