AV player chip, AV system, and related method utilizing a multiplexer for sharing digital-to-analog converters

摘要

An AV player chip includes a TV encoder, a timing controller, a multiplexer and a plurality of digital-to-analog converters. The TV encoder is used for transforming a first image signal into a TV video signal. The timing controller is used for generating an output signal. The multiplexer includes a first set of input ends coupled to the TV encoder, a second set of input ends coupled to the timing controller, a control end and a set of output ends. The multiplexer outputs the TV video signal or the output signal to the set of output ends according to a control signal received by the control end. The plurality of digital-to-analog converters are coupled to the set of output ends of the multiplexer for transforming the TV video signal into a first playing signal and for transforming the output signal into a second playing signal.