• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 30 subscribers
  • Views 385 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.

LM49450 - Tuning the Charge Pump

Yuan Wang
Prodigy 50 points
Other Parts Discussed in Thread: LM49450

For Nvidia:

We have a question regarding the DAC Amp LM49450. Is there a way to tune the charge pump (either through registers or capacitor value) such that the speaker volume can be louder? We have already maximized the volume registers to 0x1F.

Thank you for the help.

  • 0
    TI__Mastermind 27900 points
    Hi Yuan,

    Have you tried changing the value of the CHARGE PUMP CLOCK REGISTER (0x02h)? I do not have much experience with this part so I will have to investigate more, but this will change the clock controlling frequency of the charge pump.

    Justin