IrDA transceivers

Tuesday, 04 October, 2005 | Supplied by: http://www.soanar.com/


Vishay Intertechnology has introduced what it claims is the industry's smallest FIR (fast infrared) IrDA transceivers.

With a height of 1.9 mm and footprint dimensions of 6.0 x 3.0 mm, the TFBS6711 and TFBS6712 are the thinnest, smallest FIR transceivers available.

The transceivers work over a typical distance of 50 cm at data rates up to 4 Mbps. They also enable mobile phones and PDAs to function as universal remote controls for televisions, DVD players/recorders and other home appliances.

The devices are also capable of transmitting remote control signals over 6.5 m. The transceivers feature an emitter with a wavelength that is closely matched to remote control receivers. By using the transceivers in a mobile phone, for example, design engineers can meet their IR remote control distance requirements without having to add a second, bulky emitter.

The TFBS6711 I/O voltage is defined by the external power supply voltage. The TFBS6712 I/O voltage equals 1.8, allowing direct connection to a microcontroller operating at 1.8 V.

Operating voltage for both transceivers is 2.4 to 3.6. Both devices feature a shutdown current of 0.01 µA and an idle supply current of 1.7 mA.

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