cspemi205 California Micro Devices Corporation, cspemi205 Datasheet

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cspemi205

Manufacturer Part Number
cspemi205
Description
3 Channel Headset Emi Filter With Esd Protection
Manufacturer
California Micro Devices Corporation
Datasheet

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cspemi205G
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Features
Applications
© 2008 California Micro Devices Corp. All rights reserved.
Electrical Schematic
Three channels of EMI filtering, two for earpiece
speakers and one for a microphone
Pi-style EMI filters in a capacitor-resistor-capacitor
(C-R-C) network
Chip Scale Package features extremely low para-
sitic inductance for optimum filter performance
Greater than 30dB relative attenuation in the 800-
2700MHz range
+
(IEC 61000-4-2 Level 4, contact discharge)
+
8-bump, 1.41mm X 1.430mm footprint Chip Scale
Package (CSP)
RoHS compliant (lead-free) finishing
EMI filtering and ESD protection for headset micro-
phone and speaker
Cellular / Mobile Phones
Notebooks and Personal Computers
Handheld PCs / PDAs / Tablets
Wireless Handsets
Digital Camcorders
Earpiece 1
Earpiece 2
8kV ESD protection on each channel
15kV ESD protection on each channel (HBM)
Input
Input
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
A1
A3
3 Channel Headset EMI Filter with ESD Protection
10 Ω
10 Ω
C1
C3
Earpiece 1
Output
Earpiece 2
Output
Issue B – 04/30/08
Tel: 408.263.3214
Product Description
The CSPEMI205 is a low-pass filter array integrating
three pi-style filters (C-R-C) that reduce EMI/RFI emis-
sions while at the same time providing ESD protection.
This device is custom-designed to interface with the
headset port on a cellular telephone, and contains two
different filter values. Each high quality filter provides
more than 30dB attenuation in the 800-2700 MHz
range. These pi-style filters support bidirectional filter-
ing, controlling EMI both to and from the microphone
and speaker elements. They also support bipolar sig-
nals, enabling audio signals to pass through without
distortion.
In addition, the CSPEMI205 provides a very high level
of protection for sensitive electronic components that
may be subject to electrostatic discharge (ESD). The
input pins safely dissipate ESD strikes of
maximum requirement of the IEC 61000-4-2 interna-
tional 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
The CSPEMI205 is particularly well suited for portable
electronics (e.g., cellular telephones, PDAs, notebook
computers) because of its small package format and
low weight. The CSPEMI205 is available in a space-
saving, low-profile Chip Scale Package with RoHS
compliant lead-free finishing.
Microphone
Input
A5
+
15kV.
Fax: 408.263.7846
GND
GND
B2
B4
68 Ω
CSPEMI205
www.cmd.com
C5
Microphone
Output
+
8kV, the
1

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cspemi205 Summary of contents

Page 1

... They also support bipolar sig- nals, enabling audio signals to pass through without distortion. In addition, the CSPEMI205 provides a very high level of protection for sensitive electronic components that may be subject to electrostatic discharge (ESD). The input pins safely dissipate ESD strikes of maximum requirement of the IEC 61000-4-2 interna- tional standard ...

Page 2

... Device Ground Earpiece Output 1 (to earpiece) Earpiece Output 2 (to earpiece) Microphone Output (to audio circuitry) PART NUMBERING INFORMATION Package Ordering Part Number CSP CSPEMI205G ● Tel: 408.263.3214 Issue B – 04/30/08 CSPEMI205 BOTTOM VIEW (Bumps Up View) MIC_IN EAR2_IN EAR1_IN Orientation Marking GND GND ...

Page 3

... N. McCarthy Blvd., Milpitas, CA 95035-5112 ABSOLUTE MAXIMUM RATINGS CONDITIONS V =5. 10mA LOAD Notes 2,4 and 5 Notes 2,3,4 and 10Ω 100pF R = 68Ω 47pF =50Ω ● Tel: 408.263.3214 Issue B – 04/30/08 CSPEMI205 RATING -65 to +150 100 300 RATING -40 to +85 (NOTE 1) MIN TYP MAX ...

Page 4

... Typical Filter Performance (nominal conditions unless specified otherwise, 50 Ohm Environment) Figure 1. Earpiece Circuit (A1-C1) EMI Filter Performance Figure 2. Earpiece Circuit (A3-C3) EMI Filter Performance © 2008 California Micro Devices Corp. All rights reserved. 4 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● ● Tel: 408.263.3214 Fax: 408.263.7846 Issue B – 04/30/08 CSPEMI205 ● www.cmd.com ...

Page 5

... Typical Filter Performance (nominal conditions unless specified otherwise, 50 Ohm Environment) Figure 3. Microphone Circuit (A5-C5) EMI Filter Performance © 2008 California Micro Devices Corp. All rights reserved. 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● ● Tel: 408.263.3214 Fax: 408.263.7846 Issue B – 04/30/08 CSPEMI205 ● 5 www.cmd.com ...

Page 6

... Solder Mask Opening 0.325mm DIA. 0 1:00.0 2:00.0 3:00.0 Time (minutes) Figure 5. Lead-free (SnAgCu) Solder Ball Reflow Profile ● Tel: 408.263.3214 Issue B – 04/30/08 CSPEMI205 VALUE 0.275mm Round Non-Solder Mask defined pads 0.325mm Round 0.125 - 0.150mm 0.330mm Round 50/50 by volume No Clean OSP (Entek Cu Plus 106A) +50μm +20μm 60 seconds 260° ...

Page 7

... Mechanical Details CSP Mechanical Specifications The CSPEMI205 is supplied in a custom Chip Scale Package (CSP). Dimensions are presented below. For complete information on CMD’s chip scale packaging, see the California Micro Devices CSP Package Infor- mation document. PACKAGE DIMENSIONS Package Custom CSP ...

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