Typical operating characteristics – Rainbow Electronics MAX3795 User Manual
Page 5
MAX3795
1Gbps to 4.25Gbps Multirate VCSEL Driver
with Diagnostic Monitors
_______________________________________________________________________________________
5
ELECTRICAL EYE DIAGRAM
MAX3795 toc01
40ps/div
75mV/div
4.25Gbps, K28.5, 10mA MODULATION,
PEAKING OFF
ELECTRICAL EYE DIAGRAM
MAX3795 toc02
152ps/div
75mV/div
1Gbps, K28.5, 10mA MODULATION,
R
PEAKSET
= 1.4k
Ω
OPTICAL EYE DIAGRAM
MAX3795 toc03
135ps/div
1
2
3
1Gbps, K28.5, -3dBm, 850nm VCSEL
ADVANCED OPTICAL COMPONENTS,
HFE4191-541
OPTICAL EYE DIAGRAM
MAX3795 toc04
34ps/div
4.25Gbps, K28.5, -7dBm, 850nm VCSEL,
ADVANCED OPTICAL COMPONENTS
HFE4191-541
OPTICAL EYE DIAGRAM
MAX3795 toc05
50ps/div
3.125Gbps, K28.5, -7dBm, 850nm VCSEL,
ADVANCED OPTICAL COMPONENTS
HFE4191-541
I
BIASMON
vs. BIAS CURRENT
MAX3795 toc06
BIAS CURRENT (mA)
I
BIASMON
(mA)
12
8
4
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0
0
16
DETERMINISTIC JITTER
vs. MODULATION CURRENT
MAX3795 toc07
MODULATION CURRENT
(mA
P-P
)
DETERMINISTIC JITTER (ps
P-P
)
5
10
15
20
25
30
35
40
0
0
2
4
6
8
10
12 14
16 18 20
RANDOM JITTER
vs. MODULATION CURRENT
MAX3795 toc08
MODULATION CURRENT
(mA
P-P
)
RANDOM JITTER (ps
RMS
)
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
0
2
4
6
8
10
12 14
16 18 20
I
BIAS
= 5mA
TRANSITION TIME
vs. MODULATION CURRENT
MAX3795 toc09
MODULATION CURRENT
(mA)
TRANSITION TIME (ps)
10
20
30
40
50
60
70
0
2
4
6
8
10
12
14
MEASURED FROM 20%
FALL TIME
RISE TIME
Typical Operating Characteristics
(V
CC
= +3.3V, R
TC
= 0
Ω, PEAKSET open, measured electrically with a 50Ω load AC-coupled to OUT+, T
A
= +25
°C, unless otherwise
noted.)