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11.3 Gbps Laser Diode Driver
Texas Instruments

The ONET1101L is a high-speed, 3.3-V laser driver designed to directly modulate a laser at data rates from 2 Gbps to 11.3 Gbps. The device provides a two-wire serial interface that helps digital control of the modulation, plus bias currents and cross point, eliminating the need for external components. An optional input equalizer can be used for equalization of up to 300 mm (12") of microstrip or stripline transmission line on FR4 printed circuit boards. The ONET1101L includes an integrated automatic power control (APC) loop, plus circuitry to support laser safety and transceiver management systems. The laser driver is characterized for operation from -25°C to 100°C case temperature and is available in a small footprint using a 4mm × 4mm, 24-pin RoHS-compliant QFN package.
Up to 11.3 Gbps Operation Two-Wire Digital Interface Digitally Selectable Modulation Current up to 80 mA Digitally Selectable Bias Current up to 100 mA Source or Sink Automatic Power Control (APC) Loop Supports Transceiver Management System (TMS) Programmable Input Equalizer Cross-point Control Includes Laser Safety Features Adjustable Coupling Ratio Single +3.3 V Supply Case Temperature -25°C to 100°C Small Surface Mount Footprint 4mm × 4mm 24-Pin, RoHS-compliant QFN Package APPLICATIONS 10 Gigabit Ethernet Optical Transmitters 8x and 10x Fibre Channel Optical Transmitters SONET OC-192/SDH STM-64 Optical Transmitters XFP and SFP+ Transceiver Modules XENPAK, XPAK, X2 and 300-pin MSA Transponder Modules

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