• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 29 subscribers
  • Views 66 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.

DIX4192: Output sound heard the noise

Henry Wang3
Genius 3065 points
Part Number: DIX4192

Tool/software:

Hi Sir,

My customer had connect 0.1uF to GND for each unused RX pins, but the output sound still heard the noise, could you please review the below schematics and advise some comments? Thanks!

  • 0
    TI__Mastermind 25900 points

    Hello,

    You can ground the unused digital inputs via resistors to GND .

    1)use pull up resistors for SDA and SCL if it is not done in other end. I would also use pu/pd resistors for digital pins such as /RST  .

    2)Also provide the RXCKI with a master clk ( reference clk) as i see it is not connected to any source.  

    3)for all supplies use a 10u and 0.1uF caps

    You can refer to User's Guide as reference for schematics in general. 

    Regards,

    Arash