© 2001 California Micro Devices Corp. All rights reserved.
3/6/2001
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
215 Topaz Street, Milpitas, California 95035
RC Code
101/101A
330/470A
470/330A
470/470A
500/181A
750/500A
101/101A
330/470A
470/470A
470/330A
500/181A
750/500A
CALIFORNIA MICRO DEVICES
Pins
20
20
20
20
20
20
20
20
20
20
20
20
Package
SOICW
SOICW
SOICW
SOICW
SOICW
SOICW
QSOP
QSOP
QSOP
QSOP
QSOP
QSOP
Style
STANDARD PART ORDERING INFORMATION
20
1
AC Termination Network
SCHEMATIC CONFIGURATION
PRC202101K/101M/T
PRC202330K/470M/T
PRC202470K/330M/T
PRC202470K/470M/T
PRC202500K/181M/T
PRC202750K/500M/T
PRC212330K/470M/T
PRC212101K/101M/T
PRC212470K/470M/T
PRC212470K/330M/T
PRC212500K/181M/T
PRC212750K/500M/T
19
2
18
3
Tubes
Tel: (408) 263-3214
17
4
Ordering Part Number
16
5
15
6
Applications
• AC Terminator
• Low Pass Filter
• Power Supply Filtering
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.
14
7
PRC202101K/101M/R
PRC202330K/470M/R
PRC202470K/330M/R
PRC202470K/470M/R
PRC202500K/181M/R
PRC202750K/500M/R
PRC212330K/470M/R
PRC212101K/101M/R
PRC212470K/470M/R
PRC212470K/330M/R
PRC212500K/181M/R
PRC212750K/501M/R
13
8
Tape & Reel
Fax: (408) 263-7846
12
9
11
10
PRC202101K/101M
PRC202330K/470M
PRC202470K/330M
PRC202470K/470M
PRC202500K/181M
PRC202750K/500M
PRC212101K/101M
PRC212330K/470M
PRC212470K/470M
PRC212470K/330M
PRC212500K/181M
PRC212750K/501M
Part Marking
PRC202/212
www.calmicro.com
C1180600
1