Part Number: LA7674
Function: Color TV singl-chip signal processor for NTSC systems (PLL detection)
Package: DIP 52 Pin Type
Manufacturer: SANYO (Panasonic)
Pinouts:
Description
The LA7674 improves upon the black-level, horizontaljitter, switch-on drift performance of the single-chip LA7672 used to date. Also a single-chip IC, the device is for color TVs based on the NTSC (National Television System Committee) system with an on-chip circuit for all VIF, SIF, video, chroma and deflection signal processing.
A Color TV Single-Chip Signal Processor is an integrated circuit that processes video and audio signals for color televisions. It is a specialized microprocessor that receives input signals from various sources such as cable, satellite, or broadcast television, and processes them to produce a high-quality image and sound.
Functions and Features
[VIF]
1. PLL detection (high video and audio quality)
2. High-gain VIF amplifier
3. High speed AGC
4. On-chip APC time constant switch
[SIF]
1. Simultaneous sound IN/OUT
2. Video/audio simultaneous muting, or audio-only muting possible
[Deflection]
1. Adjustment-free horizontal, vertical synchronization
2. Dual AFC system with excellent anti-noise characteristics
3. External adjustment of vertical synchronization sensitivity
4. Vertical size is constant with no-signal
Block Diagram:
Other data sheets are available within the file: LA7672
LA7674 Datasheet PDF Download
