XS9933A

XS9933A4-channel 4K@15fps coaxial HD decoding chip solution

Download

XS9933A is a 4-channel analog composite video decoding chip that supports both HDcctv and CVBS protocols up to 4K@15fps. XS9933A converts the received high-definition analog composite video signal through analog-to-digital conversion, video decoding, and 2D image processing into YUV format, which is then transmitted to the master chip via the BT1120 or BT656 interface, enabling real-time preview and recording. XS9933A supports down-stream audio data transmission over coaxial cable from remote camera. It also supports bidirectional data communication with camera for remote camera control and firmware upgrades. By integrating video, audio, and control data transmission into a single cable, it simplifies wiring requirements and enhances the ease of installation and debugging. XS9933A features an embedded audio codec with 5-channel Line-In and 1-channel Line-Out interfaces, enabling 5-channel analog audio capture and 1-channel analog audio output. This facilitates voice recording and intercom applications, simplifying product design.

Specifications

# XS9933A_brief(EN) - 产品描述

视频输入

4-channel analog composite video decoding
Support 1M/2M/3M/4M/5M RT, 6M/8M NRT video format and CVBS format
Support multi-ch analog video format
Support manually extended video format
Embedded Equalizer (EQ) amplifier for best extended reach performance
High speed 10-bit Analog-to-Digital (ADC) for video signal sampling
Programmable clamp control

Video Decoder

Enhanced automatic format recognition for video signal identification
Support AGC, ACC, White Peak
Brightness, Saturation, Contrast, Hue, and Sharpness adjustment
Advanced sync processor for best signal performance
Automatic frequency deviation compensation to accurate color demodulation
Integrated programmable high quality filter for Y/C separation

Audio

5-channel analog audio Line-In with PGA and digital processing
1-channel analog audio Line-Out with gain control
Support 8 or 16KHz sampling rate with a max resolution of 16-bit
Support bidirectional coaxial audio over video for voice intercom with remote cameras

Cascade-able up to 4 chips

Support 1-channel I2S for audio record and 1-channel I2S for audio playback
I2S support multiple channel output