参数资料
型号: MK1491-06SLF
元件分类: 时钟产生/分配
英文描述: 49.152 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO28
封装: 0.150 INCH, LEAD FREE, MO-153, SOIC-28
文件页数: 1/10页
文件大小: 215K
代理商: MK1491-06SLF
MK1491-06
MDS 1491-06 J
1
Revision 110204
Integrated Circuit Systems, Inc.
525 Race Street, San Jose, CA 95126 tel (408) 297-1201 www.icst.com
AMD Geode Clock Source
Description
The MK1491-06 is a low-cost, low-jitter,
high-performance clock synthesizer for AMD’s
Geode-based computer and portable appliance
applications. Using patented analog Phased-Locked
Loop (PLL) techniques, the device accepts a 14.318
MHz crystal input to produce multiple output clocks. It
provides selectable PCI local bus and AC97 audio
clocks, 24 MHz and 48 MHz clocks for Super I/O and
USB, as well as multiple Reference outputs.
The device has multiple power-down modes to reduce
power consumption.
Features
Packaged in 28-pin SOIC or in 28-pin SSOP
Available in Pb (lead) free
Provides all critical timing for the AMD Geode
companion chip
Four PCI clocks
Selectable PCIF on up to 2 outputs
Early PCI clock selectability
Up to 4 Reference clocks
48 MHz USB and 24MHz SIO support
AC97 audio clock
Multiple power down modes
Low EMI Enable pin reduces EMI radiation on PCI
clocks (patented)
Operating voltage of 3.3 V ±5%
Block Diagram
Crystal
Oscillator
Fixed
Clocks
Audio
Clock
PCI
Clocks
MUX
PCI Frequency Select
Low EMI Enable
PCIF Function Enable
Early PCI Enable
SLOW#
PCISTP#
PWRDWN#
Audio Select
VDD
GND
2
5
6
3
PCI
EPCI/PCI
48 MHz
14.318 MHz or
24 MHz
14.318 MHz
16.394 MHz or
24.576 MHz or
49.152 MHz
14.31818 MHz
crystal
XI
XO
14.3M/24M Select
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相关代理商/技术参数
参数描述
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