Overview
The LA75694M is a PAL/NTSC split Support VIF/SIF for Hi-Fi signal-processing IC that makes the minimum number of adjustments possible. The system is designed so that VCO adjustment makes AFT adjustment unnecessary, thus simplifying the adjustment steps in endproduct manufacturing. PLL detection is adopted in the FM detector, allowing the LA75694M to support multichannel detection for the audio signal. In addition, it also incorporates a buzz canceller that suppresses Nyquist buzz for improved audio quality.

Functions
• VIF Block: VIF Amplifier, Buzz Canceller, BNC, PLL Detector, IF AGC, RF AGC, AFT, Equalizer Amplifier
• 1st SIF Block: 1st SIF Amplifier, 1st SIF Detector, AGC
• SIF Block: HPF, MIX, 500kOSC