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EMIF04-EAR02M8：2-line EMI filter for earphones + 2-line EMI filter for microphones

The EMIF04-EAR02M8 chip is a highly integrated device designed to suppress EMI/RFI noise for mobile phone headsets. The new LC architecture on the speaker lines provides a high attenuation value maintaining a very low serial resistance.

The μQFN-8L package offers the possibility to integrate the whole function 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.

Key Features

• lead-free package
• high attenuation: -30 dB at 900 MHz
• low cut-off frequencies: 60 MHz for speaker lines
• high current capability: 50 mA per line
• very low PCB space consumption: 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
• high reliability offered by monolithic integration
• Complies with following standards:
  • IEC 61000-4-2 level 4 all pins:
    • 15 kV (air discharge)
    • 8 kV (contact discharge)
  • 8 kV (contact discharge)

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