SIT9005ACA1G-18NN

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Programmable oscillators are electronic components used to generate a sine wave, square wave, or other type of periodic signal for a variety of uses. The SIT9005ACA1G-18NN is one type of programmable oscillator that can be used for numerous applications. This article will discuss the application field and working principle of the SIT9005ACA1G-18NN.

The SIT9005ACA1G-18NN is a low-cost, low-power, ultra-stable programmable oscillator designed for applications requiring stable frequency selection, low EMI, high accuracy, and low jitter performance. It is offered in a ceramic package and can be programmed up to +25MHz or -15MHz. The SIT9005ACA1G-18NN features a user-programmable circuit option that allows it to be used in a wide variety of applications.

The SIT9005ACA1G-18NN can be used in telecommunications, networking, military, and industrial applications. It can also be used for test and measurement applications such as frequency selection, frequency tracking and stabilization, auto-frequency control, frequency synthesis, or PLL frequency control. Its low EMI and jitter performance make it especially suitable for applications requiring tight EMI and jitter performance.

The SIT9005ACA1G-18NN is an analog programmable oscillator based on a voltage-controlled oscillator (VCO) circuit. It has a user-programmable range and can be adjusted to provide output frequencies from 0MHz to +25MHz or -15MHz. The frequency of the oscillator is determined by the capacitance of a tuning capacitor, known as the VCO capacitor, which is connected to the VCO circuit. The frequency of the oscillator is controlled with an analog voltage, typically a DC voltage.

The SIT9005ACA1G-18NN has a low-power reference oscillator. This oscillator is connected to the VCO and provides an initial frequency signal that is used to set the operating frequency of the main oscillator. The reference oscillator is adjustable and can be used to fine-tune the operating frequency to the desired level.

The SIT9005ACA1G-18NN also features a wide range of signal acquisition and control features, including an internal voltage reference, adjustable current source, user-configurable phase-locked loop (PLL), and adjustable supply voltage. These features provide exceptional control and flexibility for the user, allowing for wide frequency range and precise frequency tuning.

In addition, the SIT9005ACA1G-18NN provides on-board trimming and frequency adjustment functions. This allows the user to fine-tune or calibrate the frequency of the programmable oscillator to achieve the desired accuracy or stability. The trim functions are available in EEPROM or ROM versions, with the ROM version being the most commonly used.

Finally, the SIT9005ACA1G-18NN has a low-noise power supply, which is essential for increasing the accuracy and stability of the output frequency. The low-noise power supply also improves system noise immunity, minimizing the introduction of electrical noise into the oscillator circuit.

In conclusion, the SIT9005ACA1G-18NN is a programmable oscillator designed for a variety of applications, from telecommunications to test and measurement. It has a user-programmable frequency range from 0 MHz to +25MHz or -15MHz and features a variety of features to provide excellent frequency accuracy and stability. Its low-noise power supply and adjustable current source, voltage reference, and phase-locked loop facility make it suitable for a wide range of applications.

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