DATASHEET To request the full datasheet, please visit www.intersil.com/products/tw9920 Analog Video Decoder/Encoder TW9920 Video Scaler 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 YCbCr inputs into analog CVBS or S-Video output. • 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 Features • Support NTSC/PAL and its substandard format output Video Decoder • Luminance and chrominance filter • NTSC (M, 4.43) and PAL (B, D, G, H, I, M, N, N combination), PAL (60), SECAM support with automatic format detection • Stable 27MHz crystal clock for subcarrier generation • ITU-R 656 compatible video interface • Software selectable analog inputs 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 • Five 10-bit digital-to-analog converters at 27MHz sample rate for generating CVBS or Y/C and YCbCr simultaneously Miscellaneous • Fully programmable static gain or automatic gain control for the Y channel • Two-wire MPU serial bus interface • Programmable white peak control for the Y or CVBS channel • Field locked audio clock generation • 4-H adaptive comb filter Y/C separation • Typical power consumption 0.62W • PAL delay line for color phase error correction • Single 27MHz crystal for all standards • Image enhancement with 2D peaking and CTI • Supports 24.54MHz and 29.5MHz crystal for high resolution square pixel format decoding • Digital subcarrier PLL for accurate color decoding • Power-down mode • Digital horizontal PLL for synchronization processing and pixel sampling • 3V tolerant I/O • Advanced synchronization processing and sync detection for handling nonstandard and weak signal • VFBGA package • 2.5/3.3V power supply • Programmable hue, brightness, saturation, contrast, sharpness, Gamma control, and noise suppression • Automatic color control 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™ September 25, 2015 FN7775.1 1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2015. All Rights Reserved Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. TW9920 VY VIDEO INTERFACE U LUMA/CHROMA CHROMA SEPARATION VD (19:10) DEMODULATION VBI 4H COMB Y/C 9-BIT ADC AGC MUX0 MUX1 MUX2 MUX3 ADC 9-BIT CIN 0 CIN 1 SLICER Block Diagram VD(9:0) HS VS CLKx2 FIELD DVALID MPOUT PROCESSOR SYNC CLOCK 27MHz GENERATOR LINE-LOCK CLKX1 ASCLK ALRCLK AUDIO AMCLK AMXCLK PDN C LPF DACs SYNC INSERTION C Y LPF MOD VIDEO PDCLK PD[9:0] INTERFACE CVBS/Y Y Cb Cr BUS 2-WIRE SDAT SERIAL SCLK FIGURE 1. BLOCK DIAGRAM For additional products, see www.intersil.com/en/products.html Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted in the quality certifications found at www.intersil.com/en/support/qualandreliability.html Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements 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 Submit Document Feedback 2 FN7775.1 September 25, 2015