PRN103/153/125/155
2000 California Micro Devices Corp. All rights reserved.
1/9/2001
1
CALIFORNIA MICRO DEVICES
215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com
Thin Film Differential Terminator Resistor Network
Features
Thin film on silicon
Tolerance 2%
Wide body surface mount SOIC and DIP
configuration
Drop-in replacement to thick film networks
Also available in custom schematic and
configuration
C1160600
SCHEMATIC CONFIGURATIONS
Applications
Differential SCSI Termination
SCSI Host Adapter Cards and
Other SCSI Devices
Product Description
The PRN103/153/125/155 is a high performance
Integrated Passive Device (IPD) designed to eliminate
transmission line effects on high-speed data lines on a
special bus called SCSI (Small Computer Systems
Interface). SCSI is a bus interface covered by an ANSI
standard that allows for an input/output bus to connect
small computers with a variety of peripheral devices.
Proper resistor termination requires a resistor whose
value closely matches the characteristic impedance of
the transmission line. Thin film networks offer significant
Schematic A -- PRN103/153
Schematic B -- PRN125/155
advantages over conventional thick film processes in
terms of tighter absolute and ratio tolerances, greater
stability, lower noise, and Temperature Coefficient of
Resistance (TCR). Furthermore, they offer superior high
frequency performance with minimal parasitic induc-
tance and capacitance. Integrated thin film networks
also offer the benefits of board space savings, reduced
assembly costs, and increased reliability with fewer
components.
PRN103/153/125/155
2000 California Micro Devices Corp. All rights reserved.
1/9/2001
215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com
2
CALIFORNIA MICRO DEVICES
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PRN103/153/125/155
2000 California Micro Devices Corp. All rights reserved.
1/9/2001
3
CALIFORNIA MICRO DEVICES
215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com
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