Key features:
Video decoder
Accepts all NTSC (M/N/4.43) / PAL (B/D/G/H/I/K/L/M/N/60) / SECAM standard automatic detection
Integrated 8-channel video analog antialiasing filter and 10-bit CMOS analog-to-digital converter
If the color demodulation compensation filter is improved
Color Transient Improvement (CTI)
White Peak AGC control
Programmable hue, saturation, contrast, brightness and sharpness
High-quality, proprietary, fast video locking system for non-real-time applications
High performance adaptive 4H comb filter that exceeds all NTSC and PAL standards
Audio codecs
Integrates four audio ADCs
Supports cascading multiplexed audio from the TW2864
8/16-bit audio word length
Sample audio with 8/16/32/44.1/48kHz
DMA controller
Efficient DMA design supports up to 8 D1 live video and 8 live 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
The integrated video and audio signal generator simplifies system testing and development
Proposals built into the detection engine for each video channel
The friendly hardware design enables smooth data transmission and virtually eliminates the interference between PC devices that do not require large data blocks, resulting in optimized bandwidth consumption within the PC
PCIe configuration
PCI Express Base Specification 1.1 and 2.0 standards
Flexible PCIe packet size configurations: 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 the PCIe x1 interface for PC DVR systems and video analytics applications. It contains a high-quality eight-channel NTSC/PAL/SECAM video decoder, which converts analog composite video signals into digital YCbCr data, and utilizes an adaptive 4H comb filter to separate brightness and chroma to reduce cross-noise unnatural signals. The TW6869 includes a high-performance proprietary DMA controller that fully optimizes PCIe x1 bandwidth utilization and enables it to transmit video and audio data at a high throughput rate close to the theoretical limits of PCIex1 interfaces. 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. The TW6869 reduces the complexity and workload of client software development, and significantly reduces the hardware and resources on the PC. The TW6869 also includes a software development kit (SDK) for Windows and Linux-compatible drivers and reference application software