DP83825I: Question for the sequence

Satoshi Yone

Part Number: DP83825I

Hi, Team,

I have a few question for the sequence.

-Please let me know about the rise/fall time of the power supply terminal VDDA3V3(Pin 6) and VDDIO(Pin 19) spec.
-Please let me know about the rise/fall sequence of VDDA3V3(Pin 6) and VDDIO(Pin 19).
-Please let me know about the strap pin configuration sequence. I means we want to know when the strap configuration is fixed.

Best Regards,
Satoshi Yone

over 6 years ago

0 Geet Modi over 6 years ago

TI__Mastermind 26320 points

Hi Satoshi-san,

1) I will get back on this.
2) No sequencing restriction. They shall be ramped with 50 ms
3) Strap Configuration are latched at 3 events:
a) At Power Up before device is out of reset
b) At HW Reset using RST_N pin
c) HW Reset using register configuration.

Regards,
Geet

0 Geet Modi over 6 years ago in reply to Geet Modi

TI__Mastermind 26320 points

Hi Satoshi-san,

For the first question, both AVDD and VDDIO shall ramp in time range of 500us and 40ms. No sequencing is needed between VDDIO and AVDD.

Regards,
Geet

0 Satoshi Yone over 6 years ago in reply to Geet Modi

TI__Expert 3600 points

Thanks!!!!

0 Geet Modi over 6 years ago in reply to Satoshi Yone

TI__Mastermind 26320 points

Hi,

I am closing this thread. Incase you need further assistance, kindly open new thread and provide reference to this thread.

Regards,
Geet

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DP83825I: Question for the sequence