www.intersil.com techwell techwell ntsc/pal/secam video decoder for multimedia applications ntsc/pal/secam video decoder for multimedia applications techwell video decoders TW9909TW9909 6x10-bit multi-standard comb filter video decoder with scart and rgb mixing support * pin to pin with tw9906 6x10-bit multi-standard comb filter video decoder with scart and rgb mixing support * pin to pin with tw9906 target applications analog video decoder ntsc (m, 4.43) and pal (b, d, g, h, i, m, n, n combination), pal (60), secam support with automatic format detection advanced synchronization processing for vcr fast forward, backward, and pause mode software selectable 14 analog input terminals allow maximum flexibility: up to five composite, or two s-video or two up to two scart rgb inputs with fb. six 10-bit adcs with analog clamping circuit and anti-aliasing filter fully programmable static gain or automatic gain control for the y and g(y) channel programmable white peak control for the y channel high quality rgb/ycbcr mixing by fast blanking signal crt, lcd, pdp and projection tv multifunction lcd monitor (monitor tv) dvd-recorder pc tv capture card ycbcr inputs techwell's TW9909 is a high quality ntsc/pal/secam video decoder that is designed for multimedia applications. it uses the mixed-signal 2.5v/3.3v cmos technology to provide a low-power integrated solution. the TW9909 analog front-end is equipped with six separate analog channels that enable it to accept various analog video input standard including composite video, s-video, component video (ycbcr), and scart rgb. with the analog fb support, it also allows the mixing of composite or s-video input with ycbcr/rgb input. all channels include an analog multiplexer (mux) for maximum flexibility in software controlled input selection. it is possible to connect up to five composite inputs or two s- video inputs or two ycbcr inputs or two scart rgb inputs at one time and allow the software to switch between them. alternatively, a maximum combination of five of these inputs may be switched under software control. in the pip mode, a maximum combination of four composite/s- video inputs can be mixed with any of two ycbcr/rgb inputs through the front-end contains all the necessary circuits to simplify the system design. the built-in six high quality 10-bit analog-to-digital converters (adcs) convert inputs into digital signals for processing. the TW9909 uses proprietary adaptive 4h comb filter for chroma and luma separation to achieve high video quality.the image enhancement includes the advanced synchronization processing can produce stable pictures for non-standard signal such as those produced by vcr trick mode. the high quality scaler uses multi-tap poly-phase decimation filter to accurately scale down the image with minimum phase error. it can be programmed to scale-down the output picture to an arbitrary ratio with the TW9909 supports flexible pixel interface. it outputs ycbcr (4:2:2) data stream over 10-bit or 20-bit data path. it also supports both free-running a 2-wire serial mpu interface is used to simplify system integration. all the external fb control. horizontal and vertical peaking, cti and bcs control. cropping. clock and line-locked clock output. functions can be controlled through this interface.
techwell ntsc/pal/secam video decoder for multimedia applications ntsc/pal/secam video decoder for multimedia applications 9099wt 9099wt 6x10-bit multi-standard comb filter video decoder with scart and rgb mixing support * pin to pin with tw9906 6x10-bit multi-standard comb filter video decoder with scart and rgb mixing support * pin to pin with tw9906 TW9909 block diagram miscellaneous two wire mpu serial bus interface power-down mode typical power consumption 0.4w single 27mhz crystal for all standards supports 24.54mhz and 29.5mhz crystal for high quality square pixel format 3.3v / 5v tolerant i/o 2.5v / 3.3v power supply 80 pin tqpf package www.intersil.com ? 2006 intersil americas inc. all rights reserved. the following are trademarks or registered trademarks of intersil americas inc.: intersil, intersil logo, ?i? and design. all other trademarks are the property of the respective trademark owners. video processing adaptive 4h comb filter for the best image quality pal delay line for color phase error correction digital sub-carrier pll for accurate color decoding digital horizontal pll and advanced synchronization processing for non-standard video signals programmable hue, brightness, saturation, contrast, and sharpness blue stretch image enhancement with 2d peaking and cti automatic color control and color killer if compensation filter detection of level of copy protection according to macrovision standard ycbcr input supports 480i/576i and sub- sampled 480p/576p with auto-detection video output supports both free-running and line-locked clock outputs programmable output cropping high quality horizontal filtered scaling with arbitrary scale down ratio vmi 1.4 compatible 10-bit or 20-bit pixel interface itu-r 601 or itu-r 656 compatible output ycbcr(4:2:2) output format vbi slicer supporting industrial standard data services with data packet filter capability built-in vbi fifo for convenient access through host interface vbi data pass through, raw adc data for intercast? field locked audio clock generator audio clock a lrclk analo g video in 4-h adaptive comb filter y/c separation chroma demodulation luma/chroma processor s y nc video out p ut interface vbi slicer vbi fifo 2wire serial bus mux0 dvalid field hsync vsync mpout vd ( 19:0 ) sclk sdat siad0 u v mux3 h/v down scaler/cropping ybout vbi pass through clock 27 mhz pdn clkx2 clkx1 y a mxclk a mclk a sclk intreq cin ( 1 ) cin ( 0 ) mux agc/cla 10-bit adc filter anti-alias filter anti-alias filter mux 10-bit adc clam p line-lock clock generator contrast saturation brightness tint soft mixer fb y cb cr 10-bit adcs muxs c l a m p filter anti-alias filter color matrix filter rin (0) rin (1) gin (0) gin (1) bin (0) bin (1) fb (0) fb (1)
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