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LCD and Camera EMI Filter
Array with ESD Protection
CM1430
Features
•
•
•
•
•
•
Four, six and eight 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
TDFN package with 0.40mm lead pitch:
• 4-ch. = 8-lead TDFN
• 6-ch. = 12-lead TDFN
• 8-ch. = 16-lead TDFN
Tiny TDFN package size:
• 8-lead: 1.7mm x 1.35mm
• 12-lead: 2.5mm x 1.35mm
• 16-lead: 3.3mm x 1.35mm
Increased robustness against vertical impacts
during manufacturing process
Lead-free version available
Product Description
The CM1430 is a family of pi-style EMI filter arrays
with ESD protection, which integrates four, six and
eight filters (C-R-C) in small form factor TDFN
0.40mm pitch packages. The CM1430 has
component values of 8.5pF-100Ω-8.5pF per channel.
The CM1430 has a cut-off frequency of 200MHz 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 CM1430 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 CM1430 is housed in space-saving, low-profile
8-,12- and 16-lead TDFN packages with a 0.4mm
pitch and is available with lead-free finishing. This
new small TDFN package provides up to 42% board
space savings vs. the 0.50mm pitch TDFN packages.
•
•
•
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
©2010 SCILLC. All rights reserved.
April 2010 Rev. 2
Publication Order Number:
CM1430/D
CM1430
STANDARD OPERATING CONDITIONS
PARAMETER
Operating Temperature Range
RATING
-40 to +85
UNITS
°C
ELECTRICAL OPERATING CHARACTERISTICS
(SEE NOTE1)
SYMBOL
R
C
TOTAL
C
PARAMETER
Resistance
Total Channel Capacitance
At 2.5VDC Reverse
Bias, 1MHz, 30mVAC
At 2.5VDC Reverse
Bias, 1MHz, 30mVAC
I
DIODE
=10μA
V
DIODE
=+3.3V
CONDITIONS
MIN
80
14
TYP
100
17
MAX
120
22
UNITS
Ω
pF
Capacitance C1
7
8.5
11
pF
V
DIODE
I
LEAK
V
SIG
Standoff Voltage
Diode Leakage Current (reverse bias)
Signal Clamp 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
Dynamic Resistance
Positive
Negative
Cut-off Frequency
Z
SOURCE
=50Ω, Z
LOAD
=50Ω
6.0
0.1
1.0
V
μA
I
LOAD
= 10mA
I
LOAD
= -10mA
Note 2
5.6
-1.5
6.8
-0.8
9.0
-0.4
V
V
V
ESD
30
15
2.3
0.9
Channel R = 100Ω,
Channel C = 8.5pF
kV
kV
Ω
Ω
MHz
R
DYN
f
C
200
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.
Rev.
2
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