TW8811C

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In-Car LCD Display Processor

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 -40°C to +85°C 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.

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

  • 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

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
TW8811C
Basic Information
生产状态
Mass Production(*)
CVBS输入
Yes
S-视频输入
Yes
YPbPr输入
Yes
SCART输入
No
模拟RGB输入
Yes
数字RGB/Y CbCr输入
24 bit
模数转换器输入频率 (MHz)
108
梳状滤波器
3D / 2D
最大输出分辨率
WXGA
资质级别
Automotive
去隔行
2D
颜色增强
Yes
PIP
Yes
OSD类型
Graphic (8 bit)
OSD字体ROM
N/A
外部OSD
Analog, Digital 18-bit & PIP overlay
OSD颜色
256 Color/ 24-Bit Palette
TCON输出
Digital & Analog
双视图输出
No
LVDS输入
No
LVDS输出
No
TTL输出
Yes
内存支持
SDRAM
MCU
External
CCFL/LED 控制器
CDFL & LED
触摸屏控制器
No
温度范围
-40 to +85

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