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
DIAGRAMS
16
provides a digital error signal PC1 , and maintains 90° phase shift at
out
the center frequency between PCA and PCB signals (both at 50%
in
in
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
AWLYYWW
out
phase shift between PCA and PCB signals (duty cycle is
in
in
1
immaterial). The linear VCO produces an output signal VCO
out
16
whose frequency is determined by the voltage of input VCO and the
in
capacitor and resistors connected to pins C1 , C1 , R1, and R2. The
A
B
14046B
SO–16
DW SUFFIX
CASE 751G
source–follower output SF with an external resistor is used where
out
the VCO signal is needed but no loading can be tolerated. The inhibit
in
AWLYYWW
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
16
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.
EIAJ SO–16
F SUFFIX
CASE 966
MC14046B
ALYW
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
WW, W = Work Week
• Pin–for–Pin Replacement for CD4046B
• Phase Comparator 1 is an Exclusive Or Gate and is Duty Cycle Limited
ORDERING INFORMATION
• Phase Comparator 2 switches on Rising Edges and is not Duty Cycle
Device
Package
PDIP–16
SO–16
Shipping
Limited
MC14046BCP
MC14046BDW
MC14046BDWR2
2000/Box
2350/Box
MAXIMUM RATINGS (Voltages Referenced to V ) (Note 2.)
SS
Symbol
Parameter
Value
Unit
V
SO–16
1000/Tape & Reel
V
DD
DC Supply Voltage Range
Input Voltage Range (All Inputs)
DC Input Current, per Pin
–0.5 to +18.0
MC14046BF
EIAJ SO–16 Refer to Note 1.
EIAJ SO–16 Refer to Note 1.
V
in
–0.5 to V + 0.5
V
DD
MC14046BFEL
I
in
±10
mA
mW
1. For ordering information on the EIAJ version of
the SOIC packages, please contact your local
ON Semiconductor representative.
P
D
Power Dissipation,
500
per Package (Note 3.)
T
Operating Temperature Range
Storage Temperature Range
–55 to +125
–65 to +150
°C
°C
A
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
T
stg
2. Maximum Ratings are those values beyond which damage to the device
may occur.
3. Temperature Derating:
Plastic “P and D/DW” Packages: – 7.0 mW/_C From 65_C To 125_C
operation, V and V should be constrained to the
in
out
range V v (V or V ) v V .
DD
SS
in
out
Unused inputs must always be tied to an appropriate
logic voltage level (e.g., either V or V ). Unused out-
SS
DD
puts must be left open.
Semiconductor Components Industries, LLC, 2001
1
Publication Order Number:
May, 2001 – Rev. 7
MC14046B/D