Nicely done Terry. I'll certainly take a couple once you get to production. Bill VK7MX

Updated pics with the 3.3v reg underneath the Xtal osc. I have moved some things around to shorten the length of tracks between IC output, transformer and pin at the edge of the pcb. Will leave this

I've seen at least three different options for using 3.3v oscillator modules on 5V boards, namely: a couple of series diodes a 47 ohm resistor a proper 3.3v regulator. The first two options work,

Hi all, Three things: One is that if the distortion introduced by an AD8008 output stage can not be tolerated the perhaps the AD985x device is not a good enough starting point. (Search the files

Terry, Your pcb looks awfully good! Especially that You have included an output transformer whcih is already suggested in an Analog Devices app note. For the 125 Mhz osc: I think there is still some

I think you'll be hard pressed finding a TCXO that runs on 5V. -Steve K1RF

I think if the oscillator module has to be replaced, it should be replaced with a TCXO. It is surprising how much change in frequency there is with just a light draft across the oscillator, even just

Looks good. I like the coilcraft transformer on-board as I have used one myself (Coilcraft WB1-6TSLB) and it allows good wideband performance and adequate output power for me with a lowpass filter and

Here is a preliminary 3 pics of the pcb, combined top and bottom layers, top only and bottom only. Nothing is set in concrete, so changes can be made. The other style module version could also be

Type 1 or 2? I have one (single row of pins each side) without the filter components on board 3/4 done which I mentioned in an email to Jim a little while ago. Give me a day or so and I will post it

The DDS60 is a totally different footprint than the AD9850 modules and will not work for my application. Thank you. Jim Pruitt WA7DUY

There is a problem with this board, it is used in another version of the PHSNA (DDS-60 and Arduino Nano) so you will need the main board for it. Regards, Ignacio, EB4APL

Maybe you can buy an unpopulated DDS-60 Daughtercard board from Midnight Design Solutions here: https://midnightdesignsolutions.com/dds60/index.html The DDS board is described here

I have several AD9850 samples.  I wonder if anyone knows where I can find the gerbers for the module pc boards themselves?  I would prefer to make my own and use my existing stash of chips rather

Clifford, Oh.! That looks like a good deal. I still need a low phase noise LO for my Picastar project.. humm. 73, Gary Wb6ogd

Thanks for aid and encouragement, from multiple continents. I got a handle on shopping now. Great to discuss, learn or be reminded. Exciting third, fifth, etc harmonics not a good thing for filter

That version is unbalanced, like the one I bought. Clifford Heath.

Well as a matter of fact you can get them on ebay cheap(relatively). Item 183406561654. But you better hurry, there's only one left ;-) Mike K5ESS

I bought this: <https://www.aliexpress.com/item/Four-way-orthogonal-signal-generator-DDS-AD9959-core-board-200MHZ-AD9854/32713419146.html>, but I recommend you spend $20 more and get one with

Uh Clifford, The eval board for AD9959 is $430 at Digikey..  Can you get those on ebay  for cheap? Si5351 board is about $7. You might as well go buy a used HP or something, no? I think I have