IF PROCESSING CIRCUIT FOR TV RECEIVER

The IF signal processor has higher sensitivity and broad automatic gain control range. The IF signal processor includes an IF signal amplifier(100) for amplifying an input IF signal in a preset range, a filter(200) for filtering output signal of the IF signal amplifier(200), a video signal amplifier(300) for amplifying video signal output from the filter(200), a first automatic gain controller(400) for controlling amplification gain of the IF signal amplifier(100), and a second automatic gain controller(500) for controlling the video signal amplifier according the level of the synchronous signal.