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ICS9250-16 датащи(PDF) 2 Page - Integrated Circuit Systems

номер детали ICS9250-16
подробное описание детали  Frequency Generator & Integrated Buffers for Celeron & PII/III?
PDF  17 Pages
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производитель  ICST [Integrated Circuit Systems]
домашняя страница  http://www.icst.com
Logo ICST - Integrated Circuit Systems

ICS9250-16 датащи(HTML) 2 Page - Integrated Circuit Systems

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2
ICS9250-16
The ICS9250-16 is a single chip clock solution for 810/810E type
chipset. It provides all necessary clock signals for such
a system.
Spread spectrum may be enabled through I2C programming. Spread
spectrum typically reduces EMI by 8dB to 10 dB. This simplifies
EMI qualification without resorting to board design iterations or
costly shielding. The ICS9250-16 employs a proprietary closed
loop design, which tightly controls the percentage of spreading
over process and temperature variations.
General Description
Pin Configuration
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Power Groups
VDD0, GND0 = REF & Crystal
VDD1, GND1 = 3V66 (0:1)
VDD2, GND2 = PCICLK(0:7)
VDD3, GND3 = PLL core
VDD4, GND4 = 48MHz (0:1)
VDD5, GND5 = SDRAM_F, SDRAM (0:7)
VDDL0, GNDL0 = CPUCLK (0:2)
VDDL1, GNDL1 = IOAPIC (0:1)



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