CM1420/22
LCD EMI Filter Array with ESD Protection
Features
•
•
•
•
•
•
•
Functionally and pin compatible with CSPEMI606
(CM1420) and CSPEMI608 (CM1422) devices
Optiguard
TM
coated for improved reliability at
assembly
Six and eight channels of EMI filtering
+
15kV ESD protection on each channel
(IEC 61000-4-2 Level 4, contact discharge)
+
30kV ESD protection on each channel (HBM)
Better than 30dB of attenuation at 1GHz to 3GHz
Chip Scale Package features extremely low
lead inductance for optimum filter and ESD
performance
15-bump, 2.960mm x 1.330mm footprint
Chip Scale Package (CM1420)
20-bump, 4.000mm x 1.458mm footprint
Chip Scale Package (CM1422)
Lead-free version available
Product Description
CAMD's CM1420 and CM1422 are EMI filter arrays
with ESD protection, which integrate six and eight Pi-
filters (C-R-C), respectively. The CM1420/22 has com-
ponent values of 15pF-100Ω-15pF. These devices
include ESD protection diodes on every pin, which pro-
vide a very high level of protection for sensitive elec-
tronic components that may be subjected to
electrostatic discharge (ESD). The ESD diodes con-
nected to the filter ports are designed and character-
ized to safely dissipate ESD strikes of ±15kV, beyond
the maximum requirement of the IEC 61000-4-2 inter-
national 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.
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 CM1420/22
is ideal for EMI filtering and protecting data lines from
ESD for the LCD display in clamshell handsets.
The CM1420 and CM1422 incorporate Optiguard
TM
coating which results in improved reliability at assem-
bly. The CM1420 and CM1422 are available in space-
saving, low-profile chip-scale packages with optional
lead-free finishing.
•
•
•
Applications
•
•
•
•
•
•
LCD data lines in clamshell wireless handsets
EMI filtering & ESD protection for high-speed I/O
data ports
Wireless handsets / cell phones
Notebook computers
PDAs / Handheld PCs
EMI filtering for high-speed data lines
Electrical Schematic
100Ω
FILTERn*
15pF
15pF
FILTERn*
GND
(Pins B1-Bn)
1 of n EMI Filtering + ESD Channels
(n=6 for CM1420, 8 for CM1422)
* See Package/Pinout Diagram for expanded pin information.
© 2004 California Micro Devices Corp. All rights reserved.
04/27/04
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲
Tel: 408.263.3214
▲
Fax: 408.263.7846
▲
www.calmicro.com
1
CM1420/22
PACKAGE / PINOUT DIAGRAMS
TOP VIEW
(Bumps Down View)
Orientation
Marking
(see note 2)
BOTTOM VIEW
(Bumps Up View)
FILTER1
FILTER2
FILTER3
FILTER4
FILTER5
FILTER6
1
A
B
C
2
3
4
5
6
C1
GND
C2
B1
C3
GND
C4
B2
C5
GND
C6
B3
N203
2
3
4
5
6
7
8
Orientation
Marking
FILTER1
FILTER2
FILTER3
FILTER4
FILTER5
FILTER6
A1
A1
A2
A3
A4
A5
A6
CM1420 CSP Package
Orientation
Marking
(see note 2)
1
A
B
C
FILTER1
FILTER2
FILTER3
FILTER4
FILTER5
FILTER6
FILTER7
FILTER8
C1
C2
GND
C3
GND
C4
B2
C5
GND
C6
B3
C7
GND
C8
B4
N223
B1
Orientation
Marking
FILTER1
FILTER2
FILTER3
FILTER4
FILTER5
FILTER6
FILTER7
FILTER8
A1
A1
A2
A3
A4
A5
A6
A7
A8
Notes:
CM1422 CSP Package
1) These drawings are not to scale.
2) Lead-free devices are specified by using a "+" character for the top side orientation mark.
PIN DESCRIPTIONS
CM1420
PIN(s)
A1
A2
A3
A4
A5
A6
-
-
B1-B3
CM1422
PIN(s)
A1
A2
A3
A4
A5
A6
A7
A8
B1-B4
NAME
NAME
FILTER1
FILTER2
FILTER3
FILTER4
FILTER5
FILTER6
FILTER7
FILTER8
GND
DESCRIPTION
DESCRIPTION
Filter Channel 1
Filter Channel 2
Filter Channel 3
Filter Channel 4
Filter Channel 5
Filter Channel 6
Filter Channel 7
Filter Channel 8
Device Ground
CM1420
PIN(s)
C1
C2
C3
C4
C5
C6
-
-
CM1422
PIN(s)
C1
C2
C3
C4
C5
C6
C7
C8
NAME
NAME
FILTER1
FILTER2
FILTER3
FILTER4
FILTER5
FILTER6
FILTER7
FILTER8
DESCRIPTION
DESCRIPTION
Filter Channel 1
Filter Channel 2
Filter Channel 3
Filter Channel 4
Filter Channel 5
Filter Channel 6
Filter Channel 7
Filter Channel 8
Ordering Information
PART NUMBERING INFORMATION
Standard Finish
Ordering Part
Bumps
15
20
Package
CSP
CSP
Number
1
CM1420-03CS
CM1422-03CS
Part Marking
N203
N223
Lead-free Finish
2
Ordering Part
Number
1
CM1420-03CP
CM1422-03CP
Part Marking
N203
N223
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.
© 2004 California Micro Devices Corp. All rights reserved.
2
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲
Tel: 408.263.3214
▲
Fax: 408.263.7846
▲
www.calmicro.com
04/27/04
CM1420/22
Specifications
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Storage Temperature Range
DC Power per Resistor
DC Package Power Rating
RATING
-65 to +150
100
500
UNITS
°C
mW
mW
STANDARD OPERATING CONDITIONS
PARAMETER
Operating Temperature Range
RATING
-40 to +85
UNITS
°C
ELECTRICAL OPERATING CHARACTERISTICS
1
SYMBOL
R
C
V
DIODE
I
LEAK
V
SIG
PARAMETER
Resistance
Capacitance
Diode Standoff Voltage
Diode Leakage Current (reverse bias)
Signal Voltage
Positive Clamp
Negative Clamp
In-system ESD Withstand Voltage
a) Human Body Model, MIL-STD-883,
Method 3015
b) Contact Discharge per IEC 61000-4-2
Level 4
Clamping Voltage during ESD Discharge
MIL-STD-883 (Method 3015), 8kV
Positive Transients
Negative Transients
Cut-off Frequency
Z
SOURCE
=50Ω Z
LOAD
=50Ω
,
At 2.5V DC, 1MHz, 30mV
AC
I
DIODE
=10µA
V
DIODE
=+3.3V
I
LOAD
= 10mA
5.6
-0.4
Notes 2,4 and 5
±30
±15
Notes 2,3,4 and 5
+12
-7
R=100Ω, C=15pF
120
MHz
V
V
kV
kV
6.8
-0.8
9.0
-1.5
V
V
CONDITIONS
MIN
80
12
5.5
100
TYP
100
15
MAX
120
18
UNITS
Ω
pF
V
nA
V
ESD
V
CL
f
C
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: Clamping voltage is measured at the opposite side of the EMI filter to the ESD pin. For example, if ESD is applied to Pin A1,
then clamping voltage is measured at Pin C1.
Note 4: Unused pins are left open
Note 5: These parameters are guaranteed by design and characterization.
© 2004 California Micro Devices Corp. All rights reserved.
04/27/04
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲
Tel: 408.263.3214
▲
Fax: 408.263.7846
▲
www.calmicro.com
3
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