I am just prototyping a board with the ADAU1701 and have some strange issues regarding audio not being the correct frequency, probably related to wrong sample rates somewhere.
The set up is as follows:
Crystal = 12.288Mhz
PLL= set for 64Fs
Program set to 2x length (96kHz operation)
Sigma DSP project blocks set to 96kHz
When I use the tone generator in SigmaDSP to send a 1kHz tone to the DACs, the measured output is at 250Hz. Obviously something is wrong and the fact that it is exactly 1/4 of the frequency seems like a setting is wrong somewhere.