CM2020
HDMI Transmitter Port Protection and Interface Device
Features
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•
•
•
•
•
0.05pF matching capacitance between the TMDS
intra-pair
Overcurrent output protection
Level shifting circuitry, including
±8kV
ESD protec-
tion on all TMDS lines
Matched 0.5mm trace spacing (TSSOP)
Simplified layout for HDMI connectors
Backdrive protection
Product Description
The CM2020 HDMI Transmitter Port Protection and
Interface Device is specifically designed for next gen-
eration HDMI Host interface protection.
An integrated package provides all ESD, level shift,
overcurrent output protection and backdrive protection
for an HDMI port in a single 38-Pin TSSOP package.
The CM2020 part is specifically designed to comple-
ment the CM2021 protection part in HDMI receivers
(Displays, CE devices, etc.)
The CM2020 also incorporates a silicon overcurrent
protection device for +5V supply voltage output to the
connector.
Applications
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•
•
•
PC
Consumer Electronics
Set Top Box
Displays and Digital Television
Electrical Schematic
TMDS_VDD
5V_SUPPLY
TMDS_D2+
TMDS_GND
TMDS_D2-
TMDS_D1+
TMDS_GND
TMDS_D1-
TMDS_D0+
TMDS_GND
TMDS_D0-
TMDS_CK+
TMDS_GND
TMDS_CK-
3.3V SUPPLY
TMDS_VDD
3.3V SUPPLY
TMDS_VDD
CE_REMOTE_IN
CE_REMOTE_OUT
DDC_DAT_IN
DDC_DAT_OUT
3.3V SUPPLY
TMDS_VDD
3.3V SUPPLY
TMDS_VDD
DDC_CLK_IN
DDC_CLK_OUT
HOTPLUG_DET_IN
HOTPLUG_DET_OUT
5V_SUPPLY
75mA
OVERCURRENT
SWITCH
5V_OUT
©
2005 California Micro Devices Corp. All rights reserved.
02/07/05
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
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Tel: 408.263.3214
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Fax: 408.263.7846
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www.calmicro.com
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CALMIRCO [ CALIFORNIA MICRO DEVICES CORP ]
