参数资料
型号: ADN2847ACPZ-32
厂商: Analog Devices Inc
文件页数: 13/16页
文件大小: 0K
描述: IC LSR DRVR 3.3GBPS 3.6V 32LFCSP
标准包装: 1
类型: 激光二极管驱动器(光纤)
数据速率: 3.3Gbps
通道数: 1
电源电压: 3 V ~ 3.6 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: 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
Data Sheet
ALS
FAIL
DEGRADE
ADN2847
V CC
*
V CC
1.5k ?
1.5k ?
1k ?
*
*
*
*
36
25
MPD
V CC
LD
*
37
GND2
V CC 2
IMODN
IMODN
GND2
GND
GND
CLKN
CLKP
GND1
24
GND
10nF
10nF
CLKN
CLKP
*
*
*
IMODP
IMODP
ADN2847
DATAP
DATAN
10nF
10nF
DATAP
DATAN
V CC
*
GND2
GND2
GND1
V CC 1
1μH
R Z
48
I BIAS
I BIAS
CCBIAS
GND
PAVCAP
ERCAP
1μF
1μF
13
1
**
**
1.5k ?
12
V CC s SHOULD HAVE BYPASS CAPACITORS AS
CLOSE AS POSSIBLE TO THE ACTUAL SUPPLY PINS
ON THE ADN2847 AND THE LASER DIODE USED.
CONSERVATIVE DECOUPLING WOULD INCLUDE
100pF CAPACITORS IN PARALLEL WITH 10nF
CAPACITORS.
LD = LASER DIODE
MPD = MONITOR PHOTODIODE
V CC
100nF
100nF
100nF
100nF
10μF
GND
NOTES
* DESIGNATES COMPONENTS THAT NEED TO BE OPTIMIZED FOR THE TYPE OF LASER USED.
** FOR DIGITAL PROGRAMMING, THE ADN2850 OR THE ADN2860 OPTICAL SUPERVISOR CAN BE USED.
Figure 15. AC-Coupled 50 Mbps to 3.3 Gbps Test Circuit, Data Not Clocked
Figure 16. 2.5 Gbps Optical Eye at 25°C. Average Power = 0 dBm,
Extinction Ratio = 10 dB, PRBS 31 Pattern. Eye Obtained Using a DFB Laser.
Figure 17. 2.5 Gbps Optical Eye at 85°C. Average Power = 0 dBm,
Extinction Ratio = 10 dB, PRBS 31 Pattern. Eye Obtained Using a DFB Laser.
Rev. B | Page 13 of 16
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