Datasheet

MAX3766
622Mbps LAN/WAN Laser Driver with
Automatic Power Control and Safety Shutdown
_______________________________________________________________________________________ 5
100
11k10 100 10k 100k
BIAS CURRENT vs. R
BIASMAX
(NO APC, OPEN-LOOP CONFIGURATION)
MAX3766-10
R
BIASMAX
(
Ω
)
I
BIAS
(mA)
1
10
10
0.001
-40 -20 0 20 40 60 80 100
MONITOR CURRENT vs. TEMPERATURE
0.01
MAX3766-11
AMBIENT TEMPERATURE (°C)
I
MD
(mA)
0.1
1
NOMINAL = 1mA
NOMINAL = 200
µ
A
NOMINAL = 20
µ
A
NOMINAL = 2
µ
A
100
260
240
220
200
180
160
140
120
DATA-DEPENDENT JITTER
vs. TEMPERATURE (CMD = 0.1µF)
MAX3766-12
AMBIENT TEMPERATURE (°C)
DDJ (ps)
-40 -20 0 20 40 60 80 100
2
13
PRBS PATTERN
72 CONSECUTIVE ZEROS
2
23
- 1 PRBS PATTERN
10µs/div
UNSUCCESSFUL STARTUP
MAX3766-13
V
ENABLE
V
MD
V
SAFETY
(τ = 30µs)
FAIL
DATA OUT (AC COUPLED)
5µs/div
100
µ
W/
div
ABRUPT SHUTDOWN
MAX3766-16
OPTICAL OUTPUT WITH DATA ON
OPTICAL OUTPUT WITH DATA OFF
50
µ
s/div
SUCCESSFUL STARTUP
MAX3766-14
V
ENABLE
V
MD
FAIL
V
SAFETY
(
τ
= 1500
µ
s)
DATA OUT (AC COUPLED)
5
µ
s/div
100
µ
W/
div
SMOOTH STARTUP
MAX3766-15
OPTICAL OUTPUT WITH DATA ON
OPTICAL OUTPUT WITH DATA OFF
2.00
2.80
2.60
2.40
2.20
3.20
3.00
3.40
-45 -5
20
-25 40
60
80 100
REFERENCE VOLTAGE
vs. TEMPERATURE
MAX3766-17
AMBIENT TEMPERATURE (°C)
VOLTAGE (V)
R
TC
= OPEN
V
REF1
V
REF2
Typical Operating Characteristics (continued)
(Typical Operating Characteristics are measured on the MAX3766 evaluation kit, V
CC
= +5.0V, T
A
= +25°C, unless otherwise noted.)