531AA500M000DG

Frequency Stability:	±50ppm
Current - Supply (Disable) (Max):	75mA
Height - Seated (Max):	0.071" (1.80mm)
Size / Dimension:	0.276" L x 0.197" W (7.00mm x 5.00mm)
Package / Case:	6-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	121mA
Operating Temperature:	-40°C ~ 85°C
Absolute Pull Range (APR):	--
Series:	Si531
Voltage - Supply:	3.3V
Output:	LVPECL
Function:	Enable/Disable
Frequency:	500MHz
Type:	XO (Standard)
Base Resonator:	Crystal
Part Status:	Active
Packaging:	Strip

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Oscillators

Oscillators, as the name implies, generate a continuous oscillation. They are widely used in the analog and digital circuits for controlling, measuring, synchronizing, modulating, and time-delay applications. In general, the oscillators use either a frequency synthesis technique or an electronic circuit to produce a periodic waveform, which is then used to derive other waveforms. 531AA500M000DG oscillators, specifically, are temperature compensated and voltage-controlled crystal oscillators (TCVCXO) that offer small size and minimal power consumption. This article will discuss the application field and working principle of 531AA500M000DG oscillators.

Application Field

531AA500M000DG oscillators are mainly used in communication equipment, computers, and industrial control systems. For example, they can be used in wireless base stations, RF communications systems, satellite navigation systems, remote video surveillance systems, and aviation systems. Additionally, they are used for clock synchronization, time reference, frequency reference, and in phase-locked loops.

Working Principle

The 531AA500M000DG oscillator works by harnessing the effect of temperature variation on quartz crystal resonators. It has a crystal oscillator degree of frequency at 25℃, which is the basic frequency of the quartz crystal resonator. The voltage-controlled oscillator (VCO) compares and tracks the temperature of the crystal oscillator to ensure accuracy and stability. The VCO converts the voltage of the control signal into an equivalent frequency signal and controls the step-by-step temperature compensation of the crystal oscillation frequency. The amplitude gap is detected by the amplitude comparator, and the gap signal is processed by the PID regulator, then the compensation voltage signal generates a variable tuning voltage, which is proportional to the frequency gap. The voltage tuning adjusts the frequency of the oscillator to ensure its stability.The 531AA500M000DG oscillator also features a temperature compensation circuit for better performance in extreme temperature environments. The temperature compensation circuit senses the temperature of the crystal and makes frequency corrections to ensure maximum performance.

Conclusion

In conclusion, the 531AA500M000DG oscillator is a highly accurate and reliable temperature compensated voltage-controlled crystal oscillator that finds applications in many communication, computer, and industrial control systems. It works by tracking the temperature of the crystal oscillator and making adjustments accordingly. Additionally, it features a temperature compensation circuit for better performance in extreme temperature environments. Therefore, it is a highly versatile and efficient oscillator for many applications.

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