Si
I
1172
|
PanelLink Transmitter
The SiI 1172 is the world’s first single-link TMDS
™
transmitter to
break the bandwidth barrier and support an amazing 225 MHz band-
width. The latest addition to SiI’s comprehensive SiI 1000 family of
DVI solutions, the SiI 1172 transmitter incorporates next-generation
PanelLink
®
technology to support bandwidths of 25 to 225 MHz.
As a result, the SiI 1172 supports LCD monitors and projectors
with resolutions that range from VGA to QXGA (2048 x 1536).
Three TMDS data channels for RGB send data at up to 2.25 Gbps
per channel. The SiI 1172 incorporates an industry-standard 12-bit
(1/2 pixel per clock edge) interface for true color (16.7 million)
support. Built-in flexibility enables customers to use pins to configure
settings or the I
2
C interface to program registers.
The SiI 1172 is available in a low-cost, easier-to-use, 48-pin TSSOP
package with a 57 % smaller footprint compared to other discrete
DVI transmitters. By incorporating the most advanced PanelLink
DVI technology available today, the SiI 1172 transmitter brings higher
performance and guaranteed compatibility to single-link DV I
applications while enabling faster time to market, smaller form
factor designs and lower system costs.
DVI-compliant Quality
The DVI 1.0 specification defines the precise system-level signaling at the output of a DVI
transmitter system and at the input of a DVI receiver system. As a result, any DVI-compliant
host will always interoperate with any DVI-compliant display. The most comprehensive
method to determine the quality and compliance of a DVI transmitter is to measure the
TMDS “eye” diagram as defined by the DVI 1.0 specification and the DVI Test & Measurement
Guide. Only high-performance PanelLink DVI transmitters, such as the SiI 1172, yield
consistently robust differential signal “eyes” that exceed the minimum “eye” width & height
requirements of the DVI specification throughout the full DVI bandwidth of 25-165 MHz.
At bandwidths above 165 MHz, the SiI 1172 is interoperable with PanelLink receivers also
rated to run over 165 MHz.
Applications
• PC Motherboards
• Graphics Boards
• Notebook PCs
SiI 1172 TMDS “eye” diagram measured
at 225 MHz.
Host
(PC, Graphics Board)
Display
(LCD Monitor, Projector, Plasma Display)
Channels 0, 1, 2
DE
Pixel data
DE
Video
Source
Clock
HSYNC
VSYNC
Si
I
1172
PanelLink
Transmitter
Clock Channel
Si
I
DVI
PanelLink
Receiver
Pixel data
Clock
HSYNC
VSYNC
Digital
Display
DDC (I
2
C)
Si
I
1172
|
PanelLink Transmitter
Monitor Sense
Edge Select
Input Bus Select
Powerdown
De-Skew
Hot Plug Detect
SiI 1172 Features
PanelLink
®
Transmitter
• Scalable bandwidth from 25 to
225 MHz (VGA to QXGA)
• Three TMDS
™
data channels
capable of transferring up to
2.25 Gbps per channel
• Inter-pair skew tolerance up
to 1 input clock cycle (4.5 ns at
225 MHz)
• Adjustable TMDS low-voltage swing
amplitude for long cable
support
• DC-balanced signals for direct
coupling to fiber-optic ready
modules
• Operates with all DVI 1.0-compliant
receivers
• Supports Hot Plug Detect and
Receiver Sensing
I
2
C Select/
Reset
I
2
C Data
I
2
C
Clock
I
2
C
Slave
Registers
and
Configuration
Logic
Si
I
1172
Data [11:0]
Display Enable
Horizontal Sync
Vertical Sync
Clock
Tx0
Data Capture
Block
PanelLink
Transmitter
Tx1
Tx2
TxC
Power Ground
Reference
Voltage
External
Voltage Swing
Input
• Flexible graphics controller interface:
1.0V - 1.9V (DVO) or 3.3V
(CMOS) interface voltages
• 12-bit input for true color
(16.7 million) support
• De-skewing option to vary clock to
data timing
• Supports dual-edge single clock
or dual-edge differential clock
• Selectable primary edge of parallel
data
• Programmable through I
2
C inter-
face or configurable by pin settings
Power Management
• 3.3V core provides low-power
operation
• Low-power standby mode
Silicon Image’s
SiI 1172 Starter Kits
SiI 1172 starter kits are available for
various motherboard and graphics
chipset platforms. For details, please
see Starter Kits/Reference Designs
on the Silicon Image website at
www.siliconimage.com
Part Number - SiI1172CS48
©2003 Silicon Image, Inc. All rights reserved. Silicon Image, the Silicon Image logo, SiI, SiI 117 2, PanelLink, the
PanelLink logo and TMDS are trademarks or registered trademarks of Silicon Image, Inc. in the United States
and other countries. Other trademarks are the property of their respective holders. Product specifications
are subject to change without notice. Printed in the U.S.A. 6/03 SiI PB - 0040
Silicon Image, Inc.
1060 E. Arques, Sunnyvale, CA 94085
T 408.616.4000 F 408.830.9530
www.siliconimage.com
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