• State Resolved
  • Locked Locked
  • Replies 4 replies
  • Answers 1 answer
  • Subscribers 30 subscribers
  • Views 429 views
  • Users 0 members are here
Support feedback
Options
Options
Related

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.

TPA3137D2: In datasheet , this part is used for BTL mode ， if i can use this part for SE mode ? any risks in this method?

Moon
Prodigy 120 points
Part Number: TPA3137D2

In old design ,we use this part for BTL mode ,and output connected with two RCA connector(L and R) .That means the voltage on RCA is bipolar . Now in new design ,we want the voltage on  RCA connector  is unipolar, if i just connect the OUTPL and OUTPR to the RCA+ , and the RCA- is connected  with AGND, is that works? Or some risks will happens.

I look forward your reply, by the way ,Merry Chaistmas !

  • 0
    Prodigy 120 points

    Sorry ,my description have some problems:In old design ,the voltage on RCA-/+ is unibipolar (the voltage on RCA+ and RCA- have different phase ,their amplitude is same )-this is BTL mode .Now i want the voltage is  bipolar ,and the voltage on RCA- is AGND,that meas the voltage on RCA+ is the bipolar. I think i can use one output of TPA3137D2 ,eg OUTPL connected with RCA+ (use a capacitance) .Is this works?

  • 0 in reply to Moon
    TI__Mastermind 19840 points

    Hi Moon,

    Do you mean that you just want to use on channel of TPA3137? The two channel of TPA3137 are separately, you can use one channel and disable the another one.

    Regards,

    Derek 

  • 0 in reply to Yanming Gong
    Prodigy 120 points

    Hi Derek：

    Your understanding is close but not accurate ,TPA3137 has two channel ,for one of channel of TPA3137,it has two output (eg: OUTPL and OUTNL). I want use one of them (eg: OUTPL , and disable OUTNL).Is this feasible?

  • 0 in reply to Moon
    TI__Mastermind 19840 points

    Hi Moon,

    I get it. But TPA3137 can not support your application. You can not only use OUTPL or OUTNL.

    Regards,

    Derek