#10999 NORM Not Tri: XO-1.75 A3 idt1338 chip loses oscillator over laptop power cycle

Zarro Boogs per Child bugtracker at laptop.org
Fri Jun 17 00:37:44 EDT 2011


#10999: XO-1.75 A3 idt1338 chip loses oscillator over laptop power cycle
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           Reporter:  Quozl     |       Owner:  wad        
               Type:  defect    |      Status:  assigned   
           Priority:  normal    |   Milestone:  Not Triaged
          Component:  hardware  |     Version:  1.75-A2    
         Resolution:            |    Keywords:             
        Next_action:  diagnose  |    Verified:  0          
Deployment_affected:            |   Blockedby:             
           Blocking:            |  
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Comment(by wad):

 And bingo, the data sheet implies that the Vdd fall time on power off must
 be less than 1V/mS when passing through the power fail region (1.7 to
 1.4V), using the little noticed tVCCF parameter.

 I'll propose a quick fix and test it out tmw.

-- 
Ticket URL: <http://dev.laptop.org/ticket/10999#comment:12>
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