DATASHEET
To request the full datasheet, please visit
www.intersil.com/products/TW8831
TFT Display Controller
TW8831
The TW8831 incorporates many of the features
required to create multi-purpose in-car LCD display
system in a single package. It integrates a high
quality 2D comb NTSC/PAL/SECAM video decoder,
triple high speed RGB ADCs, high quality scaler, and
images enhancement functions which include Black
and White Stretch and etc. It also supports
panoramic scaling for conversion to wide screen
display. On the input side, it supports a rich
combination of CVBS, S-video. On the output side, it
supports variety of digital panel types with its built-in
timing controller.
Support Serial (8bit) RGB panel
256 programmable font RAM and 384 display
RAM.
Four windows font OSD with bordering / shadow
High quality scaler with both up/down and
nonlinear scaling support
Built-in 2D de-interlacing function
Programmable hue, brightness, saturation,
contrast and sharpness
Supports programmable cropping of input video
and graphics
Independent RGB gain and offset controls
Panorama / Water-glass scaling
Programmable 10-bit Gamma correction for
each color
Operated in Frame Sync mode
Black/White Stretch
Spread spectrum clock
Modulation frequency and spread width are
selectable
Supports functional based independent power
down
1.8 / 3.3 V operation
Supports 2-wire serial bus interface
Built-in single LED back light controller
Built-in VCOM DC voltage
Built-in VCOM analog amplitude
Built-in DC-DC convertor
Single 27MHz crystal
80-pin LQFP package
On Screen Display
Image Processing
Features
Analog Video Decoder
NTSC (M, 4.34) and PAL (B, D, G, H, I, M, N, N
combination), PAL (60), SECAM with automatic
format detection
Three 10-bit ADCs and analog clamping circuit
Fully programmable static gain or automatic
gain control for the Y or CVBS channel
Programmable white peak control for the Y or
CVBS channel
Software selectable analog inputs
High quality adaptive 2D comb filter for both
NTSC and PAL inputs
PAL delay line for color phase error correction
Image enhancement with 2D dynamic peaking
and CTI
Digital sub-carrier PLL for accurate color
decoding
Digital horizontal PLL and Advanced
synchronization processing for VCR playback
and weak signal performance
Programmable hue, brightness, saturation,
contrast and sharpness
High quality horizontal and vertical filtered down
scaling with arbitrary scale down ratio
Built-in programmable timing controller
Supports 3, 4, 6 or 8 bits per pixel up to 16.8
million colors with built-in dithering engine
Support digital panel up to WVGA/SVGA
resolution
1
Clock Generation
Power Management
Miscellaneous
TFT Panel Support
Applications
In-car display controller
Portable DVD and DVRs players
Portable media player
April 25, 2013
FN7825.1
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 2011, 2013. 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.
TW8831
FLAT PANEL OUT
YIN0~2
FONT
OSD
2D-COMB
VIDEO
DECODER
Triple
ADCs
INPUT
CONTROLLER
SCALER
IMAGE
ENHANCE
OUTPUT
FORMATTER
TCON
TCON SIGNALS
SERIAL DATA
CIN
VIN
LED/
VCOM
CONTROL
2-WIRE
SERIAL
BUS
I2C_SDAT
I2C_SCLK
FUNCTIONAL BLOCK DIAGRAM
For additional products, see
www.intersil.com/product_tree
Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted
in the quality certifications found at
http://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
http://www.intersil.com
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