Hello, welcome to SAFE Circuits Technology Co.,Ltd

Chinese English にほんこ

Service hotline:


+86 0755 27055569 +86 18938919530

News
Product center
Contact us

Tel:0755-27055569

Fax:0755-27066835

E-mail:gnpcb@gnpcba.com

Your current position:Home > NewsIndustry news

High frequency circuit board wiring to be aware of the problem.

date:2018-04-09

In order to make the design of hf circuit board more reasonable and anti-interference performance better, the design of high frequency circuit board should be considered in the following aspects.

1. Use the middle inner plane as the power and ground layer, which can play the role of shielding, and can reduce the parasitic inductance, shorten the signal line length, and reduce the cross interference between signals.

2. The line must be turned at a 45-degree Angle, which will reduce the emission of high frequency signals and the coupling between them.

3. The shorter the line length, the better. The shorter the two lines, the better.

4. The fewer holes, the better.

5. Vertical direction should be taken in the direction of interlayer wiring, namely, the top level is horizontal and the bottom is vertical, which can reduce interference between signals.

6. Increasing the grounding of copper coating can reduce interference between signals.

7,对重要的信号线进行包地处理,可以显著提高该信号的抗干扰能力,当然还可以对干扰源进行包地处理,使其不能干扰其他信号。


8,信号走线不能环路,需要按照菊花链方式布线。


9,去耦电容。在集成电路的电源段跨接去耦电容。


10,数字地、模拟地连接公共地线时要接高频扼流器件,一般是中心孔穿有线的高频铁氧体磁珠。


Type: NewsIndustry news

1
Online customer service
close

service hotline

+86 0755 27055569

 
serve