ADN2830 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ADN2830
Manufacturer

ADI
ChipWorker Part#

CW430804303
Description

Continuous Wave Laser Average Power Controller
Documentation

Datasheet

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ADN2830 Specifications

Attribute	Attribute Value

Part Number	ADN2830
Manufacturer	ADI
ChipWorker Part#	CW430804303
Documentation	Datasheet
Case/Package	VQCCN
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Product Lifecycle Status	Active

Product Description

GENERAL DESCRIPTION
The ADN2830 provides closed loop control of the average optical power of a continuous wave (CW) laser diode (LD) after initial factory setup. The control loop adjusts the laser Ibias to maintain a constant Back-Facet Monitor Photo Diode (MPD) current and hence a constant laser optical
power. The external PSET resistor is adjusted during factory setup to set the 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).
To provide monitoring of the MPD current, the MPD can be connected to the IMPD pin. In this case the MPD current is mirrored to the IMPDMON pin to provide a monitor, and internally to the PSET pin to close the control loop. By closing the feedback using IBMON rather than an MPD
connected to PSET , the device is configured to control a constant current in the laser rather than a constant optical output power.
FEATURES
Bias Current range 4mA to 200 mA
Monitor Photo Diode current 50uA to 1200uA
Closed loop control of Average Power
Laser fail and laser degrade alarms
Automatic laser shutdown, ALS
Full current parameter monitoring
5 V operation
-40"C to 85"C Temperature Range
5mm x5mm 32 pin LFCSP package
APPLICATIONS
Fiber Optic Communication

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