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.

Features

[VIF] • PLL detector • Buzz canceller

[SIF] • PLL detector • Audio switch

[VIDEO] • Built-in trap • Built-in DL

• Aperture control

• Video switch (SVO output)

• Black expansion

[CHROMA] • PAL/NT • Base band processing

(adjustment free)

• Built-in bandpass filter

[OSD] • Analog OSD

[DEF] • Automatic 50/60 Hz discrimination

• Fixed vertical size • Double AFC

• Built-in sync separator circuit

[Other features] • Sandcastle pulse (for the 1H delay line)

• fsc output (for SECAM systems)

• Primary color output