Datasheet Intersil TW9920 — Даташит

DATA SHORT
To request the full datasheet, please visit www.intersil.com/products/tw9920 TW9920 FN7775
Rev 1.00
September 25, 2015 Analog Video Decoder/Encoder 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. Video Scaler Features Video Encoder 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 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 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 synchronization 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 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 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 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 Intercastв„ў FN7775 Rev 1.00
September 25, 2015 Page 1 of 2 TW9920 В© Copyright Intersil A …