PRC207500K680MB datasheet(1/2 Pages) CALMIRCO

Part #	PRC207500K680MB

Description	AC TERMINATION NETWORK

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Manufacturer	CALMIRCO [California Micro Devices Corp]

Direct Link	http://www.calmicro.com

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7/18/2000

1

PRC202/212

CALIFORNIA MICRO DEVICES

215 Topaz Street, Milpitas, California 95035

Tel: (408) 263-3214

Fax: (408) 263-7846

www.calmicro.com

AC Termination Network

Features

• Stable resistor-capacitor network

• No signal delays

• 18 terminating lines/package

• Saves board space and component cost

Product Description

CAMD’s PRC202/212 Integrated Resistor-Capacitor

Termination Network is designed to eliminate transmis-

sion line effects on high speed data lines. This thin film

network can support (terminate) 18 data lines, and

requires no DC power. The small surface mount pack-

ages improve board yields and reliability, minimize

space and routing problems on the board, and reduce

assembly costs. The PRC202/212 is a space efficient

and cost effective replacement for conventional MLCC

surface mount chip resistors and capacitors.

Why thin film RC networks? A terminating RC is used to

reduce or eliminate reflections on a transmission line. It

can perform this function only when its impedance value

Applications

• AC Terminator

• Low Pass Filter

• Power Supply Filtering

C1180600

SCHEMATIC CONFIGURATION

matches the characteristic impedance of the transmis-

sion line.

Passive components affect the electrical performance of

electronic systems. In reality, every resistor has some

parasitic series inductance and a parasitic capacitance;

and every capacitor has both series resistance and

inductance. At low speeds, these parasitics do not affect

the performance of resistors and capacitors. However, at

higher speeds, these parasitics cause mismatch in a

termination. To prevent these problems in high speed

digital designs, a designer must take special care in

selecting passive components or networks.

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