tw9919

DATASHEET
To request the full datasheet, please visit www.intersil.com/products/TW9919
5x10-bit Multi-standard 3D Comb Filter Video
Processor with SCART and RGB Mixing Support
TW9919
• IF compensation filter
Techwell’s TW9919 is a high performance NTSC/PAL/SECAM
multi-standard 10-bit video decoder plus SCART/YCbCr
component inputs and analog RGB overlay support designed
for multimedia applications.
TW9919 uses the mixed-signal 2.5V/3.3V CMOS technology to
provide a low-cost and low-power integrated solution.
Minimum external components are required due to its
integrated analog front-end containing anti-aliasing filter, AGC,
clamping, and five 10-bit high speed ADCs. For composite
inputs, an adaptive comb filter and luma/chroma processing
produce exceptionally high quality pictures using proprietary
techniques. A high quality internal scaling engine offers
arbitrarily filtered down scaling of the output video. Its VBI
capability is enhanced with built-in VBI slicer, filter, FIFO and
VBI data pass-through function to support common data
services.
Features
NTSC (M, 4.43) and PAL (B, D, G, H, I, M, N, N combination),
PAL (60), SECAM support with automatic format detection
• Advanced synchronization processing for VCR trick mode
and weak signal
• Software selectable 14 analog input terminals allow
maximum flexibility:
• Detection of level of copy protection according to
Macrovision standard
• YCbCr input supports 480i/576i and sub-sampled
480p/576p with auto-detection.
Video Output
• Support both free-running and line-locked clock outputs
• Programmable output cropping
• High quality horizontal filtered scaling with arbitrary scale
down ratio
• 10-bit or 20-bit output interface
• ITU-R 601 or ITU-R 656 compatible output YCbCr(4:2:2)
output format
• VBI slicer supporting industrial standard data services with
data packet filter capability
• Built-in VBI FIFO for convenient access through host
interface
• VBI data pass through, raw ADC data for Intercast™
• Field locked audio clock generator
Miscellaneous
• Two wire MPU serial bus interface
• Up to six composite, or two S-Video or two YCbCr inputs
• Up to two SCART RGB inputs with FB.
• Five 10-bit ADCs with clamping circuit and anti-aliasing filter
built-in
• Fully programmable static or automatic gain control for the
Y and G(Y) channel
• Power-down mode
• Typical power consumption 0.6W
• Single 27MHz crystal for all standards
• Supports 24.54MHz and 29.5MHz crystal for high quality
square pixel format
• 3.3V / 5V tolerant I/O
• Programmable white peak control for the Y channel
• 2.5V / 3.3V Power Supply
• High quality analog RGB/YCbCr mixing by Fast Blanking
signal
128 pin PQFP package
• High quality motion adaptive 3D comb filter for both NTSC
and PAL with concurrent 3D noise reduction
• Adaptive 4H comb filter for the best image quality
• PAL delay line for color phase error correction
• Digital sub-carrier PLL for accurate color decoding
• Digital Horizontal PLL and advanced synchronization
processing for non-standard video signals
• Programmable hue, brightness, saturation, contrast, and
sharpness
• Blue stretch function
• Image enhancement with 2D peaking and CTI.
• Automatic color control and color killer
January 5, 2015
FN7774.0
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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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TW9919
Cr
MUX3
MUX4
MUX5
Chroma
Demodulator
Cb
VD(19:0)
Cr
MPOUT
VSYNC
Memory controller
HSYNC
2 Wire
Serial Bus
SIAD
SCLK
SDAT
VBI Pass
through
27 Mhz
FIELD
DVALID
CLKx2
CLKx1
PDN
VBI Slicer
VBI FIFO
Clock
Line-lock
clock
Generator
Sync
YBFOUT
Y
Video Interface
MUX2
4-H adaptive
comb filter
MUX1
Y/C
Frame-comb
filter & Motion
detector
AGC/Clamp
CIN1
CIN0
MUX0
ADC X 2
FB
H / V Down
Scaler/Cropping
Cb
MIXER
Contrast
Saturation
Brightness
Tint
RGB-YUV
FB1/0
ADC X 4
Clamp
RGB/YCrCb0
3D Noise
Reduction
Y
RGB/YCrCb1
Analog Video In
Contrast/Brightness
Peaking/CTI
Block Diagram
Audio
AMXCLK
AMCLK
ASCLK
ALRCLK
SDRAM
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in the quality certifications found at www.intersil.com/en/support/qualandreliability.html
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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.
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