CM2020 Datasheet, PDF (1/8 Pages) California Micro Devices Corp – HDMI TRANSMITTER PORT PROTECTION AND INTERFACE DEVICE

CM2020
HDMI Transmitter Port Protection and Interface Device
Features
• 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
Applications
• PC
• Consumer Electronics
• Set Top Box
• Displays and Digital Television
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.
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
CE_REMOTE_IN
TMDS_VDD
3.3V SUPPLY
CE_REMOTE_OUT DDC_DAT_IN
TMDS_VDD
DDC_DAT_OUT
3.3V SUPPLY
DDC_CLK_IN
TMDS_VDD
3.3V SUPPLY
DDC_CLK_OUT HOTPLUG_DET_IN
TMDS_VDD
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 ● Tel: [phone] ● Fax: [phone] ● www.calmicro.com 1