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IC Electronic information

67 What is the anti-interference digital circuit design principles?

In Electronic Infomation Category: 6 | on November 23,2011

Digital circuit design the basic principles of interference is:

(1) sources of interference suppression, interference sources, such as loop through the series inductance or resistance and 67 datasheet and increase the freewheeling diode to achieve.

(2) cut off the interference propagation paths, interference propagation path can be divided into two types of conduction and 67 price and radiation. The so-called conduction disturbance is transmitted through the wires to the sensitive components of the interference. High-frequency noise and 67 suppliers and interference of different signal in the band, you can add filters on the way to the wire cut off the spread of high-frequency interference noise, and sometimes can be added to solve isolated optocoupler. The so-called radiation interference is spread through the space radiation interference to sensitive devices. The general solution is to increase the interference source and the distance-sensitive devices, land-line to isolate them and add in the shield sensitive devices.

(3) sensitive devices to improve anti-jamming performance. Sensitive devices to improve anti-jamming performance is sensitive to the choice of device should be considered to minimize interference noise pickup, and the device never normal ability to recover as quickly as possible. Sensitive devices to improve the performance of commonly used anti-jamming program are: to minimize the loop wiring loop area to reduce sensor noise; cabling, power and ground to try to rough, and many other programs.

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