Application Design Center - Digital Still/Video Camera

Circuit Protection of HDMI Port

Solutions

• PGB1010603
• PGB1040805
• PGB1040805

Design Notes:

Protection Application:

The data signals used in High Definition Multimedia Interface ports vary between approximately 2.5V and 3.5V, and have a data rate of 1,600Mbps. The signal lines to be protected from ESD include R+, R-, G+, G-, B+, B-, Cl+ and Cl-.

Solution Description:

Due to the extremely high rate of data transfer, the capacitance of the ESD suppressor must be minimized. As shown at the left, discrete PulseGuard® suppressors can be used for board layout flexibility, or to reduce part count, array versions can be used.

Companion Solutions:

Does not apply.

Regulatory Issues:

The IEC 61000-4-2 will be the most appropriate standard that applies for this port. It supplies a test method for verifying that the end product is not susceptible to ESD events.

Unique Features:

The PulseGuard solution has the industry’s lowest capacitance value. This feature ensures that it will maintain the signal integrity of high-speed data ports.

Application Warnings:

Does not apply.