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TW8811
In-Car LCD Display Processor
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Product
Description |
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TW8811 is a high performance integrated LCD display processor
designed for in-car display applications including navigation systems, in
dash DVD players, rear-seat/head-mount displays, and automotive TVs.
The chip uses a single 27Mhz crystal, comes in a 208-pin PQFP package
and is qualified for automotive applications including -40C to +85C
temperatures and 1,000 hours of reliability testing. TW8811 requires an
external 64mbit SDRAM to support PIP and other advanced functions.
Inputs include composite video, s-video,YPbPr, analog RGB, 24 bit digital
RGB and 8/16/24 bit YCbCr. For composite video streams, a high quality
3D comb filter for NTSC and PAL with concurrent 3D noise reduction is
integrated to reduce artifacts typically found in analog video signals.
In addition to a 3D comb filter, a number of proprietary image
processing algorithms are implemented in TW8811 to improve picture
quality including a built in 2D-deinterlacing engine with low angle
compensation, black/white stretch and color enhancement.TW8811 has
a sophisticated PIP function that includes Picture in Picture (PIP) with
variable sub-window size, picture over picture (POP), and multiple PIP.
The TW8811 on-screen display can select 256 colors from 24-bit colors
(16.7 million colors) and is a graphic style OSD with a variety of
functions including blinking, transparency, blending, and multi-window
support. The TW8811 also supports external 18-bit OSDs with external
alpha blending control.
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Target
Applications |
- Navigation system
- In dash DVD
- Rear-seat/head-mount display
- Automotive TV
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Analog Video Decoder
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- 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 allows any
of the following combinations:
- Up to 4 composite video
- Up to 2 S-Video
- Up to 1 YPbPr
- High quality motion adaptive 3D comb filter
for both NTSC and PAL with concurrent 3D
noise reduction
- 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
synchronication processing for VCR playback
and weak signal performance
- Programmable hue, brightness, saturation,
contrast, sharpness
- High quality horizontal and vertical filtered
down scaling with arbitrary scale down ratio
- Detection of level of copy protection
according to Macrovision standard
- Support YPbPr input up to 1080i with sub-
sampled resolution
- Support automatic standard detection for
YPbPr unput
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Image Processing |
- Built-in 2D de-interlacing engine with proprietary low angle
compensation circuit for smooth video rendering
- Built-in high quality scaler with nonlinear scaling support
- Programmable hue, brightness, saturation, contrast
- Sharpness control with vertical peaking up to +12db
- Programmable color transient improvement control
- Supports programmable cropping of input video and graphics
- Independent RGB gain and offset controls
- Panorama / Water-glass scaling
- DTV hue adjustment
- Programmable Gamma correction for each color
- Operated in Frame Sync mode only
- Black / White Stretch
- Programmable favorite color enhancement
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24-bit Digital RGB and 8/16/24-bit YCbCr Inputs |
- Allows connection with alternative Video and PC Graphics inputs
- Supports both 656 and 601 video formats
- Allows connection to HDMI | DVI receiver
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TFT Panel Support |
- Supports panel with resolution up to WXGA (1366x768)
- Supports 3, 4, 6, or 8 bits per pixel up to 16.8 million colors with built-
in dithering engine
- Supports single channel TTL panel
- Supports analog panel with analog RGB output
- Built-in programmable timing controller
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On Screen Display |
- Selectable 256 colors from 24-bit color (16.7 million colors)
- Supports window bitmapped OSD
- Built-in OSD controller with BitBlit Engine
- Support variety functions including blinking, transparenc y,
blending, and multi-windows
- Supports External 16-bit OSD with external alpha blending control
- Supports OSD compression
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Analog RGB Inputs |
- Triple 80 MHz 9-bit ADCs with clampling and programmable gain
amplifier
- Up to three independent RGB / YPbPr channels with corresponding
SOG
- Built-in line locked PLL with sync separator
- Allows high resolution components inputs like DTV 480p, 720p, 1080i
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Clock Generation |
- Frequency synthesizer with spread spectrum generate memory and
display clocks
- Spread spectrum profile based on triangular modulation with center
spread
- Modulation frequency and spread width can be selectable
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Host Interface |
- Supports 2-wire serial bus interface
- Supports 8-bits Parallel Host Interface
- Supports DMA transfer
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SDRAM |
- Supports 16-bits Bus width SDRAM
- 64Mbit SDRAM recommended
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Power Management |
- Supports panel power sequencing
- Supports DPMS for monitor power management
- 1.8 / 3.3 V operation
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PIP Function |
- PIP with variable sub window size
- POP
- Multiple PIP support
- Built-in high quality up/down scaling engine for PIP
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Miscellaneous |
- Power-down mode
- Single 27 MHz crystal
- 208-pin PQFP package
- -40C to +85C temperature guarantee
- 1,000 hours reliability tested
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