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TAS5707: Biquad configuration over I2C

Part Number: TAS5707

Hi,

I am using TAS5707 for development of a product. I do have confusion on the 3.23 format to be sent over i2c.

1) Can you please show with example how to convert lets say

  a) any positive coefficient

  b)any negative coefficient

to 3.23 format and then to i2c. The datasheet explanation is not helping. A worked out example of any of the biquad coefficients would help.
2) Can you please provide simple formulas to implement biquads (programmatically in C), given Fs, Q and gain that makes programming easier?

Thanks and Regards,
Goldy