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[ TPA3118D2 ] Negative Voltage appeared on OUTPUT pins during MUTE

Kenichiro
Mastermind 9165 points
Other Parts Discussed in Thread: TPA3118D2, TPA311

[ TPA3118D2 ] Negative Voltage appeared on OUTPUT pins during MUTE

Hi,

My customer try to use TPA3118D2 with their a bit special load. This load generates the ground-centered voltage swing on output when TPA3118D2 is muted. Can you help to clarify whether this potentially cause any of failure?

- ground-centered voltage swing
- 1Vpp
- OUTPR/OUTNR with reverse phase
(OUTNL and OUTPL also similar)
- duration is around 1sec to 2sec

I can send waveform of this behavior, please send an e-mail to me.
tanaka-k(at)clv.macnica.co.jp

Thanks,
Ken

2016/02/19: Subject corrected from TPA3112D2 to TPA3118D2.