FA-238 28.63636MB30V-K3

Crystals are a key component in many industrial and consumer electronics, providing communications and electronic systems with precise timing signals that allow for data synchronization. The FA-238 28.63636MHz30V-K3 is one type of crystal oscillator, a device used for providing timekeeping for various electronic and electromechanical systems. This article provides an overview of this crystal and examines its application fields, working principles, and selection considerations.

The FA-238 28.63636MHz30V-K3 is an electronic resonator that generates a precise frequency at which an electrical signal oscillates between two voltage levels. It is a quartz crystal oscillator, meaning that it uses a piezoelectric quartz crystal as its timing element. The crystal material is cut into a specific shape, which determines its resonant frequency, and coupled with two electrodes, one each of opposite polarity, for connecting to an external circuit. When an oscillating voltage is applied to the electrodes, it causes the crystal to vibrate at its resonant frequency. The oscillatory voltage is then provided to the external circuit and used for timing synchronization.

The FA-238 28.63636MHz30V-K3 is suitable for a wide range of applications, including remote controls, televisions, digital cameras, portable devices, and automotive electronics. It is specifically designed to operate in a wide temperature range (from -20°C to 70°C) and provides a highly stable output frequency with a temperature stability of ±20ppm over operating temperature. The device also has an excellent shock and vibration resistance, making it suitable for applications where shocks and vibration could affect the accuracy of the timing signal.

The FA-238 28.63636MHz30V-K3 utilizes a Pierce oscillator circuit, a mature and commonly used electronic configuration. The Pierce oscillator consists of an amplifier, a timing element, and resistive and capacitive elements, connected in a specific arrangement. When an oscillating voltage is applied to the amplifier input, it increases the oscillation amplitude of the timing element until it reaches its resonant frequency. The output voltage corresponds to the input signal and is provided to the external circuit for timing synchronization.

When selecting a crystal oscillator for an application, there are various factors to consider. Key considerations include the frequency accuracy, temperature stability, shock and vibration resistance, load capacitance requirements, and package size. The FA-238 28.63636MHz30V-K3 is an ideal choice for applications that require a highly accurate and reliable output frequency, and its wide temperature range and shock and vibration resistance make it suitable for use in harsh environmental conditions.

In summary, the FA-238 28.63636MHz30V-K3 is a quartz crystal oscillator that is capable of generating highly accurate and reliable timing signals. It uses a piezoelectric quartz crystal as its timing element and utilizes a Pierce oscillator circuit for its operation. The device is suitable for a variety of applications and its wide temperature range, shock and vibration resistance, and small package size make it an ideal choice when selecting a crystal oscillator for electronic and electromechanical systems.