Vishay Intros TFBS4650/TFBS4652 IrDA SIR Transceivers
Vishay Intertechnology Inc. (Malvern, PA) introduced two IrDA® serial infrared (SIR) transceivers, the new TFBS4650 and TFBS4652, which measure 1.6 mm x 6.8 mm x 2.8 mm. Used as drop-in replacements for the HSDL3208 and HSDL3209, the transceivers offer a 25% lower 75 µA idle current and a 36% higher 12.5 mW/sr transmit intensity.
Aimed at data transfer applications in mobile phones, camera phones, smart phones and PDAs, the new transceivers enable long on-axis transmit distances with low power consumption. The TFBS4650 and TFBS4652 also enable mobile phones and PDAs to function as universal remote controls for televisions, DVD players and recorders, and other home appliances over a range of 5.5 m.
The operating voltage range of the TFBS4650 and TFBS4652 is from 2.4 V to 3.6 V. The TFBS4650 I/O voltage is dependent on the voltage of the external power supply. The TFBS4652 I/O voltage can be as low as 1.5 V, allowing direct connection to a microcontroller's I/Os with 1.5 V or lower logic. Integrated EMI protection eliminates the need for an external shield.
Both devices are lead-free and capable of lead-free processing, as well as being fully compliant with the European Union's RoHS 2002/95/EC and WEEE 2002/96/EC environmental directives. Samples and production quantities are available now with lead times of six weeks. Pricing for US delivery in 100,000-piece quantities is $1.30.
