Parts: LTC2852HMS#TRPBF

Hi


Concerned portion: Receiver
Receiver Input to Output delay is specified as 50 nsec(Typ.) to 70 nsec (Max).
This delay is specified over full temperature range (-40 to 125 deg.C.).
How about minimum delay?
If you can provide us the minimum delay excluding and including temperature flactuation, it is very helpful for us.

Concerned portion: Driver
Same question about driver portion.
Driver Input to Output delay is specified as 10 nsec(Typ.) to 50 nsec (Max).
How about minimum delay?

Background:

We would like to use two RS422 for synchronized two signals.
In order to specify timing error for them, we need RS422 propagation delay variation.

Regards,

Parents
  • +1
    •  Analog Employees 
    on Apr 22, 2019 7:04 AM

    Hi,

    Thanks for the query on LTC2852. We can not guarantee a low limit for the test, usually the lower temperatures procedure lower delays. From the  test results of several production lots at hot and cold, the minimum delay for receiver is around 40 nsec and for driver is 8 nsec as you could reference to, but you might receive parts that have lower delays. The specs listed in the datasheet are based on the specific test conditions, so the parameters would vary due to different condition.

    Regards,

    Neil

Reply
  • +1
    •  Analog Employees 
    on Apr 22, 2019 7:04 AM

    Hi,

    Thanks for the query on LTC2852. We can not guarantee a low limit for the test, usually the lower temperatures procedure lower delays. From the  test results of several production lots at hot and cold, the minimum delay for receiver is around 40 nsec and for driver is 8 nsec as you could reference to, but you might receive parts that have lower delays. The specs listed in the datasheet are based on the specific test conditions, so the parameters would vary due to different condition.

    Regards,

    Neil

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