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BT819AKPF Datasheet

  • BT819AKPF

  • VideoStream Decoders

  • 110頁

  • ETC

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Bt819A/817A/815A
VideoStream鈩?Decoders
Bt819A 鈥?Video Capture Processor for
TV/VCR Analog Input
Bt817A 鈥?Composite Video and S-Video Decoder
Bt815A 鈥?Composite Video Decoder
The Bt819A, Bt817A and Bt815A VideoStream Decoders are a family of single-
chip, pin and register compatible, composite NTSC/PAL video and S-video
decoders. 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 resolu-
tions for both NTSC and PAL. They have a 鏗俥xible pixel port which supports a
variety of system interface con鏗乬urations, and they are offered in both a 100-pin
PQFP and 100-pin TQFP.
Distinguishing Features
鈥?Single-Chip Composite/S-Video
NTSC/PAL to YCrCb Digitizer
TM
鈥?On-Chip Ultralock
鈥?Square Pixel and CCIR601 Resolu-
tion for NTSC and PAL
鈥?Chroma Comb Filtering
鈥?Arbitrary Horizontal Scaling and
Vertical Scaling (using line store)
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 Filtering
鈥?Two-Wire I
2
C Bus Interface
鈥?On-Chip 40-Pixel-Deep
Asynchronous Output FIFO
鈥?8- or 16-Bit Pixel Interface
鈥?YCrCb (4:2:2) Output Format
鈥?Software Selectable Three-Input
Analog Mux
鈥?Auto NTSC/PAL Format Detect
鈥?Automatic Gain Control
鈥?IEEE 1149.1 (JTAG) Interface
鈥?100-Pin PQFP and TQFP Packages
Functional Block Diagram
XT0
MUX0
MUX1
MUX2
MUXOUT
SYNCDET
REFOUT
YREF+
YIN
YREF鈥?/div>
CREF+
CIN
CREF鈥?/div>
XT1
A
NALOG
M
UX
U
LTRALOCK
TM
AND
I
2
C
JTAG
FIFO
AND
O
UTPUT
F
ORMATTING
V
IDEO
T
IMING
AGC
D
ECIMATION
LPF
C
LOCK
G
ENERATION
V
IDEO
T
IMING
U
NIT
40 MH
Z
ADC
L
UMA
-C
HROMA
S
EPARATION
AND
O
UTPUT
C
ONTROL
40 MH
Z
ADC
C
HROMA
D
EMODULATION
S
PATIAL AND
T
EMPORAL
S
CALING
Related Products
16
O
UTPUT
D
ATA
鈥?Bt812, Bt858, Bt855,
Bt856, Bt857
鈥?Bt851
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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