MC14046B
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 and
in
PCB . Input PCA can be used directly coupled to large voltage
in
in
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)
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MARKING
provides a digital error signal PC1 , and maintains 90° phase shift at
out
DIAGRAMS
the center frequency between PCA and PCB signals (both at 50%
in
in
16
1
duty cycle). Phase comparator 2 (with leading edge sensing logic)
provides digital error signals, PC2 and LD, and maintains a 0°
PDIP−16
P SUFFIX
CASE 648
MC14046BCP
AWLYYWWG
out
phase shift between PCA and PCB signals (duty cycle is
in
in
immaterial). The linear VCO produces an output signal VCO
out
whose frequency is determined by the voltage of input VCO and the
in
16
capacitor and resistors connected to pins C1 , C1 , R1, and R2. The
A
B
source−follower output SF with an external resistor is used where
SOIC−16
DW SUFFIX
CASE 751G
out
14046BG
AWLYYWW
the VCO signal is needed but no loading can be tolerated. The inhibit
in
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.
1
Applications include FM and FSK modulation and demodulation,
frequency synthesis and multiplication, frequency discrimination,
tone decoding, data synchronization and conditioning,
voltage−to−frequency conversion and motor speed control.
16
SOEIAJ−16
F SUFFIX
CASE 966
MC14046B
ALYWG
Features
1
• Buffered Outputs Compatible with MHTL and Low−Power TTL
• Diode Protection on All Inputs
• Supply Voltage Range = 3.0 to 18 V
A
WL, L
YY, Y
= Assembly Location
= Wafer Lot
= Year
• 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
WW, W = Work Week
G
= Pb−Free Indicator
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 4 of this data sheet.
• Pb−Free Packages are Available*
MAXIMUM RATINGS (Voltages Referenced to V
)
SS
Symbol
Parameter
Value
−0.5 to +18.0
Unit
V
V
DC Supply Voltage Range
Input Voltage Range (All Inputs)
DC Input Current, per Pin
This device contains protection circuitry to guard
against damage due to high static voltages or electric
fields. However, precautions must be taken to avoid ap-
plications of any voltage higher than maximum rated
voltages to this high−impedance circuit. For proper op-
eration, V and V should be constrained to the range
DD
V
in
−0.5 to V + 0.5
V
DD
I
10
mA
mW
in
P
Power Dissipation, per Package
(Note 1)
500
D
in
out
V
v (V or V ) v V
.
DD
SS
in
out
T
Operating Temperature Range
Storage Temperature Range
−55 to +125
−65 to +150
°C
°C
A
Unused inputs must always be tied to an appropriate
logic voltage level (e.g., either V or V ). Unused out-
puts must be left open.
T
stg
SS
DD
Maximum ratings are those values beyond which device damage can occur.
Maximum ratings applied to the device are individual stress limit values (not
normal operating conditions) and are not valid simultaneously. If these limits are
exceeded, device functional operation is not implied, damage may occur and
reliability may be affected.
*For additional information on our Pb−Free strategy
and soldering details, please download the
ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
1. Temperature Derating:
Plastic “P and D/DW” Packages: – 7.0 mW/_C From 65_C To 125_C
©
Semiconductor Components Industries, LLC, 2005
1
Publication Order Number:
August, 2005 − Rev. 10
MC14046B/D
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