74hct4046a NXP Semiconductors, 74hct4046a Datasheet - Page 6

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

Philips Semiconductors
1997 Nov 25
Phase-locked-loop with VCO
R2
R1
12
11
R 2
R 1
INH
C1 A
5
6
C1
C1 B
VCO
7
V CO OUT
DEM OUT
10
R S
(a)
4
COMP IN
VCO IN
9
3
(a)
14
SIG IN
COMPARATOR
COMPARATOR
COMPARATOR
PHASE
PHASE
PHASE
1
2
3
Fig.4 Functional diagram.
4046A
Fig.5 Logic diagram.
PCP OUT 1
PC1 OUT 2
PC2 OUT 13
PC3 OUT 15
6
R3
C2
R4
identical to 4046A
74HC/HCT4046A
(b)
C
COMPARATOR
(b)
CLD
DETECTOR
C LD
PHASE
LOCK
2
Product specification
15
7046A
PC2 OUT
MGA847
LD
13
1