DS90LV047A Unused driver LVTTL input pins - float or pull-up/down?

Bryan Wallace

Prodigy 70 points

Other Parts Discussed in Thread: DS90LV047A

How should unused drivers on this device be terminated? Is it ok to leave the unused input pins (Din1-4) floating?

If they need to be connected, can they be connected to ground or do they need pullup/pulldown resistors?

Thanks!

over 9 years ago

0 Michael Lu (Santa Clara) over 9 years ago

TI__Mastermind 29655 points

Hi Bryan,

It is ok to leave the DS90LV047A input pins floating when they are not in use. They should then be left disconnected from the corresponding receiver LVDS inputs. Please see p.8 of the datasheet for more details about fail-safe conditions.

Regards,

Michael

Interface

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DS90LV047A Unused driver LVTTL input pins - float or pull-up/down?