DATASHEET
To request the full datasheet, please visit
www.intersil.com/products/TW8819
Ultra Low Cost LCD Controller
TW8819
Description
The TW8819 is an ultra low cost highly integrated
LCD controller. It combines a high quality 2D comb
NTSC/PAL/SECAM video decoder, high quality scaler,
Font based OSD engine, and image enhancement
functions. It also supports panoramic scaling for
conversion to wide screen display. The TW8819
supports analog composite video inputs and the
output supports a wide variety of digital LCD panel
types.
Supports digital panels up to WXGA+ (1366x768)
resolution
Supports serial (8-bit) RGB panels
Timing Controller (TCON)
Supports programmable timing interface signals for
control
Column (source) driver/row (gate) driver
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 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
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
48 pin WFQFN package (Wettable Flank QFN
available)
Applications
Rear camera display
Video door phone
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
1
FN8597.1
May 8, 2014
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
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TW8819
TW8819 Functional Block Diagram
YIN0+ / YIN0
YIN0- / YIN1
YIN2+ / YIN2
AAF
10bit
ADC
2D Comb
Decoder
Scaler
Image Enhancer
Timing Gen.
CSC
Gamma
Dither
OUT
MUX
TCON
TTL 24/18bit
Serial RGB
TCON Signals
MU X
YIN2- / YIN3
Font OSD
Diagnostic
IRQ
Spread
Spectrum
PLL
OSC
Registers
PWM1,2
GPIO1~4
MPO/IRQ
I2C
For additional products, see
www.intersil.com/product_tree
Intersil products are manufactured, assembled and tested utilizing ISO9001 or TS16949 quality systems as applicable
noted in the quality certifications found at
http://www.intersil.com/en/support/qualandreliability.html
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any
time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is
believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or
other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its
subsidiaries.
For information regarding Intersil Corporation and its products, see
http://www.intersil.com
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