The MAX3669 is a complete, +3.3V laser driver with automatic
power control (APC) circuitry for SDH/SONET applications
up to 622Mbps. It accepts differential PECL
inputs, provides bias and modulation currents, and operates
over a temperature range from -40°C to +85°C.
An APC feedback loop is incorporated to maintain a
constant average optical power over temperature and
lifetime. The wide modulation current range from 5mA to
75mA and bias current of 1mA to 80mA are easy to
program, making this product ideal for use in various
SDH/SONET applications. Two pins are provided to
monitor the current levels in the laser: BIASMON with
current proportional to laser bias current, and MODMON
with current proportional to laser modulation.
The MAX3669 also provides enable control and a failure-monitor
output to indicate when the APC loop is unable
to maintain the average optical power. The MAX3669
is available in 4mm x 4mm 24-pin thin QFN and
5mm x 5mm 32-pin TQFP packages as well as dice.
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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