DATA SHORT
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TW9912
NTSC/PAL/SECAM Video Decoder with Component
Input and Progressive Output Support
FN7945
Rev. 2.00
October 17, 2013
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 input control
Analog Video Input
Triple 10-bit ADCs with independent clamping and
gain control
Supports 480i/480p/576i/576p analog component
input with SOG
Built-in analog anti-alias filter
Fully programmable static gain or automatic gain
control for the Y channel
Programmable white peak control for the Y channel
4-H adaptive comb filter Y/C separation
PAL delay line for color phase error correction
Image enhancement with peaking and CTI
Digital sub-carrier PLL for accurate color decoding
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
VBI slicer supporting CC and WSS data services
Programmable output control
Digital Output
ITU-R 656 compatible YCbCr(4:2:2) output format
Progressive ITU-R 656 output format support for both
interlaced and progressive inputs
Miscellaneous
Two wire MPU serial bus interface
Power save and Power down mode
Low power consumption
Single 27MHz crystal for all operations
3.3V tolerant I/O
1.8V/3.3 V power supply
48 pin QFN package
FN7945 Rev. 2.00
October 17, 2013
Page 1 of 2
TW9912
Functional Description
VBI Slicer
SOG
PLL
VD[7:0]
Analog Video In
Triple 10-bit AFE
Chroma
Demodulation
VIN 0
CIN1-0
U
4H Adaptive
Comb Filter
YIN3-0
V
Luma/Chroma
processing
Video Interface
HSO
VSO
CLKO
MPOUT
Y
27 Mhz
Line-lock
clock
Generator
Clock
PDN
RSTB
Sync
Processor
SCLK
SDAT
2 Wire
Serial Bus
FIGURE 1. TW9912 BLOCK DIAGRAM
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FN7945 Rev. 2.00
October 17, 2013
Component
Processing
Page 2 of 2
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