MC14046 Motorola, MC14046 Datasheet

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MC14046

Manufacturer Part Number
MC14046
Description
Phase Locked Loop
Manufacturer
Motorola
Datasheet

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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Phase Locked Loop
voltage–controlled oscillator (VCO), source follower, and zener diode. The
comparators have two common signal inputs, PCA in and PCB in . Input PCA in
can be used directly coupled to large voltage signals, or indirectly coupled
(with a series capacitor) to small voltage signals. The self–bias circuit
adjusts small voltage signals in the linear region of the amplifier. Phase
comparator 1 (an exclusive OR gate) provides a digital error signal PC1 out ,
and maintains 90 phase shift at the center frequency between PCA in and
PCB in signals (both at 50% duty cycle). Phase comparator 2 (with leading
edge sensing logic) provides digital error signals, PC2 out and LD, and
maintains a 0 phase shift between PCA in and PCB in signals (duty cycle is
immaterial). The linear VCO produces an output signal VCO out whose
frequency is determined by the voltage of input VCO in and the capacitor and
resistors connected to pins C1 A , C1 B , R1, and R2. The source–follower
output SF out with an external resistor is used where the VCO in signal is
needed but no loading can be tolerated. The inhibit input Inh, when high,
disables the VCO and source follower to minimize standby power
consumption. The zener diode can be used to assist in power supply
regulation.
quency synthesis and multiplication, frequency discrimination, tone decod-
ing, data synchronization and conditioning, voltage–to–frequency
conversion and motor speed control.
REV 3
1/94
V DD = PIN 16
V SS = PIN 8
MOTOROLA CMOS LOGIC DATA
The MC14046B phase locked loop contains two phase comparators, a
Applications include FM and FSK modulation and demodulation, fre-
Motorola, Inc. 1995
Buffered Outputs Compatible with MHTL and Low–Power TTL
Diode Protection on All Inputs
Supply Voltage Range = 3.0 to 18 V
Pin–for–Pin Replacement for CD4046B
Phase Comparator 1 is an Exclusive Or Gate and is Duty Cycle Limited
Phase Comparator 2 switches on Rising Edges and is not Duty Cycle
Limited
VCO in
PCA in
PCB in
INH
14
3
9
5
SELF BIAS
CIRCUIT
V SS
BLOCK DIAGRAM
SOURCE FOLLOWER
COMPARATOR 1
COMPARATOR 2
CONTROLLED
OSCILLATOR
VOLTAGE
PHASE
PHASE
(VCO)
2 PC1 out
13 PC2 out
1 LD
4 VCO out
11 R1
12 R2
6 C1 A
7 C1 B
10 SF out
15 ZENER
T A = – 55 to 125 C for all packages.
ORDERING INFORMATION
MC14XXXBCP
MC14XXXBCL
MC14XXXBDW
VCO out
PC1 out
MC14046B
PCB in
C1 A
C1 B
V SS
INH
LD
PIN ASSIGNMENT
1
2
3
4
5
6
7
8
16
15
14
13
12
10
11
9
DW SUFFIX
CASE 751G
CERAMIC
CASE 620
CASE 648
L SUFFIX
P SUFFIX
PLASTIC
Plastic
Ceramic
SOIC
V DD
ZENER
PCA in
PC2 out
R2
R1
SF out
VCO in
SOIC
MC14046B
1

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MC14046 Summary of contents

Page 1

... MOTOROLA SEMICONDUCTOR TECHNICAL DATA Phase Locked Loop The MC14046B phase locked loop contains two phase comparators, a voltage–controlled oscillator (VCO), source follower, and zener diode. The comparators have two common signal inputs, PCA in and PCB in . Input PCA in can be used directly coupled to large voltage signals, or indirectly coupled (with a series capacitor) to small voltage signals. The self– ...

Page 2

... VCO in – 100% Duty Cycle of PCA – 100 MC14046B 2 Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î ...

Page 3

... V Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î — 100 — Î Î Î Î Î Î Î Î Î Î Î Î MC14046B 3 ...

Page 4

... MC14046B 4 PHASE COMPARATOR ...

Page 5

... K K VCO K K VCO 0 VCO K K VCO ) + F( Phase Comparator MC14046B ) 5 ...

Page 6

... 0.25 (0.010 –A– 0.25 (0.010) M MC14046B 6 OUTLINE DIMENSIONS L SUFFIX CERAMIC DIP PACKAGE CASE 620–10 ISSUE V –B– 0.25 (0.010 SUFFIX PLASTIC DIP PACKAGE CASE 648–08 ...

Page 7

... IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. MILLIMETERS INCHES DIM MIN MAX MIN MAX A 9.80 10.00 0.386 0.393 B 3.80 4.00 0.150 0.157 C 1.35 1.75 0.054 0.068 D 0.35 0.49 0.014 0.019 F 0.40 1.25 0.016 0.049 G 1.27 BSC 0.050 BSC J 0.19 0.25 0.008 0.009 K 0.10 0.25 0.004 0.009 5.80 6.20 0.229 0.244 R 0.25 0.50 0.010 0.019 are registered MC14046B MC14046B/D 7 ...

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