TW8830

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LCD Controller

Product Status: 量産中

OVERVIEW

The TW8830 incorporates many of the features required to create multi-purpose a Video Door phone intercom LCD display system in a single package. It integrates a high quality 2D comb NTSC/PAL/SECAM video decoder, triple high speed RGB ADCs, high quality scaler, and images enhancement functions which include Black and White Stretch and Gamma Correction. It also supports panoramic scaling for conversion to wide screen display. The TW8830 supports a rich combination of inputs: CVBS, S-video, analog RGB as well as digital BT.656. On the output side, it supports a wide variety of digital 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
  • 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
  • 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
  • High quality horizontal and vertical filtered down scaling with arbitrary scale-down ratio

    ANALOG RGB INPUTS
  • Triple high speed 10-bit ADCs with clamping and programmable gain amplifier.
  • SOG and H/V sync support for YPbPr or RGB input
  • Built-in line locked PLL with sync separator
  • Supports analog input resolution up to 1080i or WXGA DIGITAL INPUTS SUPPORT
  • Supports BT.656 video formats

    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 panel up to WVGA/SVGA resolution
  • Supports Serial (8-bit) RGB panel

    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
  • Panorama / Water-glass scaling
  • Programmable 8-bit Gamma correction for each color
  • Operated in Frame Sync mode
  • Black/White Stretch

    CLOCK GENERATION
  • Spread spectrum clock
  • Modulation frequency and spread width are selectable

    TIMING CONTROLLER (TCON)
  • Supports programmable timing interface signals for control
  • Column (source) driver / row (gate) driver MCU
  • Industry standard 8052 based
  • Code fetch from external SPI flash memory
  • 512B 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 2 channel Auxiliary ADC input
  • Single 27MHz crystal
  • 80-pin LQFP package

PARAMETRICS

Parameters
TW8830
Basic Information
Production Status
量産中
CVBS入力
Yes
Sビデオ入力
Yes
YPbPr入力
Yes
SCART入力
No
アナログRGB入力
Yes
デジタルRGB/Y CbCr入力
BT.656 only
ADC入力周波数 (MHz)
80
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
2D
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 Pallette
TCON出力
Digital
デュアルビュー出力
No
LVDS入力
No
LVDS出力
No
TTL出力
Yes
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

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