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Watchdog timeout of ADM696

Question asked by Kou on Nov 11, 2013
Latest reply on Nov 11, 2013 by Kou

Dear Sir/Madam,

 

We are evaluating ADM696ARZ for PCIe board.

 

We have questions about Reset Pulse Width and Watchdog Timeout.

 

We would like to use this device at Vcc=3.3V and internal osc.(OSC SEL and OSC IN is both floating).

However,our result is below.

  Vcc        Watchdog timeout(s)                 Reset Active Period(s)

-----------------------------------------------------------------------------------------------------------------------------

5V               1.96                                             59.6msec  -> within specication

4V               3.48                                           114msec     -> out of specication?

3.3V            7.64                                           238msec    -> out of specication?

 

Is our evaluation result correct?.

If correct,do you have idea that how to use this device at Vcc=3.3V.

 

Thank you.

 

Sincerely yours,

Kou

ADM696ARZ.png

 

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