fn7775 rev 1.00 page 1 of 2 september 25, 2015 fn7775 rev 1.00 september 25, 2015 TW9920 analog video decoder/encoder data short to request the full datasheet, please visit www.intersil.com/products/TW9920 the TW9920 is a multistandard video decoder and encoder chip that is designed for multimedia applications. this low power, integrated solution has a 4h comb filter based ntsc/pal/secam video decoder that converts analog cvbs or s-video signals into digital ycbcr output. the integrated analog video encoder converts digital ycbc r inputs into analog cvbs or s-video output. features 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 ? software selectable analog inpu ts allow any of the following combinations, e.g., 4 cvbs or (3 cvbs and 1 y/c) ? two 9-bit adcs and analog clamping circuit ? fully programmable static gain or automatic gain control for the y channel ? programmable white peak control for the y or cvbs channel ? 4-h adaptive comb filter y/c separation ? pal delay line for color phase error correction ? image enhancement with 2d peaking and cti ? digital subcarrier pll for accurate color decoding ? digital horizontal pll for sy nchronization processing and pixel sampling ? advanced synchronization processing and sync detection for handling nonstandard and weak signal ? programmable hue, brightness, saturation, contrast, sharpness, gamma control, and noise suppression ? automatic color cont rol and color killer ? detection of level of copy protection according to macrovision standard ?programmable output cropping ? itu-r 601 or itu-r 656 compatible ycbcr(4:2:2) output format ? vbi slicer supporting industrial standard data services ? vbi data pass through, raw adc data for intercast? video scaler ? high quality horizontal filtered scaling with arbitrary scale down ratio ? phase accuracy better than 1/32 pixel ? selectable antialias filter ? vertical down scaling by line dropping video encoder ? support ntsc/pal and its substandard format output ? itu-r 656 compatible video interface ? luminance and chrominance filter ? stable 27mhz crystal clock for subcarrier generation ? five 10-bit digital-to-analog converters at 27mhz sample rate for generating cvbs or y/c and ycbcr simultaneously miscellaneous ? two-wire mpu serial bus interface ? power-down mode ? field locked audio clock generation ? typical power consumption 0.62w ? single 27mhz crystal for all standards ? supports 24.54mhz and 29.5mhz crystal for high resolution square pixel format decoding ?3v tolerant i/o ? 2.5/3.3v power supply ?vfbga package
fn7775 rev 1.00 page 2 of 2 september 25, 2015 TW9920 intersil products are manufactured, assembled and tested utilizing iso9001 quality systems as noted in the quality certifications found at www.intersil.com/en/suppor t/qualandreliability.html intersil products are sold by description on ly. intersil may modify the circuit design an d/or specifications of products at any time without notice, provided that such modification does not, in intersil's sole judgment, affect the form, fit or function of the product. accordingly, the reader is cautioned to verify that datasheets are current before placing orders. information fu rnished by intersil is believed to be accu rate and reliable. however, no responsib ility is assumed by intersil or its subsidiaries for its use; nor for any infrin gements of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of intersil or its subsidiaries. for information regarding intersil corporation and its products, see www.intersil.com for additional products, see www.intersil.com/en/products.html ? copyright intersil americas llc 2015. all rights reserved. all trademarks and registered trademarks are the property of their respective owners.
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