TPA4411 Output Impedance of OUTR and OUTL

Sadanori Kato

Guru 36490 points

Other Parts Discussed in Thread: TPA4411

Hi,

Could you please tell us the output impedance of OUTR and OUTL for TPA4411 as below?

Best Regards,
Kato

over 9 years ago

0 Don Dapkus over 9 years ago

TI__Guru**** 189399 points

Hi, Kato-san,

In normal operation, the output impedance is a few ohms. This is a closed-loop amplifier, so it sets the output impedance.

For Shutdown mode, is is appx 50 ohms to ground.

Our newer devices have higher output impedance in SD mode if you want to parallel drive the same output with different sources.

-d2

0 Sadanori Kato over 9 years ago in reply to Don Dapkus

Guru 36490 points

Hi Don-san,

Thank you for your support.
I understood and will inform our customer of your information.

Best Regards,
Kato

0 Don Dapkus over 9 years ago in reply to Sadanori Kato

TI__Guru**** 189399 points

Thanks, Kato-san! Let us know if there are further questions.

-d2

0 Sadanori Kato over 9 years ago in reply to Don Dapkus

Guru 36490 points

Hi Don-san,

Thank you for your reply even though you are busy.
I greatly appreciate your cooperation.

Best Regards,
Kato

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TPA4411 Output Impedance of OUTR and OUTL