DS90LV110AT: Unused output

na na78

Guru 16770 points

Part Number: DS90LV110AT
Other Parts Discussed in Thread: LMK00306,

Could it be left unused output open?

Please tell me if you see concern.

BestRegards

0 Ikechukwu Anyiam over 5 years ago

It'd be best to terminate unused outputs with a 100ohm differential resistor.

Regards,

I.K.

0 na na78 over 5 years ago in reply to Ikechukwu Anyiam

Guru 16770 points

Hi I.K.

Thank you for your reply.

I also see LMK00306.

It explains that any unused output pin should be left floating with a minimum copper length.

Should 100ohm termination be recommended for LMK00306's output?

BestRegards

0 Ikechukwu Anyiam over 5 years ago in reply to na na78

No, you should follow the datasheet's recommendation for that device and leave any unused outputs floating.

Regards,

I.K.

0 na na78 over 5 years ago in reply to Ikechukwu Anyiam

Guru 16770 points

Hi I.K.

Thank you for your reply.

Let me confirm followings.

DS90LV110AT -> Unused output should be terminated by 100ohm differential resistor.

LMK00306 -> Unused output should be floating.

Is it correct?

BestRegards

0 Ikechukwu Anyiam over 5 years ago in reply to na na78

Yes, that's correct.

Regards,

I.K.

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