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M
Single +5V, Fully Integrated,
155Mbps Laser Diode Driver
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.
T
A
= +25°C
(Note 1)
CONDITIONS
mA
mA
V
V
V
12
I
REF
I
VCC
V
IH
V
IL
V
IH
Available Reference Current
Supply Current
PECL Input High
PECL Input Low
TTL High Input
V
3.15
3.3
3.45
V
REF
mA
60
I
BIAS
Range of Programmable Laser
Bias Current
Reference Voltage
V
V
V
IL
V
OH
TTL Low Input
FAILOUT Output High
50
V
CC
- 1.165
V
CC
- 1.475
2
0.8
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
Minimum differential input swing is 1100mVp-p
(Note 3)
CONDITIONS
mA
30
I
MOD
Range of Programmable
Modulation Current
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
I
BIAS
= 25mA, I
MOD
= 12mA, 4ns unit interval;
measured from 10% to 90%
ns
1
t
R
, t
F
Modulation-Current Rise and
Fall Time
I
MOD
= 12mA, T
A
= +25°C
%
±15
OS
Aberrations, Rising and Falling
Edge
I
BIAS
= 25mA, I
MOD
= 12mA, 8ns period
ps
100
PWD
Modulation-Current Pulse-
Width Distortion
ABSOLUTE MAXIMUM RATINGS
Terminal Voltage (with respect to GND)
Supply Voltages (V
CC
A, V
CC
B).............................-0.3V to +6V
VIN+, VIN-, FAILOUT ................................................0V to V
CC
OUT+, OUT-, IBIASOUT......................................+1.5V to V
CC
ENB+, ENB-......................V
CC
or +5.5V, whichever is smaller
Differential Input Voltage (
|
VIN+ - VIN-
|
).........................+3.8V
Input Current
IBIASOUT............................................................0mA to 75mA
OUT+, OUT-........................................................0mA to 40mA
IBIASSET........................................................0mA to 1.875mA
IMODSET...............................................................0mA to 2mA
IPIN, IPINSET, OSADJ...........................................0mA to 2mA
FAILOUT..............................................................0mA to 10mA
IBIASFB................................................................-2mA to 2mA
Output Current
VREF1, VREF2.....................................................0mA to 20mA
SLWSTRT ..............................................................0mA to 5mA
Continuous Power Dissipation (T
A
= +70°C)
SSOP (derate 8mW/°C above +70°C)..........................640mW
Operating Temperature Range...............................0°C to +70°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-55°C to +175°C
DC ELECTRICAL CHARACTERISTICS
(V
CC
= V
CC
A = V
CC
B = +4.75V to +5.25V, T
A
= 0°C to +70°C, unless otherwise noted. Typical values are at V
CC
= +5V and
T
A
= +25°C.)
AC ELECTRICAL CHARACTERISTICS
(V
CC
= V
CC
A = V
CC
B = +4.75V to +5.25V, R
LOAD
(at OUT+ and OUT-) = 25
connected to V
CC
, T
A
= 0°C to +70°C, unless other-
wise noted. Typical values are at V
CC
= +5V and T
A
= +25°C.) (Note 2)
Loaded with 2.7k
pull-up resistor to V
CC
Loaded with 2.7k
pull-up resistor to V
CC
V
0.5
V
OL
FAILOUT Output Low
4.5
Note 2:
AC characteristics are guaranteed by design and characterization.
Note 3:
An 1100mVp-p differential is equivalent to complementary 550mVp-p signals on VIN+ and VIN-.
Note 1:
I
VCC
= I
VCCA
+ I
VCCB
, I
BIAS
= 60mA, I
MOD
= 30mA, and I
PIN
= 140μA.