DSC1122BI5-148.5000T

DSC1122BI5-148.5000T oscillators are commonly used in many electronic equipment. The product designation indicates that the oscillator is a type of digital, temperature-compensated oscillator (DTCO) and has a frequency of 148.5000 MHz. The characteristics of the oscillator provide stable frequency, low power consumption, and small size.

Application Field

DSC1122BI5-148.5000T oscillators are primarily used in communication devices, such as mobile phone base stations, satellite TV receivers, etc. In addition, this oscillator is also used in industrial applications such as audio frequency synthesizers, digital picture frames and LED lighting.

Working Principle

The main principle of DSC1122BI5-148.5000T oscillators is that it uses temperature compensated crystal oscillators (TCXOs) as their resonant elements. The TCXOs are damped quartz crystal resonators whose resonant frequency is temperature compensated and can be stabilized to produce a highly accurate and stable frequency.

The oscillator consists of an oscillator circuit, which includes an amplifier, a reference capacitor, and a damping resistor. The oscillator circuit is connected to the TCXO via a buffer amplifier, and the resonant frequency of the TCXO is fed back to the oscillator circuit as a reference frequency.

The oscillator circuit uses the reference frequency to determine its output frequency. The oscillator circuit automatically adjusts the characteristics of the amplifier, the reference capacitor, and the damping resistor to ensure output frequency with low power consumption. The amplifier also compensates for the temperature sensitivity of the TCXO.

In addition, the oscillator can also be equipped with a temperature sensor, which can monitor the system’s temperature changes. When the temperature changes, the temperature sensor will send signals to the oscillator circuit, and the oscillator circuit will adjust the characteristics of the amplifier, reference capacitor, and damping resistor according to the temperature change.

The combination of TCXO and temperature compensation provides a highly stable frequency output, allowing DSC1122BI5-148.5000T oscillators to be used for a variety of applications such as communications and industrial applications.