LP39542 Datasheet, PDF (40/58 Pages) National Semiconductor (TI) – Advanced Lighting Management Unit

EXAMPLE 5
— ^{MAIN BACKLIGHT}
— ^{SUB BACKLIGHT}
— ^{AUDIO SYNCHRONIZED FUNLIGHTS}
— ^{RGB INDICATION LIGHT}
Here, a second order RC-filter is used on the ASE input to convert a PWM signal to an analog waveform.
USING PWM SIGNAL
More application information is available in the document "LP39542 Evaluation Kit".
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