Miniaturized Encoder/decoder for Infrared Wireless Communication Measures 4x4x0.75mm

(Product News, 12 Aug 2008)

Vishay Intertechnology Inc. has released TOIM5232, a new miniaturized encoder/decoder for serial infrared (IrDA) wireless communication. The new device provides proper pulse shaping of RS-232 data signals for serial infrared (SIR) IrDA transceivers and supports data rates from 1.2kbps to 115.2kbps. Offered in a 4x4x0.75mm QFN (quad flat no leads) package, the TOIM5232 features the same operation and performance as the TOIM4232 in a fraction of the space.

Typical applications for the TOIM5232 will include wirelessly enabled data loggers and utility meters; IrDA communication in mobile phones, notebook computers, PDAs, and other consumer electronics; and medical applications such as glucose meters and home diagnostic meters.

The TOIM5232 features an operating voltage range of 2.7V to 3. 6V with 5V tolerant inputs. Maximum current consumption in standby mode is a very low 1µA. A programmable baud clock generator gives designers a choice of 13 baud rates from 1.2kHz to 115kHz or an external clock may be used.

In transmit mode, the TOIM5232 shortens RS-232 output signals to IrDA-compatible electrical pulses to drive an infrared transmitter. In receive mode, the TOIM5232 stretches the received infrared pulses to the proper bit width, depending on the operating bit rate. The TOIM5232 is software programmable through the RS-232 port and needs no external wiring for the baud rate setting.

Click here for more information on Vishay's TOIM5232 Miniaturized Encoder/Decoder

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