Renesas Electronics America Inc 843001AGLF
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- 843001AGLF
- Renesas Electronics America Inc
- IC CLK GEN FIBRE LVPECL 8-TSSOP
- Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers
- 843001AGLF Datasheet
- 8-TSSOP (0.173\", 4.40mm Width)
- Bulk
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Lead free / RoHS Compliant - 2907
- Spot Inventory / Athorized Dstributor / Factory Excess Stock
- 1 year quality assurance 》
- Click to get rates
What is 843001AGLF
Renesas Electronics America Inc Part Number 843001AGLF（Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers）, developed and manufactured by Renesas Electronics America 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.
843001AGLF 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.
843001AGLF Specifications
- Part Number843001AGLF
- CategoryClock/Timing - Clock Generators, PLLs, Frequency Synthesizers
- ManufacturerRenesas Electronics America Inc
- DescriptionIC CLK GEN FIBRE LVPECL 8-TSSOP
- PackageBulk
- SeriesFemtoClock®
- TypeFrequency Synthesizer
- Voltage - Supply3.135V ~ 3.465V
- Operating Temperature-30°C ~ 85°C
- Mounting TypeSurface Mount
- Package / Case8-TSSOP (0.173\", 4.40mm Width)
- Supplier Device Package8-TSSOP
- OutputLVPECL
- Frequency - Max226.66MHz
- Number of Circuits1
- InputCrystal
- PLLYes
- Ratio - Input:Output1:1
- Differential - Input:OutputNo/Yes
- Divider/MultiplierYes/No
Application of 843001AGLF
843001AGLF Datasheet
843001AGLF Datasheet , Bulk,FemtoClock®,Frequency Synthesizer,3.135V ~ 3.465V,-30°C ~ 85°C,Surface Mount,8-TSSOP (0.173\", 4.40mm Width),8-TSSOP,LVPECL,226.66MHz,1,Crystal,Yes,1:1,No/Yes,Yes/No
843001AGLF Classification
Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers
FAQ about Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers
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1. What is the difference between a PLL and a synthesizer?
The main difference between a PLL (phase-locked loop) and a synthesizer lies in their functions and application scenarios. PLL is mainly used to achieve phase locking of the output signal with the input signal, while a synthesizer is used to generate output signals of multiple frequencies.
PLL (Phase Locked Loop) is a circuit used to lock the phase. It consists of three main parts: a phase detector (PD), a low-pass filter (LPF), and a voltage-controlled crystal oscillator (VCO).
A synthesizer is a device used to generate output signals of multiple frequencies. It realizes the frequency synthesis function by adding a frequency divider on the basis of PLL. Synthesizers can be divided into integer frequency synthesizers and fractional frequency synthesizers. -
2. How does Phase-locked loops（PLL） work?
PLL (phase locked loop) is a feedback control circuit that continuously adjusts the frequency and phase of the internal oscillation signal to synchronize with the input reference signal by comparing the phase difference between the input signal and the feedback signal. PLL is mainly composed of phase detector (PD), loop filter (LF), voltage controlled oscillator (VCO) and optional divider (Divider).
When PLL starts working, the frequency of input reference signal is always different from the inherent oscillation frequency of voltage controlled oscillator, resulting in constant phase difference. The error voltage output by the phase detector is converted into a control voltage through a loop filter and added to the voltage-controlled oscillator, so that its frequency is gradually adjusted to synchronize with the input reference signal and enter the "locked" state. If the frequency and phase of the input reference signal change, the PLL controls the frequency and phase of the voltage-controlled oscillator to track the changes of the input reference signal and re-enter the locked state. -
3. What are the three types of frequency synthesizers?
There are three main types of frequency synthesizers: direct analog frequency synthesis, indirect frequency synthesis, and direct digital frequency synthesis.
Direct analog frequency synthesis: This method uses one or more different crystal oscillators as reference signal sources to directly generate many discrete frequency output signals through frequency multiplication, frequency division, mixing, etc. The advantages of direct analog frequency synthesis are high long-term and short-term frequency stability and fast frequency conversion speed, but it is difficult to debug and difficult to suppress spurious signals.
Indirect frequency synthesis: also known as phase-locked loop frequency synthesis technology (PLL), using one or several reference frequency sources, through harmonic generator mixing and frequency division, etc. to generate a large number of harmonics or combined frequencies, and then use a phase-locked loop to lock the frequency of the voltage-controlled oscillator to a certain harmonic or combined frequency. The advantages of indirect frequency synthesis are low cost and the ability to synthesize any frequency, but slow response, mainly used in civilian equipment.
Direct digital frequency synthesis: This method performs frequency synthesis based on the concept of phase, using digital sampling and storage technology, with the advantages of precise phase and frequency resolution, fast conversion time, etc. The key components of direct digital frequency synthesis include digital-to-analog converters, phase accumulators, and memories, etc., which store the required waveform version in digital format and create signals.
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