DATASHEET
TW6869
8-in-1 Video Decoders with PCI Express Media Bridge
The
TW6869
is a highly integrated solution that
supports multi-channel video and audio capture via
PCIe x1 interface for PC DVR system and video
analytic application. It contains high quality eight-
channel NTSC/PAL/SECAM video decoders that
convert analog composite video signal to digital
component YCbCr data, and utilize adaptive 4H comb
filter for separating luminance and chrominance to
reduce cross noise artifacts.
TW6869 contains a high performance proprietary
DMA controller that fully optimizes the utilization of
PCIe x1 bandwidth and enables it to transfer video
and audio data at a high throughput rate that closely
approaches the theoretical limit of PCIex1 interface.
TW6869 is able to simultaneously decode and
transfer 8 real time D1 video, or up to 32 channel non-
real time D1, plus 8 channel audio.
TW6869 decreases the complexity and workload of
client-side software development, and significantly
reduces the strains on PC hardware and resources.
TW6869 also includes a software development kit
(SDK) with Windows and Linux compliant drivers and
reference application software.
FN7867
Rev. 2.00
Sept 26, 2016
Audio Codecs
Integrated eight audio ADCs
8/16 bit audio word length
Sample audio with 8/16/32/44.1/48kHz
DMA Controller
Highly-efficient DMA design can support up to
8 real time D1 video and 8 real time audio
channels, or up to 32 non-real- time video
with optimization of full PCIex1 bandwidth
Multiple video format output support:
UYVY/Y422, YUYV/YUY2, IYU1/Y411, Y41P,
YUV420, RGB555 and RGB565
Integrated internal video and audio generator
simplifies system test and development
Built-in motion detection engine for each
video channel
Hardware-friendly design enables smooth
data transfer and virtually eliminates
unwanted big-block data jamming among PC
devices, resulting in optimized PC internal
bandwidth consumption
PCIe Configurations
PCI Express Base Specification 1.1 Compliant
Flexible PCIe packet size configuration: 128
byte, 256 byte and 512 byte options
Features
Video Decoders
Accepts all NTSC(M/N/4.43) /
PAL(B/D/G/H/I/K/L/M/N/60) standards with
auto detection
Integrated eight video analog anti-alias filters
and 10-bit CMOS ADCs
IF compensation filter for improvement of
color demodulation
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 application
High performance adaptive 4H comb filters
for all NTSC and PAL standards
Applications
PC-based DVR system
Video analytic system
FN7867 Rev. 2.00
Sept 26, 2016
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