Circuit protection of VGA port
Solution:
Design description:
Protection application:
VGA port using the signal line maximum frequency of 25 MHz, its R, G, B line video signal is Vp-p, ID01, ID02, ID03, H-sync and V-sync video signal range of 0.3 to 5 Vp-p. The suppression capacitance of these lines should be considered.
Solution description:
As shown in the case, can use discrete MLCV, enable the circuit board layout is more flexible, such as to reduce the number of spare parts, can use two rail clamp.
Supporting solution: not applicable.
Regulatory issues:
IEC 61000-4-2 is the most suitable standard for this interface. Through the test can prove that terminal products are not vulnerable to ESD hazards.
Characteristic: not applicable.
Application warning: not applicable.