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PI6C48535-11BLIE Datasheet(PDF) 2 Page - Pericom Semiconductor Corporation |
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PI6C48535-11BLIE Datasheet(HTML) 2 Page - Pericom Semiconductor Corporation |
2 / 5 page PI6C48535-11B 3.3V Low Jitter 1-to-4 Crystal/LVCMOS to LVPECL Fanout Buffer 2 www.pericom.com PI6C48535-11B Rev A 06/01/12 Pin Description Name Pin # Type Description VEE 1 P ConnecttoNegativepowersupply CLK_EN 2 I_PU Synchronizingclockenable.Whenhigh,clockoutputsfollowclockinput.Whenlow,Qx outputsareforcedlow,nQxoutputsareforcedhigh.LVCMOS/LVTTLlevelwith50KΩ pullup. CLK_SEL 3 I_PD Clockselectinput.Whenhigh,selectsXtal(Xtal1,Xtal2)inputs.Whenlow,selectsCLK input.LVCMOS/LVTTLlevelwith50KΩpulldown. CLK 4 I_PD LVCMOS/LVTTLclockinput Xtal1, Xtal2 6,7 Crystalinputandoutput NC 5,8,9 Nointernalconnection. VDD 10,13, 18 P Connectto3.3V Q3,nQ3 11,12 O Differentialoutputpair,LVPECLinterfacelevel. Q2,nQ2 14,15 O Differentialoutputpair,LVPECLinterfacelevel. Q1,nQ1 16,17 O Differentialoutputpair,LVPECLinterfacelevel. Q0,nQ0 19,20 O Differentialoutputpair,LVPECLinterfacelevel. Notes: 1. I=Input,O=Output,P=Powersupplyconnection,I_PD=Inputwithpulldown,I_PU=Inputwithpullup Pin Characteristics Symbol Parameter Conditions Min. Typ. Max. Units CIN InputCapacitance 4 pF R_pullup InputPullupResistance 50 KΩ R_pulldown InputPulldownResistance 50 KΩ Control Input Function Table Inputs Outputs CLK_EN CLK_SEL Selected Source Q0:Q3 nQ0:nQ3 0 0 CLK Diasbled:Low Diasbled:High 0 1 Xtal1,Xtal2 Disabled:Low Disabled:High 1 0 CLK Enabled Enabled 1 1 Xtal1,Xtal2 Enabled Enabled Notes: 1. AfterCLK_ENswitches,theclockoutputsaredisabledorenabledfollowingarisingandfallinginputclockedgeasshowbelow. 12-0203 |
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