DIGITAL TELEVISION RECEIVER MODULE AND DIGITAL TELEVISION RECEIVER USING THE SAME

A DTV module (1) includes a CPU (19), a decoder (2), and a CA interface circuit (3). The decoder (2) decodes a digital television signal inputted from a demodulator (12) arranged in a mother board (101), converts it into a video signal and an audio signal, and outputs them. The CA interface circuit (3) is connected to a CA module (14) via a PC card socket (13) and executes input and output of signals communicated between the demodulator (12), the CA module (14), the decoder (18), and the CPU (19). The CPU (19) controls the CA interface circuit (3) by switching the signal types so as to be appropriate for the type of the CA module (14) in accordance with the type of the broadcast method of the digital television signal or the CA module (14).