6.2.6.1.2 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 6-2. Type 1 Frequency Response
Figure 6-3. Type 2 Frequency Response
Figure 6-4. Type 3 Frequency Response