[time-nuts] Frequency multiplication
magnus at rubidium.dyndns.org
Sat Feb 5 11:54:33 UTC 2011
On 05/02/11 12:13, jimlux wrote:
> And where in-situ changes in the signal processing are needed (e.g. in a
> software defined radio), the reprogrammable FPGA is a good fit. But
> there is a tradeoff.. you might want to give the downstream
> users/programmers the ability to change sample rates, prompting the idea
> of driving the data converter from the FPGA, without needing to add
> external components to provide that function.
The FPGA can be a part of that solution, with DDSes, programmable
dividers etc, but the actual clock should preferably not go through the
FPGA before hitting ADCs and DACs.
More information about the time-nuts