ics9248-98 Integrated Device Technology, ics9248-98 Datasheet - Page 3

• Manufacturer Part Number: ics9248-98
• Description: Frequency Generator & Integrated Buffers For Celeron & Pii/iii
• Manufacturer: Integrated Device Technology

General Description
The ICS9248-98 is a single chip clock solution for Desktop
designs. It provides all necessary clock signals for such
a system.
Spread spectrum may be enabled through I
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-
98
employs a proprietary closed loop design, which tightly
controls the percentage of spreading over process and
temperature variations.
Serial programming I
stop clock programming and frequency selection.
Mode Pin - Power Management Input Control
0313F—08/04/04
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C interface allows changing functions,
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Power Groups
VDD1 = REF, X1, X2
VDD2 = PCICLK_F, PCICLK
VDD3 = SDRAM, supply for PLL core
VDD4 =
VDDL1 = IOAPIC
VDDL2 = CPUCLK 1, CPUCLK_F
24MHz, 48MHz
ICS9248-98