Manual
MAX3737
Multirate Laser Driver with Extinction
Ratio Control
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= +2.97V to +3.63V, T
A
= -40°C to +85°C. Typical values are at V
CC
= +3.3V, I
BIAS
= 60mA, I
MOD
= 60mA, T
A
= +25°C, unless
otherwise noted.) (Notes 1, 2)
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 +6.0V
IN+, IN-, TX_DISABLE, TX_FAULT, SHUTDOWN,
MC_MON, BC_MON, PC_MON, VBS, VMD,
APCFILT1, APCFILT2, MD, TH_TEMP,
MODTCOMP, MODBCOMP, MODSET, and
APCSET Voltage .......................................-0.5V to V
CC
+ 0.5V
OUT+, OUT-, BIAS Current.............................-20mA to +150mA
Continuous Power Dissipation (T
A
= +85°C)
32-Pin QFN (derate 21.2mW/°C above +85°C) ...............1.3W
Operating Junction Temperature Range...........-55°C to +150°C
Storage Temperature Range .............................-55°C to +150°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
POWER SUPPLY
Supply Current I
CC
(Note 3) 47 60 mA
Power-Supply Noise Rejection PSNR f ≤ 1MHz, 100mV
P-P
(Notes 4, 6) 33 dB
I/O SPECIFICATIONS
Differential Input Swing V
ID
DC-coupled, Figure 1 0.2 2.4 V
P-P
Common-Mode Input V
CM
1.7
V
CC
-
V
ID
/4
V
LASER BIAS
Bias-Current Setting Range 1 100 mA
Bias Off Current TX_DISABLE = high 0.1 mA
Bias-Current Monitor Ratio I
BIAS
/I
BC_MON
68 82 95 mA/mA
LASER MODULATION
Modulation-Current Setting
Range
I
MOD
(Note 5) 5 85 mA
5mA ≤ I
MOD
≤ 10mA 71 80
Output Edge Speed
20% to 80%
(Notes 6, 7)
10mA < I
MOD
≤ 85mA 52 80
ps
Output Overshoot/Undershoot (Note 7) ±6 %
Random Jitter (Notes 6, 7) 0.65 1.3 ps
5mA ≤ I
MOD
≤ 10mA 25.6 40
2.7Gbps
10mA < I
MOD
≤ 85mA 16 40
5mA ≤ I
MOD
≤ 10mA 32 41
1.25Gbps
10mA < I
MOD
≤ 85mA 15 41
5mA ≤ I
MOD
≤ 10mA 39 46
622Mbps
10mA < I
MOD
≤ 85mA 21 46
5mA ≤ I
MOD
≤ 10mA 65 100
Deterministic Jitter (Notes 6, 8)
155Mbps
10mA < I
MOD
≤ 85mA 46 70
ps
P-P
Modulation-Current Temperature
Stability
(Note 6) ±150 ±480 ppm/°C