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MAX3667 Datasheet(PDF) 1 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) 1 Page - Maxim Integrated Products

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________________General Description
The MAX3667 is a complete, +3.3V laser driver with
automatic power control (APC), designed for SDH/
SONET applications up to 622Mbps. It accepts differ-
ential PECL inputs, provides single-ended bias and
modulation currents, and operates over a -40°C to
+85°C temperature range.
A temperature-stabilized reference voltage simplifies
laser current programming. It allows external program-
ming of the modulation current between 5mAp-p and
60mAp-p, and of the bias current between 5mA and
90mA.
The APC function, which incorporates a monitor photo-
diode, an external resistor, and two external capacitors,
maintains constant laser output power. Two current
monitors provide high-speed signals that are directly
proportional to the bias and modulation currents.
Additional features include disable/enable control and
a slow-start feature with a minimum turn-on time of
50ns. The MAX3667 is available in die form and in a
32-pin TQFP package.
________________________Applications
622Mbps SDH/SONET Access Nodes
Laser Driver Transmitters
Section Repeaters
____________________________Features
o Single +3.3V or +5.0V Operation
o Automatic Average Power Control
o Bias Current and Modulation Current Monitor
Outputs
o TTL-Compatible Disable Input
o Temperature-Compensated Reference
o PECL-Compatible Data Inputs
+3.3V, 622Mbps SDH/SONET Laser Driver
with Automatic Power Control
________________________________________________________________
Maxim Integrated Products
1
MAX3667
MAX3691
130
130
50
82
82
PECL
1
µF
DISABLE
COMP
CCOMP
BIASMON
MODMON
APCSET
MD
MONITOR
DIODE
+3.3V
LASER
DIODE
IMOD
RFILT
22
RDAMP
4.7
100
470nH
4:1
SERIALIZER
WITH
CLOCK GEN
1
µF
0.01
µF
0.1
µF
0.1
µF
IBIAS
MODSET
GND
IN+
IN-
BIASSET
APC
CAPC
1nF
VCC
+3.3V
____________________________________________________Typical Operating Circuit
19-1311; Rev 1; 3/98
PART
MAX3667ECJ
MAX3667E/D
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE
PIN-PACKAGE
32 TQFP
Dice*
EVALUATION
KIT
AVAILABLE
_______________Ordering Information
Pin Configuration appears at end of data sheet.
*
Dice are designed to operate from -40°C to +85°C but are
tested and guaranteed only at Tj = +25°C.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.


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