SIT1602BI-11-18N-20.000000E

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Oscillators

Oscillators are electronic circuits used to generate signals with certain fixed frequencies, usually in the form of sine, square, sawtooth, or triangle waveforms. Depending on the application, different types of oscillators are used. One such type is the SIT1602BI-11-18N-20.000000E.

The SIT1602BI-11-18N-20.000000E is an oscillator designed as a high-precision, low-power, and low-phase noise device. It is used mainly in various telecommunication and wireless communication applications, such as base stations, mobile radio, cellular networks, radio mobile terminals, and Wi-Fi. The oscillator features a broad frequency range of 10 MHz to 800 MHz, with a harmonic of -50dBc/Hz and an output power of +4dBm. Its phase noise is low for wideband frequencies.

The SIT1602BI-11-18N-20.000000E works on the principle of frequency control. The oscillator is based on a feedback loop that ensures the output is generated at a specific frequency. The output frequency is determined by an internal resonator, an external resonator, or an external control voltage applied to the oscillator pins. If an external resonator is used, it should be tuned to the desired operating frequency. The internal circuit of the oscillator is comprised of an amplifier, an integrator, a frequency divider, and a phase comparator.

The amplifier receives the input signal (usually a sinusoidal signal) and amplifies it. This amplified signal is then sent to the integrator, which converts it to a DC voltage level. This DC voltage is then fed to the frequency divider, which divides the signal into two parts. The first part is sent to the phase comparator, which compares the phase of the divided signal with the phase of the reference signal and generates an error signal if the phase difference exceeds a certain threshold. This error signal is then fed back to the amplifier, thus completing the loop.

Thus, the feedback loop ensures that the oscillator is synchronized at a certain frequency. This process is known as frequency locking and helps the oscillator to remain synchronized at a certain frequency, even under changing environmental conditions. This feature makes the SIT1602BI-11-18N-20.000000E a reliable and stable oscillator for various telecommunication and wireless communication applications.

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