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, PCAin and
PCBin. Input PCAin 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 PC1out, and maintains 90° phase shift at
the center frequency between PCAin and PCBin signals (both at 50%
duty cycle). Phase comparator 2 (with leading edge sensing logic)
provides digital error signals, PC2out 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 VCOout
whose frequency is determined by the voltage of input VCOin and the
capacitor and resistors connected to pins C1A, C1B, R1, and R2. The
source−follower output SFout with an external resistor is used where
the VCOin 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.
http://onsemi.com
MARKING
DIAGRAMS
PDIP−16
P SUFFIX
CASE 648
•
•
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
These Devices are Pb−Free and are RoHS Compliant
MC14046BCP
AWLYYWWG
1
16
SOIC−16 WB
DW SUFFIX
CASE 751G
14046BG
AWLYYWW
1
16
SOEIAJ−16
F SUFFIX
CASE 966
Features
•
•
•
•
•
16
MC14046B
ALYWG
1
A
WL, L
YY, Y
WW, W
G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Indicator
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 4 of this data sheet.
MAXIMUM RATINGS (Voltages Referenced to VSS)
Parameter
Symbol
Value
Unit
−0.5 to +18.0
V
VDD
DC Supply Voltage Range
Vin
Input Voltage Range (All Inputs)
−0.5 to VDD + 0.5
V
Iin
DC Input Current, per Pin
± 10
mA
PD
Power Dissipation, per Package
(Note 1)
500
mW
TA
Operating Temperature Range
−55 to +125
°C
Tstg
Storage Temperature Range
−65 to +150
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum
Ratings are stress ratings only. Functional operation above the Recommended
Operating Conditions is not implied. Extended exposure to stresses above the
Recommended Operating Conditions may affect device reliability.
1. Temperature Derating:
Plastic “P and D/DW” Packages: – 7.0 mW/_C From 65_C To 125_C
© Semiconductor Components Industries, LLC, 2011
June, 2011 − Rev. 12
1
This device contains protection circuitry to guard
against damage due to high static voltages or electric
fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated
voltages to this high−impedance circuit. For proper operation, Vin and Vout should be constrained to the range
VSS v (Vin or Vout) v VDD.
Unused inputs must always be tied to an appropriate
logic voltage level (e.g., either VSS or VDD). Unused outputs must be left open.
Publication Order Number:
MC14046B/D
