• State
  • Locked Locked
  • Replies 3 replies
  • Subscribers 30 subscribers
  • Views 1341 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPA6211A1: TPA6211A1

user3743279
Prodigy 30 points
Part Number: TPA6211A1
Other Parts Discussed in Thread: TPA2038D1, TPA2011D1

Hi TI,

I am using the TPA6211A1 amplifier with Single-ended inputs and I connect  a 4ohm/3W speaker to the output of the TPA6211A1.

When I play any sound files through the amp the output is not very loud compared with the 4ohm/2W speaker especially in the bass.

And background noise became even worse.

Is there some problem with my design?

  • 0
    TI__Mastermind 20085 points
    Hello,

    Welcome to E2E, thanks for your interest in our products.
    The schematic seems to be right. But The device needs a load of 3 ohms and a differential input to achieve 3W according to with the datasheet.
    I have some questions for you. Could you provide more details about your application? Are you using an output filter? Could you send me some graphs when the problem is happening?

    Best Regards
    José Luis Figueroa
    Applications Engineer
  • 0 in reply to José Luis
    Prodigy 30 points

    Hello Jose Luis,

    Thank you for answer.

    My design looks like below:

    Besides,I have a question that how can I select the right speaker with TPA6211A1 (include power, impedance  etc.).

    And is there anyother type of audio amplifiers that can fit the 3W/4ohm speaker ?

    Best Regards

  • 0 in reply to user3743279
    TI__Mastermind 20085 points
    Hi,

    You could disconnect the output filter of the TPA6211a1 in order to check that the device is working properly and discard a problem on the output filter.
    You can have a look at the following devices: TPA2011D1 and TPA2038D1. They are Class D audio amplifiers and provide better efficiency than TPA6211a1.

    Please let me know your thoughts.

    Best Regards
    José Luis Figueroa
    Applications Engineer