CM1411 データシートの表示（PDF） - ON Semiconductor

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CM1411

2-Channel Headset/Speaker EMI Filter Array with ESD Protection

ON Semiconductor 

2-Channel Headset/Speaker EMI Filter

Array with ESD Protection

CM1411

Features

• Functionally and pin compatible with the

CSPEMI201A

• OptiGuard™ 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 40dB attenuation at 1GHz

• +8kV ESD protection on each channel

• (IEC 61000-4-2 Level 4, contact discharge)

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

• Supports AC signals—ideal for audio applications

• Extremely low lead inductance for optimum filter

and ESD performance

• 5-bump, 0.950mm X 1.410mm footprint

Chip Scale Package (CSP)

• Lead-free RoHS compliant

Applications

• EMI filtering and ESD protection for

headset/speaker ports

• Wireless handsets

• Handheld PCs / PDAs

• MP3 players

• Digital camcorders

• Notebooks

• Desktop PCs

Product Description

The CM1411 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

speaker port on a cellular telephone or similar device.

Each high quality filter provides more than 35dB

attenuation in the 800 to 2700 MHz range. These pi-

style filters support bidirectional filtering that control

EMI both to and from a speaker element. They also

support AC signals with a cutoff frequency of 31MHz,

enabling audio signals to pass through without

distortion.

In addition, the CM1411 provides a very high level of

protection for sensitive electronic components that

may be subjected to electrostatic discharge (ESD).

The CM1411 can 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 CM1411 is particularly well-suited for portable

electronics (e.g., cellular telephones, PDAs, notebook

computers) because of its small package format and

low weight. The CM1411 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.

©2010 SCILLC. All rights reserved.

April 2010 Rev. 3

Publication Order Number:

CM1411/D

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