Typical operating characteristics – Rainbow Electronics MAX3738 User Manual
Page 4
MAX3738
1Gbps to 2.7Gbps SFF/SFP Laser Driver with
Extinction Ratio Control
4
_______________________________________________________________________________________
Typical Operating Characteristics
(V
CC
= +3.3V, C
APC
= 0.01µF, I
BIAS
= 20mA, I
MOD
= 30mA, T
A
= +25°C, unless otherwise noted.)
OPTICAL EYE DIAGRAM
(2.7Gbps, 2
7
- 1 PRBS, 2.3GHz FILTER)
MAX3738 toc01
54ps/div
1310nm FP LASER
r
e
= 8.2dB
OPTICAL EYE DIAGRAM
(1.25Gbps, 2
7
- 1 PRBS, 940MHz FILTER)
MAX3738 toc02
116ps/div
1310nm FP LASER
r
e
= 8.2dB
ELECTRICAL EYE DIAGRAM
(I
MOD
= 30mA, 2.7Gbps, 2
7
- 1 PRBS)
MAX3738 toc03
52ps/div
75mV/div
1pF BETWEEN OUT+
AND OUT-
SUPPLY CURRENT (I
CC
) vs. TEMPERATURE
(EXCLUDES BIAS AND MODULATION CURRENTS)
MAX3738 toc04
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
80
70
60
50
40
30
20
10
0
-10
-20
-30
35
40
45
50
55
60
30
-40
90
3.63V
2.97V
3.3V
BIAS-CURRENT MONITOR RATIO
vs. TEMPERATURE
MAX3738 toc05
TEMPERATURE (°C)
I
BIAS
/I
BC_MON
(mA/mA)
80
70
50 60
-10 0 10 20 30 40
-30 -20
72
74
76
78
80
82
84
86
88
90
70
-40
90
PHOTOCURRENT MONITOR RATIO
vs. TEMPERATURE
MAX3738 toc06
TEMPERATURE (°C)
I
MD
/I
PC_MON
(mA/mA)
80
70
50 60
-10 0 10 20 30 40
-30 -20
0.85
0.90
0.95
1.00
1.05
1.10
1.15
1.20
0.80
-40
90
MODULATION CURRENT vs. R
MODSET
MAX3738 toc07
R
MODSET
(kΩ)
I
MOD
(mA)
10
10
20
30
40
50
60
70
80
90
0
1
100
PHOTODIODE CURRENT vs. R
APCSET
MAX3738 toc08
R
APCSET
(kΩ)
I
MD
(mA)
10
1
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0
0.1
100
DETERMINISTIC JITTER
vs. MODULATION CURRENT
MAX3738 toc09
I
MOD
(mA)
DJ (ps
P-P
)
80
70
50
60
20
30
40
10
5
10
15
20
25
30
35
40
45
50
0
0
90
2.7Gbps