2-Channel EMI Filter (C-R-C) with ESD

CM1484
Dual Channel EMI Filter
with ESD Protection
Product Description
The CM1484 is a two channel pi-style EMI filter array with ESD
protection, housed in a 5−lead SC−70 package. The CM1484 has
component values of 11 pF − 100 W − 11 pF per channel. The
CM1484 has a cut−off frequency of 220 MHz and can be used in
applications with data rates up to 80 Mbps. The parts include ESD
diodes on every pin, which provide a very high level of protection for
sensitive electronic components that may be subjected to electrostatic
discharge (ESD). The ESD protection diodes safely dissipate ESD
strikes of ±15 kV, well 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 ±30 kV.
These devices are particularly well-suited for portable electronics
(e.g. wireless handsets, PDAs, notebook computers) because of their
small package and easy−to−use pin assignments. In particular, the
CM1484 is ideal for EMI filtering and protecting data and control lines
for the I/O data ports, LCD display and camera interface in mobile
handsets.
The CM1484 is housed in a small, 5−lead SC−70 package and is
available with lead-free finishing.
Features
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SC−70
S7 SUFFIX
CASE 419AC
ELECTRICAL SCHEMATIC
100 W
Filter
+
ESDn*
C
R
C
11 pF
GND
Filter
+
ESDn*
11 pF
1 of 2 EMI/RFI Filter Channels
with Integrated ESD Protection
* See Package/Pinout Diagrams for expanded pin information.
• Two Channels of EMI Filtering with Integrated ESD Protection
• Pi−Style EMI Filters in a Capacitor−Resistor−Capacitor (C−R−C)
MARKING DIAGRAM
Network
• ±15 kV ESD Protection on Each Channel
•
•
•
•
N84R
(IEC 61000−4−2 Level 4, Contact Discharge)
±30 kV ESD Protection on Each Channel (HBM)
Greater than 20 dB Attenuation (Typical) at 1 GHz
5−lead SC−70 Package
These Devices are Pb−Free and are RoHS Compliant
N84R
ORDERING INFORMATION
Applications
• LCD and Camera Data Lines 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
• Wireless Handsets
• Handheld PCs/PDAs
• LCD and Camera Modules
© Semiconductor Components Industries, LLC, 2011
April, 2011 − Rev. 1
= CM1484−02S7
1
Device
Package
Shipping†
CM1484−02S7
SC−70
(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.
Publication Order Number:
CM1484/D
CM1484
PACKAGE / PINOUT DIAGRAMS
Table 1. PIN DESCRIPTIONS
5−Lead SC−70 Package
Pin
Name
1
FILTER1
2
GND
3
FILTER2
Filter + ESD Channel 2
4
FILTER2
Filter + ESD Channel 2
5
FILTER1
Filter + ESD Channel 1
Top View
Description
CH1
1
GND
2
CH2
3
5
CH1
4
CH2
Filter + ESD Channel 1
N84R
Ground
5−Lead SC−70
SPECIFICATIONS
Table 2. ABSOLUTE MAXIMUM RATINGS
Parameter
Rating
Units
−65 to +150
°C
DC Power per Resistor
100
mW
DC Package Power Rating
500
mW
Storage Temperature Range
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
CTOTAL
Parameter
Conditions
Resistance
Min
Typ
Max
Units
90
100
110
W
Total Channel Capacitance
At 0 V DC Reverse Bias, 1 MHz,
30 mV AC
17.6
22.0
26.4
pF
Capacitance C1
At 0 V DC Reverse Bias, 1 MHz,
30 mV AC
8.8
11.0
13.2
pF
Diode Leakage Current (Reverse Bias)
VDIODE = +3.0 V
1.0
mA
VZ
Zener Breakdown Voltage
Positive Clamp
ILOAD = 1 mA
VF
Zener Forward Voltage
IF = 50 mA
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)
C
ILEAK
VESD
RDYN
fC
6.0
8.0
1.5
V
V
kV
±30
±15
Dynamic Resistance
Positive
Negative
2.3
0.9
Cut−off Frequency
ZSOURCE = 50 W, ZLOAD = 50 W
Channel R = 100 W,
Channel C = 22 pF
at 0 V Reverse Bias
1. TA = 25°C unless otherwise specified.
2. ESD applied to input and output pins with respect to GND, one at a time.
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2
220
W
MHz
CM1484
PERFORMANCE INFORMATION
Typical Filter Performance (TA = 255C, DC Bias = 0 V, 50 W Environment)
Figure 1. Insertion Loss vs. Frequency (FILTER1 Input to GND)
Figure 2. Insertion Loss vs. Frequency (FILTER2 Input to GND)
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3
CM1484
PACKAGE DIMENSIONS
SC−88A (SC−70 5 Lead), 1.25x2
CASE 419AC−01
ISSUE A
SYMBOL
MIN
A
0.80
D
e
e
E1 E
1.10
0.00
0.10
A2
0.80
1.00
b
0.15
0.30
c
0.10
0.18
D
1.80
2.00
2.20
E
1.80
2.10
2.40
E1
1.15
1.25
1.35
0.65 BSC
0.26
L
q1
MAX
A1
e
TOP VIEW
NOM
0.36
L1
0.42 REF
L2
0.15 BSC
0.46
θ
0º
8º
θ1
4º
10º
A2 A
q
q1
b
L
L1
A1
SIDE VIEW
c
L2
END VIEW
Notes:
(1) All dimensions are in millimeters. Angles in degrees.
(2) Complies with JEDEC MO-203.
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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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
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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
CM1484/D
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