520R20HT20M0000

Frequency Stability:	±2ppm
Current - Supply (Disable) (Max):	--
Height - Seated (Max):	0.032" (0.80mm)
Size / Dimension:	0.098" L x 0.079" W (2.50mm x 2.00mm)
Package / Case:	4-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	2mA
Operating Temperature:	-10°C ~ 60°C
Series:	520
Voltage - Supply:	3V
Output:	Clipped Sine Wave
Function:	--
Frequency:	20MHz
Type:	TCXO
Base Resonator:	Crystal
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Oscillators

Oscillators are electronic circuits used to generate repetitive signals, usually used to create sound, or to measure biological processes or seismic activity. The 520R20HT20M0000 is a form of oscillator used for frequency control and ability to sense the frequency of a signal, enabling the detection of extremely slight variations between cycles. This type of oscillator is particularly useful for precision measurement, as it is able to detect even miniscule changes in frequency.

Application Field

The 520R20HT20M0000 is a type of voltage-controlled oscillator (VCO) that is used in a wide range of applications, from audio amplification to microcomputer, radio, and television signals. It is also used in digital clocks, radio receivers, quartz crystals, and many medical devices.In audio applications, the 520R20HT20M0000 is used for frequency control and for providing precise tuning in the audio range. It is also used to generate high frequency audible signals for use in speech recognition systems. In television or radio transmission, the 520R20HT20M0000 is used to monitor and control signal strength, allowing the user to select the optimum level of signal quality. In medical devices, it is often used to measure the heart rate or other biological processes.

Working Principle

The 520R20HT20M0000 works by generating electrical pulses at a specified frequency. It utilizes a voltage-controlled oscillator (VCO) and an internal reference frequency generator to create the pulses by relying on the voltage fluctuation of an electrical current and the phase lock loop of a microprocessor.The VCO consists of a voltage divider, two levers, and a capacitor that functions as an ‘integrator’. When the voltage divider is tapped, the two levers vibrate and produce a sine wave. The frequency of the sine wave is determined by the reference frequency generator, which is controlled by a microprocessor. The microprocessor is able to detect the frequency of the electrical pulses and use it to adjust the reference frequency in order to maintain a precise frequency level. This is known as ‘phase lock loop’ or PLL, and it is used to maintain a consistent frequency over time, even if the environment is unstable or the external sources of voltage fluctuate.The 520R20HT20M0000 is very precise and reliable. It is able to detect even miniscule variations in frequency and is therefore highly suitable for use in sensitive applications such as medical devices, quartz crystals, and radio receivers. It is also used in audio applications for providing precise tuning in the audio range, as it enables the user to obtain the optimum level of signal quality.

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