• State Resolved
  • Locked Locked
  • Replies 7 replies
  • Answers 1 answer
  • Subscribers 30 subscribers
  • Views 813 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.

TAS5411-Q1: effective frequency bandwidth and sampling rate

Nam, Dino
Expert 6445 points
Part Number: TAS5411-Q1


Dear team, 

Would you let me know effective frequency bandwidth and sampling rate of TAS5411-Q1

Thank you. 

  • 0
    TI__Mastermind 24835 points
    Hello, we are looking into this and will get back to you later.
  • 0
    TI__Mastermind 33420 points

    Hi Dino,

    TAS5411-Q1 is an analog input class-D amplifier.  It has a flat frequency response in the audio band (20Hz-20kHz).  The PWM output can be programmed to run at 400kHz or 500kHz.  This device does not have digital (I2S) input hence sampling rate does not apply for this amplifier.

    Hope this helps.

    Best, Tuan

  • 0 in reply to Tuan
    TI__Expert 6445 points
    Hello Tuan,

    Thank you for your quick reply. I understood TAS5411-Q1 doesn't need sampling process. One more question.
    I understand sampling function is needed for converting Analog signal to Digital signal. Is it right?
    But I2S is already digital data. why this data need sampling process? My question might be poor but please advice this.

    Thank you.
  • 0 in reply to Nam, Dino
    TI__Mastermind 33420 points
    Hi Dino,
    The input to TAS5411-Q1 is analog. There is no I2S data.
    Can you tell me what the customer application is or how they will use the TAS5411-Q1?

    Thank you,
    Tuan
  • 0 in reply to Tuan
    TI__Expert 6445 points
    Hi Turn,

    I am sorry for confusing.
    I knew the input of TAS5411-Q1 is analog And I understood your answer that TAS5411-Q1 doesn't need sampling process.
    The customer application is automotive cluster and we already won TAS5411-Q1 for their application.
    My question like above, "I2S is already digital data. why this data need sampling process?" is not related TAS5411-Q1.
    Separately, My question is based on the assumption that we are using device with I2S. please advice on this.

    Thank you.
  • 0 in reply to Nam, Dino
    TI__Mastermind 33420 points

    Hi Dino,

    Your question: "why this data need sampling process?".   I don't know what "sampling process" means unless it is described in a data sheet.

    If this question relates to general I2S data then: the I2S - Inter-IC sound "bus" needs at least three signals: BCLK - bit clock (sometimes it's called SCLK - sampling clock), LRCLK (Left-Right clock or sampling rate Fs), and data.  Some devices require MCLK - master clock (sometimes it's called SCLK - system clock) to work. So "sampling" means that it takes the analog data and converts it to digital by sampling the data.

    Some I2S devices have internal audio digital processing functions, such as EQ, mixing, delay, etc.  We need to know the device to be able to know what audio processing it can do.  So "process" means in the above case is the post processing of the digital audio data.

    You can get more detail on the I2S protocol here: https://en.wikipedia.org/wiki/I%C2%B2S

    But I'm sorry unless I have the context of "sampling process" I cannot explain the meaning.

    Hope this helps.

    Best, Tuan

  • 0 in reply to Tuan
    TI__Expert 6445 points
    Hello Tuan,

    Thank you for your comment.
    After studying more about Audio system individually , I will touch you again.

    Again, Thank you.