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NEW PRODUCT NEWS—edited by Rick Prescott

Infrared Transceivers

The new TFDS6401 and TFDS6402 are the latest products to be offered in the Vishay Telefunken "Dracula" package, which mounts to the edge of the PCB, thus reduces the transceiveręs height relative to the board. These are the first fast, infrared IrDA-compliant transceivers just 1.8 mm above the printed circuit board.

Complying with IrDA standards, the new transceivers offer data transmission rates up to 4 Mb/s at l-m distances. They enable infrared links among notebook and palmtop computers, digital still and video cameras, cell phones and pagers, and medical and industrial data collection devices. The TFDS6401 and TFDS6402 also enable exchange of files among those devices.

Integrated components include a photo pin diode, a high-power emitter, and low-power analog control circuitry. Internal AGC circuitry ensures maximum sensitivity to infrared light, even with optical interference. An operating voltage range of 2.6 to 5.5 V allows designers to use a single device for end products with a wide range of supply voltages.

The TFDS6401 provides an auto-detect plug-and-play feature. The TFDS6402 provides a tri-state output on the RXD pin, allowing several devices (IrDA transceivers or other components) to share the same communications bus.

Pricing for U.S. delivery in 100,000-piece quantities is $3.50.

Vishay Intertechnology, Inc.
(610) 644-1300
Fax: (610) 296-0657
www.vishay.com

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