ECLAMP1002A.TCT [SEMTECH]
ESD/EMI Protection for Speaker Ports; ESD / EMI保护扬声器端口
| 型号： | ECLAMP1002A.TCT |
| 厂家： | 
SEMTECH CORPORATION |
| 描述： | ESD/EMI Protection for Speaker Ports |
| 文件： | 总6页 (文件大小：170K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
EClamp1002A
ESD/EMI Protection
for Speaker Ports
PROTECTION PRODUCTS - EMIClampTM
Features
Description
The EClampTM1002A is a low pass filter array with
integrated TVS diodes for ESD protection. It is de-
signed to provide bidirectional filtering of EMI/RFI
signals and electrostatic discharge (ESD) protection in
portable electronic equipment. This state-of-the-art
device utilizes solid-state silicon-avalanche technology
for superior clamping performance and DC electrical
characteristics. They have been optimized for use on a
speaker port in cellular phones and other portable
electronics.
Transient protection for data lines to
IEC 61000-4-2 (ESD) 15kV (air), 8kV (contact)
IEC 61000-4-4 (EFT) 40A (5/50ns)
Bidirectional EMI/RFI filter with integrated ESD
protection
Protects two I/O lines
Ultra-small SC-89 package (1.7 x 1.7 x 0.6mm)
requires less than 2.9mm2 of PCB area
Working voltage: 5V
Low leakage current
Low operating and clamping voltages
Solid-state silicon-avalanche technology
The EClamp1002A effectively replaces 10 discrete
components in a small SC-89 package to provide ESD
protection and EMI filtering. Each device requires less
than 2.9mm2 of PCB area with a low profile of only
0.60mm. This small package will protect and filter up
to two lines. This small outline makes the device
especially well suited for portable applications.
Mechanical Characteristics
SC-89 (SOT-666) package
RoHS/WEEE Compliant
Lead Finish: Matte Tin
The TVS diodes are bidirectional for supporting bipolar
audio signals without distortion. 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 device has very low insertion loss in the
pass band (to approximately 10MHz) and high attenua-
tion at frequencies ranging from 800MHz to 3GHz. Each
line features two stages of TVS diode protection. They
feature large cross-sectional area junctions for conducting
high transient currents. They offer desirable characteris-
tics for board level protection including fast response time,
low operating and clamping voltage, and no device degra-
dation.
Molding compound flammability rating: UL 94V-0
Marking : Marking Code
Weight: 2.9mg (typical)
Packaging : Tape and Reel per EIA 481
Applications
Cellular Handsets & Accessories
Cordless Phones
Personal Digital Assistants (PDAs)
Webpads & Handhelds
Notebook
Portable Instrumentation
MP3 Players
Dimensions
Schematic & Pin Configuration
1.70
0.50
1.25 1.70
0.30
0.60
SC-89 (Top View)
www.semtech.com
Revision 01/12/2006
1
EClamp1002A
PROTECTION PRODUCTS
Absolute Maximum Rating
Rating
Symbol
Value
Units
Steady-State Power
Pss
100
mW
ESD per IEC 61000-4-2 (Air)
ESD per IEC 61000-4-2 (Contact)
>16
>10
VESD
kV
Operating Temperature
Storage Temperature
TJ
-55 to +125
-55 to +150
oC
oC
TSTG
Electrical Characteristics (T=25oC)
Parameter
Symbol
VRWM
VBR
Conditions
Minimum
Typical
Maximum
5
Units
TVS Reverse Stand-Off Voltage
TVS Reverse Breakdown Voltage
TVS Reverse Leakage Current
Series Resistance
V
V
It = 1mA
VRWM = 5V, T=25°C
Each Line
6
IR
5
µA
R
8.5
10
11.5
160
Ohms
pF
Total Capacitance
CTOT
Any I/O to Ground
VR = 0V, f = 1MHz
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2006 Semtech Corp.
2
EClamp1002A
PROTECTION PRODUCTS
Typical Characteristics
Typical Insertion loss
Analog Crosstalk
CH1S21 LOG
6 dB / REF 0 dB
CH1 S21 LOG
20 dB/REF 0 dB
1: -3.9607 dB
42MHz
2: -22.231 dB
900 MHz
3: -14.018 dB
1.8 GHz
0 dB
1
-6 dB
4: -10.484 dB
2.5 GHz
-12 dB
-18 dB
-24 dB
4
3
2
-30 dB
-36 dB
-42 dB
1
10
100
3
1
3
.
STOP 000 000000 MHz
.
START 030MHz
MHz
START 030 MHz
MHz
MHz
GHz
GHz
3
.
STOP 000 000000MHz
.
Capacitance vs. Reverse Voltage
(Normalized to 0 volts)
Clamping Voltage vs. Peak Pulse Current
14.000
1.6
1.4
1.2
1
12.000
10.000
8.000
6.000
4.000
2.000
0.000
0.8
0.6
0.4
0.2
0
Waveform
Parameters:
tr = 8µs
f = 1 MHz
4.5 5
td = 20µs
0
0.5
1
1.5
2
2.5
3
3.5
4
0
1
2
3
4
5
6
7
Reverse Voltage - VR (V)
Peak Pulse Current - IPP (A)
ESD Clamping (8kV Contact)
ESD Clamping (15kV Air)
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2006 Semtech Corp.
3
EClamp1002A
PROTECTION PRODUCTS
Applications Information
Device Connection Options
Layout Examples
The EClamp1002A provides EMI filtering and ESD
protection in a small SC-89 package for speaker port
applications. The equivalent circuit diagram is shown
below. The layout of the device is designed such that
the data lines can be routed through the device. The
first line pair enters at pins 1 and exits at pins 6. The
second line pair enters at pins 3 and exits at pins 4.
The device is symmetrical so the above connections
may be reversed. Layout examples are shown to the
right.
Audio
1
2
3
6
5
4
EClamp-
1002A
Codec
Speaker
Option 1
Pin
Identification
Circuit Board Layout Recommendations for Suppres-
sion of ESD.
1
6
Line 1 In (From Speaker)
Line 1 Out (To Audio Circuit)
Line 2 In (From Speaker)
Line 2 Out (To Audio Circuit)
Ground
Good circuit board layout is critical for the suppression
of ESD induced transients. The following guidelines are
recommended:
3
z
z
z
z
Place the TVS near the input terminals or connec-
tors to restrict transient coupling.
Minimize the path length between the TVS and the
protected line.
Minimize all conductive loops including power and
ground loops.
The ESD transient return path to ground should be
kept as short as possible.
4
2, 5
Audio
4
5
6
3
EClamp-
1002A
Codec
Speaker
2
1
z
z
Never run critical signals near board edges.
Use ground planes whenever possible.
Matte Tin Lead Finish
Matte tin has become the industry standard lead-free
replacement for SnPb lead finishes. A matte tin finish
is composed of 100% tin solder with large grains.
Since the solder volume on the leads is small com-
pared to the solder paste volume that is placed on the
land pattern of the PCB, the reflow profile will be
determined by the requirements of the solder paste.
Therefore, these devices are compatible with both
lead-free and SnPb assembly techniques. In addition,
unlike other lead-free compositions, matte tin does not
have any added alloys that can cause degradation of
the solder joint.
Option 2
Pin
6
Identification
Line 1 In (From Speaker)
Line 1 Out (To Audio Circuit)
Line 2 In (From Speaker)
Line 2 Out (To Audio Circuit)
Ground
1
4
3
2, 5
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2006 Semtech Corp.
4
EClamp1002A
PROTECTION PRODUCTS
Outline Drawing- SC-89 (SOT-666)
D
A
D
DIMENSIONS
INCHES
MILLIMETERS
N
DIM
MIN NOM MAX MIN NOM MAX
-
-
-
-
.019
.005
.003
A
b
c
D
E
.024 0.50
.012 0.15
.007 0.10
0.60
0.30
0.18
-
E/2
-
.059 .063 .067 1.50 1.60 1.70
.061 .063 .067 1.55 1.60 1.70
E1
E
L
E1 .043 .047 .049 1.10 1.20 1.25
e
L
.020 BSC
0.50 BSC
c
.003 .008 .012 0.10 0.20 0.30
L1 .003 .006 .008 0.10 0.15 0.20
2
6
6
1
N
aaa
.004
0.10
e
Nxb
A
aaa
C A-B D
B
C
L1
NOTES:
1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).
DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS
OR GATE BURRS.
2.
Land Pattern- SC-89 (SOT-666)
X
DIMENSIONS
Y
Y
DIM
INCHES
(.057)
.020
MILLIMETERS
(1.45)
0.50
0.60
0.30
0.85
2.30
C
P
G
X
Y
Z
C
G
P
Z
.024
.012
.033
.090
NOTES:
THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY
CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR
COMPANY'S MANUFACTURING GUIDELINES ARE MET
1.
www.semtech.com
2006 Semtech Corp.
5
EClamp1002A
PROTECTION PRODUCTS
Marking Code
Ordering Information
Lead
Finish Marking
Device
Qty per Reel
Part Number
Reel
Size
EClamp1002A.TCT Pb Free
O
3,000
7 Inch
EClamp and EMIClamp are trademarks of Semtech Corporation
O
Note:
(1) Device is symmetrical so there is no pin 1 identifier.
Tape and Reel Specification
O
O
O
Tape Specification and Device Orientation
Contact Information
Semtech Corporation
Protection Products Division
200 Flynn Rd., Camarillo, CA 93012
Phone: (805)498-2111 FAX (805)498-3804
www.semtech.com
2006 Semtech Corp.
6
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