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TAS6421-Q1: power supply of PVDD

liujian zhang
Prodigy 40 points

Part Number: TAS6421-Q1

when we play music, the ripple of PVDD as below waveform show, the frequency seems as internal switch frequency(2.1MHz), is it normal? the peak-peak voltage can reach to 100mV, if we can reduce this peak-peak value by any mothed?