2005 California Micro Devices Corp. All rights reserved.
11/08/05
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
1
CM1442
LCD and Camera EMI Filter Array with ESD Protection
Features
Six and eight channels of EMI filtering with inte-
grated ESD protection
0.4mm pitch, 15-bump, 2.360mm x 1.053mm foot-
print Chip Scale Package (CM1442-06)
0.4mm pitch, 20-bump, 3.160mm x 1.053mm foot-
print Chip Scale Package (CM1442-08)
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 30dB attenuation (typical) at 1 GHz
Chip Scale Package features extremely low
lead inductance for optimum filter and ESD
performance
OptiGuard
TM
coated for improved reliability at
assembly
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 CM1442 is a family of pi-style EMI filter arrays with
ESD protection, which integrates six and eight filters
(C-R-C) in Chip Scale Package form factor with
0.40mm pitch. The CM1442 has component values of
15pF-100
-15pF per channel. The CM1442 has a cut-
off frequency of 120MHz and can be used in applica-
tions where the data rates are as high as 48Mbps. The
parts include avalanche-type ESD diodes on every pin,
which provide a very high level of protection for sensi-
tive 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 dis-
charges at greater than
30kV.
This device is particularly well suited for portable elec-
tronics (e.g. wireless handsets, PDAs, notebook com-
puters) because of its small package format and easy-
to-use pin assignments. In particular, the CM1442 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 CM1442 incorporates OptiGuard
TM
which results
in improved reliability at assembly. The CM1442 is
available in a space-saving, low-profile Chip Scale
Package with optional lead-free finishing. It is manu-
factured with a 0.40mm pitch and 0.25mm CSP solder
ball to provide up to 28% board space saving versus
competing CSP devices with 0.50mm pitch and
0.30mm CSP solder ball.
100
15pF
15pF
FILTER+ESDn*
GND
FILTER+ESDn*
(Pins B1-Bm
Electrical Schematic
1 of 6 or 8 EMI/RFI + ESD Channels
* See Package/Pinout Diagram
for expanded pin information.
(Pins A1-An)
(Pins C1-Cn)
where m = n/2)
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.cmd.com
11/08/05
CM1442
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(s)
NAME
DESCRIPTION
PIN(s)
NAME
DESCRIPTION
A1
FILTER1
Filter + ESD Channel 1
C1
FILTER1
Filter + ESD Channel 1
A2
FILTER2
Filter + ESD Channel 2
C2
FILTER2
Filter + ESD Channel 2
A3
FILTER3
Filter + ESD Channel 3
C3
FILTER3
Filter + ESD Channel 3
A4
FILTER4
Filter + ESD Channel 4
C4
FILTER4
Filter + ESD Channel 4
A5
FILTER5
Filter + ESD Channel 5
C5
FILTER5
Filter + ESD Channel 5
A6
FILTER6
Filter + ESD Channel 6
C6
FILTER6
Filter + ESD Channel 6
A7
FILTER7
Filter + ESD Channel 7
C7
FILTER7
Filter + ESD Channel 7
A8
FILTER8
Filter + ESD Channel 8
C8
FILTER8
Filter + ESD Channel 8
B1-B4
GND
Device Ground
N426
4
3
2
6
5
1
C
B
A
Orientation
Marking
(see note 2)
N428
4
3
2
6
5
8
7
1
C
B
A
Orientation
Marking
(see note 2)
FILTER5
FILTER6
GND
FILTER5
FILTER6
A6
A5
Orientation
Marking
B3
C6
C5
FILTER3
FILTER4
GND
FILTER3
FILTER4
A4
A3
B2
C4
C3
FILTER1
FILTER2
GND
FILTER1
FILTER2
A2
A1
B1
C2
C1
A1
FILTER5
FILTER6
GND
FILTER5
FILTER6
FILTER7
FILTER8
GND
FILTER7
FILTER8
A6
A5
Orientation
Marking
B3
B4
C6
C5
FILTER3
FILTER4
GND
FILTER3
FILTER4
A4
A3
B2
C4
A8
A7
C8
C7
C3
FILTER1
FILTER2
GND
FILTER1
FILTER2
A2
A1
B1
C2
C1
A1
PACKAGE / PINOUT DIAGRAMS
Notes:
BOTTOM VIEW
CM1442-06CS/CP
15 Bump CSP Package
(Bumps Up View)
TOP VIEW
(Bumps Down View)
1) These drawings are not to scale.
2) Lead-free devices are specified by using a "+" character for the top side orientation mark.
CM1442-08CS/CP
20 Bump CSP Package
PART NUMBERING INFORMATION
Bumps
Package
Standard Finish
Lead-free Finish
2
Ordering Part
Number
1
Part Marking
Ordering Part
Number
1
Part Marking
15
CSP
CM1442-06CS
N426
CM1442-06CP
N426
20
CSP
CM1442-08CS
N428
CM1442-08CP
N428
2005 California Micro Devices Corp. All rights reserved.
11/08/05
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
3
CM1442
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: Unused pins are left open
Note 4: 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
500
mW
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
80
100
120
C
TOTAL
Total Channel Capacitance
At 2.5VDC Reverse
Bias, 1MHz, 30mVAC
24
30
36
pF
C
Capacitance C1
At 2.5VDC Reverse
Bias, 1MHz, 30mVAC
12
15
18
pF
V
DIODE
Standoff Voltage
I
DIODE
=10
A
6.0
V
I
LEAK
Diode Leakage Current (reverse bias)
V
DIODE
=
+
3.3V
0.1
1
A
V
SIG
Signal Clamp Voltage
Positive Clamp
Negative Clamp
I
LOAD
= 10mA
I
LOAD
= -10mA
5.6
-1.5
6.8
-0.8
9.0
-0.4
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, 3 and 4
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
R=100
, C=15pF
115
MHz
2005 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
11/08/05
CM1442
Performance Information
Typical Filter Performance (T
A
=25C, DC Bias=0V, 50 Ohm Environment)
Figure 1. Insertion Loss vs. Frequency (A1-C1 to GND B1)
Figure 2. Insertion Loss vs. Frequency (A2-C2 to GND B1)
2005 California Micro Devices Corp. All rights reserved.
11/08/05
490 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.cmd.com
5
CM1442
Performance Information (cont'd)
Typical Filter Performance (T
A
=25C, DC Bias=0V, 50 Ohm Environment)
Figure 3. Insertion Loss vs. Frequency (A3-C3 to GND B2)
Figure 4. Insertion Loss vs. Frequency (A4-C4 to GND B2)
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