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Infra-red transceiver for portable devices

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AGILENT Technologies has announced the industry's smallest fast infrared (FIR) transceiver for mobile phones, personal digital assistants (PDAs) and digital cameras.

With a height of only 2.5mm, the Agilent HSDL-3220 features the lowest profile of any medium infrared (MIR) or FIR transceiver on the market, providing mobile phone manufacturers greater flexibility when designing clamshell and ultra-slim handsets.

The HSDL-3220 transceiver supports the IrDA low power specification and operates at transmission speeds ranging from 9.6kb/s to 4Mb/s. It is capable of operating with logic levels as low as 1.8V and from power sources ranging from 2.7V to 3.6V.

This allows the transceiver to work with today's low-power microprocessor chipsets and ASICs that operate at 1.8V or greater signal levels, and in mobile products operating from a single lithium-ion cell. The device consumes only 70nA in shutdown mode.

The HSDL-3220 IrDA-compatible IR transceiver can offer improved performance and increased battery life in applications ranging from PDAs and mobile phones to digital still and video cameras and medical data-collection devices.

Its small footprint package -- 2.5mm (height) by 8mm (width) by 3mm (depth) -- is pin-compatible with the Agilent HSDL-3211 1.15Mb/s MIR transceiver, making it easy to update existing handheld device form-factors with higher performance infrared connectivity.

The new transceiver module is IEC 825-1 Class 1 eye safe.

The HSDL-3220 also supports infra-red financial management (IrFM) and other data transfers with a link distance of up to 50cm.

The IrFM point-and-pay profile is designed to enable users to perform wireless financial transactions between a mobile device such as a cellular phone or PDA and a point-of-sale terminal or ATM equipped with an IR port.

It supports the use of most financial instruments, including credit and debit cards, and provides digital receipts.

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