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參數(shù)資料
| 型號(hào)： | EVAL-ADN2843 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 10.709 Gbps Laser Diode Driver Chipset |
| 中文描述： | 10.709 Gbps的激光二極管驅(qū)動(dòng)器芯片組 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 710K |
| 代理商： | EVAL-ADN2843 |
ADN2843
10.709 Gbps Laser Diode
Driver Chipset
REV. 0
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
www.analog.comFUNCTIONAL BLOCK DIAGRAM
MPD
V
CC
IMPD
IMPD2
GND
MODE
ALS
ERSET
PSET
IDTONE
ADN2844
I
I
I
I
F
D
GND
GND
GND
ERCAP
PAVCAP
GND
CONTROL
IBIAS_CTRL
D_IMOD
IMOD_CTRL
V
CC
V
CC
DATAP
DATAN
V
CC
V
CC
ADN2843
ADN2845
IMODN
GND
IBIAS
ALS
*
ADN2850 OR ADN2860 OPTICAL SUPERVISOR
LD
GND
IMODP
ASET
*
*
FEATURES
Data Rates from 9.952 Gbps to 10.709 Gbps
Typical Rise/Fall Time 25 ps/23 ps
Bias Current Range 3 mA to 80 mA
Modulation Current Range 5 mA to 80 mA
Monitor Photodiode Current 50 A to 1200 A
Closed-Loop Control of Both Average Optical Power
and Extinction Ratio
Laser Fail and Laser Degrade Alarms
Automatic Laser Shutdown, ALS
Dual MPD Functionality for Wavelength Control
CML Data Inputs
50
Internal Data Terminations
3.3 V Single-Supply Operation
Driver Supplied in Dice Format
APPLICATIONS
SONET OC-192, SDH STM-64
Supports 10.667 Gbps and 10.709 Gbps FEC Rates
10 Gb Ethernet IEEE802.3ae
GENERAL DESCRIPTION
The ADN2943 chipset consists of two components, the ADN2845
and the ADN2844. The ADN2845 is a 10.709 Gbps laser diode
driver. The ADN2845 eliminates the need to ac couple since it
can deliver 80 mA of modulation while dc coupled to the laser
diode. It is intended to be copackaged with the laser to minimize
bond lengths, which improves performance of the optical
transmitter. For transmission line applications, contact HSN
Application Group at fiberoptic.ic@analog.com.
The ADN2844 offers a unique control loop algorithm and pro-
vides dual loop control of both average power and extinction ratio.
Programmable alarms are provided for laser fail (end of life) and
laser degrade (impending fail).
Both the ADN2844 and the ADN2845 are available as bare die.
The ADN2844 is also available in 5 mm
￥
5 mm 32-lead LFCSP.
a
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