46.6.1.2 CLASSD Frequency Response

Interpolation is performed with a combination of Infinite Impulse Response (IIR) and Cascaded Integrator-Comb (CIC) filters. Given the input configuration, the coefficients of the filters are redefined to optimize their transfer function to optimize the audio bandwidth. The different types of filters are defined in section Clock Configuration.

Figure 46-2. Type 1 Frequency Response
Figure 46-3. Type 2 Frequency Response
Figure 46-4. Type 3 Frequency Response