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UTMI+ OTG transceiver passes Hi-Speed USB test

Posted: 04 May 2005 ?? ?Print Version ?Bookmark and Share

Keywords:standard microsystems? smsc? physical layer transceiver? usb3500?

Standard Microsystems Corp. (SMSC) has developed a standalone, hi-speed physical layer transceiver (PHY) that supports the highest level in the UTMI+ standard.

The USB3500 is a UTMI+ standalone, host or On-the-Go (OTG) transceiver that supports level 3.

The UTMI+ standard defines the interface for transceiver macrocells that are created by chip and IP vendors and placed by ASIC and component manufacturers in mobile devices to directly communicate with each other without requiring a host PC.

Different UTMI+ levels allow ASIC design with the required complexity level and without unused logic.

Level 3 adds support for using USB 2.0 full-speed hubs in mobile communications systems. It enables the OTG transceiver's host controller to communicate with low-speed devices that are connected to a USB full-speed hub controller.

SMSC's latest USB 2.0 transceiver passed hi-speed USB compliance testing with the USB Implementers Forum (USB-IF), which recently selected the USB3500 to be the reference PHY in the new hi-speed OTG compliance test platform, introduced at the USB-IF compliance workshop in Tokyo last month.

Interoperability of the USB3500 has been proven through extensive testing with leading hi-speed OTG IP providers. With its digital interface, the USB3500 is suitable for FPGA solutions that designers of consumer electronics products continue to choose because of the lower risk and faster time-to-market programmable devices offer, the company said.

The USB3500 is available in an 8-by-8-by-0.9mm, 56-pin QFN package. Qualification samples and production quantities are available today. In 10,000-unit quantities, it is priced at $2.15 per unit.

- Ismini Scouras

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