Fairchild Semiconductor Corporation

Maxim Integrated Products, Inc.

Jeffrey Lee Lo

Matthew Derrell Felder

Douglas Edward Heineman

Hubert Young

A method and apparatus can include: audio interface pins coupled to swappable connections including a BCLK, an LRCLK, a DIN, and a DOUT; a BCLK determiner configured to identify the BCLK as the swappable connection with a highest frequency; an LRCLK determiner configured to: measure cycle lengths, compare the cycle lengths to a pre-defined multiple, identify the LRCLK as the swappable connections, and output an association between the LRCLK and one of the audio interface pins; and a mode determiner configured to identify and output a mode based on the association of the BCLK to the audio interface pins and the association of the LRCLK to the audio interface pins.

Pin encoded mode selection system

This document discusses, among other things, a system and method for receiving an input signal and power supply information, and amplifying the input signal by a gain value determined as a function of the power supply information.

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Sunnyvale, CA, United States of America

Jeffrey Lee Lo