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FN7864.2

May 6, 2014

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To request the full datasheet, please visit www.intersil.com/products/TW8835

DATASHEET

LCD Video Processor with Built-in Decoder, MCU, OSD,

TCON and Analog RGB Input Support

TW8835

The TW8835 incorporates many of the features

required to create multi-purpose in-car 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, versatile OSD, and

high performance MCU. Its image video processing

capability includes arbitrary scaling, panoramic scaling,

image mirroring, image adjustment and enhancement,

Black and White Stretch, etc. On the input side, it

supports a rich combination of CVBS, S-video,

component video, analog RGB as well as digital

YCbCr/RGB inputs. On the output side, it supports a

variety of digital panel types with its built-in timing

controller. The integration of additional touch screen

controller, LED driver controller, PWM and MCU makes

this a versatile solution for many portable applications.

Applications

 In-car display

 Portable DVD and DVRs players

 Portable media player

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 allows composite,

S-video, analog YPbPr or RGB

 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,

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 input resolution up to 1080p

Digital Inputs Support

 Supports both BT656 and 601 video formats

 Supports YCbCr/RGB 24-bit input

 Supports RGB 565 + BT 656 at the same time

 Supports input resolution up to 1080p

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 XGA resolution

 Supports Serial (8-bit) RGB panel

Font Based On Screen Display

 Four window font OSD with bordering / shadow

 10KB programmable font RAM and 512 display RAM

 1/2/3/4 bits/pixel

 Supports variable width (12/16), height (2~32)

SPI Flash Based On Screen Display

 Nine bitmap based OSD windows through SPI

 Supports 4/6/8 bits/pixel

 Supports RLE decompression for one window

 Supports overlapping between windows