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TW8835 반도체 회로 부품 판매점

LCD Video Processor



Intersil 로고
Intersil
TW8835 데이터시트, 핀배열, 회로
DATASHEET
LCD Video Processor with Built-In Decoder, MCU, OSD,
TCON and Analog RGB Input Support
TW8835
The TW8835 incorporates many of the features required to
create multipurpose in-car LCD display system in a single
package. It integrates a high quality 2D comb
NTSC/PAL/SECAM video decoder, triple high speed RGB ADCs,
high quality scaler, versatile OSD and high performance MCU.
Its image video processing capability includes arbitrary
scaling, panoramic scaling, image mirroring, image
adjustment and enhancement, black and white stretch, etc. On
the input side, it supports a rich combination of CVBS, S-video,
component video, analog RGB as well as digital YCbCr/RGB
inputs. On the output side, it supports a variety of digital panel
types with its built-in timing controller. The integration of
additional touch screen controller, LED driver controller, PWM
and MCU makes this a versatile solution for many portable
applications.
Applications
• In-car display
• Portable DVD and DVR players
• Portable media 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 both NTSC and PAL
inputs
• PAL delay line for color phase error correction
• Image enhancement with 2D dynamic peaking and CTI
• Digital subcarrier PLL for accurate color decoding
• Digital horizontal PLL and advanced synchronization
processing for VCR playback and weak signal performance
• Programmable hue, brightness, saturation, contrast,
sharpness
• High quality horizontal and vertical filtered down scaling
with arbitrary scale down ratio
SPI
YIN0~2
CIN0~1
VIN0~1
DTVCLK
DTVHS, VS
DTVDE
DTVD[23:0]
2D-COMB
VIDEO
DECODER
SPI
OSD
MCU
FONT OSD
TRIPLE
ADCs
DTV
I/F
INPUT
CONTROLLER
SCALER/
IMAGE
ENHANCE
OUTPUT
FORMATTER
TCON
LED/
VCOM
CONTROL
2-WIRE
SERIAL
BUS
FLAT PANEL OUT
TCON SIGNALS
SERIAL DATA
BT.656 OUTPUT
I2C_SDAT
I2C_SCLK
January 4, 2016
FN7864.4
FIGURE 1. FUNCTIONAL BLOCK DIAGRAM
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2015, 2016. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.


TW8835 데이터시트, 핀배열, 회로
TW8835
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
• Supports RGB.565 + BT.656 at the same time
• Supports input resolution up to 1080p
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 panel up to XGA resolution
• Supports serial (8-bit) RGB panel
Font Based On-Screen Display
• Four window font OSD with bordering/shadow
• 10kB programmable font RAM and 512 display RAM
• 1/2/3/4 bits/pixel
• Supports variable width (12/16), height (2~32)
SPI Flash Based On-Screen Display
• Nine bitmap based OSD windows through SPI
• Supports 4/6/8 bits/pixel
• Supports RLE decompression for one window
• Supports overlapping between windows
Image Processing
• High quality scaler with both up/down and panorama 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
• Support power save mode with 32k internal clock
• ISP (in system programming) with internal boot ROM
Decoder Output
• Independent BT.656 decoder output
Touch Screen Controller
• Built-in 4-wire resistive touch screen
• 12-bit ADC
• 4-channel auxiliary input
Miscellaneous
• Supports 2-wire serial bus interface
• Built-in single LED backlight controller
• Built-in VCOM DC voltage
• Built-in VCOM AC
• Built-in DC/DC converter
• Up to 4 PWMs
• GPIOs
• 1.8/3.3V operation
• Power-down mode
• Single 27MHz crystal
• 128 pin LQFP and 144 pin TFBGA package
For additional products, see www.intersil.com/en/products.html
Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as 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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FN7864.4
January 4, 2016




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