Analog Devices Inc. HMC821LP6CE
- HMC821LP6CE
- Analog Devices Inc.
- IC FRACT-N PLL 16BIT 40SMT
- Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers
- HMC821LP6CE Datasheet
- 40-VFQFN Exposed Pad
- Tube
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What is HMC821LP6CE
Analog Devices Inc. Part Number HMC821LP6CE(Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers), developed and manufactured by Analog Devices Inc., 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.
HMC821LP6CE 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.
HMC821LP6CE Specifications
- Part NumberHMC821LP6CE
- CategoryClock/Timing - Clock Generators, PLLs, Frequency Synthesizers
- ManufacturerAnalog Devices Inc.
- DescriptionIC FRACT-N PLL 16BIT 40SMT
- PackageTube
- Series-
- Type-
- Voltage - Supply3V ~ 5.2V
- Operating Temperature-40°C ~ 85°C
- Mounting TypeSurface Mount
- Package / Case40-VFQFN Exposed Pad
- Supplier Device Package40-SMT (6x6)
- OutputCMOS
- Frequency - Max4.16GHz
- Number of Circuits1
- InputCMOS
- PLLYes
- Ratio - Input:Output1:1
- Differential - Input:OutputNo/Yes
- Divider/MultiplierYes/Yes
Application of HMC821LP6CE
HMC821LP6CE Datasheet
HMC821LP6CE Datasheet , Tube,3V ~ 5.2V,-40°C ~ 85°C,Surface Mount,40-VFQFN Exposed Pad,40-SMT (6x6),CMOS,4.16GHz,1,CMOS,Yes,1:1,No/Yes,Yes/Yes
HMC821LP6CE Classification
Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers
FAQ about Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers
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1. Which is better, direct digital synthesis or PLL?
Direct digital synthesis (DDS) and PLL each have their own advantages and disadvantages. Choosing which one is better depends on the specific application requirements. DDS performs well in frequency switching speed and high resolution, while PLL has more advantages in phase noise and spurious performance.
The advantages of DDS include:
High frequency switching speed: DDS works in the digital domain. Once the frequency control word is updated, the output frequency changes accordingly, and the frequency hopping rate is high.
High resolution: Due to the large width of the frequency control word (such as 48bit or higher), the frequency resolution is high.
Flexibility: DDS can generate any desired waveform and initial phase, suitable for applications requiring a wide range of scenarios.
PLL advantages include:
Low phase noise: PLL excels in low phase noise and low spurious performance, suitable for applications requiring high stable frequency.
Wide frequency range: The upper limit of the PLL output frequency depends on the upper limit of the VCO, which can support a wider frequency range.
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2. 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. -
3. What are frequency synthesizers used for?
Frequency synthesizers have a wide range of applications in many fields, mainly including the following aspects:
Communication systems: In communication systems, frequency synthesizers are used to generate carrier frequencies and modulation signals to ensure the normal operation of communication equipment and the stability of signal transmission. It can provide high-precision and stable frequency signals to meet the requirements of communication systems for frequency accuracy and stability.
Radar systems: Radar systems require accurate frequency synthesis to ensure functions such as beam pointing and target tracking. Frequency synthesizers play a key role in radar systems, providing precise frequency control to ensure the performance and accuracy of radar systems.
Radio equipment: Radio equipment requires frequency synthesizers to generate signals of different frequencies for modulation and demodulation, signal transmission and reception, etc., to ensure effective communication between devices. The high accuracy and stability of frequency synthesizers enable radio equipment to work efficiently.
Instrumentation and test equipment: Frequency synthesizers are used in test and measurement applications as standard signal sources. It can generate high-precision and stable frequency signals to meet the signal quality requirements of laboratory test and measurement equipment.
Electronic countermeasure equipment: In electronic countermeasures, frequency synthesizers can be used as jammers to interfere with enemy communications and radar systems by generating signals of multiple frequencies. Its high flexibility and rapid response make it important in electronic countermeasures.
Other applications: Frequency synthesizers are also widely used in remote control and telemetry communications, navigation, and radio and television. For example, in shortwave frequency hopping communications, frequency synthesizers can quickly switch frequencies and phases to meet the requirements of fast frequency hopping communications.
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