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ADN2870ACPZ

更新时间: 2024-01-24 18:48:43
品牌 Logo 应用领域
亚德诺 - ADI 驱动器二极管激光二极管
页数 文件大小 规格书
20页 787K
描述
3.3 V Dual-Loop, 50 Mbps to 3.3 Gbps Laser Diode Driver

ADN2870ACPZ 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:QFN
包装说明:HVQCCN, LCC24,.16SQ,20针数:24
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.09
Is Samacsys:N接口集成电路类型:INTERFACE CIRCUIT
JESD-30 代码:S-XQCC-N24JESD-609代码:e3
长度:4 mm湿度敏感等级:3
功能数量:1端子数量:24
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:UNSPECIFIED封装代码:HVQCCN
封装等效代码:LCC24,.16SQ,20封装形状:SQUARE
封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度(摄氏度):260
电源:3.3 V认证状态:Not Qualified
座面最大高度:1 mm子类别:Display Drivers
最大供电电压:3.6 V最小供电电压:3 V
标称供电电压:3.3 V表面贴装:YES
技术:BICMOS温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)端子形式:NO LEAD
端子节距:0.5 mm端子位置:QUAD
处于峰值回流温度下的最长时间:40宽度:4 mm
Base Number Matches:1

ADN2870ACPZ 数据手册

 浏览型号ADN2870ACPZ的Datasheet PDF文件第2页浏览型号ADN2870ACPZ的Datasheet PDF文件第3页浏览型号ADN2870ACPZ的Datasheet PDF文件第4页浏览型号ADN2870ACPZ的Datasheet PDF文件第5页浏览型号ADN2870ACPZ的Datasheet PDF文件第6页浏览型号ADN2870ACPZ的Datasheet PDF文件第7页 
3.3 V Dual-Loop, 50 Mbps to 3.3 Gbps  
Laser Diode Driver  
ADN2870  
FEATURES  
GENERAL DESCRIPTION  
SFP/SFF and SFF-8472 MSA-compliant  
SFP reference design available  
50 Mbps to 3.3 Gbps operation  
Multirate 155 Mbps to 3.3 Gbps operation  
Dual-loop control of average power and extinction ratio  
Typical rise/fall time 60 ps  
Bias current range 2 mA to 100 mA  
Modulation current range 5 mA to 90 mA  
Laser fail alarm and automatic laser shutdown (ALS)  
Bias and modulation current monitoring  
3.3 V operation  
The ADN2870 laser diode driver is designed for advanced SFP  
and SFF modules, using SFF-8472 digital diagnostics. The device  
features dual-loop control of the average power and extinction  
ratio, which automatically compensates for variations in laser  
characteristics over temperature and aging. The laser need only  
be calibrated at 25°C, eliminating the need for expensive and  
time consuming temperature calibration. The ADN2870 supports  
single-rate operation from 50 Mbps to 3.3 Gbps or multirate  
from 155 Mbps to 3.3 Gbps.  
Average power and extinction ratio can be set with a voltage  
provided by a microcontroller DAC or by a trimmable resistor.  
The part provides bias and modulation current monitoring as  
well as fail alarms and automatic laser shutdown. The device  
interfaces easily with the ADI ADuC70xx family of micro-  
converters and with the ADN289x family of limiting amplifiers  
to make a complete SFP/SFF transceiver solution. An SFP  
reference design is available. The product is available in a space-  
saving 4 mm ×4 mm LFCSP package specified over the −40°C to  
+85°C temperature range.  
4 mm × 4 mm LFCSP package  
Voltage setpoint control  
Resistor setpoint control  
APPLICATIONS  
Multirate OC3 to OC48-FEC SFP/SFF modules  
1×/2×/4× Fibre channel SFP/SFF modules  
LX-4 modules  
DWDM/CWDM SFP modules  
1GE SFP/SFF transceiver modules  
VCC  
VCC  
VCC  
Tx_FAULT  
VCC  
L
Tx_FAIL  
VCC  
FAIL  
ALS  
IMODN  
LASER  
R
MPD  
IMODP  
DATAP  
DATAN  
PAVSET  
PAVREF  
ADI  
MICROCONTROLLER  
100  
IMOD  
IBIAS  
DAC  
ADC  
IBIAS  
CONTROL  
RPAV  
1kΩ  
GND  
CCBIAS  
ERREF  
ERSET  
DAC  
ADN2870  
1kΩ  
GND  
IBMON  
IMMON  
PAVCAP  
ERCAP  
VCC GND  
GND  
GND  
1kΩ  
GND  
470Ω  
GND  
Figure 1. Application Diagram Showing Microcontroller Interface  
Protected by US patent: US6414974  
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.  
Specifications subject to change without notice. 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 owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.326.8703  
www.analog.com  
© 2004 Analog Devices, Inc. All rights reserved.  

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