NOT RECOMMENDED FOR NEW DESIGNS
RECOMMENDED
the full datasheet, please visit
www.intersil.com/products/TW8804
REPLACEMENT PART
To request
TW8835 (Not Pin Compatible)
DATA SHORT
FN7756
Rev.0.00
February 1, 2011
TW8804
LCD Flat Panel TV/PC Monitor Controller with built-in NTSC/PAL/SECAM
Decoder and Analog RGB/FB Input
The TW8804 LCD Flat Panel Controller is a low cost high
quality TFT panel controller with an embedded
NTSC/PAL/SECAM TV decoder. This unique level of mixed
signal integration enables the panel to be used as a
stand-alone analog TV. An integrated YPbPr/RGB component
input allows direct connection to DVD, PIP and TTX sources.
Separate digital inputs allow it to be used as a high quality
computer monitor when combined with additional ICs. It
incorporates easy-to-operate and powerful features in a single
package for LCD TV,multi-purpose LCD Monitor, Portable DVD
Players and Car Display Entertainment Systems.
The TW8804 contains all the logic required to convert
standard TV, DTV, and PC monitor signals to the digital control
and data signals required to drive various TFT panel types. It
supports TFT panel resolutions up to 1280 by 1024
(SXGA/WXGA) with either 1 or 2-pixel/clock formats.
The chip accepts CVBS (composite) analog input or S-video
analog input or YPbPr input for use as a video monitor. Up to
four physical CVBS inputs or one S-video input or one
component input can be connected synchronously with
component (RGB or YPbPr) input via fast blanking and
switched internally under external microprocessor control.
The integrated analog front-end contains six ADCs with five
clamping circuits and one Automatic Gain Control (AGC) circuit
to minimize external component count. It employs a 2/4H, 5-
line adaptive comb filter and proprietary Y/C processing
technologies to produce exceptionally high quality pictures.
The chip's internal logic synchronizes the panel frame rate to
the incoming input frame rate. A high quality image-scaling
engine is used to convert the lower resolution formats or high
resolution DTV formats to the output panel resolution. An
internal de-interlacing engine also allows interlaced video to be
supported.
On Screen Display is supported through either external OSD
chip or onchip OSD RAM for maximum flexibility. A Closed
Caption decoder is built in. The TW8804 also accepts a 24 bit
digital RGB input from external PanelLinkTM receiver or ADCs
for use as computer monitor. In addition, it accepts 8/16/24
bits digital YCbCr input for use with external ADCs for use as a
DTV monitor.
The TW8804 also supports TFT panel power sequencing,
DPMS Display Power Management Signaling) signaling and
power management. The control interface is a 2-wire serial
bus interface. The TW8804 core operates at 2.5V, the IO at
3.3V and is packaged in a 160-pin PQFP package.
Features
• Low angle compensation circuit for smooth video rendering
• Black/White/Blue stretch for higher contrast
• Sharpness control for sharper video
• Panorama/water glass feature for more natural scaling
• Integrated OSD with 200+ user defined fonts
• Integrated programmable timing controller (TCON)
TFT Panel Support
• Supports a wide variety of active matrix TFT panels either
one or two pixels per clock
• Supports panel with resolution up to SXGA (1280 x 1024)
Timing Controller (TCON)
• Support programmable interface signals for control column
(source) driver / row (gate) driver
Analog Video Decoder
• NTSC (M, 4.34) and PAL (B,D,G,H, I,M,N,N combination), PAL
(60),SECAM with automatic format detection
• Advanced synchronization processing for VCR fast forward,
backward, and pause mode
• Six 9-bit ADCs and analog clamping circuit
• Fully programmable static gain or automatic gain control for
the Y or CVBS channel
24bit Digital RGB and 8/16/24-bit YCbCr
Inputs
• Allows connection to analog PC Graphics cards with the
addition of a 3 channel A/D converter for up to SXGA
resolution
• Allows YCbCr digital component input for DTV 480p, 720p,
1080i
Image Control
• Programmable hue, brightness, saturation, contrast
• Automatic color control and color killer
• Sharpness control with vertical peaking up to +12db
• Programmable color transient improvement control
• Supports programmable cropping of input video and
graphics
• High quality expansion for low-resolution graphics
• Built-in de-interlacing engine with proprietary low angle
compensation circuit for smooth video rendering
FN7756 Rev.0.00
February 1, 2011
Page 1 of 2
TW8804
Features
(Continued)
On Screen Display
• Built-in OSD controller with integrated character ROM and
programmable RAM font
• Supports dedicated port for an optional external OSD
controller
Video Processing
• 4-H adaptive comb filter Y/C separation
• 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 non-standard video signals
• Programmable hue, brightness, saturation, contrast,
sharpness, gamma control, and noise suppression
Applications
• LCD TV
• LCD Monitor with TV
• Car TV Portable DVD Players
OSDPD[2:0]
Chroma
Demodulation
CIN
YIN0
YIN1
YIN2
YIN3
MUX
OSD
2X Analog Front End
YIN4
YUV Processing
Alpha Blending
YOUT
4H Adaptive
Comb Filter
DECVS
Sync
Processor
DECHS
Soft Switch
OSDVSYNC
OSDHSYN C
OSOSDPDE
OSOCLK
Gamma / Dither
Image
Enhancement
Color Matrix
Scaler /
Deinterlacer
Line Buffers
FPR0[7:0]
FPG0[7:0]
FPB0[7:0]
MUX
Output Formatter
MUX MUX MUX MUX
4X ADC
RIN1
GIN0
GIN1
BIN0
BIN1
Component
Processor
RIN0
MUX
FB0
FB1
FPR1[7:0]
FPG1[7:0]
FPB1[7:0]
FPVS
FPHS
FPDE
FPCLK
FPPWC
FPBIAS
Panel Timing
Generator
VCOM
VREFN
VREFP
TCON
MC SDA
DTVCLK
DTVVS
DTVHS
DTVDE
DTVD[23:0]
COAST
Input Format
Measurement
DTV I/F
Registers
2 Wire
Serial Bus
MC SCL
MC SIA
FIGURE 1.
© Copyright Intersil Americas LLC 2011. All Rights Reserved.
All trademarks and registered trademarks are the property of their respective owners.
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 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
FN7756 Rev.0.00
February 1, 2011
Page 2 of 2
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