TW8834 Datasheet, PDF (1/2 Pages) Intersil Corporation – LCD Video Processor with Built-in Decoder, LVDS and TTL Inputs, BT.656 Output, and LVDS Panel Interface

DATASHEET
To request the full datasheet, please visit www.intersil.com/products/TW8834
LCD Video Processor with Built-in Decoder, LVDS and
TTL Inputs, BT.656 Output, and LVDS Panel Interface
TW8834
The TW8834 is a highly integrated LCD video processor
that incorporates many of the key features required to
create a multi-purpose LCD display system into a single
package. This includes a high quality 2D comb
NTSC/PAL/SECAM video decoder which supports both
single-ended and differential CVBS signals, an LVDS and
TTL digital input interface, high quality scaler and
deinterlacer, a font OSD engine, and LVDS, TTL or TCON
output panel interfaces. The TW8834 can support input
resolutions up to 1080p and can drive LCD panels at
resolutions up to 1366 x 768. The TW8834’s video
processing capability includes arbitrary H/V scaling,
panoramic scaling, image mirroring, image adjustment
and enhancement, black and white stretch, etc. This
device can support fast boot system requirements and
provides stability and reliability to the system due to the
fact that it is a hardwired solution that can sync to the
video source and display an image on the LCD in less
then 0.5 seconds from start up. The feature set and
versatility of this device makes it an ideal solution for
in-car LCD display applications.
Applications
 Automotive display systems
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 CVBS channel
 Programmable white peak control for the 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/CTI
 Digital subcarrier PLL for accurate color decoding
 Programmable hue, brightness, saturation, contrast,
sharpness
 Selectable differential or single-ended CVBS input
 Digital horizontal PLL and advanced synchronization
processing for VCR playback and weak signal
performance
 High quality horizontal and vertical filtered down
scaling with arbitrary scale down ratio
 Up to 3CH differential or 6CH single ended CVBS input
Digital Inputs Support
 Supports both BT.656 and 601 video formats with
H/VSYNC
 Supports RGB 24-bit input up to 1080p resolution
 Single channel LVDS (open LDI) input up to 720p
resolution
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 (TTL) or single channel LVDS
panels up to WXGA (1366 x 768) resolution, 85MHz
 Supports serial (8-bit) RGB panel
Timing Controller (TCON)
 Supports programmable interface signals for control
 Column (source) driver/row (gate) driver
BT.656 Output
 Independent ITU-R 656 compatible YCbCr(4:2:2)
output format
 ITU-R 656 output generated from decoder, LVDS,
DRGB and post scaling path
 Max 148.5MHz with 3.3V, 74MHz with 1.8V
Font Based On Screen Display
 Four window font OSD with bordering/shadow
 6912B programmable font RAM and 512 display RAM
 1/2/3/4 bits/pixel
 Supports variable width (12/16), height (2~32)
Image Processing
 High quality scaler with both up/down and
panorama/water-glass scaling support
1
FN8447.2
September 25, 2014
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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