[time-nuts] FE 5680A "new version" - Filtering the 10 MHz

Chris Albertson albertson.chris at gmail.com
Tue Nov 15 20:02:24 EST 2011

On Tue, Nov 15, 2011 at 4:25 PM, beale <beale at bealecorner.com> wrote:
> Sylvain Munaut wrote:
>> It's not generated from a DDS. It's from a xilinx PLD,

I think the DDS is implemented inside the PLD.

Sying "that is not a DDS, it's a PLD, is like saying "That is not an
amplifier, it is a transistor."

In the description of how the device works in the data sheet they say
there is a DDS inside the programmable synthesizer.   It seems
reasonable that several functions are implemented inside the PLD and
this seems to be supported by the data sheet.

Chris Albertson
Redondo Beach, California

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