AV9248F-163 Просмотр технического описания (PDF) - Integrated Circuit Systems

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AV9248F-163

AMD - K7
™ System Clock Chip

Integrated Circuit Systems 

ICS9248-163

Preliminary Product Preview

General Description

The ICS9248-163 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 I2C 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 ICS9248-163

employs a proprietary closed loop design, which tightly controls the percentage of spreading over process and temperature

variations.

Serial programming I2C interface allows changing functions, stop clock programming and frequency selection.

Mode Pin - Power Management Input Control

MODE, Pin 7

(Latched Input)

0

1

Pin 2

CPU_STOP#

(Input)

REF0

(Output)

Power Groups

VDD48 = 48MHz, PLL2

VDDA = VDD for Core PLL, CPU

VDDREF = REF, Xtal

Third party brands and names are the property of their respective owners.

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