JAJSI51A May 2019 – January 2023 TAS5825P
PRODUCTION DATA
Following the digital clipper, the interpolated audio data is next sent to the Closed Loop Class-D amplifier, whose first stage is Digital to PWM Conversion (DPC) block. In this block, the stereo audio data is translated into two pairs of complimentary pulse width modulated (PWM) signals which are used to drive the outputs of the speaker amplifier. Feedback loops around the DPC make sure that the constant gain across supply voltages, reduce distortion, and increase immunity to power supply injected noise and distortion. The analog gain is also applied in the Class-D amplifier section of the device. The gain structures are discussed in detail below for both GUID-1C68C357-631F-4031-B9AB-56A1D2DF7B15.html#T4748585-6 and Table 9-2. The switching rate of the amplifier is configurable by register (Register Address 0x02h -D[6:4])