74hct4046a NXP Semiconductors, 74hct4046a Datasheet - Page 24

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

Philips Semiconductors
1997 Nov 25
Phase-locked-loop with VCO
Fig.20 Definition of VCO frequency linearity:
- - - -C1 = 1 F
Fig.22 Power dissipation
C1 = 40 pF
for VCO linearity
versus the value of R1:
C
R2 = ;
V
T
f‘
V = 0.5 V over the V
VCOIN
amb
L
linearity
0
= 50 pF;
=
= 25 C.
f
-------------- -
1
= 1/2 V
+
2
f
=
2
f‘
--------------- -
0
CC
f‘
–
0
;
f
0
CC
100%
range:
- - - - C1 = 1 F
Fig.23 Power dissipation
C1 = 40 pF
versus the value of R2:
C
R1 = ;
V
T
amb
VCOIN
L
= 50 pF;
= 25 C.
24
= GND = 0 V;
Fig.21 Frequency linearity as a function of R1, C1
and V
CC
: R2 =
Fig.24 Typical dc power
and V = 0.5 V.
74HC/HCT4046A
dissipation of
demodulator sections
as a function of R
R1 = R2 = ;
T
V
amb
VCOIN
= 25 C;
Product specification
= 1/2 V
CC
.
S
: