Datasheet > PRC298750K/500M/R

PRC298750K/500M/R

更新时间： 2024-11-15 23:29:11

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Terminator

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PRC298750K/500M/R 数据手册

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CALIFORNIA MICRO DEVICES

PRC207/298/299

Clock Terminator and Local EMI/RFI Filter

Features

Applications

• Filters at source of emissions

• Clock termination

• Point of contact filtering

• Low pass filtering

• EMI/RFI filtering

• Stable resistor-capacitor network

• Ideal for high-speed logic

• Low lead inductance

• Reduces board space by 70% vs. 1206 discretes

and component count by more than 50%

Product Description

High speed microprocessors like Intel’s Pentium^®Pro,

DEC’s Alpha, Motorola’s 68K and PowerPC, Sun’s

SPARC, MIPs, and other RISC-based systems require

well-controlled and precise clock signals to maintain a

high performance synchronous system. However, very

fast edge rated clock signals exhibit transmission line

effects on the clock lines resulting in undershoot and

overshoot disturbances.

These networks are fabricated on a silicon substrate

using advanced thin film technology. They have low

parasitic inductance compared to discrete and conven-

tional thick film filters and provide effective AC termina-

tion and EMI/RFI noise suppression over a wide range of

frequencies.

Why thin film RC networks? The PRC207/298/299 is an

integrated RC network fabricated on a silicon substrate

using advanced thin film technology. This technology

insures a fixed time constant and does not create

additional skew on the clock lines. It offers very low

parasitic inductance compared to conventional discrete

thick film-based approaches and provides effective

termination at high frequencies.

CAMDs PRC207/298/299 SOT resistor-capacitor

integrated thin film networks are specifically designed to

eliminate transmission line effects on high speed clock

and data lines. They are effective in suppressing EMI/

RFI noise at I/O ports and can also be used as “distrib-

uted” AC terminators when filtered lines are dispersed

across the board.

SCHEMATIC CONFIGURATION

PRC207

PRC299

PRC298

Config. 1

Config. 2

Config. 3

STANDARD PART ORDERING INFORMATION

Package

Ordering Part Number

RC Code

Pins

Style

Bag

Tape & Reel

Part Marking

RC11

SOT-23

PRC207330K/470M/B

PRC207470K/470M/B

PRC207470K/330M/B

PRC207500K/680M/B

PRC207750K/500M/B

PRC207101K/101M/B

PRC207500K/181M/B

PRC207400K/500M/B

PRC207330K/470M/R

PRC207470K/470M/R

PRC207470K/330M/R

PRC207500K/680M/R

PRC207750K/500M/R

PRC207101K/101M/R

PRC207500K/181M/R

PRC207400K/500M/R

RC12

RC13

RC14

RC15

RC16

RC17

RC18

C1170600

1/23/2001 215 Topaz Street, Milpitas, California 95035

Tel: (408) 263-3214

Fax: (408) 263-7846

www.calmicro.com

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