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PRC298400K/500M/R PDF预览

PRC298400K/500M/R

更新时间: 2024-11-15 23:29:11
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Terminator

PRC298400K/500M/R 数据手册

 浏览型号PRC298400K/500M/R的Datasheet PDF文件第2页 
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  
2
PRC299  
PRC298  
3
2
2
C
R
C
R
C
C
R
C
R
C
R
R
1
3
1
3
1
4
Config. 1  
Config. 2  
Config. 3  
STANDARD PART ORDERING INFORMATION  
Package  
Ordering Part Number  
RC Code  
Pins  
Style  
Bag  
Tape & Reel  
Part Marking  
RC11  
11  
12  
13  
14  
15  
16  
17  
18  
3
3
3
3
3
3
3
3
SOT-23  
SOT-23  
SOT-23  
SOT-23  
SOT-23  
SOT-23  
SOT-23  
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  
© 2000 California Micro Devices Corp. All rights reserved.  
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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