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ICS9248-141 Datasheet(PDF) 3 Page - Integrated Circuit Systems

Part # ICS9248-141
Description  AMD - K7??System Clock Chip
Download  14 Pages
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Manufacturer  ICST [Integrated Circuit Systems]
Direct Link  http://www.icst.com
Logo ICST - Integrated Circuit Systems

ICS9248-141 Datasheet(HTML) 3 Page - Integrated Circuit Systems

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ICS9248-141
Third party brands and names are the property of their respective owners.
General Description
The ICS9248-141 is a main clock synthesizer chip for AMD-K7 based systems with VIA style chipset. This provides all clocks
required for such a system.
Spread spectrum may be enabled through I
2C programming. Spread spectrum typically reduces system EMI by 8dB to 10dB.
This simplifies EMI qualification without resorting to board design iterations or costly shielding. The ICS9248-141
employs a proprietary closed loop design, which tightly controls the percentage of spreading over process and temperature
variations.
Serial programming I
2C interface allows changing functions, stop clock programming and frequency selection.
Mode Pin - Power Management Input Control
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Power Groups
VDD48 = 48MHz, PLL2
VDDA = VDD for Core PLL
VDDREF = REF, Xtal
VDDPCI = PCI
VDDSDR = SDRAM


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