SIT8008BIR3-18S

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Programmable oscillators are a type of device which generates oscillatory signals with a programmable frequency and amplitude over specific ranges. The SIT8008BIR3-18S is an example of one of these oscillators, and it is used in applications such as frequency synthesis, frequency agile transceivers, frequency synthesis, and time-interval measurements. Moreover, it is capable of driving multiple loads without needing any additional drive circuitry.

The SIT8008BIR3-18S is a complex programmable oscillator, allowing users to control its output frequency in both continuous and a step fashion. It has a frequency range from 1.1 – 108 MHz and the oscillator frequency can be controlled using 10 bit word size. It also features a power supply voltage range of 3.3 – 5.5V and has a current capacity of 18mA. In addition, it has a low standby current of up to 0.7μA and a low reference frequency accuracy of around +/- 30ppb.

The SIT8008BIR3-18S next generation resonator structure maximizes the short-term stability of the reference clock and the high frequency clocks, thus making it suitable for high performance frequency synthesis applications. It is also suitable for applications where high performance and low power consumption are important factors. In addition, the device offers good phase noise performance and low jitter over a wide range of applications.

The working principle of the SIT8008BIR3-18S is based on a voltage-controlled oscillator (VCO). The VCO converts a voltage signal into an oscillatory signal. Inside the device, the power supply voltage is changed by a frequency control word (FWO). This FWO is input through an input port, and the voltage of the output port is changed depending on the FWO. This change in voltage causes the frequency of the oscillator to change. Thus, a user can control the output frequency by changing the FWO.

In addition to the voltage-controlled oscillator, the SIT8008BIR3-18S also uses a phase-locked loop (PLL) to generate the required frequency. The PLL is a system consisting of a phase detector, a low-pass filter and a voltage controlled oscillator. The phase comparator compares the phase of the input signal with the phase of the output signal and adjusts the phase of the output signal until it matches the phase of the input signal. Thus, the phase detector is used to compare the phase of the output signal with the phase of the reference signal and adjust it accordingly.

Finally, the SIT8008BIR3-18S also has a digital circuit which enables it to switch the output frequency in steps. This digital circuit is a voltage-controlled switch, which is used to change the frequency of the output signal. The voltage-controlled switch can be controlled by changing the frequency control word or by changing the state of the input signal.

In summary, the SIT8008BIR3-18S is a programmable oscillator which is used in applications such as frequency synthesis, frequency agile transceivers, frequency synthesis, and time-interval measurements. It is capable of generating an oscillatory signal with a programmable frequency and amplitude over specific ranges and is capable of driving multiple loads without needing any additional drive circuitry. Moreover, it features a power supply voltage range of 3.3 – 5.5V and a current capacity of 18mA. It is also suitable for applications where high performance and low power consumption are important factors. Finally, it uses a voltage-controlled oscillator and a phase-locked loop to generate the required frequency and a digital circuit to switch the output frequency in steps.

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