Apparatus and method for processing analog and digital signals from multiple signal sources

A method for performing signal processing, comprising:

• receiving a first RF signal from a first signal source;
• generating a first IF signal corresponding to said first RF signal responsive to a first channel selection;
• generating a first demodulated signal and a first AGC signal corresponding to said first IF signal if said first channel selection is an analog channel selection;
• receiving a second RF signal from a second signal source;
• generating a second IF signal corresponding to said second RF signal responsive to a second channel selection;
• generating a second demodulated signal and a second AGC signal corresponding to said second IF signal if said second channel selection is an analog channel selection;
• generating a third demodulated signal and a third AGC signal corresponding to one of said first and second IF signals if one of said first and second channel selections is a digital channel selection
• selectively providing one of said first and third AGC signals for use in said generating a first IF signal;
• and
• selectively providing one of said second and third AGC signals for use in said generating a second IF signal.

A television signal receiver, comprising:

• a first tuner operative to generate a first IF signal corresponding to a first RF signal;
• a first analog demodulator operative to generate a first demodulated signal and a first AGC signal corresponding to said first IF signal;
• a second tuner operative to generate a second IF signal corresponding to a second RF signal;
• a second analog demodulator operative to generate a second demodulated signal and a second AGC signal corresponding to said second IF signal;
• a digital demodulator operative to generate a third demodulated signal and a third AGC signal corresponding to one of said first and second IF signals;
• a first RF AGC switch operative to selectively provide one of said first and third AGC signals to said first tuner;
• and
• a second RF AGC switch operative to selectively provide one of said second and third AGC signals to said second tuner.