TLV320AIC3107: Schematic review

Shu-Cheng LIN

Guru 11785 points

Part Number: TLV320AIC3107

Hi Sirs,

Sorry to bother you.

Could you help review AIC3107 schematic as below?

Is MIC_DET directly connected to the MIC L?

over 4 years ago

0 Steve-Wilson over 4 years ago

TI__Mastermind 30030 points

Shu-Cheng,

1. Unused analog inputs should be tied together and terminated with 0.47uf Capacitor to GND.

2. make sure that the decoupling capacitors are close to the supply pins. It might be wise to add some ferrite beads or something between the SPKVDD pins and the reset of the supply.

Everything else looks good to me.

best regards,

-Steve Wilson

0 Shu-Cheng LIN over 4 years ago in reply to Steve-Wilson

Guru 11785 points

Hi Sirs,

Thanks for your reply.

Based on unused pin comment, update our schematic as below

Could you help check it?

0 Steve-Wilson over 4 years ago in reply to Shu-Cheng LIN

TI__Mastermind 30030 points

Shu-Cheng,

make sure that the bypass switch is never enabled as it will short the output to GND.

honestly It might make more sense to just connect the SWOUTM and SWOUTP with a 0.47uf cap to god too.

best regards,

-Steve Wilson

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TLV320AIC3107: Schematic review