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| 型号： | ADN2841ACPZ-48 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 10/16页 |
| 文件大小： | 0K |
| 描述： | IC LSR DRVR 2.7GBPS 5.5V 48LFCSP |
| 标准包装： | 1 |
| 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： | 托盘 |
| 安装类型： | 表面贴装 |
ADN2841
MONITOR CURRENTS
IBMON, IMMON, IMPDMON, and IMPDMON2 are current
controlled current sources from V CC . They mirror the bias, modu-
lation, and MPD current for increased monitoring functionality.
An external resistor to GND gives a voltage proportional to the
current monitored.
DUAL MPD DWDM FUNCTION (48-LEAD LFCSP
ONLY)
The ADN2841 has circuitry for an optional second monitor
photodiode, MPD2. The second photodiode current is mirrored
to IMPDMON2 for wavelength control purposes and is summed
internally for the power control loop. For single MPD circuits,
the IMPD2 pin is tied to GND.
The second monitor photodiode enables the system designer to
use the two currents to control the wavelength of the laser diode
Data Sheet
If the monitor current functions IMPDMON and IMPDMON2
are not required, the IMPD and IMPD2 pins can be grounded,
and the monitor photodiode output can be connected directly
to PSET.
IDTONE (48-LEAD LFCSP ONLY)
The IDTONE pin is supplied for fiber identification/supervisory
channels or control purposes in WDM. This pin modulates the
Optical 1 level over a possible range of 2% of minimum I MOD to
10% of maximum I MOD . The level of modulation is set by connect-
ing an external current sink between the IDTONE pin and ground.
There is a gain of 2 from this pin to the I MOD current.
the ADN2841 to allow fiber identification.
Note that using IDTONE during transmission may cause
optical eye degradation.
using various optical filtering techniques inside the laser module.
REF CLOCK
20MHz TO 180MHz
10kHz TO 1MHz
50?
CLKIN
9
AD9850/AD9851
DDS
1.25mA TO 20mA
21
I OUT
LP FILTER
(DC-COUPLED)
AD8602
1/2
0.125mA TO 2mA
BC550
35 IDTONE
ADN2841
20
R SET
12
IOUTB
50?
500?
CONTROLLER
37.5μA TO 600μA
BC550
AD8602
1/2
50μA TO 800μA
1k?
32
IMMON
1.3k?
Figure 8. Circuitry to Allow Fiber Identification
Rev. B | Page 10 of 16
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相关代理商/技术参数 |
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| ADN2841ACPZ-48-RL | 功能描述:IC LSR DRVR 2.7GBPS 5.5V 48LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 激光驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:60 系列:- 类型:激光二极管驱动器 数据速率:- 通道数:4 电源电压:3.3V 电流 - 电源:- 电流 - 调制:- 电流 - 偏置:- 工作温度:0°C ~ 70°C 封装/外壳:40-TQFN 裸露焊盘 供应商设备封装:40-TQFN EP 包装:托盘 安装类型:表面贴装 |
| ADN2843 | 制造商:AD 制造商全称:Analog Devices 功能描述:10.709 Gbps Laser Diode Driver Chipset |
| ADN2843CHIPSET | 制造商:Analog Devices 功能描述:Drivers, 10.709Gbps Laser Diode Driver Chipset |
| ADN2843CHIPSET-B | 制造商:Analog Devices 功能描述:Drivers, 10.709Gbps Laser Diode Driver Chipset |
| ADN2844BCP-32 | 制造商:Analog Devices 功能描述: |
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