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TDA4VMXEVM: 32.768KHz

Alex Lai70
Prodigy 215 points

Other Parts Discussed in Thread: TDA2

In PROC079E2A SCH, component U152 and Y8 can be saved if we use PROC078E5 (Locationn Y8) as SOC 32.768KHz source?

One is using RTC (Coin Batt) Power and The other is using SOC standby power, right?

  • 0
    TI__Mastermind 25150 points

    Hi Alex,

    TDA4 doesn't include a RTC hardware on-chip like TDA2 did. If your design requires "real" RTC function, external RTC IC/crystal/battery must be used.

    The 32.768k crystal connected to the SoC is for an optional oscillator used in some low-power modes, for example, for precise clocking of timer modules.

    Regards,

    Stan