552AD000270DGR

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:	148.5MHz
Frequency - Output 1:	148.351648MHz
Type:	VCXO
Base Resonator:	Crystal
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

Pin Configurable/Selectable Oscillators are a type of oscillator that is especially designed to help reduce the number of components that need to be used when selecting the required output frequency. The 552AD000270DGR is a particularly popular choice of selectable oscillator due to its wide range of applications and its ease of use.

Application Field

The 552AD000270DGR selectable oscillator is specially designed to work in mobile Communications, Global Positioning Systems, Remote Control Systems and Radar Equipment. Its features make it suitable for these applications because its versatility allows it to be used in a wide range of devices in these fields. The 552AD000270DGR is a solid-state selectable oscillator that provides accuracy and frequency stability regardless of temperature, shock, and vibration. It is also highly immune to any electromagnetic interference for the most part, meaning that it can be used in environments with high levels of interference.

Features

The 552AD000270DGR selectable oscillator offers a number of features that make it attractive to a wide range of applications. For example, it is incredibly easy to use and configure; the 552AD000270DGR offers a single 3V - 5V power supply and is adjustable by a simple 3-pin configuration. It also feature a wide range of frequency options, from 0.75MHz to 6.00MHz. In addition, it includes a factory-programmable frequency range of ±0.50%, ±1%, ±2%, and ±4%.

Working Principle

The 552AD000270DGR selectable oscillator utilizes the Crystal Controlled Relaxation Oscillator configuration, meaning that its main component is a quartz crystal. The quartz crystal is the main oscillator element and it is connected to an integrated circuit comprising a transistor, a resistor, and an inverter circuit. The main working principle of the 552AD000270DGR is based on the resistance created between the crystal and the transistor. When an alternating current passes through the quartz crystal, it creates an oscillating electric field, which creates a high resonance frequency. As the frequency of the electric field increases, so too does its resistance which in turn causes the transistor resistance to increase. This resistance creates a positive feedback loop which is what creates the oscillation.

Conclusion

The 552AD000270DGR selectable oscillator is a highly versatile oscillator, capable of being used for a wide range of applications. Its features, such as easy configuration, wide frequency range, and high tolerance for shock and vibration, make it a particularly attractive choice for use in mobile Communications, Global Positioning Systems, Remote Control Systems, and Radar Equipment. Its working principle is based on the Crystal Controlled Relaxation Oscillator configuration, utilizing a quartz crystal to create a positive feedback loop to oscillate the electric field. Overall, the 552AD000270DGR is an excellent choice of selectable oscillator.

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