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PRC299 PDF预览

PRC299

更新时间: 2024-11-15 22:44:23
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描述
CLOCK TERMINATOR

PRC299 数据手册

 浏览型号PRC299的Datasheet PDF文件第2页浏览型号PRC299的Datasheet PDF文件第3页 
CALIFORNIA MICRO DEVICES  
PRC298/299  
Clock Terminator  
Features  
Application  
• Stable resistor-capacitor network  
• Ideal for high-speed logic  
• Low lead inductance  
• Clock termination  
• Reduces board space compared to discretes  
• SOT Packages  
Product Description  
High speed microprocessors like Intel’s Pentium®, 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.  
Why thin film RC networks? The PRC298/299 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.  
CAMD’s PRC298/299 SOT resistor-capacitor integrated  
thin film networks are specifically designed to eliminate  
transmission line effects on high speed clock and data  
lines.  
SCHEMATIC CONFIGURATIONS  
2
3
R
C
R
C
2
C
R
C
R
C
R
1
3
1
PRC298  
(SOT-143)  
4
PRC299  
(SOT-23)  
© 2001 California Micro Devices Corp. All rights reserved.  
C1730201  
215 Topaz Street, Milpitas, California 95035  
Tel: (408) 263-3214  
Fax: (408) 263-7846  
www.calmicro.com  
2/28/2001  
1