DS32EL0421: Recommendation power up sequence

Nao

Part Number: DS32EL0421
Other Parts Discussed in Thread: DS32EL0124

Hi, E2E members

Our customer is evaluationing to DS32EL0421 and DS32EL0124.
They understand power up sequence of stand-alone but they have some questions about power up sequence of the between two devices.

1. Is there recomend the sequence of 2.5V power supply?

Ex: We need that the 2.5V power supply of DS32EL0421 is powered up first. etc...

2. Is there recomend the sequence of 3.3V power supply?

Regards,
Nao

over 7 years ago

0 Yaser Ibrahim over 7 years ago

TI__Genius 10250 points

Hello Nao,

We will look into this and get back to you.

Regards,
Yaser

0 Nao over 7 years ago in reply to Yaser Ibrahim

Genius 4905 points

Hi, Yaser-san

Is there any update?
I hope to hear from you.

Regards,
Nao

0 Yaser Ibrahim over 7 years ago in reply to Nao

TI__Genius 10250 points

Hi Nao-san,

Sorry for the delay in responding. There is no requirement for power up sequence between the 2 devices. I also don't see any specific advantage to powering one of the 2 devices before the other. If convenient to do so, you can power on the serializer first (3.3V then 2.5V) and then power on the deserializer (3.3V first, then 2.5V).

Regards,
Yaser

0 Nao over 7 years ago in reply to Yaser Ibrahim

Genius 4905 points

Hi, Yaser-san

Thank you for your reply.

Regards,
Nao

Interface

Interface forum

DS32EL0421: Recommendation power up sequence