550AA670M000DG

Frequency Stability:	±100ppm
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):	130mA
Operating Temperature:	-40°C ~ 85°C
Absolute Pull Range (APR):	±100ppm
Series:	Si550
Voltage - Supply:	3.3V
Output:	LVPECL
Function:	Enable/Disable
Frequency:	670MHz
Type:	VCXO
Base Resonator:	Crystal
Part Status:	Active
Packaging:	Strip

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Oscillators Oscillators are electrical circuits that are able to generate a steady and repeated output signal even though they do not receive an input signal. Oscillators are extensively used in various fields of electronics, from communications to power control and so on. One of the commonly used oscillators is the 550AA670M000DG oscillator. This device is mainly applied in timing, frequency control and signal control circuits.The 550AA670M000DG oscillator is able to generate very stable oscillation frequency. This is because it has two important features. The first feature is the built-in temperature compensation circuit which can control the drift of oscillation frequency caused by the variation of ambient temperature. The second is the built-in frequency-determining circuit which could ensure the frequency accuracy.In terms of working principle, the 550AA670M000DG oscillator employs the LC resonant circuit. When a dc power is applied, the voltage across the feedback resistor initiates an alternating electric current across the resonant LC circuit. The frequency of the output signal is determined by the resonant frequency of LC circuit, which is a constant frequency determined by the value of inductance and capacitance of the LC circuit.The LC resonant circuit of the 550AA670M000DG oscillator plays an important role in improving its performance. It is mainly composed of a LC resonant tank whose inductance is usually large while the capacitance is small. The resonant tank acts as an integrator and the resonance frequency is determined by the values of LC parameters. This allows the oscillator to generate a very stable oscillation frequency.To conclude, the 550AA670M000DG oscillator is a very useful device that is able to generate precise and stable oscillation frequencies for timing, frequency control and signal control applications. It employs the LC resonant circuit to achieve its excellent performance. The temperature compensation and frequency determining circuits further improve its frequency accuracy and temperature stability.

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