The 9954 does have problems. It is reported to me that the 9958 has
solved these problems. I will know soon since I am going to give them a
head to head!
Bob
Lyle Johnson wrote:
Let me say that for the future AD9954 and AD9958 just look
spectacular. I have ordered the development boards for both of
them. Especially on the low bands, either of these would give spur
performance where the spurs are below the noise floor at all but sub
multiples of the clock. It is my understanding that the 9958 has
made spectacular strides in this "keeping the clock submultiples" off
the output.
I'll be interested in the real world performance of these DDS parts.
Early production versions were *not* as expected with this clock
frequency (400 MHz) and number of DAC bits.
Lyle
