User Manual

DS1862
XFP Laser Control and Digital Diagnostic IC
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DC ELECTRICAL CHARACTERISTICS
(V
CC3
= +2.9V to +5.5V, V
CC2
= +1.6V to +3.6V, T
A
= -40°C to +100°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
Supply Current I
CC3
P-DOWN/RST = 1 3 5 mA
High-Level Output Voltage
(FETG)
V
OH
I
OH
(max) = -2mA
V
CC3
-
0.5
V
Low-Level Output Voltage
(MOD-NR, INTERRUPT, SDA,
and FETG)
V
OL
I
OL
(max) = 3mA 0 0.4 V
Resistor (Pullup) R
PU
91215kΩ
I/O Capacitance C
I/O
(Note 4) 10 pF
Leakage Current I
L
-10
+10
µA
Leakage Current (SCL, SDA) I
L
-10
+10
µA
Digital Power-On Reset POD 1.0 2.2 V
Analog Power-On Reset POA 2.0 2.6 V
DC ELECTRICAL CHARACTERISTICS—INTERFACE SIGNALS TO SIGNAL CONDITIONERS
(V
CC2
= +1.6V to +3.6V, V
CC3
= +2.9V to +5.5V, T
A
= -40°C to +100°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
High-Level Input Voltage
(SC-RX-LOS, SC-RX-LOL,
and SC-TX-LOS)
V
IH
I
IH
(max) = 100µA
0.7 x
V
CC2
V
CC2
+
0.1
V
Low-Level Input Voltage
(SC-RX-LOS, SC-RX-LOL,
and SC-TX-LOS)
V
IL
I
IL
(max) = -100µA 0
0.3 x
V
CC2
V
V
OH
I
OH
(max) = -0.7mA
V
CC2
-
0.2
V
OH2
V
CC2
= 2.5V to 3.6V
I
OH
(max) = -2mA
V
CC2
-
0.4
High-Level Output Voltage
(EN1 and EN2)
V
OH3
V
CC2
= 1.6V
I
OH
(max) = -0.7mA
V
CC2
-
0.2
V
V
OL
I
OL
(max) = 0.7mA
0.20
Low-Level Output Voltage
(EN1, EN2, and RX-LOS)
V
OL2
V
CC2
= 2.5V to 3.6V
I
OL
(max) = 2mA
0.40
V
Leakage Current
(SC-RX-LOS, SC-RX-LOL
and SC-TX-LOS, RX-LOS)
I
L
-10
+10
µA