578S130CTT

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Oscillators: 578S130CTT Application Field and Working Principle

578S130CTT is a type of oscillator, used to generate an electrical signal with a precise frequency. It is an ultra-stable and high-precision voltage controlled crystal oscillator, that provides a low phase noise performance with low power dissipation. It is generally available in a variety of temperature ranges and stability options, and is ideal for high performance applications such as medical equipment, radar, military, communications, satellite and test & measurements. Its application fields also include, but are not limited to, industrial, automotive and consumer applications.

The 578S130CTT oscillator uses an activity controlled crystal oscillator (ACXO) circuit; it offers an improved phase noise performance compared to the traditional voltage controlled crystal oscillator (VCXO) which works on the principle of frequency-voltage conversion. The frequency of this ACXO is affected by the capacitance of the crystal, making it more reliable and having a wider range of stability.

The ACXO consists of an amplifier, a crystal-driven feedback circuit, and a voltage controlled oscillator (VCO). The amplifier’s output is coupled with the oscillator’s output to generate the oscillation. The feedback voltage of the crystal is used to stabilize the oscillations. The crystal’s oscillation frequency is then tuned to the desired frequency by applying a control voltage to the VCO.

The 578S130CTT oscillator operates at a high stability with low phase noise performance that enables it to be used for high performance applications. The presence of a voltage-controlled frequency and a frequency-controlled voltage makes the process of tuning faster. It also provides an improved dynamic range with frequency synthesis accuracy. Furthermore, the frequency stability, over temperature, is better compared to traditional VCXO.

Additionally, it has an excellent frequency stepping accuracy with high resistor and capacitor tolerances, a robust construction, and is low in cost. All of the above features make the 578S130CTT an ideal choice for applications requiring high frequency accuracy, phase noise performance, and/or temperature stability.

In conclusion, the 578S130CTT is an ACXO that provides high performance for applications that require frequency stability, accuracy and phase noise performance. Its features and low cost make it a popular choice among oscillator applications and high performance systems.

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