Product Status: Mass Production
OVERVIEW
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 LQFP 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.
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.
KEY 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 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
- 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
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
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
BLOCK DIAGRAM
PARAMETRICS
Parameters
TW8811D
Basic Information
Production Status
Mass Production
CVBS Input
Yes
S-Video Input
Yes
YPbPr Input
Yes
SCART Input
Yes
Analog RGB Input
Yes
ADC Input Frequency (MHz)
108
Digital RGB/Y CbCr Input
24 bit
LVDS Input
No
MIPI-CSI2 input
No
Comb Filter
3D / 2D
Max Output Resolution
WXGA
Qualification Level
Automotive
De-Interlacer
2D
Color Enhancement
Yes
PIP
Yes
OSD Type
Graphic (8 bit)
OSD Font ROM
N/A
External OSD
Analog,Digital 18-bit & PIP overlay
OSD Colors
256 Color/24-Bit Palette
TCON Output
Digital & Analog
Dual View Output
No
LVDS Output
No
TTL Output
Yes
Secondary Output
No
Memory Support
SDRAM
MCU
External
CCFL/LED Controller
CCFL & LED
Touch-screen Controller
No
Temperature Range
See Datasheet
Recommended for new designs
No
Related Videos
Featured Design Resources
Key Differences in TW884x Family
| Product | Input Types | ADC Input Freq. (MHz) |
Max Output Resolution |
Panel Output |
SoC Output |
Pkg Type |
Technical Highlights |
|||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CVBS | Comb Filter |
S-Video | Analog RGB/YPbPr |
Digital RGB/YCbCr |
LVDS Open LDI |
|||||||
| TW8844 | Yes* | 4H | No | No | Yes 2x24-bit ports |
Yes 2CH |
27 | 1080p 1920x1080 |
TTL/TCON 2CH LVDS |
MIPI-CSI2 v1.1 |
156 Ld LQFP | 1080p panel support + MIPI-CSI2 output path, improved frozen detection |
| TW8845 | Yes* | 4H | No | No | Yes 2x24-bit ports |
Yes 2CH |
27 | 1080p 1920x1080 |
TTL/TCON 2CH LVDS |
Pseudo BT.656 |
156 Ld LQFP | 1080p panel support + BT656 output path, improved frozen detection |
| TW8836 | Yes* | 4H | Yes | Yes (1080p) | Yes 24-bit |
Yes 1CH |
148 | WXGA/720p 1366x768 |
TTL/TCON 1CH LVDS |
Pseudo BT.656 |
128 Ld LQFP | 720p panel support with LVDS I/O |
*Differential Supported