LA7688 Datasheet (Sanyo) - Single-Chip CTV Signal-Processing Circuit

LA7688, Single-Chip CTV Signal-Processing Circuit

Ordering number : EN5635 Monolithic Linear IC LA7688 Single-Chip CTV Signal-Processing Circuit for PAL and NTSC Formats Overview The LA7688 integrates VIF, SIF, video, chrominance, and deflection processing circuits for PAL/NTSC format TV sets on a single chip and is provided in a 52-pin shrink package.

The VIF and SIF circuits achieve semi-adjustment-free operation, and are adjustment-free except for the VCO coil and the RF AGC circuit.

The chrominance circuit can be made adjustment-free by

LA7688 Features

* Sandcastle pulse (for the 1H delay line)

* fsc output (for SECAM systems)

* Primary color output Package Dimensions unit: mm 3218-DIP52S [LA7688] Features [VIF] [SIF] [VIDEO]

* PLL detector

* Buzz canceller

* PLL detector

* Audio switch