Generic 1412

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Item Description: LIGHT-DUTY ATTACHE-STYLE STORAGE CASE, Carrying Case Mater

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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

© 2005 California Micro Devices Corp. All rights reserved.
11/03/05 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 Tel: 408.263.3214 Fax: 408.263.7846 www.calmicro.com 1
CM1412
2 Channel Headset Microphone EMI Filter with ESD Protection
Features
Functionally and pin compatible with CMD’s
CSPEMI202A
OptiGuard
coated for improved reliability at
assembly
Two channels of EMI filtering
Pi-style EMI filters in a capacitor-resistor-capacitor
(C-R-C) network
Greater than 40dB 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 AC signals—ideal for audio applications
Chip Scale Package features extremely low
lead inductance for optimum filter and ESD
performance
5-bump, 0.930mm X 1.410mm footprint
Chip Scale Package (CSP)
Lead-free version available
Applications
EMI filtering and ESD protection for headset
microphone ports
Wireless Handsets
Handheld PCs / PDAs
MP3 Players
Digital Camcorders
Notebooks
Desktop PCs
Product Description
The CM1412 is a dual low-pass filter array integrating
two pi-style filters (C-R-C) that reduce EMI/RFI emis-
sions while at the same time providing ESD protection.
This part is custom-designed to interface with a micro-
phone port on a cellular telephone or similar device.
Each high quality filter provides more than 35dB atten-
uation in the 800-2700 MHz range. These pi-style fil-
ters support bidirectional filtering, controlling EMI both
to and from a microphone element. They also support
AC signals, enabling audio signals to pass through
without distortion.
In addition, the CM1412 provides a very high level of
protection for sensitive electronic components that may
be subjected to electrostatic discharge (ESD). The
input pins 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 CM1412 is particularly well suited for portable
electronics (e.g., cellular telephones, PDAs, notebook
computers) because of its small package format and
low weight. The CM1412 incorporates OptiGuard
coating which results in improved reliability at assem-
bly and is available in a space-saving, low-profile Chip
Scale Package with optional lead-free finishing.
Electrical Schematic
68
Ω
47pF47pF
68
Ω
C1
C3
A1
A3
B2
MIC_OUT1
MIC_OUT2
GND
MIC_IN2
MIC_IN1
47pF47pF
© 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 11/03/05
CM1412
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
PIN NAME DESCRIPTION
A1 MIC_IN1 Microphone Input 1 (from microphone)
A3 MIC_IN2 Microphone Input 2 (from microphone)
B2 GND Device Ground
C1 MIC_OUT1 Microphone Output 1 (to audio circuitry)
C3 MIC_OUT2 Microphone Output 2 (to audio circuitry)
MIC_IN1 MIC_IN2
MIC_OUT1 MIC_OUT2
A1 A3
C3C1
GND
B2
Orientation
Marking
A1
CB
231
C
B
A
Orientation
Marking
(see note 2)
CM1412
CSP Package
PACKAGE / PINOUT DIAGRAMS
Notes:
TOP VIEW
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.
PART NUMBERING INFORMATION
Bumps Package
Standard Finish Lead-free Finish
2
Ordering Part
Number
1
Part Marking
Ordering Part
Number
1
Part Marking
5 CSP CM1412-03CS CB CM1412-03CP CB
© 2005 California Micro Devices Corp. All rights reserved.
11/03/05 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 Tel: 408.263.3214 Fax: 408.263.7846 www.calmicro.com 3
CM1412
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: These parameters are guaranteed by design and characterization.
ABSOLUTE MAXIMUM RATINGS
PARAMETER RATING UNITS
Storage Temperature Range -65 to +150 °C
DC Power per Resistor 100 mW
DC Package Power Rating 200 mW
STANDARD OPERATING CONDITIONS
PARAMETER RATING UNITS
Operating Temperature Range -40 to +85 °C
ELECTRICAL OPERATING CHARACTERISTICS
(NOTE 1
)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
R
1
Resistance 61 68 75 Ω
C
1
Capacitance 38 47 56 pF
I
LEAK
Diode Leakage Current V
IN
=5.0V 1.0 μA
V
SIG
Signal Voltage
Positive Clamp
Negative Clamp
I
LOAD
= 10mA
5
-15
7
-10
15
-5
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
Level 4
Notes 2,4 and 5
±15
±8
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
+15
-19
V
V
f
C
Cut-off frequency
Z
SOURCE
= 50Ω, Z
LOAD
= 50Ω
R = 68Ω, C = 47pF 60 MHz
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