SIT9120AC-2D2-33E100.000000T

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Oscillators are devices which can generate an output signal with an oscillation frequency falling within a required range. SIT9120AC-2D2-33E100.000000T is a member of such family which is commonly utilized in various applications. It is a miniaturized temperature compensated crystal oscillator (TCXO) that consists of a low noise, low power, high frequency crystal oscillator circuit and temperature compensation circuits.

The SIT9120AC-2D2-33E100.000000T offers a frequency of 100.000000MHz with high stability and low current consumption. It is suitable for applications such as base station transceiver, GPS, Wi-Fi, Bluetooth, mobile cellular, WIMAX and base station backhaul. It has zero high frequency harmonic spurious that helps reduce phase noise. The device has an operating temperature range between -30 to 85°C.

This oscillator consists of a quartz crystal and the associated electronic circuitry which helps to determine the output frequency of oscillations. The functions of these components are described below in order to understand the working principle of SIT9120AC-2D2-33E100.000000T oscillator.

The quartz crystal is the fundamental element of the oscillator. It is a piezo-electric device fabricated from silicon dioxide which changes its shape under the application of an external electric field and then restoring back to its original shape. This vibrates at an exact frequency determined by the quartz size and shape.

The oscillation circuit is necessary to maintain the vibration of the crystal and to transfer this oscillation into the output signal. It contains an operational amplifier, a feedback circuit and a resistor. The operational amplifier serves as an amplifier, and the resistor and feedback circuit act as a feedback network. The feedback circuit adjusts the gain of the amplifier to ensure the oscillation is maintained in a stable condition.

The temperature compensation circuit is used to ensure the frequency accuracy across the ambient temperatures. The compensation circuit mainly consists of an analog temperature sensor, used to detect the ambient temperature, and an RC network which act as a low-pass filter. The signal from the temperature sensor is feedback to the crystal oscillator, so as to adjust the frequency according to the ambient temperature, which helps to provide a high frequency accuracy over the operating temperature range.

SIT9120AC-2D2-33E100.000000T also consists of an integrated power amplifier which amplifies the output signal from the oscillator circuit to the required output level. The amplifier is designed to provide high output power, low phase noise and harmonic distortion, making it ideal for wide spread use.

The SIT9120AC-2D2-33E100.000000T is a highly reliable and cost effective TCXO. With its high stability and low power consumption, this oscillator is suitable for a variety of applications such as communications, instrumentation, telecommunications, military and aerospace systems. Its integrated power amplifier ensures high output power so it can be used in high power applications for a wide range of frequencies.

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