WT8876S数据手册Weltrend中文资料规格书

描述 Description

The WT8876S is a highly integrated video display controller for medium and small size LCD display applications, such as car TV (connect to Car PC), and other applications with R/G/B input. It has built-in 3-channel video ADC, video decoder, scaler, de-interlacer, TCON, 8-bit MCU, OSD, PWM, and DC-to-DC converter functions. WT8876S has 18-bit and 24-bit digital RGB output interface and LVDS output for digital LCD panel application.

特性 Features

●Analog input ports
 -6 analog inputs
 -Support CVBS, S-Video, and YPbPr input
 -Video input resolution in 480i/p, 576i/p, 720p and 1080i
 -Support PC RGB input
 -RGB input resolution in 640x480, 800x600, 1024x768, 1280x800 and 1280x1024@60Hz
 -Support RGB CSYNC, SOG, Hsync and Vsync
 -Auto white balance, auto-gain/auto-phase adjustment
 -3-channel low-power 10-bit ADCs integration for YPbPr and RGB support up to 108Mhz
●Digital input ports
 -8-bit 4:2:2 ITU-BT.656 or BT.601 interface
 -16-bit 4:2:2 ITU-BT.656 or BT.601 interface
 -16-bit RGB-565 interface
●LCD panel interfaces
 -Support 18-bit and 24-bit digital panel, Serial RGB panel
 -Support single 8-bit LVDS panel output up to 1366x768
 -Support resolution: 640x480, 800x480, 800x600, 1024x768 and 1366x768 (digital/LVDS output)
 -Programmable timing controller for different type of panels
 -Programmable gamma table for panel compensation
●2D video decoder
 -10-bit ADC
 -Supports CVBS, S-video and RGB input
 -Decodes NTSC (M, Japan, 4.43), PAL (B, G, D, H, I, Nc), and SECAM
 -Multi-standard adaptive 2D comb filter
 -Safe Hsync, Vsync and field signal outputs when VCR trick mode
 -Auto detection and decodes Macrovision copy protection
 -Chroma Transient Improvement (CTI)
 -Luma Transient Improvement (LTI), edge/sharpness improvement
 -Luma Coring noise reduction
●Display format conversion
 -Programmable horizontal and vertical zoom ratio
 -Support no-linear scaling for 4:3 to 16:9
 -Convert interlaced input to progressive
●Luminance and chrominance adjustments
 -Contrast adjustment with black/white level stretch
 -Brightness adjustment
 -Sharpness adjustment
 -Hue adjustment
 -Saturation adjustment
 -Flesh tone adjustment
●OSD
 -Character based OSD
 -Font size: 16x18 dots
 -Font ROM: 512 single color fonts
 -Display RAM: 1024 x 24 bits (display up to 1024 characters)
 -User-font RAM: 4096 x 16 bits (up to 226 single color fonts)
 -Support 3-bit multi-color font
 -Border effect of character
 -Two display windows
 -Programmable background window
 -Support alpha blending
 -Support blinking effect
 -Support fade in/out effect
●MCU
 -Built-in turbo 8051 MCU
 -Data memory: 256 + 768 bytes RAM
 -Support external program memory with serial flash memory via 4-wire interface
 -Support external MCU mode
●10-bit ADC for keypad scanning
●Multiple communication interfaces
 -Two slave mode I2C interfaces, up to 400 kHz
 -Interface for ISP, ICE and other I2C master
 -Support dual standard UART, one of the UART can be defined for ISP/ICE channel
 -Support Infra-Red remote control
●Four PWM outputs including one low frequency PWM
●Charge pump circuits for VGH and VGL
●DC-DC converter supports LED backlight with brightness control
●General purpose I/Os
●Spread spectrum PLL for panel clock
●Built-in self test pattern generator
●24MHz crystal oscillator and support clock output for external MCU
●Support multiple saving modes
 -Standby mode: all circuits can be powered down except MCU
 -Off mode: all circuits power down, MCU is waked up by interrupt
●Operating temperature range: -40℃ to +85℃
●Package type:
 -128-pin LQFP, 14mm(L) x 14mm(W) x 1.4mm(H)
 -Green package available