+3.3V, 2.5Gbps LASER DRIVER FEATURES CURRENT MONITORS AND APC
SUNNYVALE, CA-January 7, 2000-Maxim Integrated Products introduces the MAX3869, a +3.3V, 2.5Gbps SDH/SONET laser driver with current monitors and automatic power control (APC). The MAX3869 is ideal for applications in 2.5Gbps SDH/SONET transmission systems such as add/drop multiplexers, digital cross-connects, section regenerators, and optical transmitters. When combined with the MAX3890 16:1 serializer, the MAX3869 forms a complete, low-power 2.5Gbps transmitter.
The MAX3869 uses only 211mW of power. The device accepts differential PECL data and clock inputs and provides bias and modulation currents for driving a laser. An APC feedback loop is incorporated to maintain constant average optical power temperature and lifetime. Bias and modulation current monitors that are directly proportional to the laser bias and modulation are included. The MAX3869 also provides enable control and a failure monitor output to indicate when the APC loop is unable to maintain the average optical power. The wide modulation current range of 5mA to 60mA and bias current range of 1mA to 100mA are easy to program, making this product ideal for use in a variety of SDH/SONET applications.
The MAX3869 is available in a small (5mm x 5mm) 32-pin TQFP package as well as dice and is specified for the extended-industrial temperature range (-40°C to +85°C). Prices start from 18.00 (1000-up, factory direct, FOB USA). An evaluation kit is available.
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