Typical operating characteristics, Test circuits and timing diagrams (continued) – Rainbow Electronics MAX3941 User Manual
Page 6
MAX3941
10Gbps EAM Driver with Integrated
Bias Network
6
_______________________________________________________________________________________
Typical Operating Characteristics
(Typical values are at V
EE
= -5.2V, I
BIAS
= 30mA, I
MOD
= 100mA, T
A
= +25°C, unless otherwise noted.)
10Gbps ELECTRICAL EYE DIAGRAM
(V
MOD
= 1V
P-P
, 2
31
- 1 PRBS)
MAX3941 toc01
20ps/div
10Gbps ELECTRICAL EYE DIAGRAM
(V
MOD
= 3V
P-P
, 2
31
- 1 PRBS)
MAX3941 toc02
20ps/div
OC-192 OPTICAL EYE DIAGRAM
(OC-192 FILTER, 2
31
- 1 PRBS)
MAX3941 toc03
15ps/div
1
2
3
NOTE: BIAS AND MODULATION
SET AT OPTIMUM LEVELS FOR EAM.
Figure 5. Bias and Modulation Relationship to EAM Voltage
V
OUT
V
MOD
VOLTAGE
GND
BELOW USABLE RANGE
USABLE RANGE
V
EE
+ 1.9V
V
BIAS
Test Circuits and Timing Diagrams (continued)
SUPPLY CURRENT vs. TEMPERATURE
(50
Ω LOAD, EXCLUDES I
BIAS
, I
MOD
)
MAX3941 toc04
TEMPERATURE (
°C)
I
EE
(mA)
80
70
60
50
40
30
20
10
0
-10
-20
-30
110
120
130
140
150
160
170
100
-40
90
RETIMING ENABLED
RETIMING DISABLED
PULSE WIDTH vs. R
PWC
MAX3941 toc05
R
PWC-
(
Ω)
PULSE-WIDTH POSITIVE PULSE (ps)
250
500
1000 750
1500 1250
1750
760
770
780
790
800
810
820
830
840
850
750
2000
0
R
PWC+
(
Ω)
1750
1500
1000 1250
500 750
250
0
2000
MEASURED AT 1.25Gbps
WITH A 1010 PATTERN