2 Channel Headset Speaker EMI Filter
with ESD Protection
CSPEMI201AG
Features
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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, 0.930mm X 1.410mm footprint
Chip Scale Package (CSP)
RoHS compliant (lead-free) finishing
Product Description
The CSPEMI201AG is a dual low-pass filter array
integrating two pi-style filters (C-R-C) that reduce
EMI/RFI emissions while at the same time 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 800-2700 MHz
range. These pi-style filters support bidirectional
filtering, controlling EMI both to and from a speaker
element. They also support bipolar signals with a
cutoff frequency of 31MHz, enabling audio signals to
pass through without distortion.
In addition, the CSPEMI201AG provides a very high
level of protection for sensitive electronic components
that may be subjected to electrostatic discharge
(ESD). The CSPEMI201AG 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 CSPEMI201AG is particularly well-suited for
portable electronics (e.g., cellular telephones, PDAs,
notebook computers) because of its small package
and low weight. The CSPEMI201AG is available in a
space-saving, low-profile Chip Scale Package with
RoHS compliant lead-free finishing.
Applications
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EMI filtering and ESD protection for headset
speaker ports
Wireless Handsets
Handheld PCs / PDAs
MP3 Players
Digital Camcorders
Notebooks
Desktop PCs
©2010 SCILLC. All rights reserved.
April 2010 Rev. 3
Publication Order Number:
CSPEMI201AG/D
ONSEMI [ ON SEMICONDUCTOR ]
