Thanks for the tip! On Fri, Feb 8, 2019, 20:54 Sylvain Munaut <[email protected]> wrote:
> Hi, > > I have managed to replace both buck DC-DC converters with AMS1117 3.3 & >> lm317 linear regulators and I successfully got rid of the mentioned 1 MHz >> buck converter clock to obtain as pure a signal as possible. Do not expect >> miracles as the DAC's are 8-bit and have a best case SNR of -48dB, but >> getting the sideband modulation out of the signal surely improves the >> resulting spectrum a lot. >> > > Well they might be 8 bits, but they're massively oversampled for HF, so > with good filtering and noise shaping, you can get more SNR. > > Cheers, > > Sylvain > >
