描述 Description

The ONET4211LD 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.

特性 Features

? Multirate Operation From 155 Mbpsup 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
? 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