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4-in-1 Video Decoders with PCI Express Media
Bridge
TW6865
The TW6865 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 fourchannel 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.
TW6865 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. TW6865 is able to simultaneously decode
and transfer 4 real time D1 video, or up to 16
channel non-real time D1, plus 8 channel audio.
TW6865 decreases the complexity and workload of
client-side software development, and significantly
reduces the strains on PC hardware and resources.
TW6865 also includes a software development kit
(SDK) with Windows and Linux compliant drivers
and reference application software.
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 4
real time D1 video and 8 real time audio channels,
or up to 16 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 bigblock data jamming among PC devices, resulting
in optimized PC internal bandwidth consumption
PCIe Configurations
PCI Express Base Specification 1.1 Compliant
Features
Flexible PCIe packet size configuration: 128 byte,
256 byte and 512 byte options
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
Applications
PC-based DVR system
Video analytic system
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
1
FN8304.0
April 20, 2012
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2012. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
TW6865
Block Diagram
Analog Video
16-Channel
Analog Audio
8-Channel
AIN1 … AIN8
VIN1 … VIN16
…
…
4-Ch Video
Decoder
8-Ch Audio ADC
& Codec
Data
Power
Mgmt.
XTAL
PLL
GPIO
GPIO
& Ext.
Controller
XADM
Bus
Video
Process
Motion
Detection
Internal
Video & Audio
Generator
FIFO
Control
Unit
Video
DMA Controller
Audio
DMA Controller
LBC
RADM
CDM
CXPL Core
PCIe PHY
PCI-e Finger
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality.
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is
cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its
subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent
rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
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TW6865-TA1-CR
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