FN8645 Rev 5.00 Page 1 of 3
November 3, 2016
FN8645
Rev 5.00
November 3, 2016
TW8836
LCD Video Processor with Built-In Decoder, TTL/LVDS Inputs, MCU, OSD, and
TTL/LVDS Panel Interface
DATA SHORT
To request the full datasheet, please visit www.intersil.com/products/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.
Applications
•In-car display
• Pico projector and portable media player
• Portable DVD and DVR players
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 allow composite, S-video,
analog YPbPr, or RGB
• High quality adaptive 2D comb filter for NTSC/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
• Supports detection of Macrovision copy protection
YIN0 ~ 3
CIN0 ~ 1
VIN0 ~ 1
SOY0 ~ 1
Y
C
V
YOUT
SOY
Slicer
HSYNC
10-bit
ADC
LLPLL
2D-Comb
Decoder
DTV
LVDS
DTV I/F
LVDS-RX
CSC
Dither
Gamma
Measurement
LVDS
TX
BT.656
TCON I/F
TTL 24bit
Serial RGB
LVDS
OSC
SSPLL2 Touch Screen
Controller
X+/-, Y+/-
AUX0 ~ 3
SPI Flash
SPI
Interface
MCU
I2C
Host Interface
GPIO
Interrupt
VSYNC
LVR
DVDD
Font OSD
SPI OSD
I N M U X
TCON
M U X
BT.656
Encoder
LLCLK
PCLK
GPLL
R-C
OSC
Diagnostic
SSPLL1
MCUCLK
Scaler
2D-DI
Image Enhancer
Timing Gen.
Down
Scaler
Sharing Pins
CVBS
S-Video
Component
ARGB
FIGURE 1. FUNCTIONAL BLOCK DIAGRAM
TW8836
FN8645 Rev 5.00 Page 2 of 3
November 3, 2016
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
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
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
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)
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
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
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
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 I2C
• Supports 24-bit addressing
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
Touch Screen Controller
• Built-in 4-wire resistive touch screen
•12-bit ADC
• 4-channel auxiliary input
Miscellaneous
• Supports Fast mode I2C 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
FN8645 Rev 5.00 Page 3 of 3
November 3, 2016
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 may modify the circuit design and/or specifications of products at any time without notice, provided that such
modification does not, in Intersil's sole judgment, affect the form, fit or function of the product. Accordingly, the reader is cautioned to verify that datasheets 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
For additional products, see www.intersil.com/en/products.html
TW8836
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