The MAX3273 is a compact, low-power laser driver for
applications up to 2.7Gbps. The device uses a single
+3.3V supply and typically consumes 30mA. The bias
and modulation current levels are programmed by
external resistors. An automatic power-control (APC)
loop is incorporated to maintain a constant average
optical power over temperature and lifetime. The laser
driver is fabricated using Maxim's in-house, second-generation
SiGe process.
The MAX3273 accepts differential CML-compatible
clock and data input signals. Inputs are self-biased to
allow AC-coupling. An input data-retiming latch can be
enabled to reject input jitter if a clock signal is available.
The driver can provide bias current up to 100mA and
modulation current up to 60mAP-P with typical (20% to
80%) edge speeds of 59ps. A failure-monitor output is
provided to indicate when the APC loop is unable to
maintain average optical power. The MAX3273 is available
in 4mm x 4mm, 24-pin QFN and thin QFN packages,
as well as in die form.
Key Features
Applications/Uses
30mA Power-Supply Current
Single +3.3V Power Supply
Up to 2.7Gbps (NRZ) Operation
Automatic Average Power Control with Failure Monitor
Programmable Modulation Current from 5mA to 60mA
Programmable Bias Current from 1mA to 100mA
Typical Fall Time of 59ps
Selectable Data Retiming Latch
Complies with ANSI, ITU, and Bellcore SDH/SONET Specifications
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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