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Ratio controlled multirate laser driver

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MAXIM, represented by Arrow Electronics , has introduced the MAX3737 multirate laser driver with extinction ratio control. This device operates from 155Mbps to 2.7Gbps, with a +3.3V single supply.

It can be ac or dc coupled to the laser diode for use in OC-3 to OC-48, gigabit Ethernet, and fibre channel transceiver modules.

Manufactured using Maxim's in-house, second-generation SiGe process, the MAX3737 features excellent performance and consumes less power than competing solutions.

The MAX3737 includes automatic power control (APC) and extinction ratio control features. These features, along with on-chip thermal compensation, allow the module to maintain a constant extinction ratio over lifetime and temperature.

This laser driver meets all SFF-8472 timing and diagnostic requirements for SFP modules featuring digital diagnostics.

The MAX3737 has a programmable bias current range of 1mA to 100mA.

The modulation current can also be programmed from 5mA to 60mA when DC-coupled and up to 85mA when AC-coupled. The driver has self-biasing data inputs and consumes only 155mW.

The MAX3737 has edge-speed transition times of 52ps and generates only 16ps and 0.65ps of deterministic and random jitter (2.7Gbps operation), respectively.

The MAX3737 is available in a 5mm x 5mm, 32-pin QFN package and is specified over the extended-industrial temperature range (-40°C to +85°C).

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