2006 California Micro Devices Corp. All rights reserved.
05/12/06
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
1
CM1484
PRELIMINARY
Dual Channel EMI Filter with ESD Protection
Features
Two channels of EMI filtering with integrated ESD
protection
Pi-style EMI filters in a capacitor-resistor-capacitor
(C-R-C) network
15kV ESD protection on each channel
(IEC 61000-4-2 Level 4, contact discharge)
30kV ESD protection on each channel (HBM)
Greater than 20dB attenuation (typical) at 1 GHz
5-lead SC70 package
Lead-free version available
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
Product Description
The CM1484 is a 2 channel pi-style EMI filter array with
ESD protection, housed in a 5-lead SC-70 package.
The CM1484 has component values of 11pF-100
-
11pF per channel. The CM1484 has a cut-off fre-
quency of 220MHz and can be used in applications
with data rates up to 80Mbps. 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
15kV, 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
30kV.
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 SC70 pack-
age and is available with lead-free finishing
.
100
11pF
11pF
FILTER+ESDn*
GND
FILTER+ESDn*
Electrical Schematic
1 of 2 EMI/RFI Filter Channels
* See Package/Pinout Diagram
for expanded pin information.
with Integrated ESD Protection
R
C
C
2006 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.cmd.com
05/12/06
CM1484
PRELIMINARY
Ordering Information
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.
Specifications
PIN DESCRIPTIONS
NAME
DESCRIPTION
1
FILTER1
Filter + ESD Channel 1
2
GND
Ground
3
FILTER2
Filter + ESD Channel 2
4
FILTER2
Filter + ESD Channel 2
5
FILTER1
Filter + ESD Channel 1
PACKAGE / PINOUT DIAGRAMS
Notes:
1) These drawings are not to scale.
5-lead SC70
1
2
5
3
4
Top View
N84R
CH1
CH2
CH2
CH1
GND
PART NUMBERING INFORMATION
Pins
Package
Lead-free Finish
Ordering Part Number
1
Part Marking
5
SC70
CM1484-02S7
N84R
ABSOLUTE MAXIMUM RATINGS
PARAMETER
RATING
UNITS
Storage Temperature Range
-65 to +150
C
DC Power per Resistor
100
mW
DC Package Power Rating
500
mW
2006 California Micro Devices Corp. All rights reserved.
05/12/06
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
3
CM1484
PRELIMINARY
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: These parameters are guaranteed by design and characterization.
STANDARD OPERATING CONDITIONS
PARAMETER
RATING
UNITS
Operating Temperature Range
-40 to +85
C
ELECTRICAL OPERATING CHARACTERISTICS
(SEE NOTE1)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
R
Resistance
90
100
110
C
TOTAL
Total Channel Capacitance
At 0VDC Reverse
Bias, 1MHz, 30mVAC
17.6
22
26.4
pF
C
Capacitance C1
At 0VDC Reverse
Bias, 1MHz, 30mVAC
8.8
11
13.2
pF
I
LEAK
Diode Leakage Current (reverse bias)
V
DIODE
=+3.0V
1.0
A
V
Z
Zener Breakdown Voltage
Positive Clamp
I
LOAD
= 1mA
6.0
8.0
V
V
F
Zener Forward Voltage
I
F
= 50mA
1.5
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 and 3
30
15
kV
kV
R
DYN
Dynamic Resistance
Positive
Negative
2.3
0.9
f
C
Cut-off Frequency
Z
SOURCE
=50
, Z
LOAD
=50
Channel R = 100
,
Channel C = 22pF at
0V reverse bias
220
MHz
2006 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.cmd.com
05/12/06
CM1484
PRELIMINARY
Performance Information
Typical Filter Performance (T
A
=25C, DC Bias=0V, 50 Ohm Environment)
Figure 1. Insertion Loss vs. Frequency (FILTER1 Input to GND)
Figure 2. Insertion Loss vs. Frequency (FILTER2 Input to GND)
2006 California Micro Devices Corp. All rights reserved.
05/12/06
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
5
CM1484
PRELIMINARY
Mechanical Details
SC70-5 Mechanical Specifications:
The CM1484-02S7 is supplied in a 5-pin SC70 pack-
age. Dimensions are presented below.
For complete information on the SC70-5, see the Cali-
fornia Micro Devices SC70 Package Information docu-
ment.
Package Dimensions for SC70-5.
PACKAGE DIMENSIONS
Package
SC70-5
(JEDEC name is MO-203 Issue A)
Pins
5
Dimensions
Millimeters
Min
Max
A
0.80
1.10
A1
0.00
0.10
A2
0.70
1.00
B
0.15
0.30
c
0.08
0.25
D
1.85
2.25
E
1.15
1.35
e
0.65 BSC
HE
2.00
2.40
L
0.26
0.46
# / tape and reel
3000 pieces
Controlling dimension: millimeters
END VIEW
c
L
Mechanical Package Diagrams
TOP VIEW
e
e
E HE
B
A
SIDE VIEW
D
A2
A1
5
4
1
2
3
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