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TFT Display Controller
TW8833, TW8833S
Applications
•
In-car display controller
•
Portable DVD and DVRs players
•
Portable media player
TFT Panel Support
•
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 analog panel up to WQVGA resolution
•
Support Serial (8-bit) RGB panel
Description
The TW8833 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, triple DACs 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 and analog component inputs. On the output
side, it supports analog panel type with its built-in
timing controller.
On Screen Display
•
Integrated 256 programmable font RAM and 384
display RAM
•
Four windows font OSD with bordering / shadow
•
Supports bit-mapped based OSD through SPI
(TW8833S only)
Image Processing
•
High quality scaler with both up/down and nonlinear
scaling support
•
Built-in 2D de-interlacing function
•
Programmable hue, brightness, saturation, contrast
and peaking
•
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
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 standards
•
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
August 30, 2011
FN7856.0
1
Clock Generation
•
Spread spectrum clock
•
Modulation frequency and spread width are
selectable
Power Management
•
Supports functional based independent power down
control.
•
1.8 / 3.3 V operation
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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