Digital television receiver module and digital television receiver using the same

摘要

A DTV module includes a CPU, a decoder, and a CA interface circuit. The decoder executes a decoding processing on a digital television signal inputted from a demodulator provided on a motherboard, so as to decode the digital television signal into a video signal and an audio signal, and outputs the video signal and audio signal. The CA interface circuit is connected to a CA module via a PC card socket, and executes input and output processings on signals communicated among the demodulator, CA module, decoder, and CPU. The CPU controls the CA interface circuit by switching types of the signals, so that a selected type of signal conforms to a type of the CA module, in response to a broadcasting system of a digital television signal or the type of the connected CA module.