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参数资料
| 型号： | ADN2841ACPZ-48-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC LSR DRVR 2.7GBPS 5.5V 48LFCSP |
| 标准包装： | 2,500 |
| 类型： | 激光二极管驱动器（光纤） |
| 数据速率： | 2.7Gbps |
| 通道数： | 1 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 电流 - 电源： | 50mA |
| 电流 - 调制： | 80mA |
| 电流 - 偏置： | 100mA |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 48-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 48-LFCSP |
| 包装： | 带卷 (TR) |
| 安装类型： | 表面贴装 |
Dual-Loop, 50 Mbps to 2.7 Gbps
Laser Diode Driver
Data Sheet
FEATURES
50 Mbps to 2.7 Gbps operation
Typical rise/fall time: 80 ps
Bias current range: 2 mA to 100 mA
Modulation current range: 5 mA to 80 mA
Monitor photodiode current: 50 μA to 1200 μA
Closed-loop control of power and extinction ratio
Laser fail and laser degrade alarms
Automatic laser shutdown (ALS)
Dual MPD functionality for DWDM
Optional clocked data
Full current parameter monitoring
5 V operation
48-lead LFCSP
32-lead LFCSP (reduced functionality)
APPLICATIONS
DWDM dual MPD wavelength fixing
SONET OC-1/3/12/48
SDH STM-1/4/16
Fibre Channel
Gigabit Ethernet
GENERAL DESCRIPTION
The ADN2841 uses a unique control algorithm to control both
the average power and extinction ratio of the laser diode (LD)
after initial factory setup. Because power and extinction ratio
control are fully integrated, external component count is low
and PCB area is small. Programmable alarms are provided for
laser fail (end of life) and laser degrade (impending fail).
The ADN2841 has circuitry for a second monitor photodiode,
which enables DWDM wavelength control.
FUNCTIONAL BLOCK DIAGRAM
V CC
IMODN
V CC
MPD
V CC
IMODP
LD
IMPD
I MOD
DATAP
DATAN
CLKP
IMPD2
CONTROL
CLKN
GND
PSET
I BIAS
IBIAS
GND ERSET
ADN2841
ASET
GND
ERCAP
PAVCAP
IDTONE
LBWSET
GND
GND
GND
Figure 1.
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. Specifications subject to change without notice. No
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ?2001–2013 Analog Devices, Inc. All rights reserved.
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