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BT817A Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers |
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1 / 110 page Distinguishing Features • Single-Chip Composite/S-Video NTSC/PAL to YCrCb Digitizer • On-Chip Ultralock TM • Square Pixel and CCIR601 Resolu- tion 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 Related Products • Bt812, Bt858, Bt855, Bt856, Bt857 • Bt851 Applications • Multimedia • Image Processing • Desktop Video • Video Phone • Teleconferencing • Interactive Video 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 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 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. Functional Block Diagram ADC ULTRALOCKTM AND CLOCK MUX0 MUX1 MUXOUT SYNCDET REFOUT YREF+ YIN 16 OUTPUT LUMA-CHROMA SEPARATION AND CHROMA OUTPUT VIDEO YREF– ANALOG MUX ADC CREF+ CIN CREF– AGC TIMING CONTROL DATA I2C JTAG DEMODULATION SPATIAL AND TEMPORAL SCALING VIDEO TIMING UNIT GENERATION XT0 XT1 40 MHZ 40 MHZ MUX2 VideoStream™ Decoders Bt819A/817A/815A |
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