MC14046B ,Phase Locked Loopsignals. The self−bias circuit adjusts small voltage signals in the linearregion of the amplifier. ..
MC14046BCL ,Phase Locked LoopMAXIMUM RATINGS* (Voltages Referenced to V )SSÎÎÎÎÎÎRating Symbol Value UnitÎÎÎÎÎÎ DC Supply Voltag ..
MC14046BCL ,Phase Locked LoopBLOCK DIAGRAMSELF BIAS PHASEPCA 14 2 PC1in outCIRCUIT COMPARATOR 1PHASE 13 PC2outPCB 3 COMPARATOR 2 ..
MC14046BCP ,Phase Locked LoopELECTRICAL CHARACTERISTICS (Voltages Referenced to V )SSÎ – 55ÎÎÎÎÎÎ * CÎ 25* CÎÎÎÎÎÎ 125ÎÎÎÎÎÎ * C ..
MC14046BD ,Phase Locked LoopELECTRICAL CHARACTERISTICS (Voltages Referenced to V )SS – 55CÎ 25CÎÎÎÎÎ 125CÎÎÎV VDD DDCharacte ..
MC14046BDW ,Phase Locked LoopMAXIMUM RATINGS* (Voltages Referenced to V )SSÎÎÎÎÎÎRating Symbol Value UnitÎÎÎÎÎÎ DC Supply Voltag ..
MC6840CP ,Programmable timer module, 1 MHzMAXIMUM RATINGSThis devtce contains circuitry to protect theRatingSymbol Value UnitInputs agatnst d ..
MC6840CP ,Programmable timer module, 1 MHzMAXIMUM RATINGSThis devtce contains circuitry to protect theRatingSymbol Value UnitInputs agatnst d ..
MC6840P ,Programmable timer module, 1 MHzTHERMAL CHARACTERISTICS SVCC. Rellabllity of operation IS enhanced~,unused Inputs are tied to an ap ..
MC6845L ,CRT controller performs the interface to raster scan CRT displays
MC68488CP ,Speed: 1.0MHz; V(cc): -0.3 to +7.0V; V(in): -0.3 to +7.0V; ; general purpose interface adapter
MC68488P ,GENERAL PURPOSE INTERFACE ADAPTER
MC14046B-MC14046BF
Phase Locked Loop
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 PCAin and PCBin 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.
Features 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 Pb−Free Packages are Available*
MAXIMUM RATINGS (Voltages Referenced to VSS)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.
