DS90CR286A: RSKM at f=56MHz (DS90CR286A, DS90CR288A)

KAEDE KUDO

Expert 2700 points

Part Number: DS90CR286A
Other Parts Discussed in Thread: DS90CR288A, , DS90CR285

Hello,

My customer has a question about DS90CR286A and DS90CR288A.

Please Could you tell me RSKM value at f=56MHz.

Or could you tell me which dominance is DS90CR286A or DS90CR288A at f=56MHz?

Best Regards,
Kaede Kudo

over 7 years ago

0 Ikechukwu Anyiam over 7 years ago

TI__Mastermind 35130 points

Hi Kaede-san,

You can reference section 4 of this app note for how to calculate RSKM: www.ti.com/.../snla249.pdf

Regards,
I.K.

0 KAEDE KUDO over 7 years ago in reply to Ikechukwu Anyiam

Expert 2700 points

Hi I.K-san,

Thank you for your answer.
I read your attached app note.
So, I have a question.

[Q]

I want to know RSKM at f=56MHz.

Could you tell me Rspos and Tppos at f=56MHz?

It is not written in D/S.

<devices>
- DS90CR285
- DS90CR286A
- DS90CR288A

Best Regards,
Kaede Kudo

0 KAEDE KUDO over 7 years ago in reply to KAEDE KUDO

Expert 2700 points

Hello I.K -san,

Do you have any update?
My customer needs this Information to determine the length of cable.

Best Regards,
Kaede Kudo

0 Ikechukwu Anyiam over 7 years ago in reply to KAEDE KUDO

TI__Mastermind 35130 points

Hi Kaede-san,

Sorry but we don't have that data at specific frequencies. As the application note states, to determine the minimum RSKM value, the Tx pulse positions and Rx strobe positions for the maximum operating frequency should be used.

Regards,
I.K.

0 KAEDE KUDO over 7 years ago in reply to Ikechukwu Anyiam

Expert 2700 points

Hi I.K-san,

Thank you for your comment!
I understood it.
I'll tell my customer it.

Best Regards,
Kaede Kudo

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DS90CR286A: RSKM at f=56MHz (DS90CR286A, DS90CR288A)