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MAX3667 Datasheet(PDF) 5 Page - Maxim Integrated Products

Part No. MAX3667
Description  3.3V, 622Mbps SDH/SONET Laser Driver with Automatic Power Control
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
Logo MAXIM - Maxim Integrated Products

MAX3667 Datasheet(HTML) 5 Page - Maxim Integrated Products

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+3.3V, 622Mbps SDH/SONET Laser Driver
with Automatic Power Control
_______________________________________________________________________________________
5
10
1k
100
100k
10k
100G
10G
1G
1pF
100pF
10nF
1
µF
100
µF
APC BANDWIDTH vs. CCOMP
(VARYING MONITOR-TO-LASER
CURRENT GAIN)
CCOMP
MEASURED RESULTS
GAIN = 90
GAIN = 30
GAIN = 60
SIMULATED
RESULTS
____________________________Typical Operating Characteristics (continued)
(TA = +25°C, VCC = +3.3V, unless otherwise noted.)
80
100
90
120
110
130
160
140
150
-40
-15
10
35
60
85
SUPPLY CURRENT vs. TEMPERATURE
TEMPERATURE (°C)
EXCLUDING IBIAS
RMODSET = RBIASSET = 2kΩ
10
Ω LOAD
VCC = +5.0V
VCC = +3.3V
______________________________________________________________Pin Description
NAME
FUNCTION
1, 2, 23, 24
VCC
Supply Voltage Input
3, 6, 8, 13, 14,
15, 18, 20, 22
GND
Ground
PIN
4
IN+
Positive PECL-Compatible Input
5
IN-
Negative PECL-Compatible Input
11
APC
Feedback Current for Closed-Loop Laser-Diode Bias Control
10
MODSET
Adjustment for Laser-Diode Modulation Current
9, 26, 28, 31
N.C.
No Connection
7
DISABLE
Disable Input. High = disable, TTL-compatible input.
25
MD
Input for PIN Monitor Diode Current
19, 21
IMOD
Laser-Diode Modulation Current
17
PULLUP
VCC Supply for Internal 31Ω Pull-Up Resistor
16
IBIAS
Laser-Diode DC Bias Current
12
BIASSET
Open-Loop Adjustment for Laser-Diode Bias Current
32
COMP
External Compensation Capacitor for Closed-Loop Laser-Diode Bias Current Control Stability
30
MODMON
IMOD Current Monitor (gain = 1/33 IQMOD). Open PNP collector, connect to ground if not used.
29
BIASMON
IBIAS Current Monitor (gain = 1/38 IBIAS). Open PNP collector, connect to ground if not used.
27
APCSET
Closed-Loop Adjustment for Laser-Diode Bias Current


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