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Bt819A/817A/815A
VideoStream™ Decoders
Bt819A – Video Capture Processor for TV/VCR Analog Input Bt817A – Composite Video and S-Video Decoder Bt815A – Composite Video Decoder
The Bt819A, Bt817A and Bt815A VideoStream Decoders are a family of singlechip, 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 resolutions for both NTSC and PAL. They have a flexible pixel port which supports a variety of system interface configurations, and they are offered in both a 100-pin PQFP and 100-pin TQFP. DataSheet4U.com
Distinguishing Features
• Single-Chip Composite/S-Video NTSC/PAL to YCrCb Digitizer TM • On-Chip Ultralock • Square Pixel and CCIR601 Resolution for NTSC and PAL • Chroma Comb Filtering • Arbitrary Horizontal Scaling and Vertical Scaling (using line store) • 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 Filtering • Two-Wire I2C Bus Interface • On-Chip 40-Pixel-Deep Asynchronous Output FIFO • 8- or 16-Bit Pixel Interface • YCrCb (4:2:2) Output Format • Software Selectable Three-Input Analog Mux • Auto NTSC/PAL Format Detect • Automatic Gain Control • IEEE 1149.1 (JTAG) Interface • 100-Pin PQFP and TQFP Packages
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Functional Block Diagram
XT0 MUX0 MUX1 MUX2 MUXOUT SYNCDET REFOUT YREF+ YIN YREF– CREF+ CIN CREF– XT1
ANALOG MUX
ULTRALOCKTM
AND
I2C
JTAG FIFO AND OUTPUT FORMATTING VIDEO TIMING
CLOCK AGC DECIMATION LPF GENERATION
VIDEO TIMING UNIT
40 MHZ ADC
LUMA-CHROMA SEPARATION
AND
OUTPUT CONTROL
CHROMA DEMODULATION
SPATIAL AND TEMPORAL SCALING
Related Products
16 OUTPUT DATA
40 MHZ ADC
• Bt812, Bt858, Bt855, Bt856, Bt857 • Bt851
Applications
• • • • • • Multimedia Image Processing Desktop Video Video Phone Teleconferencing Interactive Video
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Ordering Information
Model Number Bt819AKPF Bt819AKTF Bt817AKPF Bt817AKTF Bt815AKPF Package 100-pin PQFP 100-pin TQFP 100-pin PQFP 100-pin TQFP 100-pin PQFP Ambient Temperature Range 0˚C to +70˚C 0˚C to +70˚C 0˚C to +70˚C 0˚C to +70˚C 0˚C to +70˚C
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Copyright © 1996 Rockwell Semiconductor Systems. All rights reserved. Print date: September, 1996 Rockwell reserves the right to make changes to its products or specifications to improve performance, reliability, or manufacturability. Information furnished by Rockwell Semiconductor Systems is believed to be accurate and reliable. However, no responsibility is assumed by Rockwell Semiconductor Systems for its use; nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by its implication or otherwise under any patent or patent rights of Rockwell Semiconductor Systems. Rockwell products are not designed or intended for use in life support appliances, devices, or systems where malfunction of a Rockwell product can reasonably be expected to result in personal injury or death. Rockwell customers using or selling Rockwell products for use in such applications do so at their own risk and agree to fully indemnify Rockwell for any damages resulting from such improper use or sale. Bt is a registered trademark of Rockwell Semiconductor Systems. Product names or services listed in this publication are for identification purposes only, and may be trademarks or registered trademarks of their respective companies. All other marks mentioned herein are the property of their respective holders. Specifications are subject to change without notice.
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TABLE OF CONTENTS
List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii List of Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Functional Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Bt819A Video Capture Processor for TV/VCR Analog Input. . . . . . . . . . . . . . . . . . . . Bt817A Composite/S-Video Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bt815A Composite Video Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bt819A Architecture and Partitioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..