Data Brief
SiI9185A 3:1 HDMI Switch
Data Brief
Document # SiI-DB-1016-C01
SiI9185A 3:1 HDMI Switch
Data Brief
Silicon Image, Inc.
June 2010
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Patents
The subject matter described herein contains one or more inventions claimed in patents and / or patents pending owned
by Silicon Image, Inc., including but not limited to the inventions claimed in US patents #6,914,637, #6,151,334,
#6,026,124, #5,974,464 and #5,825,824.
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licenses required for using HDMI and HDCP technologies is available from www.hdmi.org and www.digital-cp.com.
© 2008-2010 Silicon Image, Inc. All rights reserved
ii © 2008-2010 Silicon Image, Inc. All rights reserved. SiI-DB-1016-C01
SiI9185A 3:1 HDMI Switch
Data Brief
.
General Description
The SiI9185A 3:1 HDMI Switch is the first generation with an external 4-channel I2C bus switch to allow
of TMDS™ switching devices that supports the clock stretching.
features of revision 1.3 of the HDMI® Specification and
integrates the latest generation of TMDS core
technology. With three HDMI inputs and a single TMDS
output, the switch provides a low-cost method of • The TMDS cores are capable of receiving and
retransmitting protected digital audio and video and transmitting at 2.25 Gbps.
adding additional HDMI ports to the latest digital TVs • Video resolutions up to 1080p, 60 Hz, 12-bit or
(DTVs), giving consumers a truly all-digital experience. 720p/1080i, 120 Hz, 12-bit are supported.
New DTVs can easily connect to the many HDMI • An adaptive equalizer provides long cable support,
sources coming to market, including DVDs, Set Top even at Deep Color resolutions.
Boxes (STBs), game consoles, PCs, camcorders, and • The transmitter includes pre-emphasis.
digital still cameras.
Unlike some other HDMI switching devices, which use
high-speed analog switches that can degrade TMDS CEC Support
signals, the SiI9185A switch uses TMDS cores to • An integrated HDMI-compliant CEC I/O and the
recover and retransmit the HDMI signal. Silicon Image CEC API eliminate the need for
Backward compatibility with DVI 1.0 allows HDMI additional external components.
systems to connect to any DVI 1.0 source. • The API manages all CEC signaling using the CEC
protocol and makes CEC information available to
The SiI9185A switch is the first generation of devices
the system microcontroller, eliminating the
from Silicon Image that integrates Extended Display microcontroller overhead needed to manage the
Identification Data (EDID). The EDID is stored in on- CEC bus and thus simplifying design.
board RAM downloaded from the system micro-
controller during power-up or initialization. The EDID
is reflected on each of the three HDMI ports through Control Capability
the DDC bus. The device also allows using EDID • The device can be controlled by the local I2C bus.
stored on an external ROM, and either location can be
• An optional stand-alone mode (for which I2C
selected for each port. Having the flexibility to provide
control is not required) is available for speeds up to
EDID content from on-board RAM can eliminate up to
165 MHz and allows the device to act as a simple
three EDID ROMs and save board space.
switcher.
This device provides additional features that eliminate • The CEC and EDID are still functional during the
external components, lower system cost, and provide very-low-power standby mode when the DTV is
enhanced features to the end-user. The switch provides off, which meets Energy Star and other power-
a complete solution for switching sink-side HDMI saving requirements.
signals, such as DDC switching and Hot Plug Detect
(HPD) control for each port, and 5-volt sense to speed
audio mute when changing HDMI cables. For source- Package
side applications, DDC switching can be bypassed • 80-pin, 12 mm by 12 mm, 0.5 mm pitch, TQFP package
Figure 1. Typical Application
SiI-DB-1016-C01 © 2008-2010 Silicon Image, Inc. All rights reserved. 1
SiI9185A 3:1 HDMI Switch
Data Brief
Silicon Image, Inc.
SiI9185A Pin Mapping
Figure 2 shows the pin diagram for the SiI9185A switch in the 80 pin, 12 mm by 12 mm, 0.5 mm pitch, TQFP package. Pin
names are generalized by type for this document. The list below the diagram describes the purpose of each type.
Figure 2. Pin Mapping
2 © 2008-2010 Silicon Image, Inc. All rights reserved. SiI-DB-1016-C01
SiI9185A 3:1 HDMI Switch
Data Brief
Silicon Image, Inc.
Package Information
These drawings are not to scale.
Package Dimensions
Symbol Description Min Typ Max
A Thickness — — 1.20
A1 Stand-off 0.05 — 0.15
A2 Body Thickness 0.95 1.00 1.05
b Plated Lead Width 0.17 0.20 0.27
b1 Metal Lead Width 0.17 0.20 0.23
c Plated Lead Thickness 0.09 — 0.20
c1 Metal Lead Thickness 0.09 — 0.16
D Footprint 14.00 BSC
D1 Body Size 12.00 BSC
E Footprint 14.00 BSC
E1 Body Size 12.00 BSC
e Lead Pitch 0.50 BSC
L Lead Foot Length 0.45 0.60 0.75
L1 Total Lead Length 1.00 REF
R1 Lead Radius, Inside 0.08 0.15 —
R2 Lead Radius, Outside 0.15 0.20 0.25
S Lead Horizontal Run 0.20 — —
θ Lead Foot Angle 0° 3.5° 7°
θ1 Vertical Lead Angle 0° — —
θ2 Upper Facet Angle 11° 12° 13°
θ3 Lower Facet Angle 11° 12° 13°
Dimensions in millimeters.
Overall thickness A = A1 + A2.
Figure 3. 12.0 mm x 12.0 mm TQFP Package Diagram
SiI-DB-1016-C01 © 2008-2010 Silicon Image, Inc. All rights reserved. 3
SiI9185A 3:1 HDMI Switch
Data Brief
Silicon Image, Inc.
Marking Specification
Marking drawing is not to scale.
Legend Description
LLLLLL.LLLL Lot number
YY Year of manufacture
WW Week of manufacture
TTTTTT Trace code
M Maturity code
The universal package can be used in lead-free and ordinary process lines.
Figure 4. Marking Diagram
Ordering Information
Production Part Numbers: Device Part Number
Standard SiI9185ACTU
4 © 2008-2010 Silicon Image, Inc. All rights reserved. SiI-DB-1016-C01
SiI9185A 3:1 HDMI Switch
Data Brief
Silicon Image, Inc.
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