ADN2847ACP-32-RL

更新时间： 2024-02-06 21:06:17

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
12页	403K
描述
3 V Dual-Loop 50 Mbps to 3.3 Gbps Laser Diode Driver

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

ADN2847ACP-32-RL 数据手册

浏览型号ADN2847ACP-32-RL的Datasheet PDF文件第10页

ADN2847

Caution must be taken when choosing component values for

ac coupling to ensure that the time constants (L/R and RC, see

Figure 12) are sufficiently long for the data rate and expected

number of CIDs (consecutive identical digits). Failure to do this

could lead to pattern dependent jitter and vertical eye closure.

IMPD

ADN2847

ADN2850

SDI

IMODP

For designs with low series resistance, or where external components

become impractical, the ADN2847 supports direct connection

to the laser diode (see Figure 11). In this case, care must be

taken to ensure that the voltage drop across the laser diode does

not violate the minimum compliance voltage on the IMODP pin.

BIAS

SDO

PSET

DAC1

DAC2

ERSET

CLK

DATAP

DATAN

Optical Supervisor

The PSET and ERSET potentiometers may be replaced with a

dual-digital potentiometer, the ADN2850 (see Figure 10). The

ADN2850 provides an accurate digital control for the average

optical power and extinction ratio and ensures excellent stability

over temperature.

IDTONE

Figure 10. Application Using the ADN2850 a Dual 10-Bit

Digital Potentiometer with an Extremely Low Temperature

Coefficient as an Optical Supervisor

FAIL

DEGRADE

ALS

1kꢄ

1.5kꢄ

GND2

GND

10nF

CLKN

CLKP

IMODN

CLKN

CLKP

GND1

DATAP

DATAN

GND1

IMODN

GND2

MPD

10nF

IMODP

GND2

DATAP

DATAN

ADN2847

GND

PAVCAP

ERCAP

BIAS

22nF

BIAS

10ꢀH

22nF

CCBIAS

s SHOULD HAVE BYPASS CAPACITORS AS

CLOSE AS POSSIBLETOTHE ACTUAL SUPPLY PINS

ONTHE ADN2847 ANDTHE LASER DIODE USED.

CONSERVATIVE DECOUPLINGWOULD INCLUDE

100pF CAPACITORS IN PARALLELWITH 10nF

CAPACITORS.

1.5kꢄ

** **

LD = LASER DIODE

MPD = MONITOR PHOTODIODE

100nF

GND

100nF

10ꢀF

NOTES

DESIGNATES COMPONENTSTHAT NEEDTO BE OPTIMIZED FORTHETYPE OF LASER USED.

**FOR DIGITAL PROGRAMMING,THE ADN2850 ORTHE ADN2860 OPTICAL SUPERVISOR CAN BE USED.

Figure 11. DC-Coupled 3.3 Gbps Test Circuit, Data Not Clocked

REV. 0

–9–

1...6 7 8910 11 12

下载PDF

与ADN2847ACP-32-RL相关器件

型号	品牌	描述	获取价格	数据表
ADN2847ACP-32-RL7	ADI	3 V Dual-Loop 50 Mbps to 3.3 Gbps Laser Diode Driver	获取价格
ADN2847ACP-48	ADI	3 V Dual-Loop 50 Mbps to 3.3 Gbps Laser Diode Driver	获取价格
ADN2847ACP-48-RL	ADI	3 V Dual-Loop 50 Mbps to 3.3 Gbps Laser Diode Driver	获取价格
ADN2847ACPZ-32	ADI	3.3 V Dual-Loop 50 Mbps to 3.3 Gbps Laser Diode Driver	获取价格
ADN2847ACPZ-32-RL	ADI	3.3 V Dual-Loop 50 Mbps to 3.3 Gbps Laser Diode Driver	获取价格
ADN2848	ADI	3 V Dual-Loop 50 Mbps to 1.25 Gbps Laser Diode Driver	获取价格