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ADN2830

Features: Bias Current Range 4 mA to 200 mAClosed-Loop Control of Average PowerLaser FAIL and Laser DEGRADE AlarmsAutomatic Laser Shutdown, ALSFull Current Parameter Monitoring5 V OperationAPPLICATIONSFiber Optic CommunicationPinoutSpecificationsVCC to GND . . . . . . . . . . . . . . . . . . . . ....

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SeekIC No. : 004276191 Detail

ADN2830: Features: Bias Current Range 4 mA to 200 mAClosed-Loop Control of Average PowerLaser FAIL and Laser DEGRADE AlarmsAutomatic Laser Shutdown, ALSFull Current Parameter Monitoring5 V OperationAPPLICATI...

ADN2830 Data Sheet

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Part Number:
ADN2830
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

Bias Current Range 4 mA to 200 mA
Closed-Loop Control of Average Power
Laser FAIL and Laser DEGRADE Alarms
Automatic Laser Shutdown, ALS
Full Current Parameter Monitoring
5 V Operation
APPLICATIONS
Fiber Optic Communication




Pinout

Connection Diagram




Specifications

VCC to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 V
Digital Inputs (ALS, Mode) . . . . . . . . . 0.3 V to VCC + 0.3 V
Operating Temperature Range
Industrial . . . . . . . . . . . . . . . . . . . . . . . . . . 40°Cto+85°C
Storage Temperature Range . . . . . . . . . . 65°Cto+150°C
Junction Temperature (TJ Max ) . . . . . . . . . . . . . . . . .150°C
JA Thermal Impedance2. . . . . . . . . . . . . . . . . . . . 32°C/W
32-Lead LFCSP Package,
Power Dissipation . . . . . . . . . . . . . . (TJ Max TA)/JA mW
Lead Temperature (Soldering 10 sec) . . . . . . . . . . . .300°C




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 photodiode (MPD) current and thus 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 IAV is the MPD current corresponding to the desired optical power. Programmable alarms are provided for laser fail (end of life) and laser degrade (impending fail) for ADN2830.

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, ADN2830 is configured to control a constant current in the laser rather than a constant optical output power.






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