STMicroelectronics HCF4046BEY
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- HCF4046BEY
- STMicroelectronics
- IC PHASE-LOCK LOOP MCRPWR 16-DIP
- Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers
- HCF4046BEY Datasheet
- 16-DIP (0.300\", 7.62mm)
- Tube
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Lead free / RoHS Compliant - 711
- Spot Inventory / Athorized Dstributor / Factory Excess Stock
- 1 year quality assurance 》
- Click to get rates
What is HCF4046BEY
STMicroelectronics Part Number HCF4046BEY（Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers）, developed and manufactured by STMicroelectronics, distributed globally by Jinftry. We distribute various electronic components from world-renowned brands and provide one-stop services, making us a trusted global electronic component distributor.
HCF4046BEY is one of the part numbers distributed by Jinftry, and you can learn about its specifications/configurations, package/case, Datasheet, and other information here. Electronic components are affected by supply and demand, and prices fluctuate frequently. If you have a demand, please do not hesitate to send us an RFQ or email us immediately [email protected] Please inquire about the real-time unit price, Data Code, Lead time, payment terms, and any other information you would like to know. We will do our best to provide you with a quotation and reply as soon as possible.
HCF4046BEY Specifications
- Part NumberHCF4046BEY
- CategoryClock/Timing - Clock Generators, PLLs, Frequency Synthesizers
- ManufacturerSTMicroelectronics
- DescriptionIC PHASE-LOCK LOOP MCRPWR 16-DIP
- PackageTube
- Series-
- TypePhase Lock Loop (PLL)
- Voltage - Supply3V ~ 20V
- Operating Temperature-55°C ~ 125°C
- Mounting TypeThrough Hole
- Package / Case16-DIP (0.300\", 7.62mm)
- Supplier Device Package16-DIP
- OutputCMOS
- Frequency - Max1.4MHz
- Number of Circuits1
- InputCMOS
- PLLYes
- Ratio - Input:Output2:1
- Differential - Input:OutputNo/No
- Divider/MultiplierNo/No
Application of HCF4046BEY
HCF4046BEY Datasheet
HCF4046BEY Datasheet , Tube,Phase Lock Loop (PLL),3V ~ 20V,-55°C ~ 125°C,Through Hole,16-DIP (0.300\", 7.62mm),16-DIP,CMOS,1.4MHz,1,CMOS,Yes,2:1,No/No,No/No
HCF4046BEY Classification
Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers
FAQ about Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers
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1. How does the output frequency of the PLL frequency synthesizer change?
The core of the PLL frequency synthesizer is to change the output frequency by adjusting the various components in the loop. The basic working principle of the PLL frequency synthesizer is to generate a stable frequency signal through the interaction of the phase detector, loop filter and voltage-controlled oscillator. When the output frequency needs to be changed, the control voltage of the voltage-controlled oscillator can be changed by adjusting the input signal or by an external control signal to adjust its output frequency.
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2. What is a PLL clock generator?
A PLL clock generator (Phase-Locked Loop Clock Generator) is an electronic circuit used to generate and adjust a clock signal. It automatically adjusts the frequency of the internal oscillator by comparing the phase difference between the input signal and the output signal of the internal oscillator so that the phase of the output signal is synchronized with the input signal. PLL clock generator is mainly used to generate high-speed and stable clock signal to provide timing reference for communication system.
The key components of PLL clock generator include:
Phase detector: compare the phase difference between input signal and feedback signal.
Charge pump: adjust the voltage to control the frequency of VCO according to the output of phase detector.
Loop filter: smooth the output of charge pump and reduce noise.
Voltage controlled oscillator (VCO): change the oscillation frequency according to the control voltage to generate output clock signal.
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3. What is the difference between PLL and oscillator?
The main difference between PLL and oscillator lies in their functions and features. PLL has the ability of phase locking and frequency tracking, which can provide higher frequency stability, especially in the presence of an external reference signal. Oscillators usually generate fixed-frequency signals and do not have these functions of PLL.
Specifically, oscillators are devices used to generate periodic signals. Common types include RC oscillators, LC oscillators, and crystal oscillators. RC oscillators have a simple structure and low cost, but poor frequency stability and accuracy; LC oscillators have good frequency stability, but are large in size and high in cost; crystal oscillators have extremely high frequency stability, but are expensive.
PLL is a feedback control circuit that can compare the output of the oscillator with a reference signal, generate a control voltage based on the phase difference, and thus adjust the frequency and phase of the oscillator to synchronize it with the reference signal. PLL can generate output signals with higher or lower frequencies than the reference signal, and is usually more complex to design and implement than oscillators, with higher power consumption and cost.
Whether to choose an oscillator or PLL depends on the specific application requirements. If a fixed frequency signal is required and cost and complexity are a concern, an oscillator is the appropriate choice. If precise frequency control and low phase noise are required and a stable reference signal is available in the system, a PLL is a better choice.
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