TW8823C

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TFT Flat Panel Controller with 3D Video Decoder, Triple ADCs, Dual PIP and 16-bit OSD Support

Product Status: Mass Production

OVERVIEW

The TW8823C incorporates many of the features required to create a multi-purpose in-car LCD display system into a single package. It integrates a high-quality 3D comb NTSC/PAL/SECAM video decoder, triple high speed RGB ADCs, high-quality scaler, bit-mapped OSD, triple DACs and image enhancement functions that include features such as Black and White Stretch and favorite color enhancement. It also supports panoramic scaling for conversion to wide screen display format. On the input side, it supports a rich combination of CVBS, S‑video, analog RGB, and digital YCbCr/RGB. On the output side, it supports both digital and analog panel types with its built-in timing controller and analog RGB output. In addition, the TW8823C supports LVDS type panels.

The TW8823C also has two PIP (Picture-in-Picture) engines that can display three display sources simultaneously in a single window. It also has a built-in bit-mapped OSD with 16-bit color depth and an acceleration function. It can also accept 18-bit external OSD inputs. In addition, TW8823C has a built-in high‑performance microcontroller with cache. Its SPI interface supports various serial flash types.

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
    • Two 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 either composite or S-video input
    • 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 synchronization processing for VCR playback and weak signal performance.
    • Programmable hue, brightness, saturation, contrast, 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

    Dual Digital Inputs Support

    • Dual channel digital inputs support with following combination:
      • 1-channel 18/16-bit inputs and 1-channel 8-bit inputs
      • 1-channel 24-bit digital RGB/YCbCr inputs
    • Supports both 656 and 601 video formats
    • Allows connection to external HDMI receiver

    Built-In Microcontroller

    • Built-in 8052 MCU up to 72MHz clock
    • Built-in code cache memory to enhance CPU performance
    • Supports Single/Dual/Quad IO SPI Flash with 24-bit/32-bit addressing
    • System programming through UART
    • Supports SPI DMA Read/Write to OSD memory
    • Supports I2C Master interface with GPIO
    • Supports two UART interface up to 115200bps and 8 bytes RX FIFO
    • Supports IR receiver and interrupt output
    • Supports 24-bit contiguous addressing mode

     

     

    APPLICATIONS

  • In-car display controller
  • Portable DVD and DVRs players
  • Portable media player

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
TW8823C
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
Yes
模拟RGB输入
Yes
模数转换器输入频率 (MHz)
108
数字RGB/Y CbCr输入
2 Ports
LVDS输入
No
MIPI-CSI2 input
No
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 (16 bit)
OSD字体ROM
N/A
外部OSD
Analog,Digital 18-bit & PIP overlay
OSD颜色
65K Color/24-Bit Palette
TCON输出
Digital & Analog
双视图输出
No
LVDS输出
Yes
TTL输出
Yes
Secondary Output
No
内存支持
DDR
MCU
Integrated
CCFL/LED 控制器
CCFL & LED
触摸屏控制器
Yes
温度范围
-40 to +85
Recommended for new designs
No

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