MAX3867 Ver la hoja de datos (PDF) - Maxim Integrated
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MAX3867 Datasheet PDF : 12 Pages
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+3.3V, 2.5Gbps SDH/SONET Laser Driver
with Automatic Power Control
Typical Operating Characteristics
(VCC = +3.3V, load as shown in Figure 2, TA = +25°C, unless otherwise noted.)
EYE DIAGRAM
(2.488Gbps, 1300nm FP LASER,
1.87GHz FILTER, 48-TQFP)
50ps/div
TYPICAL DISTRIBUTION OF FALL TIME
60
50
48-TQFP
IMOD = 30mA
40
30
20
MEAN = 88ps
σ = 3.0ps
10
0
80 84 88 92 96 100
FALL TIME (ps)
DISTRIBUTION OF FALL TIME
(WORST-CASE CONDITIONS)
40
48-TQFP
35
IMOD = 30mA
VCC = +3.14V
30
TA = +85°C
25
20
15
MEAN = 111.6ps
10
σ = 2.9ps
5
0
106 108 110 112 114 116 118 120 122
FALL TIME (ps)
26mV
/div
120
100
80
60
40
20
0
1
ELECTRICAL EYE DIAGRAM
ELECTRICAL EYE DIAGRAM
RANDOM JITTER vs. IMOD
0.022
PATTERN = 213 - 1 + 80 CID
IMOD = 30mA
48-TQFP
55mV
/div
PATTERN = 213 - 1 + 80 CID
IMOD = 60mA
48-TQFP
0.020
0.018
0.016
0.014
50ps/div
50ps/div
0.012
JITTER BW = 12kHz to 20MHz
1-0 PATTERN
0.010
4
11 18 25 32 39 46 53 60
IMOD (mA)
IBIASMAX vs. RBIASMAX
10
100 300
RBIASMAX (kΩ)
100
90
80
70
60
50
40
30
20
10
0
1
IMOD vs. RMODSET
10
100
RMODSET (kΩ)
IMD vs. RAPCSET
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.1
1
10
100
RAPCSET (kΩ)
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