CSPEMI307A
4-Channel ESD/EMI Filter Array plus
4-Channel ESD Array for USB
Features
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Four channels of combined EMI/RFI filtering +
ESD protection
Four additional channels of ESD-only protection
EMI/ESD channels provide greater than 32dB
attenuation at 1GHz
+
15kV ESD protection on all channels
(IEC 61000-4-2 Level 4, contact discharge)
+
30kV ESD protection on all channels (HBM)
Chip Scale Package features extremely low
lead inductance for optimum filter and ESD
performance
15-bump, 2.960mm X 1.330mm footprint
Chip Scale Package (CSP)
Lead-free version available
Product Description
The CSPEMI307A is a multichannel EMI/ESD array
offering a combination of four low-pass filter + ESD
channels to reduce EMI/RFI emissions on a data port
and four dedicated ESD-only channels intended specif-
ically for ESD protection on a USB port. Each EMI/RFI
channel integrates a high quality pi-style filter (C-R-C)
which provides greater than 30dB attenuation in the
800-2700 MHz range. These pi-style filters support
bidirectional filtering, controlling EMI both to and from a
data port connector.
The CSPEMI307A provides a high-level of ESD protec-
tion on all eight channels for sensitive electronic com-
ponents that may be subjected to electrostatic
discharge (ESD). The input pins are designed and
characterized to safely dissipate ESD strikes of 15kV,
exceeding 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 30kV.
The CSPEMI307A is particularly well suited for porta-
ble electronics (e.g., cellular telephones, PDAs, note-
book computers) because of its small package footprint
and low weight. The CSPEMI307A is available in a
space-saving, low-profile Chip Scale Package with
optional lead-free finishing.
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Applications
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EMI filtering and ESD protection for both data and
I/O ports
Outer 4 channels provide ESD protection for
USB lines and other I/O port applications
Wireless Handsets
Handheld PCs / PDAs
MP3 Players
Notebooks
Desktop PCs
Electrical Schematic
100Ω
FILTER+ESDn*
30pF
30pF
FILTER+ESDn*
ESDn*
30pF
GND
(Pins B1-B3)
1 of 4 EMI/RFI + ESD Channels.
* See Package/Pinout Diagram for expanded pin information
1 of 4 ESD-only Channels
© 2003 California Micro Devices Corp. All rights reserved.
10/10/03
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
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Tel: 408.263.3214
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Fax: 408.263.7846
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www.calmicro.com
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CALMIRCO [ CALIFORNIA MICRO DEVICES CORP ]
