CM1410
4 Channel Headset EMI Filter with ESD Protection
Features
•
•
•
•
•
•
•
•
•
•
•
•
Functionally and pin compatible with CSPEMI200A
device
Pi-style EMI filters in a capacitor-resistor-capacitor
(C-R-C) network
Four channels of EMI filtering with ESD protection
Includes 1 channel of ESD-only protection
Greater than 30dB attenuation at 1GHz
+
8kV ESD protection on each channel
(IEC 61000-4-2 Level 4, contact discharge)
+
15kV ESD protection on each channel (HBM)
Supports bipolar signals—ideal for
audio applications
Chip Scale Package features extremely low
lead inductance for optimum filter and ESD
performance
11-bump, 2.046mm X 1.436mm footprint
Chip Scale Package (CSP)
Optiguard
™
coated for improved reliability at
assembly
Lead-free version available
Product Description
The CM1410 is a quad low-pass filter array integrating
four pi-style filters (C-R-C) that reduce EMI/RFI emis-
sions while at the same time providing ESD protection.
This device is custom-designed to interface with the
headset port on a cellular telephone, and contains 3
different filter values. Each high quality filter provides
more than 20dB 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 CM1410 provides a very high level of
protection for sensitive electronic components that may
be subject to electrostatic discharge (ESD). The
CM1410 can safely dissipate ESD strikes of
+
8kV, the
maximum requirement of the IEC 61000-4-2 interna-
tional 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 CM1410 also includes a sin-
gle channel of ESD-only protection.
The CM1410 is particularly well suited for portable
electronics (e.g., cellular telephones, PDAs, notebook
computers) because of its small package format and
low weight.
The CM1410 incorporates
Optiguard
™
coating which
results in improved reliability at assembly.The CM1410
is available in a space-saving, low-profile Chip Scale
Package with optional lead-free finishing.
Applications
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•
•
•
•
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EMI filtering and ESD protection for audio ports
Wireless Handsets
Handheld PCs / PDAs
MP3 Players
Digital Camcorders
Notebooks
Desktop PCs
Electrical Schematic
MIC_IN1
B1
100Ω
C1
MIC_OUT1
SPKR_IN1
C3
100pF
10Ω
A3
SPKR_OUT1
100pF
47pF
47pF
MIC_IN2
A2
68Ω
C2
MIC_OUT2
SPKR_IN2
C4
100pF
10Ω
A4
SPKR_OUT2
100pF
GND
GND
B3
B4
47pF
47pF
B2
ESD1
©
2005 California Micro Devices Corp. All rights reserved.
09/15/05
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲
Tel: 408.263.3214
▲
Fax: 408.263.7846
▲
www.calmicro.com
1
CM1410
PACKAGE / PINOUT DIAGRAMS
TOP VIEW
(Bumps Down View)
Orientation
Marking
(see note 2)
BOTTOM VIEW
(Bumps Up View)
MIC_OUT1 MIC_OUT2 SPKR_IN1 SPKR_IN2
1
A
B
C
2
3
4
C1
C2
ESD1
C3
GND
C4
GND
N103
MIC_IN1
B1
Orientation
Marking
B2
A2
B3
A3
B4
A4
MIC_IN2 SPKR_OUT1 SPKR_OUT2
A1
Notes:
CSP Package
1) These drawings are not to scale.
2) Lead-free devices are specified by using a "
+
" character for the top side orientation mark.
CM1410
PIN DESCRIPTIONS
PIN
A1
A2
A3
A4
B1
B2
B3
B4
C1
C2
C3
C4
NAME
N.B.
MIC_IN2
SPKR_OUT1
SPKR_OUT2
MIC_IN1
ESD1
GND
GND
MIC_OUT1
MIC_OUT2
SPKR_IN1
SPKR_IN2
DESCRIPTION
No Bump – used for orientation / alignment
Microphone Input 2 (from microphone)
Speaker Output 1 (to speaker)
Speaker Output 2 (to speaker)
Microphone Input 1 (from microphone)
ESD Protection Input. Provides a channel specifically for ESD protection purposes.
Device Ground
Device Ground
Microphone Output 1 (to audio circuitry)
Microphone Output 2 (to audio circuitry)
Speaker Input 1 (from audio circuitry)
Speaker Input 2 (from audio circuitry)
Ordering Information
PART NUMBERING INFORMATION
Standard Finish
Bumps
11
Package
CSP
Ordering Part
Number
1
CM1410-03CS
Part Marking
N103
Lead-free Finish
2
Ordering Part
Number
1
CM1410-03CP
Part Marking
N103
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.calmicro.com
09/15/05
CM1410
Specifications
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Storage Temperature Range
DC Power per Resistor
DC Package Power Rating
RATING
-65 to +150
100
400
UNITS
°C
mW
mW
STANDARD OPERATING CONDITIONS
PARAMETER
Operating Temperature Range
RATING
-40 to +85
UNITS
°C
ELECTRICAL OPERATING CHARACTERISTICS
(NOTE 1)
SYMBOL
R
1
R
2
R
3
C
1
C
2
I
LEAK
V
SIG
PARAMETER
Resistance 1
Resistance 2
Resistance 3
Capacitance 1
Capacitance 2
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
Cut-off frequency 3; Note 6
V
IN
=5.0V
I
LOAD
= 10mA
5
-15
±15
±8
Notes 2,3,4 and 5
+15
-19
R = 100Ω, C = 47pF
R = 68Ω, C = 47pF
R = 10Ω, C = 100pF
53
61
33
V
V
MHz
MHz
MHz
7
-10
CONDITIONS
MIN
90
61
9
38
80
TYP
100
68
10
47
100
MAX
110
75
11
57
120
1.0
15
-5
UNITS
Ω
Ω
Ω
pF
pF
μA
V
V
kV
kV
V
ESD
Notes 2,4 and 5
V
CL
f
C1
f
C2
f
C3
Note 1: T
A
=25
°
C unless otherwise specified.
Note 2: ESD applied to input pins with respect to GND, one at a time, pins A2, A3, A4, B1 and B2 only.
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 B1,
then clamping voltage is measured at Pin C1.
Note 4: Unused pins are left open
Note 5: The parameters are guaranteed by design and characterization.
Note 6: Z
SOURCE
=50Ω, Z
LOAD
=50Ω.
©
2005 California Micro Devices Corp. All rights reserved.
09/15/05
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲
Tel: 408.263.3214
▲
Fax: 408.263.7846
▲
www.calmicro.com
3
CM1410
Performance Information
Typical Filter Performance (nominal conditions unless specified otherwise)
Figure 1. Microphone 1 Circuit (B1-C1) EMI Filter Performance
Figure 2. Microphone 2 Circuit (A2-C2) EMI Filter Performance
©
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.calmicro.com
09/15/05
CM1410
Performance Information (Cont’d)
Typical Filter Performance (nominal conditions unless specified otherwise)
Figure 3. Speaker 1 Circuit (A3-C3) EMI Filter Performance
Figure 4. Speaker 2 Circuit (A4-C4) EMI Filter Performance
©
2005 California Micro Devices Corp. All rights reserved.
09/15/05
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲
Tel: 408.263.3214
▲
Fax: 408.263.7846
▲
www.calmicro.com
5
Embedded System
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