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| 74HC4046A Datasheet, PDF (29/34 Pages) NXP Semiconductors – Phase-locked-loop with VCO | |||
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Philips Semiconductors
Phase-locked-loop with VCO
Product speciï¬cation
74HC/HCT4046A
To obtain optimum VCO performance, C1 must be as small as possible but larger than 100 pF.
Interpolation for various values of R2 can be easily calculated because a constant R2C1 product will produce almost the same VCO output frequency.
Fig.30 Typical value of frequency offset as a function of C1: R1 = â; VVCOIN = 1/2 VCC; INH = GND; Tamb = 25 °C.
1997 Nov 25
29
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