Datasheet

+3.3V, 622Mbps SDH/SONET
Laser Driver with Current Monitors and APC
2 Maxim Integrated
MAX3669
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +3.14V to +5.5V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= +3.3V, T
A
= +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Supply Voltage, V
CC
.............................................-0.5V to +7.0V
Current into BIAS ............................................-20mA to +150mA
Current into OUT+, OUT- ............................... -20mA to +100mA
Current into MD....................................................-5mA to +5mA
Voltage at DATA+, DATA-, ENABLE,
FAIL, BIASMON, MODMON..................-0.5V to (V
CC
+ 0.5V)
Voltage at OUT+, OUT-.............................+1.5V to (V
CC
+ 1.5V)
Voltage at MODSET, APCSET, BIASMAX, CAPC... -0.5V to +3.0V
Voltage at BIAS .........................................+1.0V to (V
CC
+ 0.5V)
Continuous Power Dissipation (T
A
= +85°C)
TQFN (derate 20.8mW/°C above +85°C) .................1354mW
TQFP (derate 14.3mW/°C above +85°C)....................929mW
Operating Junction Temperature Range...........-55°C to +150°C
Storage Temperature Range ............................ -65°C to +165°C
Lead Temperature (soldering, 10s) .................................+300°C
MODMON to I
MOD
Gain A
MOD
29 mA/mAI
MOD
/I
MODMON
BIASMON to I
BIAS
Gain A
BIAS
38 mA/mAI
BIAS
/I
BIASMON
35I
MD
= 18µA (Note 4)
I
MD
= 1mA
815I
BIAS
= 1mA
I
BIAS
= 80mA
PARAMETER SYMBOL MIN TYP MAX UNITS
Common-Mode Input Voltage V
ICM
V
CC
-V
CC
-V
CC
-
1.49 1.32 V
ID
/4
V
Differential Input Voltage V
ID
200 1600 mV
P-P
Bias Current Absolute Accuracy -15 +15 %
Bias Current Stability
255
ppm/°C
DATA+, DATA- Input Current I
IN
-1 +10 µA
Monitor Diode Current Stability
-480 -50 +480
ppm/°C
Monitor Diode Current
Absolute Accuracy
-15 +15 %
DC Monitor Diode Current I
MD
18 1000 µA
Bias Current Range
Supply Current 40 60 mA
I
BIAS
180mA
Bias Off Current 100 µA
Monitor Diode Input Voltage
(MD Pin)
V
MD
0.8 V
TTL Input High Voltage V
IH
2 V
TTL Input Low Voltage V
IL
0.8 V
TTL Output High Voltage (FAIL)
V
OH
2.4 V
CC
- 0.3 V
CC
V
TTL Output Low Voltage (FAIL)
V
OL
0.1 0.44 V
CONDITIONS
PECL compatible
Figure 1
APC open loop
APC open loop
(Note 3)
Sourcing 50µA
Sinking 100µA
(Note 1)
V
BIAS
= V
CC
- 1.6V
ENABLE = low (Note 2)