Typical DVD player audio DA converter (CS4340)

Shown is a typical audio D/A converter (CS4340) for a DVD player . As can be seen from the figure, the digital audio signal, data clock and LR separation clock signals from the audio data processing circuit are sent to the Cang chip via the @~④ pins, and are digital-to- analog converted internally by the @ pins and @ pins respectively. Analog audio signals are output and then sent to the audio output circuit. Finally, the left and right channel audio signals drive the speakers to produce sound.