CM1411 Datasheet, PDF (1/9 Pages) California Micro Devices Corp – 2 Channel Headset/Speaker EMI Filter with ESD Protection

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