Typical operating characteristics – Rainbow Electronics MAX3942 User Manual
Page 6
MAX3942
10Gbps Modulator Driver
6
_______________________________________________________________________________________
DIFFERENTIAL V
MOD
vs. V
MODSET
(Z
L
= 50
Ω ON OUT+ AND OUT-)
MAX3942 toc06
V
MODSET
(V)
DIFFERENTIAL V
MOD
(V
P-P
)
0.75
0.50
0.25
1
2
3
4
5
6
7
0
0
1.00
V
MODSET
IS RELATIVE TO V
EE
MAX3942 toc08
FREQUENCY (GHz)
IS
11
I (dB)
12
9
3
6
-35
-30
-25
-20
-15
-10
-5
0
-40
0
15
DIFFERENTIAL S
11
vs. FREQUENCY
(DEVICE POWERED)
Typical Operating Characteristics
(Typical values are at V
EE
= -5.2V, I
MOD
= 100mA, T
A
= +25°C, unless otherwise noted.)
10.7Gbps ELECTRICAL EYE DIAGRAM
(V
MOD
= 2V
P-P
DIFFERENTIAL, 2
31
- 1 PRBS)
MAX3942 toc01
16ps/div
10.7Gbps ELECTRICAL EYE DIAGRAM
(V
MOD
= 6V
P-P
DIFFERENTIAL, 2
31
- 1 PRBS)
MAX3942 toc02
16ps/div
SUPPLY CURRENT vs. TEMPERATURE
(50
Ω LOAD, EXCLUDES I
MOD
)
MAX3942 toc03
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
MAX3942 toc04
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
0
0.6
0.4
0.2
1.0
0.8
1.8
1.6
1.4
1.2
2.0
-50
-30
-10
10
30
50
70
90
PULSE-WIDTH DISTORTION
vs. TEMPERATURE
MAX3942 toc05
TEMPERATURE (
°C)
PULSE-WIDTH DISTORTION (ps)
DIFFERENTIAL S
22
vs. FREQUENCY
(DEVICE POWERED)
MAX3942 toc09
FREQUENCY (GHz)
|S
22
| (dB)
12
9
6
3
-27
-24
-21
-18
-15
-12
-9
-6
-3
0
-30
0
15
0
1
10
10k
POWER-SUPPLY NOISE REJECTION
vs. FREQUENCY
10
5
15
25
20
30
MAX3942 toc07
FREQUENCY (Hz)
PSNR (dB)
100
1k