PROTECTION PRODUCTS
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PRELIMINARY
PROTECTION PRODUCTS - EMIClampTM
EClamp2422N
ESD/EMI Protection
for Audio Interfaces
Description Features
Package Configuration
SLP1510N6 package (Bottom Side View)
Nominal Dimensions in mm
The EClampTM2422N is a (C-L-C) low pass filter array with
integrated TVS diodes. It is designed to suppress
unwanted EMI/RFI signals and provide electrostatic
discharge (ESD) protection in portable electronic
equipment. This state-of-the-art device utilizes solid-
state silicon-avalanche technology for superior clamp-
ing performance and DC electrical characteristics. It
has been optimized for protection of headsetprotection of headset
protection of headsetprotection of headset
protection of headset
audio portsaudio ports
audio portsaudio ports
audio ports in cellular phones and other portable
electronics.
The device consists of two identical circuits comprised of
TVS diodes for ESD protection, and a C-L-C pi-filter for
EMI/RFI filtering. A typical inductor value of 2nH and a
capacitor value of 100pF are used to achieve 20dB
minimum attenuation from 800MHz to 2.7GHz. It has a
very low series resistance of 2 Ohms, making it ideal for
use on headset speaker interfaces. The TVS diodes
provide effective suppression of ESD voltages in excess of
±15kV (air discharge) and ±8kV (contact discharge) per
IEC 61000-4-2, level 4.
The EClamp2422N is in a 6-pin, RoHS/WEEE compliant,
SLP1510N6 package. It measures 1.45 x 1.0 x
0.58mm. The leads are spaced at a pitch of 0.5mm
and are finished with lead-free NiPdAu. The small
package makes it ideal for use in portable electronics.
Mechanical Characteristics
Circuit Diagram (Each Line)
Applications
Cellular Handsets
Speaker Ports in Portables
Notebook Computers
SLP1510N6 6-pin package
RoHS/WEEE Compliant
Nominal Dimensions: 1.45 x 1.0 x 0.58 mm
Lead Pitch: 0.5mm
Lead finish: NiPdAu
Marking: Marking Code
Packaging: Tape and Reel per EIA 481
Bidirectional EMI/RFI filter with integrated TVS
for ESD protection
ESD protection to IEC 61000-4-2 (ESD) Level 4,
±15kV (air), ±8kV (contact)
TVS working voltage: 5V
Inductor: 2nH (Typical)
Capacitors: 100pF (Typical at VR = 0V)
Protection and filtering for two lines
Solid-state technology
Device Schematic (2X)
Revision 04/25/2007
GND
IN OUT
CC
L1
1.00
1.45
0.58
1
0.50
2© 2007 Semtech Corp. www.semtech.com
PRELIMINARY
PROTECTION PRODUCTS
EClamp2422N
Maximum Ratings
Electrical Characteristics (T=25oC)
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3© 2007 Semtech Corp. www.semtech.com
PRELIMINARY
PROTECTION PRODUCTS
EClamp2422N
Typical Characteristics
Typical Insertion Loss S21 (Each Line) Analog Crosstalk (Each Line)
ESD Clamping (+8kV Contact) ESD Clamping (-8kV Contact)
Normalized Capacitance vs. Reverse Voltage
Note: Data is taken with a 10x attenuator Note: Data is taken with a 10x attenuator
Clamping Voltage vs. Peak Pulse Current
0
2
4
6
8
10
12
14
16
01234567
Peak Pulse Current - IPP (A)
Clamping Voltage - VC (V)
Waveform
Parameters:
tr = 8µs
td = 20µs
START
. 030 MHz 3
STOP 000
. 000 000 MHz
CH1 S21 LOG 20 dB / REF 0 dB
START
. 030 MHz 3
STOP 000
. 000 000 MHz
CH1 S21 LOG 6 dB / REF 0 dB
1: -21.107 dB
900 MHz
2: -14.439 dB
1.8 GHz
3: -13.193 dB
2.5 GHz
0 dB
-6 dB
-12 dB
-18 dB
-24 dB
-30 dB
-36 dB
-42 dB
-48 dB 1
GHz
100
MHz 3
GHz
10
MHz
1
MHz
3
2 1
0.95
0.96
0.97
0.98
0.99
1
1.01
1.02
1.03
1.04
1.05
012345
Reverse Voltage - VR (V)
CJ(VR) / CJ(VR=0))
f = 1 MHz
4© 2007 Semtech Corp. www.semtech.com
PRELIMINARY
PROTECTION PRODUCTS
EClamp2422N
Device Connection
The EClamp2422N provides EMI filtering and ESD
protection in a small SLP1510N6 package for speaker
port applications. The equivalent circuit diagram is
shown in Figure 1. The layout of the device is designed
such that the data lines can be routed through the
device. The first line pair enters at pin 1 and exits at
pin 6. The second line pair enters at pin 2 and exits at
pin 5. The device is symmetrical so the above connec-
tions may be reversed. Ground connection is made at
pins 3 and 4.
Circuit Board Layout Recommendations for Suppres-
sion of ESD.
Good circuit board layout is critical for the suppression of
ESD induced transients. The following guidelines are
recommended:
zPlace the TVS near the input terminals or connectors
to restrict transient coupling.
zMinimize the path length between the TVS and the
protected line.
zMinimize all conductive loops including power and
ground loops.
zThe ESD transient return path to ground should be
kept as short as possible.
zNever run critical signals near board edges.
zUse ground planes whenever possible.
Figure 2 - Pin Identification and Configuration
(Top Side View)
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GND
Line In
Line In
Line Out
Line Out
GND
Figure 1 -Circuit Diagram (Each Line)
GND
IN OUT
CC
L1
Applications Information
5© 2007 Semtech Corp. www.semtech.com
PRELIMINARY
PROTECTION PRODUCTS
EClamp2422N
EClamp2422N
Vin +
Vin -
Differential Mode Protection with Speaker Output
Applications Information
EClamp2422N
V2
V1
Protection of Two Single-Ended Mode Speakers
6© 2007 Semtech Corp. www.semtech.com
PRELIMINARY
PROTECTION PRODUCTS
EClamp2422N
Applications Information
Differential Mode Protection with Microphone Input
Protection of Single-Ended Mode Microphone and Speaker Output
EClamp2422N
Vout +
Vout -
EClamp2422N
V2
V1
7© 2007 Semtech Corp. www.semtech.com
PRELIMINARY
PROTECTION PRODUCTS
EClamp2422N
Applications Information - Spice Model
EClamp2422N Spice Model
Line In Line Ou
t
L1
2nH
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M--10.010.0
N--1.11.1
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8© 2007 Semtech Corp. www.semtech.com
PRELIMINARY
PROTECTION PRODUCTS
EClamp2422N
Land Pattern - SLP1510N6
Outline Drawing - SLP1510N6
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1.00
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A2
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A1
PIN 1
INDICATOR
(LASER MARK)
B
A
C
SEATING
PLANE
12
D/2
E/2
N
ebbb C A B
INCHES
.020 BSC
b.008
bbb
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N
L
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D
.012
DIM
A1
A2
AMIN
0.00
.020
0.300.20.012 0.25
.010
0.425
0.30
.004
.003
6
.015
.057
.017
0.08
0.10
6
0.38
1.45
0.50 BSC
MILLIMETERS
MAX
0.05
0.65
DIMENSIONS
MIN
0.00
NOM
(.005)
.023
.001
MAX
.002
.026 NOM
0.50 0.03
(0.13)
0.58
CONTROLLING DIMENSIONS ARE IN MILLIMETERS
(
ANGLES IN DEGREES
)
NOTES:
1.
G
(C)
Y
Z
P
X
THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY.
CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR
NOTES:
1.
DIM
X
Y
P
G
CMILLIMETERSINCHES (0.875)
.010
.027
.008
.020
(.034)
0.25
0.675
0.50
0.20
DIMENSIONS
COMPANY'S MANUFACTURING GUIDELINES ARE MET
.
1.55.061Z
9© 2007 Semtech Corp. www.semtech.com
PRELIMINARY
PROTECTION PRODUCTS
EClamp2422N
Contact Information
Semtech Corporation
Protection Products Division
200 Flynn Rd., Camarillo, CA 93012
Phone: (805)498-2111 FAX (805)498-3804
Marking Ordering Information
Tape and Reel Specification
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Device Orientation in Tape
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mm8 mm2.4
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mm1.0+5.1
mm0.0-
500.+95.0(
)000.-
mm8.0
50.0±
)130.(
01.±057.1
mm
)400.±960.(
50.0±5.3
mm
)200.±831.(
mm4.2
)490.(
1.0±0.4
mm
-00.±751.(
)4
1.0±0.4
mm
-00.±751.(
)4
-m50.0±0.2
m
)20
0.±970.(
mm4.0
)610.(
mm0.8
mm3.0+
mm1.0-
)210.±213.(
Pin 1 Location
User Direction of feed
EMIClamp and EClamp are marks of Semtech Corporation
0A0B0K
mm50.0±42.1mm50.0±07.1mm50.0±67.0
2422N
