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Original question:

TAS5825M: Multi Device PWM Phase Sync

TAS5825M: Syncing requirements and sequence

FXtreme Electronics
Prodigy 210 points
Part Number: TAS5825M


Hi:)

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When syncing multiple TAS5825 devices with I2S, is it necessary to have each TAS5825 share the exact same I2S-Bus (LRCLK, BCLK), or is it possible to have a separate I2S-Bus for each device based on the same time-domain, eventhough each I2S-Bus might boot up at a different time? 

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Thanks!

  • +1
    TI__Mastermind 20541 points

    hi, Diederek

    multi-devices do work with separate i2s bus.

    but in my understanding, make separate i2s bus exactly boot up at the same time seems much more difficult.

    little variance between each separate i2s bus might lead to syncing fail.

    so using same clk should be the optimal to sync all devices.

    tks

    jesse