ics9248-172 ETC-unknow, ics9248-172 Datasheet - Page 3

• Manufacturer Part Number: ics9248-172
• Description: Single Chip, System Clock Piii/1651 Chipset 147mhz; Sdram Clocks
• Manufacturer: ETC-unknow

Mode Pin - Power Management Input Control
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General Description
The ICS9248-172 is a main clock synthesizer chip for PII/III based systems with ALI 1651 style chipset. This provides all
clocks required for such a system.
Spread spectrum may be enabled through I
This simplifies EMI qualification without resorting to board design iterations or costly shielding. The ICS9248-172
employs a proprietary closed loop design, which tightly controls the percentage of spreading over process and temperature
variations.
Serial programming I
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0
1
P
n I
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C interface allows changing functions, stop clock programming and frequency selection.
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5
2
C programming. Spread spectrum typically reduces system EMI by 8dB to 10dB.
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C
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u p
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Advance Information
P
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ICS9248-172
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