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PI6CX201ALE Datasheet(PDF) 2 Page - Pericom Semiconductor Corporation

Part # PI6CX201ALE
Description  25MHz Jitter Attenuator
PDF  5 Pages
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Manufacturer  PERICOM [Pericom Semiconductor Corporation]
Direct Link  http://www.pericom.com
Logo PERICOM - Pericom Semiconductor Corporation

PI6CX201ALE Datasheet(HTML) 2 Page - Pericom Semiconductor Corporation

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PI6CX201A
Rev. C
01/03/2012
PI6CX201A
25MHz Jitter Attenuator
Pin Descriptions for 20-pin TSSOP Package
Pin Name
Type
Pin No
Description
XI
I
1
Crystalinputpin
VC
I
2
VCXOcontrolvoltageinput
LF
I
4
Loopfilterpinforexternalloopfilterconnection
AGND
PWR
3
Analogground
S0,S1,S2
I
5,6,7
LVCMOSselectionpinsforinternalCLK_OUT2divider,Pins
haveinternalpullupresistor
REF_CLK
I
11
LVCMOSinputclocksignaltophasedetector
FB_CLK
I
12
LVCMOSfeedbackclocksignaltophasedetector
DGND
PWR
9,13,18
Digitalground
DVDD
PWR
10,14
Digitalpower
CLK_OUT2
O
15
LVCMOSoutputclockoftheinternalVCXOwithdivider
controlledbyS0andS1
LD
O
16
LVCMOSlockdetectoutput,LDoutputislogic‘0’when
REF_CLKxisgreaterthan1MHz,andphasedifferencebe-
tweenREF_CLKxandFB_CLKismorethan2nsfor8con-
secutiveclockpulses.Theclockpulsefrequencyisequalto
thecrystalfrequency.
CLK_OUT1
O
17
LVCMOSoutputclockoftheinternalVCXO
AVDD
PWR
19
Analogpower
X2
O
20
Crystaloutputpin
FREE_RUN
I
8
WhenFREE_RUNislogiclow,chipisin"freerun"mode.
Theoutputwillremainfixedatafixedfrequencywithupto
a±100ppmoffsetfromthenominal25MHz.LogicHIGHis
normalmode,withoutputlockedtotheinput.Internalpull-up.
Frequency Selection Table
Input Frequency
S0
S1
S2
Output Frequency
25MHz
1
0
1
25MHz
12.5MHz
0
0
1
25MHz
33.33MHz
0
1
1
25MHz
66.67MHz
1
1
1
25MHz
12-0150



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