Renesas Electronics America Inc 87004AGLFT
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- 87004AGLFT
- Renesas Electronics America Inc
- IC CLOCK GEN ZD 1:4 24-TSSOP
- Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers
- 87004AGLFT Datasheet
- 24-TSSOP (0.173\", 4.40mm Width)
- Tape & Reel (TR)
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Lead free / RoHS Compliant - 4237
- Spot Inventory / Athorized Dstributor / Factory Excess Stock
- 1 year quality assurance 》
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What is 87004AGLFT
Renesas Electronics America Inc Part Number 87004AGLFT（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.
87004AGLFT 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.
87004AGLFT Specifications
- Part Number87004AGLFT
- CategoryClock/Timing - Clock Generators, PLLs, Frequency Synthesizers
- ManufacturerRenesas Electronics America Inc
- DescriptionIC CLOCK GEN ZD 1:4 24-TSSOP
- PackageTape & Reel (TR)
- Series-
- TypeClock Generator, Fanout Distribution, Multiplexer, Zero Delay Buffer
- Voltage - Supply2.375V ~ 3.465V
- Operating Temperature0°C ~ 70°C
- Mounting TypeSurface Mount
- Package / Case24-TSSOP (0.173\", 4.40mm Width)
- Supplier Device Package24-TSSOP
- OutputLVCMOS, LVTTL
- Frequency - Max250MHz
- Number of Circuits1
- InputHCSL, LVDS, LVHSTL, LVPECL, SSTL
- PLLYes with Bypass
- Ratio - Input:Output2:4
- Differential - Input:OutputYes/No
- Divider/MultiplierYes/Yes
Application of 87004AGLFT
87004AGLFT Datasheet
87004AGLFT Datasheet , Tape & Reel (TR),Clock Generator, Fanout Distribution, Multiplexer, Zero Delay Buffer,2.375V ~ 3.465V,0°C ~ 70°C,Surface Mount,24-TSSOP (0.173\", 4.40mm Width),24-TSSOP,LVCMOS, LVTTL,250MHz,1,HCSL, LVDS
87004AGLFT 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. 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 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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