DVI port protection scheme

一、The application background
1. DVI need support hot plug;
2. 8 GPBS DVI transmission rate can reach;
3. DVII chip fragile, easy damage of electrostatic.


二、The scheme in this paper
1. In the scheme of the DVI cable, clock frequency, etc on a transmission line with three TVS, low capacitance, reduce packaging area, electrostatic voltage clamp, can complete the transmission signal.
2. Meet IEC61000-4-2 electrostatic test standard.
3. Can through the ESD IEC61000-4-2 Level 4 Contact Discharge: 8 kv, Air Discharge: 15 kv test.


三、Project information is as follows: