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AWR1843: Power supply sequence and Xtal start up time

Hitoshi Sugawara

Mastermind 19980 points

Part Number: AWR1843

Hi Experts,

The power supply sequencing is shown in the datasheet.
1) Are there any requirements for order, rising time, slew rate, etc?
2) Xtal start time spec. Is it OK if Xtal starts up and settled within 8ms?

Thank you for your check.
Best regards,
Hitoshi

over 4 years ago

0 Cesar over 4 years ago

TI__Guru*** 149044 points

Hi,

The HW team will review your question and will be able to get back to you tomorrow

Thank you

Cesar

+1 aozer over 4 years ago

TI__Mastermind 30715 points

Hello,

1. There are no requirements for order or rise time. The only requirement is that all of the supplies should be stable before NRESET is released.

2. Yes, the XTAL MUST be started and settled within 8ms. It is a problem if it takes longer than 8ms, but less time is not a problem.

Regards,

Adrian

0 Hitoshi Sugawara over 4 years ago in reply to aozer

TI__Mastermind 19980 points

Hi Adrian,

Thank you so much for your prompt reply.
Understood and will follow the guideline.

Best regards,
Hitoshi