ONET4211LD Texas instruments

ONET4211LD

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ONET4211LD

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Описание

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.

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
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

Type	Laser driver
Data rate (max) (MBits)	4250
Features	Automatic power control loop, Bias current digital select, Modulation current digital select
Supply current (typ) (µA)	22000
Imod (A)	0.085
Supply current (max) (µA)	45000
Deterministic jitter (typ) (ps)	13
Operating temperature range (°C)	-40 to 85