SLOA292 May   2020 TAS5760LD

 

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5.3 Conventional Solution With External BJT Switch

If the design still cannot resolve the pop noise, the conventional solution is that the SOC uses general-purpose input/output (GPIO) to control the external BJT. Figure 15 shows the implementation on how to use BJT at the output stage.

sloa292-system-processor-control-external-bjt-before-system-turns-off.gifFigure 15. System Processor Control External BJT Before System Turns Off