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PDF CM1425 Data sheet ( Hoja de datos )
| Número de pieza | CM1425 | |
| Descripción | 4 Channel EMI Filter Array with ESD Protection | |
| Fabricantes | California Micro Devices | |
| Logotipo |  |
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PRELIMINARY
CM1425www.DataSheet4U.com
4 Channel EMI Filter Array with ESD Protection
Features
• Four channels of EMI filtering with ESD protection
• Pin compatible with CMD’s CSPRC032A
• Greater than 30dB attenuation over the 800MHz to
3GHz frequency range
• ±15kV ESD protection (IEC 61000-4-2, contact
discharge)
• ±30kV ESD protection (HBM)
• 9-bump, 2.470mm x 0.970mm footprint Chip Scale
Package (CSP)
• Available with Optiguard™ coating for improved
reliability
• Lead-free versions available
Applications
• FIltering for antenna and keypad data lines
• I/O port protection for mobile handsets, notebook
computers, PDAs etc.
• EMI filtering for data ports in cell phones, PDAs or
notebook computers.
• EMI filtering for LCD and chip-to-chip data lines in
mobile electronic devices that use flexible PCB
interconnections
Product Description
CAMD's CM1425 is an EMI filter array with ESD pro-
tection, which integrates 4 pi filters (C-R-C). The
CM1425 has component values of 20pF-100Ω-20pF.
The parts include ESD protection diodes on every pin,
which provide a very high level of protection for sensi-
tive electronic components that may be subjected to
electrostatic discharge (ESD). The ESD diodes con-
nected to the filter ports are designed and character-
ized to safely dissipate ESD strikes of ±15kV, beyond
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 pins are protected for contact discharges at
greater than ±30kV.
This device is particularly well suited for portable elec-
tronics (e.g. mobile handsets, PDAs, notebook comput-
ers) because of its small package format and easy-to-
use pin assignments. In particular, the CM1425 is
ideal for EMI filtering and protecting data lines from
ESD in wireless handsets.
All CM1425 devices are optionally available with Opti-
Guard™ coating which results in improved reliability at
assembly. These devices are also available with stan-
dard and lead-free finishing. The CM1425 is housed in
a space-saving, low-profile, chip-scale package and is
fabricated with California Micro Devices' Centurion™
processes.
Electrical Schematic
FILTER+ESD1*
100Ω
20pF
20pF
FILTER+ESD1* FILTER+ESD3*
GND
(Pin B3)
100Ω
20pF
20pF
FILTER+ESD3*
FILTER+ESD2*
100Ω
20pF
20pF
FILTER+ESD2* FILTER+ESD4*
100Ω
20pF
20pF
FILTER+ESD4*
© 2004 California Micro Devices Corp. All rights reserved.
04/21/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com
1
1 page  
PRELIMINARY
CM1425www.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
Soldering Maximum Temperature
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°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
Figure 4. Eutectic (SnPb) Solder
Ball Reflow Profile
250
200
150
100
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
© 2004 California Micro Devices Corp. All rights reserved.
04/21/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲ Tel: 408.263.3214 ▲ Fax: 408.263.7846 ▲ www.calmicro.com
5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet CM1425.PDF ] | |
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