Key features
Video decoder
All NTSC(M/N/4.43) / PAL (B/D/G/H/I/K/L/M/N/60) / SECAM standard are automatically detected
Integrated 8-channel video-analog anti-aliasing filter and 10-bit CMOS analog-to-digital converter
If you improve the color demodulation compensation filter
Color Transient Improvement (CTI)
White peak AGC control
Programmable hue, saturation, contrast, brightness and clarity
High-quality, proprietary fast video locking system for non-real-time applications
High performance adaptive 4H comb filter with high NTSC and PAL standards
Audio codec
Four audio ADCs are integrated
Supports cascading of audio multiplexed from TW2864
8/16 bit audio word length
Sample audio with 8/16/32/44.1/48kHz
DMA controller
Efficient DMA design that supports up to 8 D1 live video and 8 real-time audio channels, or up to 32 non-real-time video full PCIex1 bandwidth optimization
Multi-format video output support: UYVY/Y422, YUYV/YUY2, IYU1/Y411, Y41P, YUV420, RGB555 and RGB565
Internally integrated video and audio signal generators simplify system testing and development
Each video channel detection engine is built into the motion
The friendly hardware design enables smooth data transfer and virtually eliminates the interference between PC devices that do not require large chunks, resulting in optimized bandwidth consumption within the PC
Configuration of PCIe
PCI Express Basic Specification 1.1 and 2.0 standards
Flexible PCIe packet size configuration: 128-byte, 256-byte and 512-byte options
description
The TW6869 is a highly integrated solution that supports multi-channel video and audio capture over PCIe x1 interface for PC DVR systems and video analytics applications. It contains a high-quality eight-channel NTSC/PAL/SECAM video decoder, converts analog composite video signals into digitally composed YCbCr data, and utilizes adaptive 4H comb filters to separate luminance and chromaticity to reduce cross-noise unnatural signals. The TW6869 contains a high-performance proprietary DMA controller that fully optimizes the bandwidth utilization of PCIe x1 and enables it to transmit video and audio data at a high throughput rate, approaching the theoretical limits of a PCIex1 interface. The TW6869 is capable of simultaneously decoding and transmitting real-time D1 video or up to 32 channels of non-real-time D1, plus 8-channel audio. ,,TW6869 reduces the complexity and effort of client software development and significantly reduces the plant hardware and resources on the PC. TW6869 also includes a software development kit (SDK) for drivers and reference application software compatible with Windows and Linux