[sdiy] Novation peak NCOs

[Eric Brombaugh]

Ideally you'd buffer the FPGA outputs through some external gate that's running from a clean and well decoupled analog supply. You're correct that taking the 1-bit signal direct from the FPGA to the analog processing will suffer from crosstalk and supply noise issues.

Eric

On Apr 23, 2017, at 9:29 AM, Olivier Gillet wrote:

> One thing I'm wondering though...
> 
> How good would a FPGA I/O pin work a 1-bit DAC? Isn't there, for
> example, a risk of cross-talk from adjacent pins?
> 
> Or is it just a matter of using a buffer (with good decoupling,
> possibly a separate power rail) to get a cleaner signal?
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