TAS2563 also supports 2 pcs PDM MIC recording and has 2 simple digital gains on the input signals.

The Maxim gain range is 30 dB (see Figure 2-32).

If you need this PDM MIC feature, you need a special version PPC3 Tool to support this feature.

Figure 2-32 PDM Controls

The System Block Diagram is like Figure 2-33.The Host Provide BCLK,WCLK,DIN to TAS2563 while TAS2563 transmit the PDM1 data,PDM2 data and Echo Reference to Host.

Figure 2-33 Smart Amp Tuning

Figure 2-34 shows the speaker audio signal chain through the TAS2563 if you use PDM Mic version PPC3.

There are 3 bands EQ in the signal chain.

Figure 2-34 Speaker Audio Signal Chain