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Analog Comparator - Freescale

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2. What crystal should be used?<br />

OSC2/<br />

XTAL<br />

OSC1/<br />

EXTAL<br />

MCU<br />

CL1<br />

RF<br />

RS<br />

Y1<br />

CL1 and CL2<br />

are Load<br />

Capacitors<br />

CL2<br />

<strong>Freescale</strong> and the <strong>Freescale</strong> logo are trademarks of <strong>Freescale</strong> Semiconductor, Inc. All other product or service names are<br />

the property of their respective owners. © <strong>Freescale</strong> Semiconductor, Inc. 2007-2008. 35<br />

Crystal Components<br />

CL is the Load Capacitance of the crystal<br />

CL1 and CL2 are determined by the<br />

following formula<br />

CL1 * CL2<br />

CL = + CS<br />

CL1 + CL2<br />

CS is stray capacitance<br />

TM

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