TW8820 Datasheet, PDF (1/2 Pages) Intersil Corporation – LCD Controller

DATASHEET
LCD Controller
To request the full datasheet, please visit www.intersil.com/products/TW8820
TW8820
Description
The TW8820 incorporates many of the features required
to create a multi-purpose Video Door phone intercom
LCD display system in a single package. It integrates a
high quality 2D comb NTSC/PAL/SECAM video decoder,
high quality scaler, and image enhancement functions
which include Black and White Stretch and Gamma
Correction. It also supports panoramic scaling for
conversion to wide screen display. TW8820 supports
analog composite video input and the output supports a
wide variety of digital LCD panel types with its built-in
timing controller.
TIMING CONTROLLER (TCON)
 Supports programmable timing interface signals for
control
 Column (source) driver/row (gate) driver
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)
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
 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
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 panels up to WVGA/SVGA resolution
 Supports Serial (8-bit) RGB panels
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
 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
MCU
 Industry standard 8052 based
 Code fetch from external SPI flash memory
 512 byte XDATA memory
POWER MANAGEMENT
 Supports functional based independent
 Power-down
 1.8/3.3V operation
April 24, 2014
1
FN8279.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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