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CC3100 - TCXO and low power modes

Enrico Migliore
Intellectual 690 points
Other Parts Discussed in Thread: CC3100

Hi,

I'm designing a board based on the CC3100 transceiver.

I'm going to use a TCXO instead of a quartz crystal (*).

The TCXO doesn't have the enable pin, therefore the CC3100 chip can't turn the TCXO off.

Question

What happens if I put, by software, the CC3100 chip into a low power mode and the TCXO remains operating?

Thanks,

Enrico Migliore

(*) I got my own reason.

  • 0
    Intellectual 690 points
    Hi,

    can anyone please answer my 2 questions on the CC3100 transceiver?


    Question 1
    Can I use a TCXO instead of a crystal?

    Question 2
    If I use a TCXO, what happens when I put to sleep the CC3100 transceiver and the TCXO remains operating?



    Best Regards,
    Enrico Migliore
  • 0 in reply to Enrico Migliore
    TI__Guru 58035 points

    Hello Enrico,

    We do support the TCXO configuration along with the TCXO_EN signal. Please refer to the datasheet for the the configuration to use TCXO and the specs required.

    If you don't want to use the TCXO_EN option you can keep the TCXO running while putting CC3100 to sleep. It would only be additional current that the TCXO would take.

    Regards,

    Dham