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DATASHEET

To request the full datasheet, please visit www.intersil.com/products/tw8809

Low Cost Video Format Converter

TW8809

The TW8809 is a low cost video format converter that can take

either analog CVBS or 24-bit digital RGB format video and

output these signals in ITU-R.656 format. The video sources

can be scaled and deinterlaced, so that the ITU-R BT.656

output is already formatted to the desired resolution and in

progressive format. In addition, the TW8809 has built-in OSD

and image enhancement capabilities.

Applications

• Rear seat entertainment

• Radio head unit

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

• Selectable differential or single ended CVBS input

• Supports two differential or 4 single-ended CVBS inputs

• 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

Digital Input

• Supports YCbCr/RGB 24-bit input

• Supports both BT.656 and BT.601 video formats

• Supports input resolutions up to 720p

Digital Output

• ITU-R BT.656 compatible YCbCr (4:2:2) output format

• Progressive ITU-R BT.656 output format for both interlaced

and progressive inputs

• Output resolution up to SVGA (pseudo BT.656)

On Screen Display

• 256 font RAM and 512 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 deinterlacing 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

Power Management

• Supports functional based independent power-down

• 1.8/3.3 V operation

Miscellaneous

• Short to battery detection test

• Short to ground detection test

• Supports 2-wire serial bus interface

•Single 27MHz crystal

• 56 lead QFN (with wettable flanks)

October 14, 2014

FN8598.2

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

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