|
BT829B Datasheet, PDF (1/127 Pages) List of Unclassifed Manufacturers – VideoStreamII Decoders | |||
|
Advance Information
This document contains information on a product under development. The parametric information contains target
parameters that are subject to change.
Bt829B/827B
VideoStreamII Decoders
Bt829Bâ Video Capture Processor and Scaler for
TV/VCR Analog Input
Bt827Bâ Composite Video and S-Video Decoder
The Bt829B and Bt827B VideoStream⢠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 Bt829A/827A
family of products. Low operating power consumption and power-down capabil-
ity make them ideal low-cost solutions for PC video capture applications on both
desktop and portable system platforms with a 3.3 V digital I/O interface. They
support square pixel and CCIR601 resolutions for NTSC, PAL, and SECAM video.
They have a ï¬exible pixel port which supports a variety of system interface conï¬g-
urations, and they are offered in a 100-pin Plastic Quad Flat Pack (PQFP).
Functional Block Diagram
XT0 XT1
MUX0
MUX1
MUX2
MUX3
MUXOUT
SYNCDET
REFOUT
YREF+
YIN
YREFâ
CREF+
CIN
CREFâ
Analog
MUX
AGC
40 MHz
ADC
40 MHz
ADC
Ultralock
and
Clock
Generation
I2C JTAG
Video
Timing
Unit
Luma-Chroma
Separation
and
Chroma
Demodulation
Spatial and
Temporal
Scaling
Video
Timing
Output
Control
16
Output
Data
Distinguishing Features
⢠Single-chip composite/S-Video NTSC/PAL/
SECAM to YCrCb digitizer
⢠On-chip Ultralockâ¢
⢠Square Pixel and CCIR601 Resolution for:
â NTSC (M)
â NTSC (M) without 7.5IRE pedestal
â PAL (B, D, G, H, I, M, N, N
combination)
â SECAM
⢠Chroma comb ï¬lter
⢠Arbitrary horizontal and 5-tap vertical
ï¬ltered scaling
⢠Hardware closed-caption decoder
⢠Vertical Blanking Interval (VBI) data
pass-through
⢠Arbitrary temporal decimation for a
reduced frame-rate video sequence
⢠Programmable hue, brightness, saturation,
and contrast
⢠User-programmable cropping of the video
window
⢠2x oversampling to simplify external
analog ï¬ltering
⢠Two-wire Inter-Integrated Circuit (I2C) bus
interface
⢠8- or 16-bit pixel interface
⢠YCrCb (4:2:2) output format
⢠Software selectable four-input analog MUX
⢠4 fully programmable GPIO bits
⢠Auto NTSC/PAL format detect
⢠Automatic Gain Control (AGC)
⢠3.3 V I/O
⢠Typical power consumption 0.85 W
⢠IEEE 1149.1 Joint Test Action Group
(JTAG) interface
⢠100-pin PQFP
Related Products
⢠Bt829A, Bt856/857, Bt864A/865A, Bt864/
865, Bt852
Applications
⢠Multimedia
⢠Image processing
⢠Desktop video
⢠Video phone
⢠Teleconferencing
⢠Interactive video
|
▷ |