CDC421A212RGET

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Clock Generator
PLL:	Yes
Input:	LVCMOS, Crystal
Output:	LVPECL
Number of Circuits:	1
Ratio - Input:Output:	1:1
Differential - Input:Output:	No/Yes
Frequency - Max:	212.5MHz
Divider/Multiplier:	Yes/No
Voltage - Supply:	3 V ~ 3.6 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	24-VFQFN Exposed Pad
Supplier Device Package:	24-VQFN (4x4)
Base Part Number:	CDC421A212

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Introduction to CDC421A212RGET Clock Generators, PLLs, and Frequency SynthesizersClock generation and synchronization technology (CGST) is a rapidly growing field of engineering and includes many components including clock generators, PLLs and frequency synthesizers, which are all important elements in digital systems, communications and large-scale integrated circuit (LSI) technology. The CDC421A212RGET is a high-speed clock generator, phase-locked loop (PLL) and frequency synthesizer integrated circuit (IC) designed for use in a variety of applications.CDC421A212RGET ApplicationsThe CDC421A212RGET has been designed for multiple applications, including oscillators, clock and timing systems, low-power/low-noise radio receivers, data converters and video distribution architectures. It can be used as an oscillator or frequency synthesizer with CMOS, TTL and ECL logic levels. It is ideal for generating frequency and jitter-clean clock signals \ from a wide range of input frequencies in applications requiring low-jitter, high reliability, and low-cost.CDC421A212RGET Working Principle The CDC421A212RGET is a digital-controlled oscillator (DCO) that contains a unique combination of a digital PLL and a frequency synthesizer. It uses a reference clock as an input to a phase detector, which is then compared with a feedback clock from the output of the PLL loop to detect any phase difference between the two. A correction signal is then generated and used to adjust the frequency of the oscillator to correct the phase error. In addition, the CDC421A212RGET utilizes a wide-frequency-range voltage-controlled oscillator (VCO) that has a very low-phase noise floor. It is capable of generating frequency signals from 25-400 MHz with a high accuracy, small size, and low cost. The CDC421A212RGET also has power-saving features such as frequency-dependent jitter attenuator and logic-controlled startup.ConclusionThe CDC421A212RGET is a high-speed clock generator, PLL and frequency synthesizer integrated circuit designed for use in many applications. It utilizes an ultra-low-noise VCO, digital PLL and a frequency synthesizer to provide reliable, low-jitter frequency signals on a wide-range of frequencies. It delivers high accuracy, small size and low cost, making it ideal for digital systems, communication, and LSI applications.

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