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Blog Improve your design get rid of noise
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  • Author Author: nwieland
  • Date Created: 20 Jun 2022 11:44 AM Date Created
  • Views 523 views
  • Likes 6 likes
  • Comments 0 comments
  • sensors
  • würth elektronik
  • Design
  • wireless connectivity
  • noise
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Improve your design get rid of noise

nwieland
nwieland
20 Jun 2022
Improve your design get rid of noise

Improve your design get rid of noise 

Noise at 2.4 / 5.0 GHz

Noise can interfere with the extremely sensitive wireless channels operating at 2.4 / 5.0 GHz bands. Therefore it is important to consider a holistic design of the full application.

Communication Interfaces – source of noise

Noise can interfere with the extremely sensitive wireless channels operating at 2.4 / 5.0 GHz bands.

  • Communication interfaces radiate noise on a very broad spectrum which can interfere with the Wi-Fi signal
  • This can lead to loss of the Wi-Fi signal

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Signal Integrity and Increase in Data Speed of Highspeed interfaces

Signal integrity defines the quality of an electrical signal and refers to the challenges that arise due to high frequency data transmission. With the high switching speeds of the modern digital I/O interfaces, we are now able to achieve high data rates and bandwidth. At the same time, noise is a big concern for the integrity of these high frequency digital signals.

image

Common Mode Chokes - reduce emissions, increase noise immunity

Common mode Filters/Chokes are a very effective way of protecting the data lines against noise interference, while reducing emissions at the same time. Choosing the appropriate common mode choke for a high-speed differential interface requires knowledge about both the application and the filter itself.

 

WE-CCMF

Ceramic Common Mode Filter:

  • Ceramic based choke that works on the principle of the transmission line theory
  • Complex inner resonant structure ensures high common mode suppression at wireless frequencies (2.4 & 5.0 GHz)
  • Keeps the differential signal intact

image

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If you want to read more find here the whole Product Guide.

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