2005 California Micro Devices Corp. All rights reserved.
11/02/05
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
1
CM1402
SIM Card EMI Filter Array with ESD Protection
Features
Functionally and pin compatible with CMD's
CSPEMI400
OptiGuard
TM
coated for improved reliability at
assembly
Three channels of EMI filtering, each with ESD
protection
Two additional channels of ESD-only protection
10kV ESD protection (IEC 61000-4-2, contact
discharge) on all pins
25kV ESD protection (HBM)
Greater than 30dB of attenuation at 1GHz
10-bump, 1.960mm x 1.330mm footprint Chip
Scale Package (CSP)
Chip Scale Package features extremely low
lead inductance for optimum filter and ESD
performance
Lead-free version available
Applications
SIM Card slot in mobile handsets
I/O port protection for mobile handsets, notebook
computers, PDAs, etc.
EMI filtering for data ports in cell phones, PDAs or
notebook computers
Product Description
CAMD's CM1402 is an EMI filter array with ESD pro-
tection, which integrates three pi filters (C-R-C) and
two additional channels of ESD protection. The
CM1402 has component values of 20pF-47
-20pF,
and 20pF-100
-20pF. The parts include avalanche-
type ESD diodes on every pin, which provide a very
high level of protection for sensitive electronic compo-
nents that may be subjected to electrostatic discharge
(ESD). The ESD diodes connected to the filter ports
are designed and characterized to safely dissipate
ESD strikes of
10kV, beyond the maximum require-
ment of the IEC 61000-4-2 international standard.
Using the MIL-STD-883 (Method 3015) specification
for Human Body Model (HBM) ESD, the pins are pro-
tected for contact discharges at greater than
25kV.
The ESD diodes on pins A4 and C4 ports are designed
and characterized to safely dissipate ESD strikes of
10kV, well beyond the maximum requirement of the
IEC 61000-4-2 international standard.
This device is particularly well suited for portable elec-
tronics (e.g. mobile handsets, PDAs, notebook com-
puters) because of its small package format and easy-
to-use pin assignments. In particular, the CM1402 is
ideal for EMI filtering and protecting data lines from
ESD for the SIM card slot in mobile handsets.
The CM1402 incorporates OptiGuard
TM
coating which
results in improved reliability at assembly.The CM1402
is available in a space-saving, low-profile Chip Scale
Package with optional lead-free finishing.
Electrical Schematic
R
1
C
C
C1
B1,B2
GND
A1
R
2
C
C
C2
A2
C
C
C4
A4
R
1
C
C
C3
A3
R
1
=100
R
2
=47
2005 California Micro Devices Corp. All rights reserved.
2
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
11/02/05
CM1402
Ordering Information
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.
Note 2: Lead-free devices are specified by using a "
+
" character for the top side orientation mark.
PIN DESCRIPTIONS
TYPE
PIN
DESCRIPTION
EMI
Filter
A1
EMI Filter with ESD Protection for RST Signal
C1
EMI Filter with ESD Protection for RST Signal
EMI
Filter
A2
EMI Filter with ESD Protection for CLK Signal
C2
EMI Filter with ESD Protection for CLK Signal
Device
Ground
B1
Device Ground
B2
Device Ground
EMI
Filter
A3
EMI Filter with ESD Protection for DAT Signal
C3
EMI Filter with ESD Protection for DAT Signal
ESD Channel
A4
ESD Protection Channel - V
CC
Supply
ESD Channel
C4
ESD Protection Channel
C3
C4
Orientation
Marking
C2
B1
B2
A2
A3
C1
A1
A4
A1
CE
3
1
4
2
C
B
A
Orientation
Marking
(see note 2)
PACKAGE / PINOUT DIAGRAMS
Notes:
TOP VIEW
CM1402
CSP Package with
BOTTOM VIEW
(Bumps Down View)
(Bumps Up View)
1) These drawings are not to scale.
2) Lead-free devices are specified by using a "
+
" character for the top side orientation mark.
OptiGuard
TM Coating
PART NUMBERING INFORMATION
Bumps
Package
Standard Finish
Lead-free Finish
2
Ordering Part
Number
1
Part Marking
Ordering Part
Number
1
Part Marking
10
CSP
CM1402-03CS
CE
CM1402-03CP
CE
2005 California Micro Devices Corp. All rights reserved.
11/02/05
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
3
CM1402
Specifications
Note 1: T
A
=25
C unless otherwise specified.
Note 2: ESD applied to input and output pins with respect to GND, one at a time.
Note 3: Clamping voltage is measured at the opposite side of the EMI filter to the ESD pin. For example, if ESD is applied to Pin A1,
then clamping voltage is measured at Pin C1.
Note 4: Unused pins are left open
Note 5: The parameters are guaranteed by design.
ABSOLUTE MAXIMUM RATINGS
PARAMETER
RATING
UNITS
Storage Temperature Range
-65 to +150
C
DC Power per Resistor
100
mW
DC Package Power Rating
300
mW
STANDARD OPERATING CONDITIONS
PARAMETER
RATING
UNITS
Operating Temperature Range
-40 to +85
C
ELECTRICAL OPERATING CHARACTERISTICS
1
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
R
1
Resistance of R
1
80
100
120
R
2
Resistance of R
2
38
47
56
C
Capacitance
V
IN
= 2.5VDC, 1MHz,
30mV ac
16
20
24
pF
V
STANDOFF
Stand-off Voltage
I = 10
A
6.0
V
I
LEAK
Diode Leakage Current
V
BIAS
= 3.3V
0.1
1.0
A
V
SIG
Signal Voltage
Positive Clamp
Negative Clamp
I
LOAD
= 10mA
I
LOAD
= -10mA
5.6
-1.5
6.8
-0.8
9.0
-0.4
V
V
V
ESD
In-system ESD Withstand Voltage
a) Human Body Model, MIL-STD-883,
Method 3015
b) Contact Discharge per IEC
61000-4-2
Notes 2,4 and 5
25
10
kV
kV
V
CL
Clamping Voltage during ESD Discharge
MIL-STD-883 (Method 3015), 8kV
Positive Transients
Negative Transients
Notes 2,3,4 and 5
+12
-7
V
V
f
C1
Cut-off frequency
Z
SOURCE
= 50
, Z
LOAD
= 50
R = 100
, C = 20pF
77
MHz
f
C2
Cut-off frequency
Z
SOURCE
= 50
, Z
LOAD
= 50
R = 47
, C = 20pF
85
MHz
2005 California Micro Devices Corp. All rights reserved.
4
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
11/02/05
CM1402
Performance Information
Typical Filter Performance (nominal conditions unless specified otherwise, 50 Ohm Environment)
Figure 1. A1-C1 EMI Filter Performance
Figure 2. A2-C2 EMI Filter Performance
2005 California Micro Devices Corp. All rights reserved.
11/02/05
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
5
CM1402
Performance Information (cont'd)
Typical Filter Performance (nominal conditions unless specified otherwise, 50 Ohm Environment)
Figure 3. A3-C3 EMI Filter Performance
Figure 4. Typical Diode Capacitance vs. Input Voltage (normalized to 2.5VDC)
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