SIT8208AI-31-25E-18.432000Y

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Oscillators

1. SIT8208AI-31-25E-18.432000Y

   • Application Field

     SIT8208AI-31-25E-18.432000Y is an ultra-small, low jitter clock oscillator,which is widely used in networking, telecom, wireless communications, industrial, computing, and metrology applications. It can be implemented in ultrasound, samplers, SONET/SDH networks, and a variety of microprocessors, DSP and ASIC designs. This oscillator also provides stability and low power consumption for applications requiring a very precision and dependable clock source. This device is especially suited for applications operating in extreme temperatures ranging from −40°C to 105°C.

   • Working Principle

     The SIT8208AI-31-25E-18.432000Y oscillator energizes a piezoelectric material, such as quartz, through a frequency control voltage. The quartz resonates at a precise frequency and generates an electrical signal with a sinusoidal waveform. This signal is then amplified with an amplifier and sent to the output pin to provide an electrical signal with a certain frequency.

     The frequency of the SIT8208AI-31-25E-18.432000Y oscillator is controlled by a quartz crystal and its temperature. Temperature variation causes a slight change in the frequency of the oscillator. A temperature-compensated oscillator, known as the TCXO, is used to minimize the frequency variation due to changes in temperature. The TCXO comprises a temperature sensor, a control circuit, and a quartz crystal.

     In addition, the SIT8208AI-31-25E-18.432000Y oscillator utilizes flip-flop logic ICs which act as a circuit filter. This filter reduces external noise and interference and helps to ensure accuracy and reliability. Additionally, the oscillator has a built-in alarm function which will stop the output when an abnormal voltage is detected or when the accuracy is out of the desired range.

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