DVI port protection scheme
1.DVI needs to support hot swap;
2.DVI transmission rate can reach 8GPBS;
3.DVII chip is fragile and easy to be damaged by static electricity.
Second, the plan elaboration
1. This solution uses three TVS on the DVI data line, clock frequency and other transmission lines. Ultra-low capacitance, reduced packaging area, and clamping electrostatic voltage can completely transmit signals.
2. Meet the IEC61000-4-2 electrostatic test standard.
3. Pass ESD IEC61000-4-2 Level 4 Contact Discharge: 8KV, Air Discharge: 15KV test.
Scheme protection circuit diagram: