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| 型号： | ADN2830ACPZ32 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/10页 |
| 文件大小： | 0K |
| 描述： | IC LASR CTRLR 1CHAN 5.5V 32LFCSP |
| 标准包装： | 1 |
| 类型： | 激光二极管控制器（光纤） |
| 通道数： | 1 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 电流 - 电源： | 25mA |
| 电流 - 偏置： | 200mA |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 32-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 32-LFCSP-VQ（5x5） |
| 包装： | 托盘 |
| 安装类型： | 表面贴装 |
| 产品目录页面： | 788 (CN2011-ZH PDF) |
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FEATURES
Bias Current Range 4 mA to 200 mA
Continuous Wave Laser
Average Power Controller
ADN2830
GENERAL DESCRIPTION
The ADN2830 provides closed-loop control of the average
Monitor Photodiode Current 50
A to 1200
A
optical power of a continuous wave (CW) laser diode (LD)
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
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. R PSET is set at 1.23/I AV , where I AV
is the MPD current corresponding to the desired optical power.
5 mm
5 mm 32-Lead LFCSP Package
Programmable alarms are provided for laser fail (end of life)
APPLICATIONS
Fiber Optic Communication
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.
FUNCTIONAL BLOCK DIAGRAM
V CC
IBMON
IMPDMON
ALS
FAIL
DEGRADE
MODE
V CC
GND
V CC
MPD
IMPD
LD
GND
IBIAS
CONTROL
PSET
ASET
R PSET
GND
PAVCAP
GND
REV. B
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
RASET
GND
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 www.analog.com
Fax: 781/461-3113 ?2012 AnalogDevices,Inc.Allrightsreserved.
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相关代理商/技术参数 |
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| ADN2830-EVALZ | 制造商:Analog Devices 功能描述:EVAL KIT FOR CONTINUOUS WAVE LASER AVERAGE PWR CNTRLR - Bulk |
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