There is provided a combined TV and FM radio receiver for selectively
receiving TV and FM radio signals via a single tuner using a digital
intermediate frequency (IF) stage. The receiver includes a tuner that
selects TV band or FM radio band signals and converts the selected
signals into IF signals or primary sound IF signals; an IF processor that
generates local oscillating signals depending on whether a current mode
is a TV mode or an FM radio mode, and converts the IF signals and/or
primary sound IF signals, into baseband signals and secondary sound IF
signals, respectively; a video demodulator that extracts video signals;
an audio demodulator that extracts TV audio signals and FM radio signals
according to TV sound or FM radio mode data; and a controller that
controls the tuner, and the IF processor, and applies the TV sound or FM
radio mode data to the audio demodulator.