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BT829AKTF Datasheet

  • BT829AKTF

  • VideoStream DECODER

  • 1256.31KB

  • 136頁

  • ETC

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Advance Information
This document contains information on a product under development. The para-
metric information contains target parameters that are subject to change.
Bt829A/827A
VideoStream II Decoders
Bt829A鈥?/div>
Video Capture Processor & Scaler for
TV/VCR Analog Input
Bt827A鈥?/div>
Composite Video and S-Video Decoder
The Bt829A and Bt827A VideoStream鈩?Decoders are a family of single-chip, pin-
and register-compatible, composite NTSC/PAL/SECAM video and S-Video decod-
ers. They are also pin and register backward compatible with the Bt829/827 family
of products. Low operating power consumption and power-down capability make
them ideal low-cost solutions for PC video capture applications on both desktop and
portable system platforms. They support square pixel and CCIR601 resolutions for
NTSC, PAL and SECAM video. They have a 鏗俥xible pixel port which supports a
variety of system interface con鏗乬urations, and they are offered in 100-pin PQFP and
100-pin TQFP packages.
Distinguishing Features
鈥?Single-chip composite/S-Video
NTSC/PAL/SECAM to YCrCb digitizer
鈥?On-chip Ultralock
鈩?/div>
鈥?Square pixel and CCIR601 resolution for:
鈥?NTSC (M)
鈥?NTSC (M) without 7.5IRE pedestal
鈥?PAL (B, D, G, H, I, M, N, N
combination)
鈥?SECAM
鈥?Chroma comb 鏗乴ter
鈥?Arbitrary horizontal and 5-tap vertical
鏗乴tered scaling
鈥?Hardware closed-caption decoder
鈥?Vertical Blanking Interval (VBI) data
pass-through
鈥?Arbitrary temporal decimation for a
reduced frame-rate video sequence
鈥?Programmable hue, brightness, saturation,
and contrast
鈥?User-programmable cropping of the video
window
鈥?2x oversampling to simplify external
analog 鏗乴tering
鈥?Two-wire Inter-Integrated Circuit (I
2
C)
bus interface
鈥?8- or 16-bit pixel interface
鈥?YCrCb (4:2:2) output format
鈥?Software selectable four-input analog
MUX
鈥?4 fully programmable GPIO bits
鈥?Auto NTSC/PAL format detect
鈥?Automatic Gain Control (AGC)
鈥?Typical power consumption 0.85 W
鈥?IEEE 1149.1 Joint Test Action Group
(JTAG) interface
鈥?100-Pin PQFP and TQFP packages
Functional Block Diagram
XT0
MUX0
MUX1
MUX2
MUX3
MUXOUT
SYNCDET
REFOUT
YREF+
YIN
YREF鈥?/div>
CREF+
CIN
CREF鈥?/div>
XT1
Analog
MUX
AGC
Decimation LPF
Output Formatting
Ultralock鈩?/div>
and
Clock
Generation
I
2
C
JTAG
Video
Timing
Video
Timing
Unit
40 MHz
ADC
Output
Control
40 MHz
ADC
Luma-Chroma
Separation
and
Chroma
Demodulation
Spatial and
Temporal
Scaling
16
Output
Data
Related Products
鈥?Bt819A, Bt829, Bt856/857, Bt864/865,
Bt866/867, Bt852
Applications
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Multimedia
Image processing
Desktop video
Video phone
Teleconferencing
Interactive video

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