tw9910

DATASHEET
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Low Power NTSC/PAL/SECAM Video Decoder with
VBI Slicer
TW9910
Features
Video Decoder
Video Scaler
 NTSC (M, 4.43) and PAL (B, D, G, H, I, M, N, N
combination), PAL (60), SECAM support with
automatic format detection
 High quality horizontal filtered scaling with
arbitrary scale down ratio
 Software selectable analog inputs allow any of
the following combinations, e.g. 4 CVBS or (3
CVBS and 1 Y/C).
 Programmable output cropping
 Built-in analog anti-alias filter
 Two 10-bit ADCs and analog clamping circuit
 Fully programmable static gain or automatic
 Two wire MPU serial bus interface
gain control for the Y channel
 Programmable white peak control for the Y
channel
 Phase accuracy better than 1/32 pixel
Miscellaneous
 Support Real Time Control interface
 Power save and Power down mode
 Typical power consumption <100mW
 Single 27MHz crystal for all standards
 4-H adaptive comb filter Y/C separation
 Supports 24.54MHz and 29.5MHz crystal for
high resolution square pixel format decoding
 PAL delay line for color phase error correction
 3.3V tolerant I/O
 Image enhancement with peaking and CTI.
 1.8V/3.3 V power supply
 Digital sub-carrier PLL for accurate color
decoding
 44 pin LQFP, 48 pin QFN package
 Digital Horizontal PLL for synchronization
processing and pixel sampling
 Advanced synchronization processing and sync
detection for handling non-standard and weak
signal
 Programmable hue, brightness, saturation,
contrast, and sharpness.
 Automatic color control and color killer
 Chroma IF compensation
 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 output
October 10, 2012
FN7773.1
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 Inc. 2011. 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.
V
Y
Scaling / Video Interface
U
Luma/Chroma
processor
Chroma
Demodulation
VD (15:8)
Sync
Processor
PDN
4H Adaptive
Comb Filter
10-bit
ADC
10-bit
ADC
Line-lock
clock
Generator
27 Mhz
MUX
MUX0
MUX1
(1)
MUX2
MUX3
AGC
CIN 0
Clock
Analog Video In
VBI Slicer
Functional Description
VD(7:0)
HS
VS
CLKx2
MPOUT
SCLK
SDAT
2 Wire
Serial Bus
RSTB
FIGURE 1. TW9910 BLOCK DIAGRAM
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