Internal interference noise suppression solutions for smartphones: EMI suppression filters

This article introduces BLF series frequency specified filters and NFP series common mode noise filters.

Check the video!
Use of EMI suppression filters prevents a drop in reception sensitivity

  Noise reduction effects can be expected by using EMI suppression filters.
 
 
 
     

Applicable series


  Frequency specified filters
BLF series
  • Noise filters specialized for noise suppression performance in the 700 MHz and 2.4 GHz carrier frequency bands
 
BLF series details page
   
Chip size Part number Target frequency
Impedance
@ target frequency 
0402mm
01005inch
BLF02JD361GNE 700MHz 360Ω
BLF02JD471GNE 470Ω
BLF02RD331GNE 2.4GHz 330Ω
BLF02RD471GNE 470Ω
0603mm
0201inch
BLF03JD421GNE 700MHz 420Ω

  Common mode filter
NFP series

  • Effective suppression of common mode noise without impacting differential signals
  • Ideal for high-speed differential transmission lines such as MIPI and USB interfaces
 
NFP series details page
 
Chip size Part number
Target frequency 
0605mm
025020inch
NFP0QHB242HS2
8.5GHz (Typ.)
NFP0QHB372HS2
10GHz (Typ.)
NFP0QHB542HS2
10GHz (Typ.)

 
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