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ADN2830,pdf datasheet (Average

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  • 标      签: 激光驱动器 Controller

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The ADN2830 provides closed-loop control of the averageopTIcal power of a conTInuous wave (CW) laser diode (LD)after iniTIal factory setup. The control loop adjusts the laserIBIAS to maintain a constant back facet monitor photodiode(MPD) current and thus a constant laser opTIcal power. Theexternal PSET resistor is adjusted during factory setup to setthe desired optical power. RPSET is set at 1.23/IAV, where IAVis the MPD current corresponding to the desired optical power.Programmable alarms are provided for laser fail (end of life)and laser degrade (impending fail).
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