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Note:
The formulas are derived from a Worksheet (Lotus 1-2-3) by Phillips™. It is highly recommended that you build a prototype to verify the results !
www.changpuak.ch\ electronics\ calc_03.php - December 09 2011 21:04:08

74HC/HCT4046A : VCO Calculator



4046

R1 [kΩ]  

    3 kΩ < R1 < 300 kΩ

R2 [kΩ]  

    3 kΩ < R2 < 300 kΩ

C1 [pF]  

    40 pF < C

FREQ.MIN [kHz]

    VTUN = 1.1 V

FREQ.TYP [kHz]

    VTUN = 2.5 V

FREQ.MAX [kHz]

    VTUN    = 3.9 V

KVCO

    kHz/V
   

 

A Supply Voltage of 5 V is assumed. Changes affects the Frequencies !

niet



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