552AD000112DGR

Function:	Enable/Disable
Current - Supply (Disable) (Max):	75mA
Package / Case:	6-SMD, No Lead
Height:	0.071" (1.80mm)
Size / Dimension:	0.276" L x 0.197" W (7.00mm x 5.00mm)
Current - Supply (Max):	130mA
Operating Temperature:	-40°C ~ 85°C
Frequency Stability:	±50ppm
Voltage - Supply:	3.3V
Output:	LVPECL
Series:	Si552
Frequency - Output 4:	--
Frequency - Output 3:	--
Frequency - Output 2:	644.53125MHz
Frequency - Output 1:	622.08MHz
Type:	VCXO
Base Resonator:	Crystal
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Pin Configurable/Selectable Oscillators: 552AD000112DGR

Pin Configurable/Selectable Oscillators, such as the 552AD000112DGR, are a type of oscillator that are used in many electronic applications. Designed to provide users with the ability to quickly adjust their frequencies and other parameters, owing to their broad range of applications, these oscillators are becoming increasingly popular.In this article, we’ll discuss the 552AD000112DGR’s application field and working principle.

Application Field

The 552AD000112DGR can be used to provide precise and consistent clock signals in a wide range of applications, from basic timing and counters to telecommunications, data transmission and signal conversions. It is also suitable for several other areas such as sensor networks, HDD, automotive, industrial and instrumentation systems, as well as a wide range of embedded microprocessor systems. Given their versatility, they can also be used in applications that require precise timing, such as periodic timing of data, synchronization of data, sampling of input signals, and frequency shift keying.

Working Principle

The working principle of the 552AD000112DGR is quite simple. It is an oscillator that generates a periodic signal that can be used to precisely measure time. It has a wide range of frequencies, depending on its specifications, but thanks to its pin configuration it can be adjusted for the exact frequency needed for a particular application.In the 552AD000112DGR, the input and output pins provide access to the differential inputs from which the logic is derived. An internal voltage-controlled oscillator (VCO) is used to generate the precise output frequency. This oscillator is usually employed in an open loop or closed loop arrangement in order to achieve the desired accuracy and stability.The open loop arrangement consists of an input signal, a reference frequency and a multiplexer. The reference frequency is tapped from the VCO and fed back to the multiplexer. The multiplexer then adjusts the oscillator so that the output frequencies match the desired frequency. This arrangement provides sufficient frequency accuracy and Phase Lock Loop (PLL) architecture is sometimes implemented to provide better performance.The closed loop structure is similar to the open loop structure, but is dependent on feedback circuitry to adjust the output frequency of the oscillator. A VCO is employed and the output is compared with a reference signal, usually a crystal oscillator. A resolver is used to compare the signals and the VCO is adjusted accordingly. The feedback ensures that the output frequency locks to the reference frequency and no further adjustments are required.

Conclusion

The 552AD000112DGR is a pin configurable oscillator capable of quickly and accurately providing timing signals in many electronic applications. Its wide range of frequencies and pin configuration makes it especially suited for applications that require precise timing and accuracy. Its open and closed loop architectures ensure reliability and robust operation.

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