Multi-Channel Video and Audio to PCIe Bridge

The CX25820/1 multi-channel media bridge devices enable bi-directional digital video and audio transfers to a host PC via a PCIe x1 interface. The CX25820 and CX25821 contain BT.656/VIP2.0 digital video interfaces supporting 27 MHz input clock rates and I²S digital audio interfaces supporting up to 96 kHz sample rates, for uncompressed video and audio data respectively. Both devices are designed for PC-based security Digital Video Recorders (DVRs) supporting PAL and NTSC 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
PAL and NTSC PC-based DVRs
Multi-monitor Displays