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TUSB2036 6-MHz external oscillator source when MODE=low

Kazuhiko Ogawa
Intellectual 985 points
Other Parts Discussed in Thread: TUSB2036

Hallo,
Can the TUSB2036 use 6-MHz external oscillator source when MODE is low?
When MODE is low, the TUSB2036 is internal APLL mode and uses 6-MHz crystal between XTAL1 and XTAL2 as the fundamental frequency.
Instead of the crystal, when MODE is low, can 6-MHz external oscillator source is used inputting to the XTAL1 and leaving the XTAL2 open?

Best Regards,
Kazu Ogawa

  • 0
    TI__Mastermind 18655 points

    Hello Kazu,

    When the MODE pin is low the hub can use any device that generates a 6-MHz clock. Although, if low-power suspend mode is desired, a passive crystal or resonator must be used since it depends on disabling the clock.
    If a 6-MHz external oscillator is used, by connecting its output to the XTAL1 terminal and leaving the XTAL2 terminal open, it must be stopped at logic low whenever SUSPND is high and its output level can not exceed 3.6 V.

    Regards.