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PDF CSPEMI307A Data sheet ( Hoja de datos )
| Número de pieza | CSPEMI307A | |
| Descripción | 4-Channel ESD/EMI Filter Array plus 4-Channel ESD Array for USB | |
| Fabricantes | California Micro Devices | |
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4-Channel ESD/EMI Filter Array plus
4-Channel ESD Array for USB
Features
• 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
Applications
• 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
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.
Electrical Schematic
FILTER+ESDn*
100Ω
30pF
30pF
FILTER+ESDn*
ESDn*
30pF
GND
(Pins B1-B3)
1 of 4 EMI/RFI + ESD Channels.
1 of 4 ESD-only Channels
* See Package/Pinout Diagram for expanded pin information
© 2003 California Micro Devices Corp. All rights reserved.
10/10/03 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 L Tel: 408.263.3214
L Fax: 408.263.7846 L www.calmicro.com
1
1 page  
Performance Information
Typical Filter Performance (TA=25°C, DC Bias=0V, 50 Ohm Environment)
CwwSwP.DaEtaMSheIe3t40U.7coAm
Figure 3. Insertion Loss VS. Frequency (A4-C4 to GND B2)
Figure 4. Insertion Loss VS. Frequency (A5-C5 to GND B2)
© 2003 California Micro Devices Corp. All rights reserved.
10/10/03 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 L Tel: 408.263.3214
L Fax: 408.263.7846 L www.calmicro.com
5
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| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet CSPEMI307A.PDF ] | |
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