Datasheet > X9438WS24IT1

X9438WS24IT1

更新时间： 2024-01-11 10:24:19

品牌	Logo	应用领域
XICOR		光电二极管转换器
页数	文件大小	规格书
4页	36K
描述
Digital Potentiometer, 2 Func, CMOS, PDSO24, PLASTIC, SOIC-24

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X9438WS24IT1 技术参数

生命周期：	Transferred	包装说明：	PLASTIC, SOIC-24
Reach Compliance Code：	unknown	风险等级：	5.72
转换器类型：	DIGITAL POTENTIOMETER	JESD-30 代码：	R-PDSO-G24
长度：	15.4 mm	标称负供电电压：	-3 V
功能数量：	2	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：	PLASTIC/EPOXY	封装代码：	SOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
认证状态：	Not Qualified	座面最大高度：	2.65 mm
标称供电电压：	3 V	表面贴装：	YES
技术：	CMOS	温度等级：	INDUSTRIAL
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	宽度：	7.5 mm
Base Number Matches：	1

X9438WS24IT1 数据手册

Application Note

AN99

Temperature and Optical Power Output Control for DFB Laser

Applications using the X9438.

By Joe Ciancio, FAE Xicor Japan, January 1999.

Recent years have seen the use of Distributed Feedback

(DFB) Lasers become widespread in applications such

as CATV, Telecommunications, and computer Networks,

to name but a few. With this, comes a need to control

these Lasers in order to provide efﬁcient operation, and

obtain the maximum usable lifetime from these some-

times expensive DFB devices.

The X9438 provides two independent programmable Op

Amps, and two independent Digitally Controlled Potenti-

ometers (DCPs) in one pack-age. These elements are

accessed using a common 2-Wire Serial Interface, and

can be controlled using the I C bus provided on-board

many commonly available, and inexpensive microcon-

trollers.

The efﬁcient operation of a DFB Laser, involves namely,

the control of :

There are many readily available DFP Lasers which inte-

grate into the one package, devices which enable the

monitoring and control of laser optical power output and

temperature. The LSC2210 from Hewlett Packard, is an

example of one such device.

• Operating Temperature,

• Optical Power Output.

Figure 1 shows the pin assignment of the LSC2210. In

addition to the Laser Diode (LD), there are pin connec-

tions for a Thermistor, Monitor pin Photodiode (PD), and

a Peltier effect Thermoelectric Cooler (TEC).

Changes in ambient operating temperature, and degra-

dation of Optical Power Output with time however, can be

controlled simply, using the X9438.

Figure 1. Pin assignment for LSC2210 DFB Laser

AN99-1

12 3 4

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与X9438WS24IT1相关器件

型号	品牌	获取价格	描述	数据表
X9438WS24T1	XICOR	获取价格	Digital Potentiometer, 2 Func, CMOS, PDSO24, PLASTIC, SOIC-24
X9438WV24	INTERSIL	获取价格	Dual Digitally Controlled Potentiometer (XDCP) with Operational Amplifier
X9438WV24-2.7	INTERSIL	获取价格	Dual Digitally Controlled Potentiometer (XDCP) with Operational Amplifier
X9438WV24-2.7	XICOR	获取价格	Digital Potentiometer, 2 Func, CMOS, PDSO24, PLASTIC, TSSOP-24
X9438WV24-2.7T1	XICOR	获取价格	Digital Potentiometer, 2 Func, CMOS, PDSO24, PLASTIC, TSSOP-24
X9438WV24I	INTERSIL	获取价格	Dual Digitally Controlled Potentiometer (XDCP) with Operational Amplifier
X9438WV24I-2.7	INTERSIL	获取价格	Dual Digitally Controlled Potentiometer (XDCP) with Operational Amplifier
X9438WV24I-2.7	XICOR	获取价格	Digital Potentiometer, 2 Func, CMOS, PDSO24, PLASTIC, TSSOP-24
X9438WV24I-2.7T1	XICOR	获取价格	Digital Potentiometer, 2 Func, CMOS, PDSO24, PLASTIC, TSSOP-24
X9438WV24T1	XICOR	获取价格	Digital Potentiometer, 2 Func, CMOS, PDSO24, PLASTIC, TSSOP-24

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