XS9935C

XS9935C4-Channel HD/SD Analog Video Decoder

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XS9935C is a 4-channel analog composite video decoding chip that supports both HDcctv and CVBS protocols up to 4K@15fps. XS9935C 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.

Specifications

VI

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

VO

ITU-R BT.656/BT.1120 YUV422 output with embedded sync
Support flexible 2-channel multiplexed output on any BT bus
Support 4-channel multiplexed output on any BT bus
Support Y/UV swap on BT.1120 bus
Support programmable channel ID in multiplexed output
Support programmable clock delay characteristics for different chip interconnection requirements
Support single edge data output (SEDO) and double edge data output (DEDO)

Bidirectional Communication

Programmable up-stream data sending over cable
Programmable down-stream data decoding
Support firmware upgrades for remote cameras Peripherals