描述 Description

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.

特性 Features

? 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 input
? ?
? 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

應(yīng)用 Application

? Navigation system
? In dash DVD
? Rear-seat/head-mount display
? Automotive TV