© Semiconductor Components Industries, LLC, 2014
August, 2014 − Rev. 14
1 Publication Order Number:
MC14046B/D
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
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.
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.
Features
• Buffered Outputs Compatible with 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
• NLV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
• These Devices are Pb−Free and are RoHS Compliant
MAXIMUM RATINGS (Voltages Referenced to V
SS
)
Symbol
Parameter Value Unit
V
DD
DC Supply Voltage Range −0.5 to +18.0 V
V
in
Input Voltage Range (All Inputs) −0.5 to V
DD
+ 0.5 V
I
in
DC Input Current, per Pin ± 10 mA
P
D
Power Dissipation, per Package (Note 1) 500 mW
T
A
Operating Temperature Range −55 to +125 °C
T
stg
Storage Temperature Range −65 to +150 °C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. Temperature Derating: “D/DW” Packages: –7.0 mW/_C From 65_C To 125_C
http://onsemi.com
MARKING DIAGRAMS
SOIC−16 WB
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
G = Pb−Free Indicator
SOEIAJ−16
MC14046B
ALYWG
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
ORDERING INFORMATION
1
16
14046BG
AWLYYWW
This device contains protection circuitry to guar
gainst damage due to high static voltages or electr
ields. However, precautions must be taken to avoid a
lications of any voltage higher than maximum rate
oltages to this high−impedance circuit. For proper o
ration, V
in
and V
out
should be constrained to the rang
SS
≤ (V
in
or V
out
) ≤ V
DD
.
Unused inputs must always be tied to an appropria
ogic voltage level (e.g., either V
SS
or V
DD
). Unused ou
uts must be left open.
16
1
SOIC−16 WB
DW SUFFIX
CASE 751G
SOEIAJ−16
F SUFFIX
CASE 966
