Other Parts Discussed in Thread: PCM5102, PCM3070, PCM5102A, TLV320AIC3254,
My customer choosen PCM5142 for next project.
However, they hope to use miniDSP and also have flat responce 10Hz~40KHz +/-1dB.
Would please let us know the following soon?
I had attached file in order to cover my poor english.
Q1 904 cycles ( it may be same as another poset..)
Would you please let me know the meaning of miniDSP cycles= “904”?
Does that mean 904 cycles available for 44.1K/48KHz? Why its not 1024 cycles?
Q2 available cycles in case fs=192KHz
PCM5142 has just one framework : PCM5142App_1.
In case fs=192KHz, we can really use 256 cycles? (254 cycles is OK) Or 904/4=226 cycles?
Q3 DAC(Interpolation) filter for Frequency response
Can we achieve 10Hz ~ 40KHz +/-1dB even miniDSP Int2xOutROM , as my test resutls at PCM5102 FIR Normalx8/x4/x2/x1 ( see Photo 1) ?
Would you give me frequency response of Int2xOutROM ? In fact, in case my test results at PCM3070 DAC( Int2x Out1x) shows 1dB down at 20Hz
and its no good. ( see Photo 2)
So, I think it may be same even though PCM5142. In order to achieve 10Hz~40KHz flat like as PCM5102A FIR Normal,
we can not use miniDSP, because Normal FIR use x256 cycles ..??