ONET4201LD Datasheet, PDF (1/26 Pages) Texas Instruments – 155-Mbps to 4.25-Gbps LASER DRIVER

ONET4201LD
www.ti.com
155-Mbps to 4.25-Gbps LASER DRIVER
SLLS677 – NOVEMBER 2005
FEATURES
• Multirate Operation From 155 Mbps up to 4.25
Gbps
• Bias Current Programmable From 1 mA
to 100 mA
• Modulation Current Programmable From 5 mA
to 85 mA
• APC and Fault Detection
• Fault Mode Selection
• Bias and Photodiode Current Monitors
• CML Data Inputs
• Temperature Compensation of Modulation
Current
• Single 3.3-V Supply
• Active Back-Termination at the Output
• Surface-Mount, Small-Footprint, 4-mm ×
4-mm, 24-Lead QFN Package
APPLICATIONS
• SONET/SDH Transmission Systems
• Fibre Channel Optical Modules
• Fiber Optic Data Links
• Digital Cross-Connects
• Optical Transmitters
DESCRIPTION
The ONET4201LD is a laser driver for multiple fiber
optic applications up to 4.25 Gbps. The device
accepts CML input data and provides bias and
modulation currents for driving a laser diode. Also
provided are automatic power control (APC),
temperature compensation of modulation current,
fault detection, and current monitor features.
The device is available in a small-footprint, 4-mm ×
4-mm, 24-pin, QFN package. The circuit requires a
single 3.3-V supply.
This power-efficient laser driver is characterized for
operation from –40°C to 85°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2005, Texas Instruments Incorporated