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1:2/2:1 audio switch for TDM purpose

user4979899
Expert 3080 points
Other Parts Discussed in Thread: TS5A22362, TS5A22364, TS5A22366, TMUX1574, TS5A22364-Q1, TS5A23157-Q1

Hi Sir,

could you please help to suggest a solution which support TDM 1:2/2:1 audio switch purpose?

Thanks

  • 0
    TI__Mastermind 45605 points

    Anne,

    It appears that the TDM (Time Domain Multiplexing) audio signal is a digital audio format.  Since it is digital interface the TI analog audio switches such as the TS5A22362, TS5A22364, and TS5A22366 will be overkill for handling low current digital signals.  

    The TDM protocol doesn't seem to have a defined standard but saw a document it is similar to I2S and about 25MHz but that can change from system to system.  Would you please verify the system voltage, number of data lanes needing to switch, and clock bandwidth?

    The TMUX1574 is a good 4-channel 2:1 switch if TDM is four channel similar to I2S.

    Thank you,

    Adam

  • 0 in reply to Adam Torma
    TI__Expert 3080 points

    Hi Adam,

    Thanks for your feedback, and my customer is looking for a 4 channel 1:2 solution which also need support AEC-Q100,

    TMUX1574 is fine for functional but it is not AEC-Q100.

    So I plan to suggest to use 2 pcs TS5A22364-Q1 for it, any concern, please let me know,

    Thanks

  • 0 in reply to user4979899
    TI__Mastermind 45605 points
    Anne,

    If you need automotive rated 2:1 2-channel device for digital signaling application there is a lower cost solution than the TS5A22364-Q1 using the TS5A23157-Q1.

    Thank you,
    Adam