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DS90UB928 Auto clock on loss of lock

Masatoshi Oguri
Expert 4780 points

Hello,

DS90UB928 will out put internal clock on loss of clock. The output seems configurable by 0x24 register, but in some points it is inconsistent.

1. Is setting of 0x03[1]=1 really necessary?

It looks irrelevant and pointing a wrong register.

2. Two options for the same frequency?

Both two options are 33MHz?

Oguri

(TIJ automotive FAE)

0x24

0x03[1]

  • 0
    TI__Expert 4780 points
    Hi,

    Can DS90UB928 really enable Auto Clock?
    The device outputs internal OSC clock when bit 5, 6, 7 of 0x02h configured 1. But when LOCK established, it stops CLKOUT. I could not find any configuration that the device automatically transitions to OSC clock.
    Please let me know how to configure the device to enable Auto Clock.
    Thank you.

    Oguri (TIJ automotive FAE)