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TAS5414C-Q1 Frequency Response

Sadanori Kato
Guru 36490 points
Other Parts Discussed in Thread: TAS5414C-Q1

Hi,

We believe that although the frequency range depends on values of LC filter, we would like to confirm whether the high cut-off frequency is able to increase up to 40kHz.
Could you please tell us your advice?

Best Regards,
Kato

  • 0
    TI__Mastermind 34235 points

    Kato-san,

    The frequency response of the TAS5414C-Q1 is rated to 20kHz per the datasheet.  We cannot guarantee a flat frequency response above this.  We do know from our tests that the gain will start to reduce above 25kHz.  We have not tested this on many devices and have not tested it over temperature and voltage. 

    That being said, the customer could manipulate the LC filter to have a higher Q at 40kHz so the gain at higher frequencies can be increased to flatten or extend the frequency response.  This operation is outside the design parameters of the device so we cannot guarantee that all the devices will behave the same above 20kHz.

  • 0 in reply to Gregg Scott
    Guru 36490 points

    Hi Gregg-san,

    Thank you for explaining.
    I understood and will contact you again if I have any questions.

    Best Regards,
    Kato