PRELIMINARY
CM1419
Praetorian™
L-C EMI Filter with ESD Protection
for Headset Speaker Applications
Features
•
•
•
•
•
•
•
•
2 channels of EMI filtering
±
30kV ESD protection
(IEC 61000-4-2, contact discharge)
±
30kV ESD protection (HBM)
OptiGuard Coating for improved reliability at
assembly
Greater than 30dB of attenuation at 1GHz
5-bump, 1.590mm x 1.220mm footprint Chip Scale
Package (CSP)
Lead-free version available
Product Description
California Micro Devices’ CM1419 is an L-C EMI filter
array with ESD protection, which integrates two Pi-
filters (C-L-C) for the headset speaker. The CM1419
has component values of 117pF-3.0nH-117pF. The
parts include ESD protection diodes on all input/output
pins, which provide a very high level of protection for
sensitive electronic components that may be subjected
to electrostatic discharge (ESD). The ESD diodes
connected to the filter ports safely dissipate ESD
strikes of
±
30kV, beyond the maximum requirement of
the IEC61000-4-2 international 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
electronics (e.g. mobile handsets, PDAs, notebook
computers) because of its small package format and
easy-to-use pin assignments.
In particular, the
CM1419 is ideal for EMI filtering and protecting
speaker output lines from ESD for the headset speaker
in mobile handsets. Most speakers have impedance of
8
Ω
and in order to maximize the power output, the
resistance of an EMI filter needs to be as low as
possible and the CM1419 addresses this by having a
C-L-C based EMI filter where the inductor has less
than 0.35
Ω
of resistance.
The CM1419 is available either uncoated or with
Opti-
Guard
™
coating resulting in improved reliability at
assembly. The CM1419 is also available in a space
saving, low profile Chip Scale Package with optional
lead-free finishing.
Applications
•
•
•
Headset Speaker port 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.
Electrical Schematic
FILTER #1
A1
3nH
C1
117pF
FILTER #1
117pF
FILTER #2
A3
3nH
C3
117pF
FILTER #2
117pF
GND
B2
© 2005 California Micro Devices Corp. All rights reserved.
12/13/05
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
●
Tel: 408.263.3214
●
Fax: 408.263.7846
●
www.cmd.com
1
PRELIMINARY
CM1419
PACKAGE / PINOUT DIAGRAMS
TOP VIEW
(Bumps Down View)
Orientation
Marking
(see note 2)
BOTTOM VIEW
(Bumps Up View)
1
A
B
C
2
3
Filter #1
Filter #2
XX
C1
Orientation
Marking
Filter #1
C3
B2
GND
Filter #2
A1
A3
A1
Notes:
1)
These drawings are not to scale.
2)
Lead-free devices are specified by using a "+" character for the top side orientation mark.
CM1419
CSP Package
PIN DESCRIPTIONS
PIN
A1
C1
A3
C3
B2
NAME
Filter #1
Filter #1
Filter #2
Filter #2
GND
DESCRIPTION
Filter #1 Input
Filter #1 Input
Filter #2 Input
Filter #2 Input
Device Ground
Ordering Information
PART NUMBERING INFORMATION
Standard Finish
Pins
5
5
Package
CSP
CSP
OptiGuard
™
Coating
Y
N
Ordering Part
Number
1
CM1419-02CS
CM1419-0BCS
Part Marking
CH
AM
Lead-free Finish
2
Ordering Part
Number
1
CM1419-02CP
CM1419-0BCP
Part Marking
CH
AM
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.
© 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
12/13/05
PRELIMINARY
CM1419
Specifications
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Storage Temperature Range
DC Current per Inductor
DC Package Power Rating
RATING
-65 to +150
30
0.5
UNITS
°C
mA
W
STANDARD OPERATING CONDITIONS
PARAMETER
Operating Temperature Range
RATING
-40 to +85
UNITS
°C
ELECTRICAL OPERATING CHARACTERISTICS
(SEE NOTE 1)
SYMBOL
L
R
C
TOT
C
1
V
ST
I
LEAK
V
SIG
PARAMETER
Inductance
DC Channel Resistance
Total Channel Capacitance
Capacitance C
1
Stand-off Voltage
Diode Leakage Current
Signal Clamp Voltage
Positive Clamp
Negative Clamp
In-system ESD Withstand Voltage
a) Human Body Model, MIL-STD-883,
Method 3015
b) Contact Discharge per IEC 61000-4-2
Level 4
Dynamic Resistance
Positive
Negative
Cut-off frequency
Z
SOURCE
= 50Ω, Z
LOAD
= 50Ω
L = 3nH, C = 117pF
2.5V dc; 1MHz, 30mV ac
2.5V dc; 1MHz, 30mV ac
I = 10μA
V
IN
=
±
3.3V
I
LOAD
= 10mA
I
LOAD
= -10mA
Notes 2 and 3
±30
±30
kV
kV
5.6
-9.0
187
93
CONDITIONS
MIN
TYP
3.0
0.28
234
117
6.0
0.1
6.8
-6.8
1.0
9.0
-5.6
0.35
281
140
MAX
UNITS
nH
Ω
pF
pF
V
μA
V
V
V
ESD
R
DYN
0.95
0.90
22
Ω
Ω
MHz
f
C
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: These parameters are guaranteed by design and characterization.
© 2005 California Micro Devices Corp. All rights reserved.
12/13/05
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
●
Tel: 408.263.3214
●
Fax: 408.263.7846
●
www.cmd.com
3
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