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GbE LAN switches include ESD protection

Posted: 06 Jan 2006 ?? ?Print Version ?Bookmark and Share

Keywords:PI3L301D-A? PI3L500-A? analog switches? Pericom Semiconductor? electrostatic discharge?

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Pericom Semiconductor Corp. introduced a new pair of analog switches that support the highest level of electrostatic discharge(ESD)-specified protection for susceptible products ranging from PCs to TVs.

The PI3L301D-A and PI3L500-A devise are 3.3V, 16bit to 8bit, mux/demux Gigabit Ethernet (GbE) LAN switches with single enable and enhanced ESD protection. The PI3L500-A switch features additional LED switching.

These new devices meet or exceed the standards of all three ESD types, including Human Body Model (HBM), Contact Discharge and Machine Model for greater tolerance of high voltage surges and better protection of systems internal circuitry, said the company.

"According to the IEC specification, consumer products must provide the highest level of ESD support, which is 8kV of contact-ESD protection. Typically, external circuitries, such as diodes, are needed to achieve the higher ESD protection. Some external ESD solutions can cost up to 25 cents per Ethernet port. The same robust ESD support is now integrated into Pericom's new PI3L301D-A and PI3L500-A products," said Shaf Rahman, marketing director for Pericom. "With these enhanced LAN switches in the market, Pericom clearly maintains its leadership position in the GbE LAN switching applications for notebooks and many other consumer products," Rahman added.

Key features of the new analog switches include a 200ps bit-to-bit skew; -27dB crosstalk at 250MHz; 4? (typ) R-On; enhanced ESD protection (8kV for contact and 12kV for HBM); 250ps propagation delay; 9ns switching speed; 11pF (max) channel on-capacitance; and 3V to 3.6V Vcc operating range.

Available in Pb-free and green packaging (TQFN and TSSOP), the PI3L301D-A and PI3L500-A are priced at $1.50 for 1,000-unit orders. Free samples, datasheets, IBIS, application note and technical support are available at Pericom's website.




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