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TMUX4051: Audio Switch IC

Pham But
Prodigy 30 points

Part Number: TMUX4051
Other Parts Discussed in Thread: TS5A22364, TMUX2889

Hi, I have an application involving audio signals and would appreciate your help in verifying the following:
Can the TMUX4051 IC be used to switch audio signals? Are there any design considerations or precautions required to ensure it is suitable for audio signal switching applications?

  • 0
    TI__Genius 10780 points

    Hi Pham,

    The TMUX4051 analog multiplexer can indeed be used to switch audio-frequency signals, though it's not specifically designed as a dedicated audio switch. For audio applications, you typically want a lower Ron to minimize signal attenuation.

    While the TMUX4051 has a higher Ron (70Ω), it may still be suitable depending on your audio quality requirements and system impedances. However, this Ron can cause signal loss through voltage divider effects.

    Overall, the TMUX4051 is a passive multiplexer that can function in audio applications, but its specifications may not be optimal compared to our dedicated audio devices like the TMUX2889 or TS5A22364, which feature much lower Ron values (typically <0.1-5Ω) and are specifically designed for high-quality audio signal routing with minimal distortion and noise.

    Thank you,

    Arya

  • 0 in reply to Arya Hussein
    Prodigy 30 points

    Hi Arya,
    Thank you for your feedback,
    Does the TMUX4051 operate with a voltage of ±12V?

  • 0 in reply to Pham But
    TI__Genius 10780 points

    Hi Pham,

    Yes, the     TMUX4051 can operate with a dual voltage of +-12V

    Thank you,

    Arya