ECLAMP3202A Datasheet, PDF (1/6 Pages) Semtech Corporation – ESD/EMI Protection for Microphone Ports

PROTECTION PRODUCTS - EMIClamp^TM
Description
The EClamp^TM3202A 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
microphone port in cellular phones and other protable
electronics. The EClamp3202A 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.
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 inser-
tion loss in the pass band and high attenuation at fre-
quencies ranging from 800MHz to 3GHz. Each line fea-
tures two stages of TVS diode protection. They feature
large cross-sectional area junctions for conducting high
transient currents. They offer desirable characteristics
for board level protection including fast response time,
low operating and clamping voltage, and no device deg-
radation.
EClamp3202A
ESD/EMI Protection
for Microphone Ports
PRELIMINARY
Features
‹ 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
Mechanical Characteristics
‹ SC-89 (SOT-666) package
‹ Lead Finish: Matte Tin
‹ Molding compound flammability rating: UL 94V-0
‹ Marking : Marking Code
‹ RoHS/WEEE Compliant
‹ Packaging : Tape and Reel per EIA 481
Applications
‹ Cellular Handsets and 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
Revision 01/13/2006
1
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