MAX3867
+3.3V, 2.5Gbps SDH/SONET Laser Driver
with Automatic Power Control
2 _______________________________________________________________________________________
I
MD
= 1mA
I
MD
= 18µA
90
ENABLE = low (Note 4)
APC open loop, I
BIAS
= 1mA
(Note 3)
900
(Note 2)
(Note 5)
Sourcing 50µA
(Note 6)
APC open loop, I
BIAS
= 100mA
APC open loop
Figure 1
PECL compatible
Sinking 100µA
CONDITIONS
%
-15 15
Monitor-Diode Bias Absolute
Accuracy
ppm/°C
-480 50 480
Monitor-Diode Bias Setpoint
Stability
µA
18 1000
I
MD
Monitor-Diode DC Current
Range
V
1.5
Monitor-Diode Reverse Bias
Voltage
V
0.1 0.44
TTL Output Low Voltage FAIL
µA
100
I
BIAS-OFF
Bias Off Current
mA
1 100
I
BIAS
mA
62 105
I
CC
Supply Current
Bias Current Range
V
2.4 V
CC
- 0.3 V
CC
TTL Output High Voltage FAIL
V
0.8
TTL Input Low Voltage
(ENABLE, LATCH)
V
2.0
TTL Input High Voltage
(ENABLE, LATCH)
µA
-1 10
I
IN
Clock and Data Input Current
ppm/°C
230
Bias-Current Stability
%
-15 15
(Note 5)Bias-Current Absolute Accuracy
mVp-p
200 1600
V
ID
Differential Input Voltage
V
V
CC
- V
CC
- V
CC
-
1.49 1.32 V
ID
/4
V
ICM
Common-Mode Input Voltage
UNITSMIN TYP MAXSYMBOLPARAMETER
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +3.14V to +5.5V, T
A
= -40°C to +85°C. Typical values are at V
CC
= +3.3V, I
MOD
= 30mA, I
BIAS
= 60mA, and T
A
= +25°C,
unless otherwise noted.) (Note 1)
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.
Note 1: Characteristics at -40°C guaranteed by design and characterization. Dice are tested at T
A
= +25°C only.
Note 2: Tested at R
MODSET
= 2.49kΩ, R
BIASMAX
= 1.69kΩ, excluding I
BIAS
and I
MOD
.
Note 3: Voltage on BIAS pin is (V
CC
- 1.6V).
Note 4: Both the bias and modulation currents will be switched off if any of the current set pins are grounded.
Note 5: Accuracy refers to part-to-part variation.
Note 6: Assuming that the laser to monitor-diode transfer function does not change with temperature.
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-, CLK+, CLK-,
ENABLE, LATCH, FAIL, SLWSTRT.........-0.5V to (V
CC
+ 0.5V)
Voltage at APCFILT, CAPC, MODSET,
BIASMAX, APCSET ...........................................-0.5V to +3.0V
Voltage at OUT+, OUT-.............................+1.5V to (V
CC
+ 1.5V)
Voltage at BIAS.........................................+1.0V to (V
CC
+ 0.5V)
Current into FAIL ...............................................-10mA to +30mA
Continuous Power Dissipation (T
A
= +85°C)
TQFP (derate 20.8mW/°C above +85°C)...................1354mW
Storage Temperature Range.............................-65°C to +165°C
Operating Junction Temperature Range...........-55°C to +150°C
Processing Temperature (die).........................................+400°C
Lead Temperature (soldering, 10sec).............................+300°C
ABSOLUTE MAXIMUM RATINGS
