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HCF4521 Datasheet(PDF) 8 Page - STMicroelectronics |
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HCF4521 Datasheet(HTML) 8 Page - STMicroelectronics |
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8 / 12 page  Crystal Oscillator Circuit TYPICAL DATA FOR CRYSTAL OSCILLATOR CIRCUIT Characteri stic 500 kHz CIRCUIT 50 kHz CI RCUIT Un it Crystal Characteristics Resonant Frequency Equivalent Reistance, RS 500 1 50 6.2 kHz k Ω External Resistor/Capacitor Values RO CT CS 47 82 20 750 82 20 k Ω pF pF Frequency Stability Frequency Change as a Function of VDD (TA =25 oC) VDD Change from 5V to 10V VDD Change from 10V to 15V Frequency Change as a Function of Temperature (VDD =10 V) TA Change from -55 oCto 25 oC HCF4521B only Complete Oscillator * TA Change from 25 oCto 125 oC HCF4521B only Complete Oscillator * 6 2 -4 100 -2 -160 2 2 -2 120 -2 -560 ppm ppm ppm ppm ppm ppm * Complete oscillator includes crystal, capacitors and resistors. * Optional for low power operation. HCF4521 8/12 |
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Similar Description - HCF4521 |
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