DATASHEET
To request the full datasheet, please visit
www.intersil.com/products/TW8836
LCD Video Processor with Built-in Decoder, Triple ADCs,
LVDS and TTL Inputs, MCU, OSD, TCON and LVDS Panel
Interface
TW8836
The
TW8836
is a highly integrated LCD video processor that
incorporates many of the features required to create a
multipurpose LCD display system into a single package. This
includes a high quality 2D comb NTSC/PAL/SECAM video
decoder, triple high speed RGB ADCs, an LVDS and TTL digital
input interface, high quality scaler and deinterlacer, as well as a
versatile OSD, high performance MCU and LVDS or TTL output
panel interface. The TW8836 can support input resolutions up
to 1080p and can drive LCD panels at resolutions up to
1366x768. The TW8836’s video processing capability includes
arbitrary H/V scaling, panoramic scaling, image mirroring,
image adjustment and enhancement, black and white stretch,
etc. The feature set and versatility of this device makes it an
ideal solution for in-car LCD display applications, as well as
portable display applications such as Pico Projectors.
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 CVBS channel
• Programmable white peak control for the Y or CVBS channel
• Software selectable analog inputs allows composite,
S-video, analog YPbPr or RGB
• 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 2CH differential or 4CH single ended CVBS input
Applications
• In-car display
• Pico projector and portable media player
• Portable DVD and DVR players
YOUT
YIN0 ~ 3
GPLL
Y
2D-Comb
Decoder
MU X
10-bit
ADC
CIN0 ~ 1
C
V
Down
Scaler
BT.656
Encoder
BT.656
CVBS
S-Video
Component
ARGB
VIN0 ~ 1
Diagnostic
Font OSD
Timing Gen.
Image Enhancer
SOY0 ~ 1
HSYNC
VSYNC
DTV
SOY
Slicer
IN M U X
Dither
Gamma
Scaler
2D-DI
LLPLL
LLCLK
TTL 24bit
Serial RGB
CSC
Sharing Pins
SPI OSD
TCON
DTV I/F
LVDS-RX
SSPLL1
SSPLL2
LVR
R-C
OSC
OSC
PCLK
MCUCLK
Host Interface
MCU
TCON I/F
LVDS
LVDS
Measurement
LVDS
TX
SPI
Interface
Touch Screen
Controller
X+/-, Y+/-
AUX0 ~ 3
DVDD
I2C
GPIO
Interrupt
SPI Flash
FIGURE 1. FUNCTIONAL BLOCK DIAGRAM
April 20, 2015
FN8645.2
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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All other trademarks mentioned are the property of their respective owners.
TW8836
Features
(Continued)
Analog RGB Inputs
• Triple high speed 10-bit ADCs with clamping and
programmable gain amplifier
• SOG and H/VSYNC support for YPbPr or RGB input
• Built-in line locked PLL with sync separator
• Supports input resolution up to 1080p
Clock Generation
• Spread spectrum profile based on triangular modulation with
center spread
• Programmable modulation frequency and spread width
Timing Controller (TCON)
• Supports programmable interface signals for control
• Column (source) driver/row (gate) driver
Digital Inputs Support
• Supports both BT.656 and 601 video formats
• Supports YCbCr/RGB 24-bit input (bidirectional) up to 1080p
resolution
• Single channel LVDS input up to 720p resolution
• Supports RGB 565 + BT.656 at the same time
MCU
•
•
•
•
•
•
•
Industry standard 8052 based
Code fetch from external SPI flash memory
256B code cache
2k XDATA memory
Supports power save mode with 32k internal clock
ISP (In System Programming) through I
2
C
Supports 24-bit addressing
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 (1366x768) resolution, 85MHz
• Supports serial (8-bit) RGB panel
BT.656 Output
• Independent ITU-R 656 compatible YCbCr(4:2:2) output format
• Supports progressive ITU-R 656 output format for both
interlaced and progressive inputs
• ITU-R 656 output generated from decoder, ARGB, DRGB and
post scaling path
Font Based On Screen Display
•
•
•
•
Eight window font OSD with bordering/shadow
10kB programmable font RAM and 512 display RAM
1/2/3/4 bits/pixels
Supports variable width (12/16), height (2~32)
Touch Screen Controller
• Built-in 4-wire resistive touch screen
• 12–bit ADC
• 4 channel auxiliary input
SPI Flash Based On Screen Display
• 9 bitmap based OSD windows in 2 layers through SPI with
alpha blending between layers
• Supports 4/6/8 bits/pixels
• Supports RLE decompression for two windows
Miscellaneous
•
•
•
•
•
•
•
•
•
•
•
Supports Fast mode I
2
C interface up to 400kHz
Short diagnostics:
Short-to-battery
Short-to-ground
Up to 4 PWMs
GPIOs
1.8V/3.3V internal operation
1.8V I/O support
Power-down mode
Single 27MHz crystal
128 Ld LQFP with exposed thermal pad and 172 ball TFBGA
package
• TW8836AT-LB2-GE is AEC-Q100 qualified
Image Processing
• High quality scaler with both up/down and
panorama/water-glass scaling support
• Built-in 2D deinterlacing function
• Programmable brightness, contrast, saturation, hue and
sharpness
• Programmable color transient improvement control
• Supports programmable cropping of input video and graphics
• Independent RGB gain and offset controls
• DTV hue adjustment
• Programmable 8-bit gamma correction for each color
• Black/white stretch
For additional products, see
www.intersil.com/en/products.html
Intersil products are manufactured, assembled and tested utilizing ISO9001 or TS16949 quality systems as applicable
noted in the quality certifications found at
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
www.intersil.com
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