NS4358 PDF – Sound Digital Audio Amplifier

This post explains for the Digital Audio Amplifier.

The Part Number is NS4358.

The function of this IC is 2.1-channel Surround Sound Digital Audio Amplifier.

The package is TQFN4×4-28, SOP-28.

Manufacturer: Nsiway

Preview images :NS4358 datasheet


NS4358 is an ultra low EMI, no filter, 5W + 3W × 2 high efficiency 2.1 channel + 3D surround stereo Class D audio Power amplifier. The NS4358 utilizes advanced technology to significantly reduce EMI interference over a full bandwidth range, minimizing damage to other components influences. Its output without the need for filter PWM modulation structure and feedback resistor built-in way to reduce the external components, the 2.1 channel function, 3D ring The surround sound function and bandpass filter are integrated on a single chip with minimal external components, the largest savings in PCB area and system cost.

NS4358 built-in overcurrent protection, overheating protection and undervoltage protection, effectively protect the chip in the abnormal working conditions are not damaged. and the use of spread spectrum technology to fully optimize the new circuit design, up to 90% more efficient for low voltage, high power output audio system.[…]

NS4358 pinout amplifier

NS4358 PDF Datasheet

LA76931J Datasheet PDF – Video and Sound Processing IC

Part Number: LA76931J

Function: Single-chip Video and Sound Processor

Package: DIP64S (600mil) Type

Manufacturer: Sanyo, SUSOC

Image :

LA76931J datasheet Microcontroller


The LA76931J 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.

A video and sound processor IC, also known as an audio-video processor IC or audio-video controller IC, is an integrated circuit designed to handle both video and audio processing tasks in electronic devices such as televisions, media players, gaming consoles, and home theater systems. These ICs typically incorporate various functions to enhance and optimize both video and audio signals.

1. Video Processing: These ICs often incorporate video processing functions such as video scaling, deinterlacing, noise reduction, color correction, and image enhancement. These features aim to improve the visual quality, reduce artifacts, and provide a more immersive viewing experience.

2. Audio Processing: Video and sound processor ICs also include audio processing capabilities, which may involve audio decoding, surround sound processing, equalization, audio mixing, and various audio effects. These features enhance the audio quality, spatial immersion, and overall sound performance.


LA76931J pinout

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)



1. For NTSC / PAL / SECAM Color TV

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

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LA76931J Datasheet PDF Download

LA76931 pdf

Other data sheets are available within the file: LA76933J, LA76936Y, LA76938Y


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