MAX3646 Maxim Integrated Products, MAX3646 Datasheet - Page 4

• Manufacturer Part Number: MAX3646
• Description: 155Mbps to 622Mbps Sff/sfp Laser Driver
• Manufacturer: Maxim Integrated Products

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155Mbps to 622Mbps SFF/SFP
Laser Driver with Extinction Ratio Control
(V
4
CC
_______________________________________________________________________________________
(EXCLUDES BIAS AND MODULATION CURRENTS)
90
80
70
60
50
40
30
20
10
60
55
50
45
40
35
30
0
= +3.3V, C
(622.08Mbps, 2
SUPPLY CURRENT (I
-40
1
MODULATION CURRENT vs. R
-30
-20
OPTICAL EYE DIAGRAM
-10
APC
3.3V
0
TEMPERATURE (°C)
7
R
10
- 1 PRBS, 467MHz FILTER)
MODSET
3.63V
= 0.01µF, I
270ps/div
20
CC
10
30
) vs. TEMPERATURE
(kΩ)
40
1310nm FP LASER
50
2.97V
BIAS
60
r
MODSET
MAX3646 toc01
e
= 8.2dB
70
= 20mA, I
80
100
90
MOD
1.4
1.2
1.0
0.8
0.6
0.4
0.2
90
88
86
84
82
80
78
76
74
72
70
0
= 30mA, T
-40
(155Mbps, 2
0.1
-30 -20
PHOTODIODE CURRENT vs. R
BIAS-CURRENT MONITOR RATIO
OPTICAL EYE DIAGRAM
-10 0 10 20 30 40
vs. TEMPERATURE
A
7
TEMPERATURE (°C)
1
= +25°C, unless otherwise noted.)
- 1 PRBS, 117MHz FILTER)
R
APCSET
1ns/div
(kΩ)
Typical Operating Characteristics
1310nm FP LASER
10
50 60
r
e
APCSET
MAX3646 toc02
= 8.2dB
70
80
100
90
75mV/div
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
100
90
80
70
60
50
40
30
20
-40
(I
0
MOD
-30 -20
PHOTOCURRENT MONITOR RATIO
10
= 30mA, 622.08MHz, 2
DETERMINISTIC JITTER vs.
ELECTRICAL EYE DIAGRAM
MODULATION CURRENT
-10 0 10 20 30 40
20
vs. TEMPERATURE
TEMPERATURE (°C)
30
I
320ps/div
MOD
40
(mA)
2pF BETWEEN OUT+
50
60
50 60
AND OUT-
7
70
- 1 PRBS)
155mbps
MAX3646 toc03
70
80
80
90
90