LA76938Y PDF – Video and Sound Processor IC

Part Number: LA76938Y

Function: Video and Sound Processor IC

Package: DIP 64S Type

Manufacturer: Sanyo Electric

Images:LA76938Y pdf sanyo


This is single-chip video and sound processor IC. The LA76938Y 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.

1. Video Processor ICs: Video processing ICs are responsible for tasks such as demodulating the incoming video signal, separating the color information, and generating the RGB (red, green, blue) signals required to display the image on the screen. Some popular video processor ICs used in color TVs include TDA series ICs from manufacturers like STMicroelectronics and various ICs from companies like Sony and Panasonic.

2. Sound Processor ICs: Sound processing ICs handle the audio signals in a color TV. They decode the audio signal, amplify it, and provide the necessary audio output to the TV’s speakers. Common ICs used for sound processing in TVs include those from manufacturers like NXP, ON Semiconductor, and Toshiba.

Functions :

• I2C bus control system with a built-in microcontroller

• VIF/SIF/Y/C/Deflection/CbCr IN

• Adjustment-free VIF/SIF

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

• No VCO coil required

• Internal sound carrier BPF, 4-system sound carrier trap

• Digital AFT system

• Supports EW (LA76933J, LA76938Y)

• Supports SECAM (LA76936Y, LA76938Y) […]

LA76938Y datasheet

LA76938Y PDF Datasheet

CXA20690 PDF Datasheet – Audio/Video Switch

Part Number: CXA20690, Correct Partnumber : CXA2069Q

Function: S2-Compatible 7-Input 3-Output Audio/Video Switch

Package: QFP 64 Pin Type

Manufacturer: Sony Corporation


CXA20690 datasheet



The CXA20690 is a 7-input, 3-output audio/video switch featuring I2C bus compatibility for TVs. This IC has input pins that are compatible with S2 protocol.

The device is a specific integrated circuit (IC) manufactured by Sony. It is a part of the CXA series of ICs, which are known for their use in various electronic applications, including audio and video processing.

This IC is a stereo audio power amplifier IC that is designed to provide amplification for audio signals. It is often used in consumer electronics devices such as audio systems, radios, and portable music players.


CXA20690 pinout



1. 4 inputs that are compatible with S2 protocol

2. Serial control with I2C bus

3. 7 inputs, 3 outputs

4. The desired inputs can be selected independently for each of the 3 outputs

5. Wide band video amplifier (20 MHz, –3 dB)

6. Y/C MIX circuit

7. Slave address can be changed (90H/92H)

8. Audio muting from external pin

9. High impedance maintained by I2C bus lines (SDA, SCL) even when power is OFF

10. Wide audio dynamic range (3 Vrms typ.)

CXA20690 pdf


1. Audio/video switch featuring I2C bus compatibility for TVs


1. Bipolar silicon monolithic IC


CXA20690 PDF Datasheet