DS1864T 데이터 시트보기 (PDF) - Dallas Semiconductor -> Maxim Integrated
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DS1864T Datasheet PDF : 72 Pages
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SFP Laser Controller and
Diagnostic IC
DIGITAL THERMOMETER CHARACTERISTICS
(VCC = 2.97V to 5.5V, TA = -40°C to +95°C.)
PARAMETER
SYMBOL
CONDITIONS
Thermometer Error
TERR
-40°C to +95°C
(Notes 10, 17)
Update Rate
tframe
Dual range disabled
Dual range enabled
MIN TYP MAX UNITS
-3
+3
°C
57
70
ms
67
80
AC ELECTRICAL CHARACTERISTICS
(VCC = 2.97V to 5.5V, TA = -40°C to +95°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
SHUTDOWN AND FAULTS (SEE FAULT AND SHUTDOWN TIMING DIAGRAMS FIGURES 1 TO 10), FOR FAST ALARMS AND
SFP MANAGEMENT
TX-D (to DACs Off-State
Currents)
tOFF
Figure 4
From
TX-D
(Notes 11, 17)
5
µs
Recovery from Normal Disable
(to DACs Set Values)
tON
Figure 4
From
TX-D
(Notes 12, 17)
0.8
ms
Recovery After Power-Up (to
DACs Set Values)
tINIT_DACs
Figure 9
From
VCC = 2.97V
(Notes 11, 17)
100
ms
Shutdown Response Time (to
DACs Off-State Current)
tFAULT
Figure 5
IBMD > TripHi
or IBIAS > Trip
IBMD < TripLo
(Notes 11, 17)
50
µs
Recovery from Safety Fault
Shutdown (to DACs Set Values)
Fault Reset Time (to TX-F = 0)
Fault Reset Time (to TX-F = 0)
tINITSF
Figures 6
and 10
From
TX-D
(Notes 11, 17)
tINITR1 From
Figure 2 TX-D
tINITR2
Figures 1,
2, 3, and 6
From
VCC = 2.97V
50
ms
100
200
ms
100
200
ms
Fault Assert Time (to TX-F = 1)
LOS Assert Time
LOS Deassert Time
tFAULT
Figure 5
IBMD > TripHi
or IBIAS > Trip
IBMD < TripLo
(Note 11)
tLOSS_ON RSSI < Trip
Figure 8 (Note 12)
tLOSS_OFF RSSI > Trip
Figure 8 (Note 12)
50
µs
50
µs
50
µs
4 _____________________________________________________________________
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