Datasheet > ADN2841ACPZ-48-RL

ADN2841ACPZ-48-RL

更新时间： 2024-02-29 02:52:10

品牌	Logo	应用领域
罗彻斯特 - ROCHESTER		接口集成电路
页数	文件大小	规格书
13页	992K
描述
SPECIALTY INTERFACE CIRCUIT, QCC48, ROHS COMPLIANT, MO-220-VKKD-2, LFCSP-48

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ADN2841ACPZ-48-RL 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	QFN
包装说明：	HVQCCN,	针数：	48
Reach Compliance Code：	unknown	风险等级：	5.59
Is Samacsys：	N	接口集成电路类型：	INTERFACE CIRCUIT
JESD-30 代码：	S-XQCC-N48	JESD-609代码：	e3
长度：	7 mm	湿度敏感等级：	3
功能数量：	1	端子数量：	48
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	认证状态：	COMMERCIAL
座面最大高度：	1 mm	最大供电电压：	5.5 V
最小供电电压：	4.5 V	标称供电电压：	5 V
表面贴装：	YES	温度等级：	INDUSTRIAL
端子面层：	MATTE TIN	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：	7 mm
Base Number Matches：	1

ADN2841ACPZ-48-RL 数据手册

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ADN2841

REF CLOCK

20MHz–

180MHz

10kHz–1MHz

CLKIN

1.25mA–20mA

IDTONE

OUT

LP FILTER

(DC-COUPLED)

AD8602

1/2

0.125mA–2mA

AD9850/AD9851

DDS

50ꢄ

BC550

OUT

SET

50ꢄ

ADN2841

500ꢄ

AD8602

1/2

37.5ꢀA–600ꢀA

50ꢀA–800ꢀA

1000ꢄ

IMMON

BC550

CONTROLLER

1300ꢄ

Figure 3. Circuitry to Allow Fiber Identification

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 MPD2 pin

is tied to GND.

ADN2841

DATAP

DATAN

TO FLIP-FLOPS

This enables the system designer to use the two currents to

control the wavelength of the laser diode using various optical

filtering techniques inside the laser module.

50ꢄ 50ꢄ

REG

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.

R = 2.5kꢄ, DATA

R = 3kꢄ, CLK

400ꢀATYP

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 one level over a possible range of 2% of minimum IMOD

to 10% of maximum IMOD. The level of modulation is set by

connecting an external current sink between the IDTONE pin and

ground. There is a gain of two from this pin to the IMOD current.

Figure 4. AC-Coupling of Data Inputs

CCBIAS

CCBIAS should be connected to the BIAS pin if the laser diode is

connected to the ADN2841 using a capacitor. CCBIAS is a

current sink to GND.

Figure 3 shows how an AD9850/AD9851 DDS may be used

with the ADN2841 to allow fiber identification.

Note that using IDTONE during transmission may cause opti-

cal eye degradation.

AUTOMATIC LASER SHUTDOWN

The ADN2841 ALS allows compliance to ITU-T-G958

(11/94), section 9.7.

DATA, CLOCK INPUTS

Data and clock inputs are ac-coupled (10 nF recommended)

and terminated via a 100 Ω internal resistor between DATAP

and DATAN and also between CLKP and CLKN pins. There

is a high impedance circuit to set the common-mode voltage

that is designed to change overtemperature. It is recommended

that ac-coupling be used to eliminate the need for matching

between common-mode voltages.

When ALS is logic high, both bias and modulation currents are

turned off.

Correct operation of ALS can be confirmed by the fail alarm

being raised when ALS is asserted. Note this is the only time

that DEGRADE will be low while FAIL is high.

REV. A

–7–

1...5 6 789 10 11...13

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与ADN2841ACPZ-48-RL相关器件

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ADN2843	ADI	获取价格	10.709 Gbps Laser Diode Driver Chipset
ADN2843CHIPSET	ADI	获取价格	10.709 Gbps Laser Diode Driver Chipset
ADN2843CHIPSET-B	ADI	获取价格	10.709 Gbps Laser Diode Driver Chipset
ADN2843XXX(1)	ADI	获取价格	IC SPECIALTY INTERFACE CIRCUIT, Interface IC:Other
ADN2847	ADI	获取价格	3 V Dual-Loop 50 Mbps to 3.3 Gbps Laser Diode Driver
ADN2847ACP-32	ADI	获取价格	3 V Dual-Loop 50 Mbps to 3.3 Gbps Laser Diode Driver
ADN2847ACP-32-RL	ADI	获取价格	3 V Dual-Loop 50 Mbps to 3.3 Gbps Laser Diode Driver
ADN2847ACP-32-RL7	ADI	获取价格	3 V Dual-Loop 50 Mbps to 3.3 Gbps Laser Diode Driver
ADN2847ACP-48	ADI	获取价格	3 V Dual-Loop 50 Mbps to 3.3 Gbps Laser Diode Driver
ADN2847ACP-48-RL	ADI	获取价格	3 V Dual-Loop 50 Mbps to 3.3 Gbps Laser Diode Driver

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