On Mon, Aug 1, 2016 at 3:59 PM, Jonathan Mizrahi <jmizr...@umd.edu> wrote: > I have one question, just out of curiosity: What is the motivation of > linking two "buddy" channels in the way you described, with the b and c > flags to turn these on and off? What application uses this feature?
A pair of buddy channels gives you all the features of two of those signal generators in an IQ signal stream (thus also twice the bandwidth and 3dB more SNR -- if I am not wrong). That means four tones with two full-bandwidth oscillators. The IQ stream is something that can be naturally fed into the DAC in question. Take a look at its block diagram in the datasheet. Only an IQ stream can be coarse modulated, shifted in frequency by the DAC's NCO, sinc-shaped, and easily fed to e.g. an analog IQ mixer to get you to another frequency window. I just didn't call that pair of buddy channels an "IQ pair" because when coupled, each channels's signal generators feed both I and Q. Robert. _______________________________________________ ARTIQ mailing list https://ssl.serverraum.org/lists/listinfo/artiq
