TW8830_14 Datasheet, PDF (1/2 Pages) Intersil Corporation – LCD Controller

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LCD Controller
TW8830
Description
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.
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
April 13, 2012
1
FN8280.0
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2012. All Rights Reserved
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