CM1412

PRODUCT DESCRIPTION

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The CM1412 is a dual low-pass filter array integrating two pi-style filters (C-R-C) that reduce EMI/RFI emissions while providing ESD protection. This part is custom-designed to interface with a microphone port on a cellular telephone or similar device. Each high quality filter provides more than 35dB attenuation in the 800-2700 MHz range. These pi-style filters support bidirectional filtering, controlling EMI both to and from a microphone element. They also support AC signals, enabling audio signals to pass through without distortion.

In addition, the CM1412 provides a very high level of protection for sensitive electronic components that may be subjected to electrostatic discharge (ESD). The input pins safely dissipate ESD strikes of ±8kV, the maximum requirement of the IEC 61000-4-2 international standard. Using the MIL-STD-883 (Method 3015) specification for Human Body Model (HBM) ESD, the device provides protection for contact discharges to greater than ±15kV.

The CM1412 is particularly well suited for portable electronics (e.g., cellular telephones, PDAs, notebook computers) because of its small package format and low weight. The CM1412 incorporates OptiGuard™ coating which results in improved reliability at assembly and is available in a space-saving, low-profile Chip Scale Package with lead-free finishing.

APPLICATIONS

DATA SHEET(S)

PACKAGING, FINISHING & STATUS INFORMATION