SIT1602BC-23-25N-33.000000D

Oscillators: SIT1602BC-23-25N-33.000000D application field and working principle

In today’s electronic world, oscillators are an important part of the circuitry of products such as radios, television sets, computers, and other electronic apparatus. An oscillator is a circuit that generates a periodic signal, a continuous sine wave, at a fixed frequency and phase. The oscillator designed to be used in an application is based on the range of frequency of the application, for example, cellular communication with a range between 350 MHz to 3.6GHz is commonly used for applications needing very high frequency, particularly for the switching system needed for communication.

The SIT1602BC-23-25N-33.000000D is an example of oscillator, and it is used for a range of frequency between 1.0GHz and 3.6GHz. It is designed for high shock and vibration, high temperature stability, and robust flexible output. It is a Symmetricom XO and CXO product, and it is developed by using the latest frequency synthesis technique. It is perfect for cellular base stations, satellite communications, WLAN, WiMAX, and other communication applications.

The SIT1602BC-23-25N-33.000000D consists of an oscillator and servo loop, including the components listed below:

• Crystal Oscillator - The oscillator is a precision quartz controlled oscillator, which is commonly used in most oscillators due to its stability. The circuit used is based on the topology of the Pierce oscillator design with a low noise amplifier.
• Feedback Network - A feedback network is used to provide the oscillation signal to the crystal oscillator. It consists of a resistor in series with the crystal oscillator and a coupling capacitor in parallel to the crystal frequency.
• Servo Loop - The servo loop is used to sense the frequency of the crystal oscillator. It consists of an amplifier, operational amplifier (op amp), and voltage controlled oscillator (VCO). The op-amp is connected in a negative feedback loop and the VCO is connected in a positive feedback loop.
• Output Circuitry - The output circuitry consists of a buffer amplifier to provide isolation from the oscillator circuit and a power amplifier to generate a strong output signal.

The working principle of this oscillator is fairly simple. The quartz crystal is used to generate a precise frequency by means of a voltage controlled oscillator circuit. The output frequency of the oscillator is then varied by varying the voltage applied to the crystal oscillator.

The SIT1602BC-23-25N-33.000000D oscillator is ideal for a range of applications including cellular base stations, satellite communications, WLAN, WiMAX, and other communication applications. The high shock and vibration, high temperature stability, and robust flexible output make the oscillator perfect for these types of applications. Additionally, the oscillator can be modified to suit the different requirements of various applications.