參數(shù)資料
型號(hào)： 9248YF-112-T
廠商： INTEGRATED DEVICE TECHNOLOGY INC
元件分類： 時(shí)鐘產(chǎn)生/分配
英文描述： PROC SPECIFIC CLOCK GENERATOR, PDSO48
封裝： 0.300 INCH, SSOP-48
文件頁(yè)數(shù)： 5/12頁(yè)
文件大?。?/td> 202K
代理商： 9248YF-112-T
2
ICS9248-112
0326C—09/18/03
General Description
Pin Configuration
Power Groups
GNDREF, VDDREF = REF0, X1, X2
GNDPCI , VDDPCI = PCICLK [9:0]
GNDSDR, VDDSDR = SDRAM [7:0], SDRAM_F,
supply for PLL core
GND3V66 , VDD3V66 = 3V66
GND48 , VDD48 = 48MHz, 24_48MHz,
VDDLAPIC = IOAPIC
GNDLCPU , VDDLCPU = CPUCLK [1:0]
The ICS9248-112 is a single chip clock solution for
designs using the 810/810E style chipset. It provides all
necessary clock signals 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-
112
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.
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