Issue X-1
CM2031
Application Information
Design Considerations
DUT On vs. DUT Off
Many HDMI CTS tests require a power off condition on
the System Under Test. Many discrete ESD diode
configurations can be forward baised when their VDD
rail is lower than the I/O pin bias, thereby exhibiting
extremely high apparent capacitance measurements,
ΤΜ
circuitry limits this current to less than 5μA, and will
help ensure HDMI compliance.
for example. The MediaGuard
backdrive isolation
PLEASE REVIEW ALL OF THE CURRENT HDMI DESIGN GUIDELINES AVAILABLE AT
http://www.calmicro.com/applications/customer/downloads/current-cmd-mediaguard-design-guidelines.zip
© 2007 California Micro Devices Corp. All rights reserved.
07/10/07
490 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.cmd.com
13
CALMIRCO [ CALIFORNIA MICRO DEVICES CORP ]
