Part Number: TAS5754M
Other Parts Discussed in Thread: TAS5782M
Hi Team,
We are using HybridFlow 1 of the TAS5754M and are playing with the biquad. (with a TAS5754M EVM)
We created 8 different instances and each of them has different Fc and a Q value of 1.
We enabled one instance at a time and recorded the sweep waveform.
Here's when we disabled everything in the audio processing block to see the frequency response of the device, which seems pretty flat.
Here's when we enable the biquad one instance at a time with 12-dB gain:
Here's when we enable the biquad one instance at a time with -12-dB gain:
As you can see in the second plot, the gain decreases as Fc increases. However, this did not happen when the gain was set at -12dB.
What's the reason behind this and is there anything we can do to achieve a consistent gain?
Here's our PPC2 file: MyTAS5754_6MHF1_NHF_0919.xml
Thanks!
Roy Hsu
