EMIF04-EAR02M8

EMIF04-EAR02M8 www.datasheet4u.com 4-line IPAD™ EMI filter and ESD protection for headset 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 Figure 1. Pin configuration (bottom side) MIC_P_Int Micro QFN 8 leads MIC_P_Ext Complies with following standards: ■ EAR_Ext EAR_Ext GND MIC_N_Ext MIC_N_Int EAR_Int EAR_Int IEC 61000-4-2 level 4 input pins – 15 kV (air discharge) – 8 kV (contact discharge) Applications ■ Figure 2. Equivalent circuit R C MIC Mobile phones L_MIC Description The EMIF04-EAR02M8 chip is a highly integrated device designed to suppress EMI/RFI noise for headset mobile phone. The new LC architecture on the speaker lines provides a high attenuation value maintaining a very low serial resistance. The 8-lead micro-QFN 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. R C MIC L_MIC L C EAR L_EAR L C EAR L_EAR TM: IPAD is a trademark of STMicroelectronics March 2009 Rev 1 1/12 www.st.com 12 Characteristics EMIF04-EAR02M8 1 www.datasheet4u.com Characte...