3 Audio

The input and output audio signals have different stages and each stage is programmed to vary the gain response characteristics. For microphones, both single-ended inputs and differential inputs are supported. To maintain a high-quality signal, provide a stable bias voltage source to the condenser microphone’s FET. Use the DC-blocking capacitors at both positive and negative sides of the input. Internally, this analog signal is converted to 16-bit, 8 kHz linear PCM data.