User Manual

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DS1862

XFP Laser Control and Digital Diagnostic IC

10 ____________________________________________________________________

FETG

P-DOWN/RST

OCCURRENCE

OF FAULT

I

BIASSET

I

MODSET

t

RESET

t

INIT

RESET-DONE

Figure 5. Successful Recovery from Transient Safety Fault Condition Using P-DOWN/RST

Figure 6. Unsuccessful Recovery from Transient Safety Fault Condition

FETG

(FETG_POL = 1)

P-DOWN/RST

OCCURRENCE

OF FAULT

I

BIASSET

I

MODSET

t

RESET

t

FAULT

t

FAULT

RESET-DONE

Timing Diagrams (continued)