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Application Notes/
Technical Brief
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AN243
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Title:
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Fundamentals of the Infrared Physical Layer
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Name:
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AN243
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Date:
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1/19/04
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Author:
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Paul Barna
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Description:
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Infrared light, commonly referred to as “IR”, is a common easy-to-use,
low power and low-cost media to transmit information. Among the few “wireless”
communicatio choices, IR has the significant advantage of compatibility with hundreds
of millions of electronic devices with IR ports (i.e., laptop PCs, PDAs). The
vast majority of IR-capable devices are compatible with a set of standards established
by the Infrared Data Association, or IrDA®. These standards include guidelines
for implementing the IR Physical Layer (IrDA Serial Infrared Physical Layer specification),
ensuring that IR communication can be established through free space between two
dissimilar devices. This document describes the fundamentals of the infrared physical
layer, the IrDA standard and selecting the proper discrete emitter and photodiode
components for circuit implementation.
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Keywords:
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infrared,IrDA,tranceiver,IR
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Related Information
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App Notes and Source Code
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AN243
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