參數(shù)資料
型號: 557G-05ALF
英文描述: Quad Differential PCI-Express Clock Source
中文描述: 四路差分個PCI - Express時鐘源
文件頁數(shù): 1/12頁
文件大小: 207K
代理商: 557G-05ALF
ICS557-05A
MDS 557-05A E
1
Revision 011606
Integrated Circuit Systems, Inc.
525 Race Street, San Jose, CA 95126
tel (408) 297-1201
www.icst.com
Quad Differential PCI-Express Clock Source
Description
The ICS557-05A is a spread-spectrum clock generator
that supports PCI-Express requirements. It is used in
PC or embedded systems to substantially reduce
electro-magnetic interference (EMI). The device
provides four differential HCSL or LVDS high-frequency
outputs with spread spectrum capability. The output
frequency and spread type are selectable using
external pins.
Features
Packaged in 20-pin TSSOP
Available in Pb (lead) free package
Supports PCI-Express applications
Four differential spread spectrum clock outputs
Spread spectrum for EMI reduction
Uses external 25 MHz clock or crystal input
Power down pin turns off chip
OE control tri-states outputs
Spread and frequency selection via external pins
Spread Bypass option available
Industrial temperature range available
Block Diagram
Spread
Spectrum/
Output
clock
selection
CLKOUTA
CLKOUTA
CLKOUTB
CLKOUTB
Rr(IREF)
PLL Clock
Synthesis
3
GND
VDD
Clock
Oscillator
X1
SEL[2:0]
Spread
Spectrum
Circuitry
2
2
CLKOUTD
CLKOUTD
X2
25 MHz
crystal or
clock
OE
PD
Optional tuning crystal
capacitors
CLKOUTC
CLKOUTC
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參數(shù)描述
557G-05ALFT 功能描述:時鐘發(fā)生器及支持產(chǎn)品 PCI-EXPRESS CLOCK SOURCE RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56
557G-06LF 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 PCI-EXPRESS CLOCK MUX (2:4) RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量(輸入/輸出):2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
557G-06LFT 功能描述:時鐘發(fā)生器及支持產(chǎn)品 PCI-EXPRESS CLOCK MUX (2:4) RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56
557G-08LF 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 PCI-EXPRESS CLOCK MUX (2:1) RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量(輸入/輸出):2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
557G-08LFT 功能描述:時鐘驅(qū)動器及分配 PCI-EXPRESS CLOCK MUX (2:1) RoHS:否 制造商:Micrel 乘法/除法因子:1:4 輸出類型:Differential 最大輸出頻率:4.2 GHz 電源電壓-最大: 電源電壓-最小:5 V 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-8 封裝:Reel