[time-nuts] DDS on AD9852

d0ct0r time at patoka.org
Sat Jan 17 09:54:05 EST 2015


That Q1 is MAV1-0104 made by Mini-Circuits. This part is exact 
replacement for the MSA-0104, which was in TenTec kits early.
The schematic of that pre-amp is pretty simple:

                            +12 V
                          [ ] (470 Ohm)
                           L1 (100uH)
50ohm input ---||-- Q1 -----------------||-----50 Ohm output
              0.01                      0.01

> You are overdriving the amplifier. What is the part number of Q1? It
> looks like a MAR-xx something.
> The Tentek page does not have any good technical details on the amp
> that I could find. What info do you have?
> Regards



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