2357NQ Datasheet, PDF (1/8 Pages) Gennum Corporation – Solid-state technology

PROTECTION PRODUCTS - EMIClamp^®
Description
The EClamp^®2357NQ is a low pass filter array with inte-
grated TVS diodes. It is designed to suppress unwanted
EMI/RFI signals and provide electrostatic discharge
(ESD) protection in portable electronic equipment. They
have been optimized for protection of touch screen dis-
plays, secure digital (SD) card interfaces, and color LCD
panels in cellular phones and other portable electronics.
The device consists of six pi filter circuits comprised of
TVS diodes for ESD protection, and a resistor capaci-
tor network for EMI/RFI filtering. A series resistor value
of 100Ω and a component capacitance value of 10pF
are used to achieve 20dB minimum attenuation from
1.0GHz to 3GHz. The device also includes 4 discrete
TVS diodes for dedicated ESD protection. All of 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 EClamp2357NQ is qualified to AEC-Q100 Grade 1
for Automotive use.
EClamp2357NQ
EMI Filter and ESD Protection
for Secure Digital Card Interfaces
Features
u EMI/RFI filter with integrated ESD protection
u ESD protection to IEC 61000-4-2 (ESD) Level4,
±15kV (air), ±8kV (contact)
u Filter performance: >30dB attenuation at 1.8GHz
u TVS working voltage: 5V
u Resistor: 100Ω +/− 15%
u Component Capacitance: 10pF (VR = 0V)
u EMI & ESD protection for six lines
u Dedicated ESD protection for four lines
u Solid-state technology
u AEC-Q100 Grade 1 Qualified.
Mechanical Characteristics
u 16 pin QFN
u RoHS/WEEE Compliant
u Nominal Dimensions: 3.0 x 3.0 x 1.0 mm
u Lead Pitch: 0.5mm
u Lead Finish: Matte Tin
u Marking: Marking Code
u Packaging: Tape and Reel per EIA 481
Package Dimensions
3.00
16
1
3.00
0.30
0.50
Applications
u Touch Screen Display Interfaces
u Secure Digital (SD) Memory Card Interfaces
u Multimedia Card Interfaces (MCI)
u Color LCD Panel Protection
u Cell Phone Handsets and Accessories
u Automotive Applications.
Schematic & Pin Configuration
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EClamp2357NQ-2-R1
0.60
16 Pin QFN (Top Side View)
Nominal Dimensions (in mm)
Revision 6/24/2013
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