74hct4046a NXP Semiconductors, 74hct4046a Datasheet - Page 23

• Manufacturer Part Number: 74hct4046a
• Description: Phase-locked-loop With Vco
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1997 Nov 25
Phase-locked-loop with VCO
To obtain optimum temperature stability, C1 must be as small as possible but larger than 100 pF.
Fig.19 Graphs showing VCO frequency (f
(a) R
(c) R
C
1
1
C
= 3 k ;
= 40 pF
1
1
= 300 k ;
= 40 pF
VCO
) as a function of the VCO input voltage (V
23
(d) R
C
(b) R
1
1
= 300 k ;
= 100 nF
C
1
1
74HC/HCT4046A
= 3 k ;
= 100 nF
Product specification
VCOIN
).