GENERAL DESCRIPTION

The ADN2848 uses a unique control algorithm to control both the average power and the extinction ratio of the laser diode (LD) after initial factory setup. External component count and PCB area are low because both power and extinction ratio control are fully integrated. Programmable alarms are provided for laser fail (end of life) and laser degrade (impending fail).

FEATURES

50 Mbps to 1.25 Gbps operation

Single 3.3 V operation

Bias current range: 2 to 100 mA

Modulation current range: 5 to 80 mA

Monitor photo diode current: 50 μA to 1200 μA

50 mA supply current at 3.3 V

Closed-loop control of power and extinction ratio

Full current parameter monitoring

Laser fail and laser degrade alarms

Automatic laser shutdown (ALS)

Optional clocked data

Supports FEC rates

32-lead, 5 mm × 5 mm LFCSP_VQ package

APPLICATIONS

SONET OC-1/3/12/24

SDH STM-0/1/4

Fibre Channel

Gigabit Ethernet

ADN2848属于集成电路（IC） > 激光驱动器。亚德诺半导体技术有限公司制造生产的ADN2848激光驱动器激光驱动器电源管理集成电路 (PMIC) 可用于提供一个或多个受控电流源，以从标称恒定电压电源为半导体激光器件供电。产品通常支持通过监控受驱动的激光器件发出的光功率而得到反馈，可广泛应用于光通信系统中；并因具有对提供给用电设备的电流进行高频调制的能力，而与执行类似功能的器件区分开来。