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PDF TW8816 Data sheet ( Hoja de datos )
| Número de pieza | TW8816 | |
| Descripción | LCD Flat Panel Processor | |
| Fabricantes | TECHWELL | |
| Logotipo |  |
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TW8816 - LCDFlatPanelProcessor with built-in MCU,
NTSC/PAL/SECAM Decoder, T-CON andAnalog RGB Support
Techwell Confidential. Information may change
without notice
Disclaimer
This document provides technical information for the user. Techwell Inc. reserves the right to modify the
information in this document as necessary. The customer should make sure that they have the most recent data
sheet version. Techwell Inc. holds no responsibility for any errors that may appear in this document. Customers
should take appropriate action to ensure their use of the products does not infringe upon any patents. Techwell
Inc. respects valid patent rights of third parties and does not infringe upon or assist others to infringe upon such
rights.
TECHWELL, INC.
www.DataSheet.in
1
REV. A
05/15/2008
1 page  
TW8816
TFT Flat Panel Processor with Video Decoder, MCU and TCON
Built-in Microcontroller
• Supports external SPI Interface and I2C Master
interface with GPIO
• Supports 8 MCU GPIO
• Supports UART interface with GPIO
• Support IR or interrupt with GPIO
CCFL Controller
• Single channel CCFL controller based on push-
pull architecture
• Lamp fault monitoring- Lamp Open, Lamp Over-
current, Failure to Strike and Over-voltage
• Programmable Lamp Frequency to move EMI
spurs out of band
• Analog or digital brightness control. 300:1
dimming range with the digital brightness
control.
• Low power stand-by mode
OSD
• Built-in OSD controller with integrated character
202 ROM and programmable 227 RAM fonts.
• Multi-window (4) OSD support with color pallet
• 16 font & window colors available
• Support OSD overlay with alpha blending
Image Enhancement
• Programmable hue, brightness, saturation, and
contrast controls.
• Sharpness control with vertical peaking
• Programmable CTI control
• Built-in de-interlacing engine
• Independent RGB gain and offset controls
• Panorama / Water-glass scaling
• YCbCr hue adjustment
• Programmable Gamma correction tables
• Programmable favorite color enhancement
Power Management
• Supports Panel power sequencing.
• Supports DPMS for monitor power
management.
• 1.8 / 3.3 V operation
Timing Controller (TCON)
• Support programmable interface signals for
control
• Column (source) driver / row (gate) driver
Miscellaneous
• Supports 2-wire serial bus interface
• Spread spectrum PLL
• Low-speed ADC for KEY scan
• Programmable panel VCOM offset control
• 5V tolerant I/O
• Power-down mode
• Typical power consumption < 500mW
• Single 27MHz crystal
TECHWELL, INC.
www.DataSheet.in
5
REV. A
05/15/2008
5 Page 
TW8816
TFT Flat Panel Processor with Video Decoder, MCU and TCON
Table 1. Video Input Formats Supported by the TW8816
Format
NTSC-M
NTSC-Japan (1)
PAL-B, G
PAL-D
PAL-H
PAL-I
PAL-M
PAL-CN
SECAM
Lines
525
525
625
625
625
625
525
625
625
Fields
60
60
50
50
50
50
60
50
50
PAL-60
NTSC (4.43)
525 60
525 60
Fsc
3.58 MHz
3.58 MHz
4.43 MHz
4.43 MHz
4.43 MHz
4.43 MHz
3.58 MHz
3.58 MHz
4.406MHz
4.250MHz
4.43 MHz
4.43 MHz
Country
U.S., many others
Japan
Many
China
Belgium
Great Britain, others
Brazil
Argentina
France, Eastern Europe,
Middle East, Russia
China
Transcoding
Notes: (1). NTSC-Japan has 0 IRE setup.
Component Processing
The TW8816 adjusts brightness by adding a programmable value (in register BRIGHTNESS) to the Y
signal. It adjusts the picture contrast by changing the gain (in register CONTRAST) of the Y signal.
The TW8816 also provides a sharpness control function through control registers. It provides the control in
16 steps up to +12db. The center frequency of the enhancement curve is selectable by software control. It
also provides a high frequency coring function to minimize the amplification of high frequency noise. To
further enhance the image, a programmable vertical peaking function is provided for up to +6db of
enhancement.
The TW8816 provides the Color Transient Improvement function to further enhance the image quality.
The CTI enhance the color edge transient without any hue distortion.
The color saturation can be adjusted by changing the gain of Cb and Cr signals for all NTSC, PAL and
SECAM formats. The Cb and Cr gain can be adjusted independently for flexibility.
Digital Input Support
In addition to analog inputs, the TW8816 has a 24-bit digital input for YCbCr or RGB data. External ADCs
can be used to make the conversion from analog component inputs to digital YCbCr or RGB to support of
DTV 480p, 720p, and 1080i, or PC VGA inputs from QVGA to WXGA. The input includes VSYNC,
HSYNC, pixel clock and the optional data qualifier. For interlaced video, the timing relationship between
VSYNC and HSYNC determine the field flag. The optional data qualifier is needed when input video data
is not continuously valid within a line.
TECHWELL, INC.
www.DataSheet.in
11
REV. A
05/15/2008
11 Page | ||
| Páginas | Total 70 Páginas | |
| PDF Descargar | [ Datasheet TW8816.PDF ] | |
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