LA7567NM - TV and VCR VIF/SIF IF Signal-Processing Circuit
Pin No.
Pin Description Equivalent circuit 1 SIF INPUT * SIF input.
The input impedance is about 1 kΩ.
Since buzzing and buzz beating can occur if interference enters this input pin, care must be taken when design the pattern layout for this pin.
Note that the video and chrominance signa
Ordering number : EN5765 Monolithic Linear IC LA7567N, 7567NM TV and VCR VIF/SIF IF Signal-Processing Circuit with PAL/NTSC Multi-Format Audio Support Overview The LA7567N and LA7567NM are PAL/NTSC multiformat audio VIF/SIF IF ICs that adopt a semiadjustment-free system.
The VIF block adopts a technique that makes AFT adjustment unnecessary by adjusting the VCO, thus simplifying the adjustment steps in the manufacturing process.
PLL detection is adopted in the FM detector to support multi-for
LA7567NM Features
* Both AFT and SIF inductors built in, thus making adjustment of external inductance unnecessary.
* A PAL/NTSC multi-format audio system can be constructed easily.
* Built-in buzz canceller for excellent audio performance.
* VCC = 5 V, low power dissipation (250 mW)
