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LA76931 Datasheet PDF – 64Pin IC for Color TV Receiver

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This is one of the TV Receiver types.

Part Number: LA76931

Function: Color Television Receiver / SERVICE MANUAL

Package: DIP 64Pin

Manufacturer: Sanyo, SUSOC

See the preview image and the PDF file for more information.

Image :
LA76931 image datasheet

Description

The LA7693X series is a single-chip video and sound processor IC with a built-in microcontroller that supports all of the different worldwide broadcasting systems. The IC provides fully integrated solution to rationalize the design of color TV sets, increase productivity, and reduce total costs.

Features

  • Integrated video, audio, and microcontroller functions
  • Supports worldwide TV broadcasting systems (PAL, NTSC, SECAM)
  • Reduced external component count for simplified design
  • Built-in on-screen display (OSD) control capability
  • Integrated synchronization and deflection signal processing
  • Low power consumption with standby control support
  • Improved system reliability and manufacturing efficiency

Functions

1. I2C bus control system with a built-in microcontroller

2. VIF/SIF/Y/C/Deflection/CbCr IN

3. Adjustment-free VIF/SIF

4. 1X’tal multi-system that supports all broadcasting systems

5. No VCO coil required

6. Internal sound carrier BPF, 4-system sound carrier trap

7. Digital AFT system

8. Supports EW (LA76933J, LA76938Y)

9. Supports SECAM (LA76936Y, LA76938Y)

Model: CTV-2639, CTV-2640 / Color Television Receiver Model: -SZ2（MONO） series

 

LA76931 Pinout ( Block Diagram ) 

LA76931 Datasheet Pinout Sanyo

Typical Circuit Usage

  • Main signal processing IC in CRT television systems
  • Integration with tuner, IF stages, and audio amplifier IC
  • Control of display functions including brightness, contrast, and color
  • System control via built-in microcontroller and remote interface
  • Interface with deflection and synchronization circuits

How to Choose This Part

  • Select for CRT TV designs requiring full integration of video and audio processing
  • Suitable for multi-standard broadcast compatibility
  • Ideal for cost-sensitive designs needing reduced component count
  • Consider compatibility with existing tuner and display architecture
  • Ensure proper SMPS design to meet system voltage requirements

Applications

  • CRT color televisions
  • Analog TV receiver systems
  • Integrated TV chassis designs
  • Consumer video display equipment
  • Legacy broadcast reception systems

Alternative / Equivalent Products

  • LA76930
  • LA76932
  • TDA9381
  • TDA9351
  • CXA1213

Other data sheets are available within the file: LA769317N

LA76931 Datasheet PDF Download

LA76931 pdf

Similar features and reference parts

LA76931J Datasheet


LA76931K Datasheet

8873CSCNG6PR6 Datasheet PDF – Processor for TV – Toshiba

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Part Number: 8873CSCNG6PR6

Function: Latest TV co-developed two special decoder core

Package: DIP 64 Type

Manufacturer: Toshiba

Image :
8873CSCNG6PR6 Image

Description

TMPA8873CSCNG6PR6, 8873CSCNG6PR6 is a newly developed 2-in-1 color TV special decoding chip from Toshiba Corporation of Japan. It can be applied to 14″~29″ movements and has a variety of functions to expand from simple to high-end full range of machines on a single PCB motherboard. core. This IC serves as the central control and signal-processing unit in analog TV systems, handling video decoding, synchronization, user control, and system management.

Key Architecture

  • Integrated Video Processor + Microcontroller (MCU)
  • Embedded 8-bit CPU core
  • On-chip memory (ROM + RAM)
  • Multi-standard TV signal decoding capability
  • Designed for single-board TV solutions

Features

1. High-speed 8 bits CPU.

2. 8MHZ crystal, minimum instruction cycle is 0.5μs.

3. 2-KRAM, 48K ROM.

4. 12 I / O port

5. The special remote control, count register.

6. 16 interrupt sources, five external interrupts, 11 internal interrupts.

7. There are two ways to detect the sync signal, the internal register and the external pulse count.

Pinout and Block Diagrams

8873CSCNG6PR6 DatasheetTV Decoding

1. Built-in notch filter, bandpass filter, PIF VCO circuit.
2. Black level extension, brightness gamma correction function.
3. PAL/NTSC decoding circuit.
4. Two-channel audio input port, two-channel volume control output port, and one channel audio output port. Body sound control.

Design Insights (Important)

  • Crystal accuracy (8MHz) is critical for timing stability
  • Interrupt handling must be carefully configured in firmware
  • Proper grounding and separation of analog/digital sections required
  • Sync signal integrity directly affects picture stability
  • ROM is fixed → firmware customization is limited to specific variants

Applications

  • CRT televisions (14″ to 29″)
  • Analog TV receiver systems
  • Low-cost integrated TV mainboards
  • Consumer video display systems

Advantages

  • High integration reduces BOM cost
  • Single-chip TV solution
  • Flexible for multiple TV models (low-end to high-end)
  • Reliable and mature architecture

Related / Comparable ICs

  • LA76931 (video/sound processor series)
  • TDA9381 (Philips/NXP TV processor)
  • OM8370 series
  • Other Toshiba TMPA88xx family devices

Other data sheets are available within the file: TMPA8873CSCNG6PR6

8873CSCNG6PR6 Datasheet PDF

8873CSCNG6PR6 pdf