2-Channel EMI Filter with ESD Protection for Headset Speaker Applications

CM1481
2-Channel EMI Filter
with ESD Protection for
Headsets/Speakers
Features
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• Two Channels of EMI Filtering
• Pi−Style Filters in a Capacitor−Resistor−Capacitor (C−R−C)
•
•
•
•
•
•
•
Network
±8 kV ESD Protection (IEC 61000−4−2, Contact Discharge)
±15 kV ESD Protection (HBM)
Supports AC Signals − Ideal for Audio Applications
Greater than 40 dB of Attenuation at 1 GHz
8−lead, 2.00 mm x 2.00 mm Footprint WDFN Package
Low Profile Maximum Height of 0.8 mm
These Devices are Pb−Free and are RoHS Compliant
Applications
WDFN8
DE SUFFIX
CASE 511BE
ELECTRICAL SCHEMATIC
10 W
1
Filter #1
C
• 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
R
8
Filter #1
C
100 pF
100 pF
10 W
4
Filter #2
C
R
5
Filter #2
C
100 pF
100 pF
MARKING DIAGRAM
81E
81E
= CM1481−02DE
ORDERING INFORMATION
Device
Package
Shipping†
CM1481−02DE
WDFN
(Pb−Free)
3000/Tape & Reel
†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.
© Semiconductor Components Industries, LLC, 2011
April, 2011 − Rev. 3
1
Publication Order Number:
CM1481/D
CM1481
Table 1. PIN DESCRIPTIONS
Pin
Name
1
Filter #1
2
NC
No Connect
3
NC
No Connect
4
Filter #2
Filter #2
5
Filter #2
Filter #2
6
NC
No Connect
7
NC
No Connect
8
Filter #1
Filter #1
DAP
GND
Ground
PACKAGE / PINOUT DIAGRAMS
Description
Top View
(Pins Down View)
8 7 6 5
Filter #1
Pin 1
Marking
Bottom View
(Pins Up View)
1 2 3 4
GND
PAD
81E
1 2 3 4
8 7 6 5
CM1481−02DE
8 Lead WDFN Package
SPECIFICATIONS
Table 2. ABSOLUTE MAXIMUM RATINGS
Parameter
Storage Temperature Range
Rating
Units
−65 to +150
°C
0.5
W
DC Package Power Rating
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
Operating Temperature Range
Rating
Units
–40 to +85
°C
Table 4. ELECTRICAL OPERATING CHARACTERISTICS (Note 1)
Symbol
R
RMATCH
CTOT
C
Parameter
Conditions
Resistance R
Typ
Max
Units
8
10
12
W
5
%
240
pF
0.1
1.0
mA
7
−10
15
−5
Resistor−to−Resistor Matching
Total Channel Capacitance
2.5 V DC, 1 MHz, 30 mV AC
160
Capacitance C
200
100
ILEAK
Diode Leakage Current
VIN = +5.0 V
VSIG
Signal Clamp Voltage
Positive Clamp
Negative Clamp
ILOAD = 10 mA
ILOAD = −10 mA
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
fC
Min
(Note 2)
5
−15
pF
V
kV
±15
±8
Cut−off Frequency
ZSOURCE = 50 W, ZLOAD = 50 W
R = 10 W, 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. Clamping voltage is measured at the opposite side of the EMI filter
to the ESD pin (i.e. if ESD is applied to pin 1 then clamping voltage is measured at pin 8).
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2
CM1481
PERFORMANCE INFORMATION
Typical Filter Performance (nominal conditions unless specified otherwise, 50 W Environment)
Figure 1. Insertion Loss vs. Frequency (Filter #1 to GND B2)
Figure 2. Insertion Loss vs. Frequency (Filter #2 to GND B2)
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3
CM1481
PACKAGE DIMENSIONS
WDFN8 2x2, 0.5P
CASE 511BE−01
ISSUE O
A
D
PIN ONE
REFERENCE
2X
ÇÇÇ
ÇÇÇ
ÇÇÇ
0.10 C
E
DETAIL A
ALTERNATE
CONSTRUCTIONS
TOP VIEW
ÇÇ
ÉÉ
EXPOSED Cu
DETAIL B
A
0.10 C
A3
A3
MOLD CMPD
A1
DETAIL B
0.08 C
NOTE 4
C
D2
1
8X
4
SEATING
PLANE
5
e
BOTTOM VIEW
8X
MILLIMETERS
MIN
MAX
0.70
0.80
0.00
0.05
0.20 REF
0.20
0.30
2.00 BSC
1.50
1.70
2.00 BSC
0.80
1.00
0.50 BSC
0.25 REF
0.20
0.40
−−−
0.15
0.10 C A B
8X
1.70
PACKAGE
OUTLINE
b
0.05 C
DIM
A
A1
A3
b
D
D2
E
E2
e
K
L
L1
RECOMMENDED
SOLDERING FOOTPRINT*
L
E2
8
ÉÉ
ÇÇ
ÇÇ
ALTERNATE
CONSTRUCTIONS
A1
SIDE VIEW
DETAIL A
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
0.15 AND 0.30 MM FROM TERMINAL TIP.
4. COPLANARITY APPLIES TO THE EXPOSED
PAD AS WELL AS THE TERMINALS.
L1
0.10 C
2X
L
L
B
0.50
2.30
1.00
NOTE 3
1
0.50
PITCH
8X
0.30
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.
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
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
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
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PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT:
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Phone: 421 33 790 2910
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Phone: 81−3−5773−3850
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4
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
For additional information, please contact your local
Sales Representative
CM1481/D
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