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Description
CMOS Micropower Phase-Locked Loop
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CD4046B CMOS Micropower Phase-Locked Loop (PLL) consists of a low-power, linear voltage-controlled oscillator (VCO) and two different phase comparators having a common signal-input amplifier and a common comparator input. A 5.2-V zener diode is provided for supply regulation if necessary.
The CD4046B types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix),16-lead dual-in-line plastic packages (E suffix), 16-lead small-outline packages (NSR suffix), and 16-lead thin shrink small-outline packages (PW and PWR suffixes).
VCO Section
The VCO requires one external capacitor C1 and one or two external resistors (R1 or R1 and R2). Resistor R1 and capacitor C1 determine the frequency range of the VCO and resistor R2 enables the VCO to have a frequency offset if required. The high input impedance (1012Ω) of the VCO simplifies the design of tow-pass filters by permitting the designer a wide choice of resistor-to-capacitor ratios. In order not to load the low-pass filter, a source-follower output of the VCO input voltage is provided at terminal10 (DEMODULATED OUTPUT). If this terminal is used, a load resistor (RS) of 10kΩ or more should be connected from this terminal to VSS. If unused this terminal should be left open. The VCO can be connected either directly or through frequency dividers to the comparator input of the phase comparators. A full CMOS logic swing is available at the output of the VCO and allows direct coupling to CMOS frequency dividers such as the RCA-CD4024, CD4018, CD4020, CD4022, CD4029, and CD4059. One or more CD4018 (Preset-table Divide-by-N Counter) or CD4029 (Presettable Up/Down Counter), or CD4059A (Programmable Divide-by-"N"Counter), together with the CD4046B (Phase-Locked Loop) can be used to build a micropower low-frequency synthesizer. A logic 0 on the INHIBIT input "enables" the VCO and the source follower, while a logic 1 "turns off" both to minimize stand-by power consumption.
Features:
● Very low power consumption: 70μW (typ.) at VCO fO = 10 kHz, VDD=5V
● Operating frequency range up to 1.4 MHz (typ.) at VDD = 10 V,RI = 5 kΩ
● Low frequency drift: 0.04%/℃ (typ.) at VDD - 10V
● Choice of two phase comparators: Exclusive-OR network Edge-controlled memory network with phase-pulse output for lock indication
● High VCO linearity: <1% (typ.) at VDD = 10V
● VCO inhibit control for ON-OFF keying and ultra-low standby power consumption
● Source-follower output of VCO control input (Demod. Output)
● Zener diode to assist supply regulation
● Standardized, symmetrical output characteristics
● 100% tested for quiescent current at 20V
● 5-V,10-V , and 15-V parametric ratings
● Meets all requirements of JEDEC Tentative Standard No.13B.”Standard Specifications for Description of 'B' Series CMOS Devices"
Applications:
● FM demodulator and modulator
● Frequency synthesis and multiplication
● Frequency discriminator
● Data synchronization
● Voltage-to-frequency conversion
● Tone decoding
● FSK- Modems
● Signal conditioning
● (See lCAN-6101) “RCA COS/MOS Phase-Locked Loop-A Versatile Building Bock for Micropower Digital and Analog Applications”
Preview of the first 3 pages of the data sheet
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6 buyer reviews from Philippines
Kim Benedict Chua
Length of registration:3 years
Got it in very good packaging. Will test and hopefully it will work well. Thank you!
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03/17/2021
Ramon R. Reyes
Length of registration:12 years
works good! fm DU1FV
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03/27/2017
Norman Tayo
Length of registration:10 years
THANK YOU...GOT THE ITEM QUICKLY.
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02/06/2017
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CD4046BE
CD4046BE has several brands around the world that may have alternate names for CD4046BE due to regional differences or acquisition. CD4046BE may also be known as the following names:
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