SFP Laser Controller and
Diagnostic IC
Timing Diagrams (continued)
TX-F
TX-D
DAC0, DAC1
t OFF
Figure 4. TX-D Timing During Normal Operation
OCCURRENCE
OF FAULT
TX-F
TX-D
DAC0, DAC1
t FAULT
Figure 5. Detection of Transmitter Safety Fault Operation
OCCURRENCE
OF FAULT
TX-F
TX-D
DAC0, DAC1
NOTE: TX-F IS ALSO DEPENDENT ON INTX-F.
Figure 6. Successful Recovery from Transient Safety Fault Condition
t RESET
t ON
t INIT
8
_____________________________________________________________________
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