LA75520VA Overview
ENN 7960 LA75520VA Overview Monolithic Linear IC VIF / SIF Signal-Processing Circuit The LA75520VA is a pletely adjustment-free PAL VIF/SIF IC for TV sets and VCRs. It supports IF frequencies of 38, 38.9, and 39.5MHz. It integrates an automatic adjustment circuit for the VCO, an AFT circuit, and an audio carrier trap circuit on the same chip and requires the input of either a 4MHz or 4.43MHz reference signal.
LA75520VA Key Features
- Automatic adjustment VCO (no external VCO coil is required)
- Built-in audio carrier trap supports the B/G, I, D/K, and M/N audio systems
- Digital AFT adopted