CM1415
3 Channel Headset EMI Filter with ESD Protection
Features
•
•
•
•
•
•
•
•
•
•
Functionally and pin compatible with California
Micro Device’s CSPEMI205
Optiguard
™
coated for improved reliability at
assembly
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
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)
8-bump, 1.41mm X 1.45mm footprint
Chip Scale Package (CSP)
Chip Scale Package features extremely low para-
sitic inductance for optimum filter performance
Lead-free version available
Product Description
The CM1415 is a low-pass filter array integrating three
pi-style filters (C-R-C) that reduce EMI/RFI emissions
while at the same time providing ESD protection. This
device is custom-designed to interface with the head-
set port on a cellular telephone, and contains two dif-
ferent 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 CM1415 provides a very high level of
protection for sensitive electronic components that may
be subject to electrostatic discharge (ESD). The input
pins are designed and characterized to safely dissipate
ESD strikes of
+
8kV, the maximum requirement of the
IEC 61000-4-2 international 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
+
15kV.
The CM1415 is particularly well suited for portable
electronics (e.g., cellular telephones, PDAs, notebook
computers) because of its small package format and
low weight.
The CM1415 incorporates Optiguard
™
coating which
results in improved reliability at assembly. The CM1415
is available in a space-saving, low-profile Chip Scale
Package with optional lead-free finishing.
Applications
•
•
•
•
•
•
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
Electrical Schematic
10
Ω
Earpiece 1 A1
Input
100pF
100pF
C1 Earpiece 1
Output
Microphone A5
Input
47pF
47pF
68
Ω
C5 Microphone
Output
10
Ω
Earpiece 2 A3
Input
100pF
100pF
C3
Earpiece 2
Output
GND
GND
B2
B4
© 2004 California Micro Devices Corp. All rights reserved.
05/13/04
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲
Tel: 408.263.3214
▲
Fax: 408.263.7846
▲
www.calmicro.com
1
CM1415
PACKAGE / PINOUT DIAGRAMS
TOP VIEW
(Bumps Down View)
Orientation
Marking
(se note 2)
BOTTOM VIEW
(Bumps Up View)
MIC_IN
EAR2_IN
EAR1_IN
1 2 3 4 5
A
B
C
CM1415
CSP Package
A5
A3
GND
GND
A1
B2
A1
Orientation
Marking
CD
B4
C5
C3
MIC_OUT EAR2_OUT EAR1_OUT
C1
Note:
1) These drawings are not to scale.
2) Lead-free devices are specified by using a "+" character for the top side orientation mark.
PIN DESCRIPTIONS
PIN
A1
A3
A5
B2
B4
C1
C3
C5
NAME
EAR1_IN
EAR2_IN
MIC_IN
GND
GND
EAR1_OUT
EAR2_OUT
MIC_OUT
DESCRIPTION
Earpiece Input 1 (from audio circuitry)
Earpiece Input 2 (from audio circuitry)
Microphone Input (from microphone)
Device Ground
Device Ground
Earpiece Output 1 (to earpiece)
Earpiece Output 2 (to earpiece)
Microphone Output (to audio circuitry)
Ordering Information
PART NUMBERING INFORMATION
Standard Finish
Ordering Part
Bumps
8
Package
CSP
Number
1
CM1415-03CS
Part Marking
CD
Lead-free Finish
2
Ordering Part
Number
1
CM1415-03CP
Part Marking
CD
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.
© 2004 California Micro Devices Corp. All rights reserved.
2
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲
Tel: 408.263.3214
▲
Fax: 408.263.7846
▲
www.calmicro.com
05/13/04
CM1415
Specifications
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Storage Temperature Range
DC Power per Resistor
DC Package Power Rating
RATING
-65 to +150
100
300
UNITS
°C
mW
mW
STANDARD OPERATING CONDITIONS
PARAMETER
Operating Temperature Range
RATING
-40 to +85
UNITS
°C
ELECTRICAL OPERATING CHARACTERISTICS
1
SYMBOL
R
1
R
2
C
1
C
2
I
LEAK
V
SIG
PARAMETER
Resistance
Resistance
Capacitance
Capacitance
Diode Leakage Current
Signal 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
Clamping Voltage during ESD Discharge
MIL-STD-883 (Method 3015), 8kV
Positive Transients
Negative Transients
Cut-off frequency 1; Note 6
Cut-off frequency 2; Note 6
V
IN
=5.0V
I
LOAD
= 10mA
5
-5
Notes 2,4 and 5
±15
±8
Notes 2,3,4 and 5
+15
-19
R = 10Ω, C = 100pF
R = 68Ω, C = 47pF
34
63
V
V
MHz
MHz
kV
kV
7
-10
15
-15
V
V
CONDITIONS
MIN
9
54
80
38
TYP
10
68
100
47
MAX
11
75
120
57
1.0
UNITS
Ω
Ω
pF
pF
µA
V
ESD
V
CL
f
C1
f
C2
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.
Note 6: Z
SOURCE
=50Ω, Z
LOAD
=50Ω
© 2004 California Micro Devices Corp. All rights reserved.
05/13/04
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲
Tel: 408.263.3214
▲
Fax: 408.263.7846
▲
www.calmicro.com
3
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