Infrared Controller Offers Seamless, Low-cost Data Transfer

A new infrared encoder/decoder from Texas Instruments gives designers of personal computers and other systems a low-cost and easy-to-implement data transfer capability. The controller device conforms to the Infrared Data Association (IrDA) standard, making it compatible with infrared transceivers that do likewise. TI's TIR1000 controller interfaces directly to a UART (Universal Asynchronous Receiver/Transmitter) which is found in most computer systems' serial ports. The TIR1000 receives serial data from a UART and transfers it to an infrared transceiver, which in turn transfers the data at a maximum rate of 115.2 Kbps (kilobits per second) to an infrared transceiver in another system. Applications for IrDA-compliant devices include multimedia, automotive, set-top boxes, computer-to-peripheral transfers, telephony, personal digital assistants (PDA), industrial and medical equipment.

Pricing and Availability

The TIR1000 is available now from Texas Instruments and its authorized distributors in an 8-pin small outline package (SOP). Suggested resale pricing in quantities of 1,000 is $1.15.


Features					Benefits

Conforms to IrDA (Infrared			Low-cost infrared data  		 						
Data Association) standard			transfer capability.											Interfaces directly with no 						intervening logic to IrDA 																		transceivers.


Interfaces directly to a UART (Universal	No glue logic needed to interface to the
Asynchronous Receiver/Transmitter)		serial port of most personal computers and
						other computer systems.


Provides 1200 bps to 115.2 Kbps			Relatively high speed for 						computer-to-
transfer rates					peripheral transfers and other cable-free
						data transfer applications.


3V to 5V Power Supply				Suitable for low-power, 						portable
						applications such as 						handheld devices,
						PDAs and others.


Decodes both negative or positive		Compatible with virtually 						all IrDA
pulses						transceivers, many of which generate
						either positive or negative 						pulses.


8-pin Small Outline Package (SOP)		Compact package to save board space.

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