PRELIMINARY
CM20LT-C
HDMI Source/Sink Port Protection and Interface Device
Features
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Long HDMI cable support with integrated I
2
C
accelerator
Low Capacitance DDC for HDMI Compliance
Improved CEC Signal Quality and Compatibility
Translates I C level to CMOS level on DDC line
Overcurrent output protection for Source
5V Diode Bridge for EEPROM for Sink
Level shifting isolation circuitry, including
±8kV
ESD protection on all external I/O lines
Backdrive protection and Isolation <5µA on all pins
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Product Description
The CM20LT-C HDMI Port Protection and Interface
Device is designed for next generation HDMI Source
and Sink interface protection.
An integrated package provides complete low capaci-
tance ESD, level shifting/isolation, slew rate limiting
and terminations, overcurrent output protection,
EEPROM and backdrive protection to ensure HDMI
Compliance in a single 10-Pin MSOP package.
The CM20LT-C part is specifically designed to provide
the designer with the most reliable path to HDMI 1.3
CTS compliance.
Applications
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PC and Consumer Electronics
Set Top Box, DVDRW Players
Consumer Electronics
Displays and Digital Television
Electrical Schematic
55mA
OVERCURRENT
SWITCH
VOUT
VIN_1
VIN_2
VIN_1
VIN_1
VIN_1
VIN_1
DDC_CLK_IN
DYNAMIC
PULLUP
DDC_CLK_OUT
DDC_DAT_IN
DYNAMIC
PULLUP
DDC_DAT_OUT
CMOS/I2C
LEVEL SHIFT
CMOS/I2C
LEVEL SHIFT
VIN_2
CEC_IN
Slew Rate Ctrl
& Termination
Backdrive
Control
CEC_OUT
© 2006 California Micro Devices Corp. All rights reserved.
4/18/2006
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 ]
