Thanks a lot
I'm working with an audio project, and I don't know how to get 24 bit resolution from the filter to the VDAC.
My issue that the vdac is 8 bit maximum and I need 24 bits.
You cannot get more than 8 bit D/A resolution out of a VDAC or a PSOC. The only
way that can be done is with a PWM followed by an integrator/LPF, and that will
not handle audio frequencies and has poor settling time.
Can I plays 4 vdacs in paralell or can I use current DACs with diffrent resistors?
How can I change the resoltion of filter output?
Changing filter resolution used will not solve the D/A resolution conversion performance.
However, if you absolutely had to change filter math resolution you could control how many
of the higher order bits you use from filter output, or use DFB assembler and create from
scratch the filter needed and the resolution of the math operated on.
Does someone knows what is the normal resolotion of audio?
If the class of product you are working on is hi fidelity audio, for music, then you
will need an external DAC. If it is for speech 8 bits is adequate for many applications.