TW8823C

Request Full Datasheet

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

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 which include Black and White Stretch, favorite color enhancement, etc. 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 as well as 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

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
TW8823C
Production Status
Mass Production
CVBS Input
Yes
S-Video Input
Yes
YPbPr Input
Yes
SCART Input
Yes
Analog RGB Input
Yes
Digital RGB/Y CbCr Input
2 Ports
ADC Input Frequency (MHz)
108
Comb Filter
3D / 2D
Max Output Resolution
WXGA
Qualification Level
Automotive
De-Interlacer
2D
Color Enhancement
Yes
PIP
Yes
OSD Type
Graphic (16 bit)
OSD Font ROM
N/A
External OSD
Analog,Digital 18-bit & PIP overlay
OSD Colors
65K Color/24-Bit Palette
TCON Output
Digital & Analog
Dual View Output
No
LVDS Input
No
LVDS Output
Yes
TTL Output
Yes
Memory Support
DDR
MCU
Integrated
CCFL/LED Controller
CCFL & LED
Touch-screen Controller
Yes
Temperature Range
-40 to +85

Confirm below disclaimers

Input Renesas account name and password