I am using the ADAU1777 for my project and want to use the DSP to implement 4 low pass filters, but I cannot find the specifications for the DSP instructions. I tried to model it with Sigma Studio (4.5 rev 1779), but the serial data inputs and outputs are not available in Sigma Studio.
So I have the following questions:
- the DSP core has 4 input and 4 outputs, can I use them as 4 separate filters?
- how many biquad sections can I use per filter, when when sample frequency for input decimator, core and DAC is 96 kHz?
- where can I find the specifications for the instructions?
- I am free to choose core sample frequency?
Ad van de Voort