ADI ADN2870ACPZ

激光二极管驱动器3.3Gbps3V ~ 3.6V

Overview

The ADN2870ACPZ laser diode driver is designed for advanced SFPand SFF modules, using SFF-8472 digital diagnostics. The devicefeatures dual-loop control of the average power and extinctionratio, which automatically compensates for variations in lasercharacteristics over temperature and aging. The laser needs onlyto be calibrated at 25°C, eliminating the expensive and timeconsuming temperature calibration. The ADN2870ACPZ supportssingle-rate operation from 50 Mbps to 3.3 Gbps or multirateoperation from 155 Mbps to 3.3 Gbps.

Average power and extinction ratios can be set with referencevoltages provided by a microcontroller DAC or by adjustableresistors. The ADN2870ACPZ provides bias and modulation currentmonitoring as well as fail alarms and automatic laser shutdown.The device interfaces easily with the ADuC702x family ofMicroConverters® and with the ADN289x family of limitingamplifiers to make a complete SFP/SFF transceiver solution. AnSFP reference design is available. The product is available in aspace-saving 4 mm × 4 mm LFCSP specified over the −40°C to+85°C temperature range.

Features

Bulk Package
Supplied in the 24-VFQFN Exposed Pad, CSP package
Operating temperature of -40°C~85°C
Operating supply current of 30mA
Operating supply voltage of 3.3V

Surface Mount Mounting Type

Applications

There are a lot of Analog Devices Inc.
ADN2870ACPZ Laser Driver ICs applications.

• Portable telephone
• Electronic notebook
• Camera
• Video equipment
• CPU power supply
• Switching regulator
• Multiple-power supply system
• Digital audio player
• Digital TV
• Smartcard