Product Description

The CM1414 is a low-pass filter array designed specifically to reduce EMI/RFI emissions and provide ESD protection for a headset port on a cellular and mobile devices. The CM1414 integrates two high quality, pi style filters (C-R-C) filters, one for a microphone and one for an earpiece or speaker, each providing more than 35dB attenuation relative to the pass band attenuation in the 800-2700 MHz range. These filters support bidirectional filtering, reducing EMI both to and from the headset port and support bipolar audio signals without distortion.

Features

• Functionally and pin compatible with CMD’s CSPEMI204

• OptiGuard™ coated for improved reliability at assembly

• Two channels of EMI filtering, one for a micro phone and one for an earpiece speaker

• Pi-style EMI filters in a capacitor-resistor-capacitor (C-R-C) network

• Greater than 35dB attenuation in the 800-2700MHz range

• +8kV ESD protection on each channel (IEC 61000-4-2 Level 4, contact discharge)

• +15kV ESD protection on each channel (HBM)

• Chip Scale Package features extremely low parasitic inductance for optimum filter performance

• 5-bump, 0.950mm X 1.41mm footprint Chip Scale Package (CSP)

• Lead-free version available

Applications

• EMI filtering and ESD protection for headset micro phone and earpiece speaker ports

• Cellular / Mobile Phones

• Notebooks and Personal Computers

• Handheld PCs / PDAs / Tablets

• Wireless Handsets

• Digital Camcorders