TW8820

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LCD Controller

Product Status: 量産中

OVERVIEW

The TW8820 incorporates many of the features required to create a multi-purpose Video Door phone intercom LCD display system in a single package. It integrates a high quality 2D comb NTSC/PAL/SECAM video decoder, high quality scaler, and image enhancement functions which include Black and White Stretch and Gamma Correction. It also supports panoramic scaling for conversion to wide screen display. TW8820 supports analog composite video input and the output supports a wide variety of digital LCD panel types with its built-in timing controller.

KEY FEATURES

    ANALOG VIDEO DECODER
  • NTSC (M, 4.43) and PAL (B, D, G, H, I, M, N, N combination), PAL (60), SECAM with automatic format detection
  • 10-bit ADC 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
  • High quality adaptive 2D comb filter for both NTSC and PAL inputs
  • 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 synchronization processing for VCR playback and weak signal performance
  • Programmable hue, brightness, saturation, contrast and sharpness

    TFT PANEL SUPPORT
  • Built-in programmable timing controller
  • Supports 3, 4, 6 or 8 bits per pixel up to 16.8 million colors with built-in dithering engine
  • Supports digital panels up to WVGA/SVGA resolution
  • Supports Serial (8-bit) RGB panels

    TIMING CONTROLLER (TCON)
  • Supports programmable timing interface signals for control
  • Column (source) driver / row (gate) driver

    ON SCREEN DISPLAY
  • 6912 byte programmable font RAM and 256 display RAM
  • Four windows font OSD with bordering / shadowing
  • 1/2/3/4 bits/pixel
  • Supports variable width (12/16), height (2~32)

    IMAGE PROCESSING
  • High quality scaler with both up/down and nonlinear scaling support
  • Panorama / Water-glass scaling
  • Built-in 2D de-interlacing function
  • Programmable hue, brightness, saturation, contrast and sharpness
  • Programmable cropping of input video and graphics
  • Independent RGB gain and offset controls
  • Programmable 8-bit Gamma correction for each color
  • Operates in Frame Sync mode
  • Black/White Stretch

    CLOCK GENERATION
  • Spread spectrum clock
  • Selectable Modulation frequency and spread width

    MCU
  • Industry standard 8052 based
  • Code fetch from external SPI flash memory
  • 512 byte XDATA memory
  • POWER MANAGEMENT
  • Supports functional based independent power down
  • 1.8 / 3.3 V operation

    MISCELLANEOUS
  • Supports 2-wire serial bus interface
  • Built-in Auxiliary ADC input
  • Single 27MHz crystal
  • 64 pin LQFP package

PARAMETRICS

Parameters
TW8820
Basic Information
Production Status
量産中
CVBS入力
Yes
Sビデオ入力
Yes
YPbPr入力
No
SCART入力
No
アナログRGB入力
No
デジタルRGB/Y CbCr入力
No
LVDS入力
No
MIPI-CSI2 input
No
コムフィルタ
2D
最大出力分解能
SVGA
認定レベル
Automotive
デインタレーサ
No
カラー強調
Yes
PIP
No
OSDタイプ
Font
OSDフォントROM
N/A
OSDフォントRAM
256
外部OSD
No
OSDカラー
16 Colors / 16-bit Palette
TCON出力
Digital
デュアルビュー出力
No
LVDS出力
No
TTL出力
Yes
Secondary Output
No
メモリサポート
No
MCU
Integrated
CCFL/LEDコントローラ
No
タッチスクリーンコントローラ
No
温度範囲
-40 to +85
Recommended for new designs
No

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