HomedatasheetCD4046BM

CD4046BM Datasheet

Micropower Phase-locked Loop
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Description

Features, Applications

The CD4046B micropower phase-locked loop (PLL) consists of a low power linear voltage-controlled oscillator (VCO) a source follower a zener diode and two phase comparators The two phase comparators have a common signal input and a common comparator input The signal input can be directly coupled for a large voltage signal or capacitively coupled to the self-biasing amplifier at the signal input for a small voltage signal Phase comparator I an exclusive OR gate provides a digital error signal (phase comp I Out) and maintains 90 phase shifts at the VCO center frequency Between signal input and comparator input (both at 50% duty cycle) it may lock onto the signal input frequencies that are close to harmonics of the VCO center frequency Phase comparator is an edge-controlled digital memory network It provides a digital error signal (phase comp II Out) and lock-in signal (phase pulses) to indicate a locked condition and maintains a 0 phase shift between signal input and comparator input The linear voltage-controlled oscillator (VCO) produces an output signal (VCO Out) whose frequency is determined by the voltage at the VCOIN input and the capacitor and resistors connected to pin C1B R1 and R2 The source follower output of the VCOIN (demodulator Out) is used with an external resistor kX or more The INHIBIT input when high disables the VCO and source follower to minimize standby power consumption The zener diode is provided for power supply regulation if necessary

Features

Wide supply voltage range to 18V Low dynamic 70 mW (typ ) at power consumption e 10 kHz VDD e 5V VCO frequency 1 3 MHz (typ ) at VDD e 10V Low frequency drift C at VDD e 10V with temperature High VCO linearity 1% (typ )

Applications

FM demodulator and modulator Frequency synthesis and multiplication Frequency discrimination Data synchronization and conditioning Voltage-to-frequency conversion Tone decoding FSK modulation Motor speed control

If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications DC Supply Voltage (VDD) Input Voltage (VIN) Storage Temperature Range (TS) Power Dissipation (PD) Dual-In-Line Small Outline Lead Temperature (TL) (Soldering 10 seconds)

DC Supply Voltage (VDD) Input Voltage (VIN) Operating Temperature Range (TA) to 15 VDC 0 to VDD VDC

Min Quiescent Device Current Pin 5 e VDD Pin 14 e VDD Pin 9 e VSS VDD e 5V VDD e 10V VDD e 15V Pin 5 e VDD Pin 14 e Open Pin 2 e VSS VDD e 5V VDD e 10V VDD e 15V VOL Low Level Output Voltage VDD e 5V VDD e 10V VDD e 15V High Level Output Voltage VDD e 5V VDD e 10V VDD e 15V Low Level Input Voltage Comparator and Signal In High Level Input Voltage Comparator and Signal In VDD 4 5V VDD or 9V VDD 13 5V VDD 4 5V VDD or 9V VDD 13 5V

Low Level Output Current VDD 0 4V (Note 4) VDD 0 5V VDD 1 5V High Level Output Current VDD 4 6V (Note 4) VDD 9 5V VDD 13 5V Input Current All Inputs Except Signal Input VDD e 14V VIN e 0V VDD e 15V VIN e 15V Any Input (Note e 10 kHz e % VCOIN e VDD 2 VDD e 5V VDD e 10V VDD e 15V

Min Quiescent Device Current Pin 5 e VDD Pin 14 e VDD Pin 9 e VSS VDD e 5V VDD e 10V VDD e 15V Pin 5 e VDD Pin 14 e Open Pin 9 e VSS VDD e 5V VDD e 10V VDD e 15V VOL Low Level Output Voltage VDD e 5V VDD e 10V VDD e 15V High Level Output Voltage VDD e 5V VDD e 10V VDD e 15V Low Level Input Voltage Comparator and Signal In High Level Input Voltage Comparator and Signal In VDD 4 5V VDD or 9V VDD 13 5V VDD 4 5V VDD or 9V VDD 13 5V

Low Level Output Current VDD 0 4V (Note 4) VDD 0 5V VDD 1 5V High Level Output Current VDD 4 6V (Note 4) VDD 9 5V VDD 13 5V Input Current All Inputs Except Signal Input VDD e 15V VIN e 0V VDD e 15V VIN e 15V Any Input (Note e 10 kHz e % VCOIN e VDD 2 VDD e 5V VDD e 10V VDD e 15V

Note 1 ``Absolute Maximum Ratings'' are those values beyond which the safety of the device cannot be guaranteed They are not meant to imply that the devices should be operated at these limits The table of ``Recommended Operating Conditions'' and ``Electrical Characteristics'' provides conditions for actual device operation Note 2 VSS e 0V unless otherwise specified Note 3 Capacitance is guaranteed by periodic testing Note 4 IOH and IOL are tested one output at a time


Features

Parameters

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Manufacturer information

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