DS1864 Maxim Integrated Products, DS1864 Datasheet - Page 4

• Manufacturer Part Number: DS1864
• Description: SFP Laser Controller and Diagnostic IC
• Manufacturer: Maxim Integrated Products

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SFP Laser Controller and
Diagnostic IC
DIGITAL THERMOMETER CHARACTERISTICS
(V
AC ELECTRICAL CHARACTERISTICS
(V
4
Thermometer Error
Update Rate
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)
Recovery from Normal Disable
(to DACs Set Values)
Recovery After Power-Up (to
DACs Set Values)
Shutdown Response Time (to
DACs Off-State Current)
Recovery from Safety Fault
Shutdown (to DACs Set Values)
Fault Reset Time (to TX-F = 0)
Fault Reset Time (to TX-F = 0)
Fault Assert Time (to TX-F = 1)
LOS Assert Time
LOS Deassert Time
CC
CC
_____________________________________________________________________
= 2.97V to 5.5V, T
= 2.97V to 5.5V, T
PARAMETER
PARAMETER
A
A
= -40°C to +95°C.)
= -40°C to +95°C.)
2, 3, and 6
t
t
Figures 1,
SYMBOL
SYMBOL
t
Figures 6
INIT_DACs
LOSS_OFF
Figure 4
Figure 4
Figure 9
Figure 5
Figure 2
Figure 5
LOSS_ON
Figure 8
Figure 8
and 10
t
t
t
t
t
t
FAULT
INITR1
INITR2
FAULT
T
INITSF
frame
t
t
OFF
ERR
ON
-40°C to +95°C
(Notes 10, 17)
Dual range disabled
Dual range enabled
From
TX-D
(Notes 11, 17)
From
TX-D
(Notes 12, 17)
From
V
(Notes 11, 17)
I
or I
I
(Notes 11, 17)
From
TX-D
(Notes 11, 17)
From
TX-D
From
V
I
or I
I
(Note 11)
RSSI < Trip
(Note 12)
RSSI > Trip
(Note 12)
BMD
BMD
BMD
BMD
CC
CC
BIAS
BIAS
= 2.97V
= 2.97V
> TripHi
< TripLo
> TripHi
< TripLo
> Trip
> Trip
CONDITIONS
CONDITIONS
MIN
MIN
100
100
-3
TYP
TYP
57
67
MAX
MAX
100
200
200
0.8
+3
70
80
50
50
50
50
50
5
UNITS
UNITS
ms
ms
ms
ms
ms
ms
°C
µs
µs
µs
µs
µs