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National Application Note AN-1147: Application Note 1147 LM2651_EVAL 1.5A High Efficiency Synchronous Switching Regulator Evaluation Board

National Application Note AN-1120: Application Note 1120 LM2675-5.0EVAL 1A Step-Down High-Efficiency SIMPLE SWITCHER Evaluation Board

National Application Note AN-1133: Application Note 1133 LM2653EVAL 1.5A Synchronous Switching Regulator Evaluation Board

National Application Note AN-1135: Application Note 1135 LM267X 3A, 5A Evaluation Boards

This application note concerns the DEMOTS4909 evaluation board, designed to evaluate the TS4909 low power stereo headphone amplifier with capacitor-less output.

This application note concerns the evaluation board DEMOTS488/9, designed to evaluate
the TS488 or TS489 pop-free 120mW stereo headphone amplifier.
In this document, you will find:
■ a brief description of the TS488/9 low power stereo audio amplifier
■ a description of the evaluation board and all of its components
■ the layout of the evaluation board

The aim of this document is to provide the necessary information to implement the modifications to connect the ST airbag eva board (MB467) to the ST10F252 evaluation board (MB449). A very brief application overview is followed by an explanation on how to manage the signals involved. Finally, hints on how to supply the entire system are provided.