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New Semtech Protection Device Targets Next-Generation MDDI Mobile Phones

Camarillo, California - Semtech Corp. announced the RClamp™0504P, the latest member of its RailClamp® protection family, that features the low capacitance needed for next-generation clamshell and game-playing mobile phones.

The RClamp0504P is aimed at the emerging crop of phones that support the mobile display digital interface (MDDI) standard, a high-speed, serial interconnection technology that simplifies the design of clamshell phones by reducing to as little as four the number of wires that run across the handset’s hinge to connect the LCD display to the digital baseband controller. The device is also ideal for the keypad of game-playing phones where rapid key pressing creates a need for low-capacitance protection. Other applications for the RClamp0504P include USB and Ethernet ports, and other high-speed data lines.

The RClamp0504P can protect four high-speed data lines operating at up to 2 GHz without signal degradation, and features capacitance of less than 3 pF. The new device also features a surge capacity that meets all relevant IEC standards for mobile phones.

“The need for protection devices in mobile phones is growing dramatically as new protection standards and popular phone-supported applications dictate that phone makers rethink how to minimize stress on key components,” said Tom Dugan, Semtech's Director of Protection Products. “This RailClamp family addition is a dramatic advance, offering the protection characteristics these phones need in an elegantly packaged, robust solution.”


The RClamp0504P is offered in a 1.6 mm by 1.6 mm leadless package with a low 0.6 mm profile. This SLP package is more than 50% smaller than the next smallest multi-line device. The size advantage stems from the RClamp0504P’s single-die design, a Semtech-specific feature that is a result of company’s process technology advances.

The lead-free design of the device complies with the European Union’s Restriction on Hazardous Substances in Electrical and Electronic Equipment (RoHS) directive to meet worldwide environmental and regulatory requirements.

Key Features of the RailClamp0504P

  • Low capacitance (<3pF) for high-speed interfaces
  • No insertion loss to 2.0GHz
  • Protects up to four lines
  • Packaging: leadless design measuring 1.6 x 1.6 x 0.6 mm
  • Transient protection for high-speed data lines to IEC 61000-4-2 for ESD, IEC 61000-4-4 for EFT and IEC 61000-4-5 for lightning
  • ESD protection: 15kV (contact) 25kV (air) per IEC 61000-4-2
  • Low leakage current and clamping voltage
  • Low operating voltage: 5.0V
  • Lead-free; complies with RoHS/WEEE

Miércoles, 19 Octubre, 2005 - 12:00
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