LA75691 Overview
EN5734 Monolithic Linear IC LA75691 IF Signal-Processing IC for PAL/NTSC Multichannel Audio TV and VCR Systems Overview The LA75691 is a PAL/NTSC multichannel audio VIF/SIF 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...
LA75691 Key Features
- Excellent buzz and buzz/beating characteristics provided by a PLL detection technique that includes a buzz canceller
- No coils are used in the AFT and SIF circuits, making them adjustment free