PI6CVF857

更新时间： 2024-11-28 22:28:55

品牌	Logo	应用领域
百利通 - PERICOM		时钟驱动器动态存储器双倍数据速率
页数	文件大小	规格书
14页	303K
描述
1:10 PLL Clock Driver for 2.5V DDR-SDRAM Memory

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PI6CVF857 数据手册

PI6CVF857

1:10 PLL Clock Driver for

2.5V DDR-SDRAM Memory

ProductFeatures

ProductDescription

• Operating Frequency up to 220 MHz for PC3200 Registered

PI6CVF857PLLclockdeviceisdevelopedforregisteredDDRDIMM

applications. The device is a zero-delay buffer that distributes a

differential clock input pair (CLK, CLK) to ten differential pairs of

clockoutputs(Y[0:9],Y[0:9]),andonedifferentialpairfeedbackclock

outputs(FBOUT,FBOUT). Theclockoutputsarecontrolledbythe

inputclocks(CLK,CLK),thefeedbackclocks(FBIN,FBIN),the2.5V

DIMM applications

• Distributes one differential clock input pair to ten differential

clock output pairs

• Inputs(CLK,CLK)and(FBIN,FBIN)

• Input PWRDWN: LVCMOS

• Outputs (Yx,Yx),(FBOUT,FBOUT)

• Externalfeedbackpins(FBIN,FBIN)areusedto

synchronize the outputs to the clock input

• Operatesat2.5VforPC1600,PC2100,PC2700,

and2.6VforPC3200

LVCMOSinput(PWRDWN),andtheAnalogPowerinput(AV ).

When input PWRDWN is low while power is applied, the input

receiversaredisabled,thePLListurnedoff,andthedifferentialclock

outputs are 3-stated. When the AV is strapped low, the PLL is

turned off and bypassed for test purposes.

When the input frequency falls below a suggested detection fre-

quency that is below the operating frequency of the PLL, the device

willenteralowpowermode.Aninputfrequencydetectioncircuitwill

detectthelowfrequencyconditionandperformthesamelowpower

features as when the PWRDWN input is low.

ThePLLinthePI6CVF857clockdriverusestheinputclocks(CLK,

CLK)andthefeedbackclocks(FBIN,FBIN)toprovidehigh-perfor-

mance,low-skew,low-jitteroutputdifferentialclocks(Y[0:9],Y[0:9]).

The PI6CVF857 is also able to track Spread Spectrum Clocking for

reducedEMI.

• Packaging (Pb-free & Green available, select packages):

–48-pinTSSOP

–40-pinTQFN

–56-ballVFBGA

BlockDiagram

CLK

PLL

FBIN

Powerdown

and Test

Logic

PWRDWN

FBOUT

PS8683B

10/17/03

12 3 4 5 6 7...14

中文翻译

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与PI6CVF857相关器件

型号	品牌	获取价格	描述	数据表
PI6CVF857A	PERICOM	获取价格	1:10 PLL Clock Driver for 2.5V DDR-SDRAM Memory
PI6CVF857AE	PERICOM	获取价格	1:10 PLL Clock Driver for 2.5V DDR-SDRAM Memory
PI6CVF857NF	PERICOM	获取价格	1:10 PLL Clock Driver for 2.5V DDR-SDRAM Memory
PI6CVF857NFE	PERICOM	获取价格	PLL Based Clock Driver, 6C Series, 10 True Output(s), 0 Inverted Output(s), PBGA56, VFBGA-
PI6CVF857ZBE	PERICOM	获取价格	PLL Based Clock Driver, 6C Series, 10 True Output(s), 0 Inverted Output(s), MO-220VJJD-2,
PI6CVF857ZD	PERICOM	获取价格	PLL Based Clock Driver, 6C Series, 10 True Output(s), 0 Inverted Output(s), TQFN-40
PI6CVF857ZDE	PERICOM	获取价格	1:10 PLL Clock Driver for 2.5V DDR-SDRAM Memory
PI6CX100-00	PERICOM	获取价格	19.44 to 40 MHz, 3.3V, VCXO for General Purpose Applications
PI6CX100-00WE	PERICOM	获取价格	19.44 to 40 MHz, 3.3V, VCXO for General Purpose Applications
PI6CX100-27	PERICOM	获取价格	27 MHz 3.3V VCXO for Set-Top Box Applications

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