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CM1412 - 2-Channel Headset/Microphone EMI Filter

General Description

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.

designed to interface with a microphone port on a cellular telephone or similar device.

Key Features

  • Functionally and Pin Compatible with ON Semiconductor’s CSPEMI202A.
  • OptiGuardt Coated for Improved Reliability at Assembly.
  • Two Channels of EMI Filtering.
  • Pi.
  • Style EMI Filters in a Capacitor.
  • Resistor.
  • Capacitor (C.
  • R.
  • C) Network.
  • Greater than 40 dB Attenuation at 1 GHz.
  • ±8 kV ESD Protection on Each Channel (IEC 61000.
  • 4.
  • 2 Level 4, Contact Discharge).
  • ±15 kV ESD Protection on Each C.

📥 Download Datasheet

Datasheet Details

Part number CM1412
Manufacturer onsemi
File Size 431.13 KB
Description 2-Channel Headset/Microphone EMI Filter
Datasheet download datasheet CM1412 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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CM1412 2-Channel Headset / Microphone EMI Filter Array with ESD Protection Product Description 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 35 dB attenuation in the 800 to 2700 MHz range. These pi−style filters support bidirectional filtering that control 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).