© Semiconductor Components Industries, LLC, 2011
April, 2011 − Rev. 3
1Publication Order Number:
CM1683/D
CM1683
Praetorian) L-C EMI Filter
with ESD Protection for
Headsets/Speakers
Product Description
The CM1683 is an L−C EMI filter array with ESD protection, which
integrates two Pi−filters (C−L−C) for the headset speaker. The
CM1683 has component values of 100 pF − 3 nH − 100 pF. 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 ±8 kV,
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 ±15 kV.
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
CM1683 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 W and in order to maximize the power output, the
resistance of an EMI filter needs to be as low as possible and the
CM1683 addresses this by having a C−L−C based EMI filter where the
inductor has less than 1 W of resistance.
Features
•Two Channels of EMI Filtering
•±8 kV ESD Protection (IEC 61000−4−2, Contact Discharge)
•±15 kV ESD Protection (HBM)
•Greater than −40 dB of Attenuation at 1 GHz
•8−Lead, 2.00 mm x 2.00 mm, 0.5 mm Pitch CUDFN Package
•These Devices are Pb−Free and are RoHS Compliant
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
MARKING DIAGRAM
Device Package Shipping†
ORDERING INFORMATION
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CM1683−02DE CUDFN−8
(Pb−Free)
3000/Tape & Reel
CUDFN8
DE SUFFIX
CASE 505AF
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
P83
P83 = CM1683−02DE
1
4
8
5
Filter #1
Filter #1
Filter #2
Filter #2
3 nH
3 nH
L
100 pF 100 pF
100 pF 100 pF
L
CC
CC
ELECTRICAL SCHEMATIC
CM1683
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2
Table 1. PIN DESCRIPTIONS
8−Lead CUDFN Package
Pin Name Description
1Filter #1 Filter #1
2 NC No connect
3 NC No connect
4Filter #2 Filter #2
5Filter #2 Filter #2
6 NC No connect
7 NC No connect
8Filter #1 Filter #1
GND
PAD GND Ground
PACKAGE / PINOUT DIAGRAMS
Pin 1
Marking
CM1683−02DE
8−Lead CUDFN Package
Top View
(Pins Down View)
Bottom View
(Pins Up View)
1234
8765
GND
PAD
8 7 6 5
1 2 3 4
SPECIFICATIONS
Table 2. ABSOLUTE MAXIMUM RATINGS
Parameter Rating Units
Storage Temperature Range −65 to +150 °C
DC current per inductor 30 mA
DC package power rating 0.5 W
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
Table 3. STANDARD OPERATING CONDITIONS
Parameter Rating Units
Operating Temperature Range −40 to +85 °C
Table 4. ELECTRICAL OPERATING CHARACTERISTICS (Note 1)
Symbol Parameter Conditions Min Typ Max Units
L Inductance 3.0 nH
RDC Channel Resistance 0.75 1 W
CTOT Total Channel Capacitance 2.5 V DC; 1 MHz, 30 mV AC 160 200 240 pF
CCapacitance C 2.5 V DC; 1 MHz, 30 mV AC 100 pF
ILEAK Diode Leakage Current VIN = +5.0 V 0.1 1.0 mA
VIN = −5.0 V −1.0 −0.1 mA
VSIG Signal Clamp Voltage
Positive Clamp
Negative Clamp
ILOAD = 10 mA
ILOAD = −10 mA
5
−15
7
−10
15
−5
V
VESD In−system ESD Withstand Voltage:
a) Human Body Model, MIL−STD−883, Method 3015
b) Contact Discharge per IEC 61000−4−2 Level 4
(Note 2)
±15
±8
kV
fCCut−off frequency
ZSOURCE = 50 W, ZLOAD = 50 W
L = 3 nH, C = 100 pF 31 MHz
1. TA = 25°C unless otherwise specified.
2. ESD applied to input and output pins with respect to GND, one at a time.
CM1683
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3
PERFORMANCE INFORMATION
Typical Filter Performance (nominal conditions unless specified otherwise, 50 W Environment)
Figure 1. Insertion Loss vs. Frequency (Filter #1 to GND)
Figure 2. Insertion Loss vs. Frequency (Filter #2 to GND)
Frequency (MHz)
CM1683
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4
PACKAGE DIMENSIONS
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME
Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
3. DIMENSION b APPLIES TO PLATED TERMINAL AND
IS MEASURED BETWEEN 0.10 AND 0.20mm FROM
THE TERMINAL TIP.
4. COPLANARITY APPLIES TO THE EXPOSED PAD AS
WELL AS THE TERMINALS.
D
E
2X 0.10 C
CUDFN8, 2x2, 0.5P
CASE 505AF−01
ISSUE O
DIM MAX
MILLIMETERS
PIN ONE
REFERENCE
0.08 C
0.10 C
A0.10 C
NOTE 3
L
e
D2
E2
b
B
4
8
8X
1
5
8X
0.05 C
BOTTOM VIEW
MOUNTING FOOTPRINT*
DIMENSIONS: MILLIMETERS
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
A B
TOP VIEW
SIDE VIEW
NOTE 4
A
A1
b
E2
D
E
e
L
A3
MIN
0.55
0.00
0.15
0.80
0.25
0.65
0.05
0.25
1.00
0.35
0.20 REF
2.00 BSC
2.00 BSC
0.50 BSC
8X
0.52
0.50
PITCH
1.70
2.30
8X
0.27
1.00
1
D2 1.50 1.70
M--- 105
e/2
0.10 C
2X
A
RECOMMENDED
K0.20 ---
D1 1.80 BSC
END VIEW
SEATING
PLANE
A3
C
DETAIL A
A1
M
DETAIL A
D1
K
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
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and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal
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PUBLICATION ORDERING INFORMATION
N. American Technical Support: 800−282−9855 Toll Free
USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81−3−5773−3850
CM1683/D
Praetorian® is a registered trademark of Semiconductor Components Industries, LLC.
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