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PDF CSPEMI204 Data sheet ( Hoja de datos )
| Número de pieza | CSPEMI204 | |
| Descripción | 2 Channel Headset EMI Filter with ESD Protection | |
| Fabricantes | California Micro Devices | |
| Logotipo |  |
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CSPEMI204www.DataSheet4U.com
2 Channel Headset EMI Filter with ESD Protection
Features
• Two channels of EMI filtering, one for a micro-
phone and one for an earpiece speaker
• 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
• ±8kV ESD protection on each channel (IEC 61000-
4-2 Level 4, contact discharge)
• ±15kV ESD protection on each channel (HBM)
• 5-bump, 0.930mm X 1.410mm footprint
Chip Scale Package (CSP)
• Lead-free version available
Applications
• EMI filtering and ESD protection for headset micro-
phone and earpiece speaker ports
• Cellular / Mobile Phones
• Notebooks and Personal Computers
• Handheld PCs / PDAs / Tablets
• Wireless Handsets
• Digital Camcorders
Product Description
The CSPEMI204 is a low-pass filter array designed
specifically to reduce EMI/RFI emissions and provide
ESD protection for a headset port on a cellular and
mobile devices. The CSPEMI204 integrates two high
quality, pi-style filters (C-R-C) filters, one for a micro-
phone and one for an earpiece or speaker, each pro-
viding more than 30dB attenuation relative to the pass
band attenuation in the 800-2700 MHz range. These
filters support bidirectional filtering, reducing EMI both
to and from the headset port and support bipolar audio
signals without distortion.
In addition, the CSPEMI204 provides a very high level
of protection for sensitive electronic components that
may be subject to electrostatic discharge (ESD). The
CSPEMI204 can safely dissipate ESD strikes of ±8kV,
the maximum requirement of the IEC 61000-4-2 inter-
national standard. Using the MIL-STD-883 (Method
3015) specification for Human Body Model (HBM)
ESD, the device provides protection for contact dis-
charges to greater than ±15kV. The CSPEMI204 pro-
tects sensitive components such as CPU and DSPs
that have much weaker internal ESD protection cir-
cuitry usually only intended for mechanical handling
protection.
The CSPEMI204 is particularly well-suited for portable
electronics because of its small package format and
low weight. The CSPEMI204 is available in a space-
saving, low-profile Chip Scale Package with optional
lead-free finishing.
Electrical Schematic
Earpiece A1
Input
10 Ω
C1 Earpiece
Output
Microphone A3
Input
GND B2
68 Ω
C3 Microphone
Output
© 2005 California Micro Devices Corp. All rights reserved.
09/28/05
490 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.cmd.com
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1 page  
CSPEMI204www.DataSheet4U.com
Application Information
Refer to Application Note AP-217, "The Chip Scale Package", for a detailed description of Chip Scale Packages
offered by California Micro Devices.
PRINTED CIRCUIT BOARD RECOMMENDATIONS
PARAMETER
Pad Size on PCB
Pad Shape
Pad Definition
Solder Mask Opening
Solder Stencil Thickness
Solder Stencil Aperture Opening (laser cut, 5% tapered walls)
Solder Flux Ratio
Solder Paste Type
Pad Protective Finish
Tolerance — Edge To Corner Ball
Solder Ball Side Coplanarity
Maximum Dwell Time Above Liquidous (183°C)
Maximum Soldering Temperature for EutecticDevices using Eutectic Solder Paste
Maximum Soldering Temperature for Lead-free Devices using Lead-free Solder Paste
VALUE
0.275mm
Round
Non-Solder Mask defined pads
0.325mm Round
0.125mm - 0.150mm
0.330mm Round
50/50 by volume
No Clean
OSP (Entek Cu Plus 106A)
+50μm
+20μm
60 seconds
240°C
260°C
Non-Solder Mask Defined Pad
0.275mm DIA.
Solder Stencil Opening
0.330mm DIA.
Solder Mask Opening
0.325mm DIA.
Figure 3. Recommended Non-Solder Mask Defined Pad Illustration
250
200
150
100
Figure 4. Eutectic (SnPb) Solder
Ball Reflow Profile
50
0
1:00.0
2:00.0
3:00.0
4:00.0
Time (minutes)
Figure 5. Lead-free (SnAgCu) Solder
Ball Reflow Profile
© 2005 California Micro Devices Corp. All rights reserved.
09/28/05
490 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.cmd.com
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet CSPEMI204.PDF ] | |
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