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4-line IPADTM EMI filter and ESD protection for headsets

The EMIF04-EAR02M8 is a highly integrated chip designed to suppress EMI/RFI noise for headset mobile phones. The new LC architecture on the speaker lines provides a high attenuation maintaining a very low serial resistance. The 8-lead micro-QFN package allows the whole function to be integrated in a very small PCB space. Additionally, this filter includes ESD protection circuitry, which prevents damage to the protected device when subjected to ESD surges up 30 kV.

 
EMIF04-EAR02M8
 
Datasheet
Format: PDF(475 kb) Last Updated: 24/03/2009 Pages: 12
Features
High attenuation: below -30 dB from 900 MHz to 1900 MHz
Low cutoff frequencies: 60 MHz for earphone lines, 70 MHz for microphone lines
Very low PCB space: 1.5 mm x 1.7 mm
Very thin package: 0.6 mm maximum
High efficiency in ESD suppression: IEC6 1000-4-2 level 4
 
Benefits
Product fully adapted to headset topology
Differentiated lines for microphones and earphones
Ultra low serial resistance
Wide rejection bandwidth
Perfect for PCBs requiring high integration or miniaturization
Simple layout
 

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