SIT1602BC-72-25E-50.000000G

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Oscillators

Oscillators are a type of electronic circuitry that create an alternating electrical current or voltage in the form of a repeating sine wave or pulse. The most common type of oscillator is based on an amplifier and a frequency-determining element, such as a resonator or related circuit, which is then connected to a feedback loop.

SIT1602BC-72-25E-50.000000G

SIT1602BC-72-25E-50.000000G is an example of a high-frequency oscillator produced by the company named SiTime that is designed for wireless Bluetooth, ZigBee, WLAN, and Ultra Wideband (UWB) applications. The device is composed of a sterling oscillator die, a frequency generator, a temperature compensator, and a voltage regulator surrounded by a standard IC package.

Application Field

The oscillator is used in many radio-frequency applications, such as Bluetooth, Wi-Fi, mobile phones, GPS receivers, and satellite communication. It can also be used in FPGA-based waveform synthesis as well as in digital filtering, frequency modulation, and others. The device has a high stable frequency and is able to maintain the output frequency with a linearity within 0.2%, making it suitable for a wide range of frequencies.

Working Principle

The SIT1602BC-72-25E-50.000000G oscillator works by creating a feedback loop that helps to create an alternating voltage or current in the form of a repeating sine wave or pulse. An internal oscillator die runs in resonance with an external resonator (also known as an external crystal) to generate a constant frequency. It then passes through a frequency multiplier and voltage regulator, and a temperature compensator module adjusts the output frequency based on the ambient temperature. The amplified signal is fed back into the resonator, creating a feedback loop, which helps maintain the oscillator\'s bias current and stabilize the frequency over time.

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