AFE4400 / Crystal oscillator start-up time

K.Yaita

Other Parts Discussed in Thread: AFE4400

Hi Team,

I would like to ask about "Crystal oscillator start-up time".
Could you tell me what is the starting point of the time?
Is there any timing chart for it?

Best Regards,
Yaita / Japan disty

over 9 years ago

0 Praveen Aroul over 9 years ago

TI__Mastermind 49906 points

Hello Yaita-san,

The oscillator start-up time is from the rising edge of RESETZ in Figure 3 or 4 of AFE4400 datasheet.

0 K.Yaita over 9 years ago in reply to Praveen Aroul

Guru 29720 points

Hi Praveen-san,

Thank you for your support!
I understood.

Best Regards,
Yaita

0 K.Yaita over 9 years ago in reply to K.Yaita

Guru 29720 points

Hi Praveen-san,

I would like to confirm just in case.
Does "the rising edge of RESETZ" correspond to ②(blue)?

I would also like to confirm if "Crystal start-up time" indicates the time from "the rising edge of RESETZ" to "CLKOUT output".

Best Regards,
Yaita

Crystal oscillator start-up time

0 Praveen Aroul over 9 years ago in reply to K.Yaita

TI__Mastermind 49906 points

Hello Yaita-san,

Yes I was referring to the hardware reset issued by the host processor (edge #2) and not the rising edge on the resetz pin based on the pull-up resistor after power-up (edge #1).

0 K.Yaita over 9 years ago in reply to Praveen Aroul

Guru 29720 points

Hi Praveen-san,

Thank you for your continuous support.
Could you also comment about the following?

>I would also like to confirm if "Crystal start-up time" indicates the time from "the rising edge of RESETZ" to "CLKOUT(30 pin) output".

Best Regards,
Yaita

0 Praveen Aroul over 9 years ago in reply to K.Yaita

TI__Mastermind 49906 points

Yes.

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AFE4400 / Crystal oscillator start-up time

Crystal oscillator start-up time