Multi-Channel Video and Audio to PCIe Bridge

The CX25822 multi-channel media bridge device enables bi-directional digital video and audio transfers to a host PC via a PCIe x1 interface. The CX25822 contains BT.656/VIP2.0 digital video interfaces supporting up to 36 MHz input clock rates and I2S digital audio interfaces supporting up to 96 kHz sample rates, for uncompressed video and audio data respectively. The CX25822 device is designed for PC-based security Digital Video Recorders (DVRs) supporting 960H applications.

Distinguishing Features

♦ PCIe 1.1 Compliant

♦ Bi-directional BT.656 interfaces to PCIe

♦ Bi-directional I2S interfaces to PCIe

♦ Programmable Motion Detection

♦ Supports “54 MHz Mode” digital video data (2 channel byte-interleaved mode)

♦ 48 GPIO pins

Applications

♦ 960H PC-based DVRs