Circuit Protection of DVI Port
Solutions:

Design Notes:
Protection Application:
The data signals used in Digital Visual Interface ports vary between approximately -1.2V and 1.2V, and have a data rate of 1,600Mbps. The signal lines to be protected from ESD include Data0+, Data0-, Data1+, Data1-, Data2+, Data2-, Clock+ and Clock-. Note that this is for the single link version. If the dual link version is used, an additional 3 pairs (6 data lines) would need protection.
Solution Description:
Due to the extremely high rate of data transfer, the capacitance of the ESD suppressor must be minimized. Low-capacitance (devices under 1pF) such as the SP3003 series SPA TVS Diode Arrays or discrete PulseGuard ESD suppressors are recommended. For lowest possible clamping voltage (lowest dynamic resistance), Littelfuse TVS Diode Array (SPA) devices should be used; for lowest possible capacitance Littelfuse PulseGuard (PGB) devices should be used.
Companion Solutions:
Other solutions exist in the TVS Diode Array Portfolio such as the SP3010 Series if a smaller form factor (2.5x1.0mm) is required as well as lower capacitance (0.45pF).
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:
Does not apply.
Application Warnings:
Does not apply.

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