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产品型号PRN10220W221的Datasheet PDF文件预览

CALIFORNIA MICRO DEVICES

PRN102/112

DUALTHÉVENINTERMINATION NETWORK

Features

Applications

• Stable resistor network

• SCSI termination

• 18 terminating lines/package

• Thévenin termination

• Saves board space and reduces assembly cost

Product Description

Why thin film resistor networks? A terminating resistor is

used to reduce or eliminate unwanted reflections on a

transmission line. It can perform this function only when

its resistance value matches the characteristic imped-

ance of the transmission line. The resistors used for

terminating the transmission lines should be noiseless,

stable and functional at high frequencies. Unlike thin

film-based resistor networks, conventional thick film

resistors used for terminating transmission lines are not

stable over temperature and time and impose system

performance limitations at very high frequencies.

Peripheral devices like disk drives, printers, and CD

ROMs are connected to host through a special bus

called SCSI (Small Computer System Interface). The fast

edge rated signals that are transmitted through the SCSI

cable generate ringing on the bus. This will slow down

communication between host and peripherals. The SCSI

standard recommends proper resistor (Thévenin)

termination at host and peripheral locations to eliminate

transmission line effects.

CAMDs PRN102/112 Dual Thévenin Termination

Networks offer high integration and performance in a

miniature QSOP or SOIC package, which saves critical

board area and provides manufacturing cost and

reliability efficiencies.

SCHEMATIC CONFIGURATION

19 18 17 16 15 14 13 12

STANDARD VALUES

STANDARD SPECIFICATIONS

TCR

250ppm

R1 (Ω)

R2 (Ω)

Code

220

330

221/331

Operating Temperature Range

Power Rating/Resistor

Storage Temperature

0°C to 70°C

100mW

–65°C to +150°C

1W, max.

NON-STANDARD VALUES

Package Power Rating

Resistance Range

170Ω to 660Ω

Resistance Range

110Ω to 440Ω

NON-STANDARD SPECIFICATIONS

Absolute Tolerance (R)

C1120600

7/14/2000 215 Topaz Street, Milpitas, California 95035

Tel: (408) 263-3214

Fax: (408) 263-7846

www.calmicro.com

PRN102/112

CALIFORNIA MICRO DEVICES

STANDARD PART ORDERING INFORMATION

Ordering Part Number

Package

R Code

221/331

Package

Style

Pins

Tubes

Tape & Reel

Part Marking

SOIC

PRN10220W221/331G/T

PRN112 221/331G/T

PRN10220W221/331G/R

PRN112 221/331G/R

PRN10220W221/331G

PRN112 221/331G

QSOP

NON-STANDARD PART ORDERING INFORMATION

PRN102 (Example)

XXX/XXX

Part Series

Value Code

R1 Code/R2 Code

Tolerance

J = 5%

G = 2%

F = 1%

PRN102W-SOIC Wide

PRN112-QSOP

California Micro Devices can develop a fully customized solution which embodies the configuration shown in this data

sheet or modified to suit specific application requirements. Very precise TCR, TCR tracking and resistor tolerances,

and resistor-to-resistor ratio matching can also be provided. A Non-Recurring Engineering (NRE) charge will apply for

all fully customized requirements and a minimum order/lot will be required.

Please direct your detailed circuit configuration and specification requirements to your local CAMD representative or

to the factory for a quotation.

215 Topaz Street, Milpitas, California 95035

Tel: (408) 263-3214

Fax: (408) 263-7846

型号:	PRN10220W221/331G/R
生命周期：	Obsolete
包装说明：	,
Reach Compliance Code：	unknown
风险等级：	5.84
其他特性：	DUAL TERMINATOR
元件功耗：	0.1 W
第一元件电阻：	220 Ω
制造商序列号：	PRN102
安装特点：	SURFACE MOUNT
网络类型：	TERMINATOR
元件数量：	2
功能数量：	18
端子数量：	20
最高工作温度：	70 °C
最低工作温度：
封装形状：	RECTANGULAR PACKAGE
包装方法：	TR
额定功率耗散 (P)：	1 W
电阻器类型：	ARRAY/NETWORK RESISTOR
第二/最后一个元素电阻：	330 Ω
子类别：	Array/Network Resistors
表面贴装：	YES
技术：	METAL GLAZE/THICK FILM
容差：	2%
Base Number Matches：	1

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