ADN2872集成電路（IC）的激光驅(qū)動(dòng)器規(guī)格書PDF中文資料

ADN2872屬于集成電路（IC）的激光驅(qū)動(dòng)器。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的ADN2872激光驅(qū)動(dòng)器激光驅(qū)動(dòng)器電源管理集成電路 (PMIC) 可用于提供一個(gè)或多個(gè)受控電流源，以從標(biāo)稱恒定電壓電源為半導(dǎo)體激光器件供電。產(chǎn)品通常支持通過監(jiān)控受驅(qū)動(dòng)的激光器件發(fā)出的光功率而得到反饋，可廣泛應(yīng)用于光通信系統(tǒng)中；并因具有對(duì)提供給用電設(shè)備的電流進(jìn)行高頻調(diào)制的能力，而與執(zhí)行類似功能的器件區(qū)分開來。

GENERAL DESCRIPTION

Like the ADN2870, the ADN28721 laser diode driver is designed for advanced SFP and SFF modules, using SFF-8472 digital diagnostics. The device features dual-loop control of the average power and extinction ratio, which automatically compensates for variations in laser characteristics over temperature and aging. The laser needs only be calibrated at 25°C, eliminating the need for expensive and time consuming temperature calibration. The ADN2872 supports single-rate operation from 50 Mbps to 3.3 Gbps, or multirate operation from 155 Mbps to 3.3 Gbps. With a new alarm scheme, this device avoids the shutdown issue caused by the system transient generated from various lasers.

FEATURES

SFP/SFF and SFF-8472 MSA compliant

SFP reference design available

Any rate from 50 Mbps to 3.3 Gbps operation

Dual-loop control of average power and extinction ratio

Typical rise/fall time: 60 ps

Bias current range: 2 mA to 100 mA

Modulation current range: 5 mA to 90 mA

Laser FAIL alarm and automatic laser shutdown (ALS)

Bias and modulation current monitoring

3.3 V operation

4 mm × 4 mm LFCSP

Voltage setpoint control

Resistor setpoint control

APPLICATIONS

Multirate OC3 to OC48-FEC SFP/SFF modules

1×/2×/4× Fibre Channel SFP/SFF modules

LX-4 modules

DWDM/CWDM SFP modules

1GE SFP/SFF transceiver modules