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8-Channel Video/Audio Decoder with Integrated Audio DAC

The CX25828 eight-channel video decoder was designed for surveillance applications. The CX25828 contains

eight high-quality NTSC/PAL video decoders, nine audio ADCs, and one audio DAC.

CX25828 Features

Eight High-Quality NTSC/PAL video decoders:

– Anti-aliasing filters

– 10-bit ADCs

– 5-line comb filtering

– Independent scaling

– Brightness/Contrast/Hue/Saturation/Sharpness controls

– Excellent low level-signal locking

Audio Codec

– 9 ADCs (8 ADCs for each camera input and one pair audio codec for two-way communication function)

– 1 DAC

– Support for 8/16/32/44.1/48k Hz sample rates

– 4 I2S interfaces for record, mix, cascade, and playback

– Support interleaved I2S/DSP style output

– A-law/u-law encoding

– 8/16/24 bit PCM audio data

Flexible digital video output formats

– ITU-R BT.656

– Byte-interleaved of multiple sources at 27/54/108 MHz

Programmable Motion Detection

I2C interface

9 GPIOs

The CX25828 is packaged in a 128-pin eTQFP package.