EG-2102CA 156.2500M-PHRAL3

Oscillators are widely used in electrical and electronic circuits to generate repetitive signals or waveforms. They are based on the principle of resonance, which creates an oscillating circuit by providing a stable electrical frequency to a tuned or resonant circuit. The EG-2102CA 156.2500M-PHRAL3 oscillator is one such product that offers controlled frequency operations when applied in two-way radios and analog broadcasting equipment.

The EG-2102CA 156.2500M-PHRAL3 oscillator is a crystal oscillator with a frequency range of 156 to 156.3 MHz and a power dissipation of 0.7 W. This frequency range covers a wide range of two-way radio applications, such as wireless base stations and mobile radios, as well as analog broadcast applications like television transmitters. It also has a low temperature coefficient of -39 ppm/°C, which ensures that the frequency of operation remains stable over a range of temperatures.

The EG-2102CA 156.2500M-PHRAL3 oscillator is based on the Pierce oscillator topology, which uses a quartz crystal as the frequency-determining element. A circuit consisting of an amplifier, a quartz crystal, and two capacitors forms the Pierce oscillator. The quartz crystal is connected in series between two capacitors. By applying a bias current to the quartz crystal, it vibrates at its fundamental frequency and generates an alternating voltage that is amplified by the transistor. The amplified signal is then divided by the capacitors to form a feedback circuit. This feedback signal regulates the oscillator frequency.

Apart from the ingredients in the Pierce oscillator topology, the EG-2102CA 156.2500M-PHRAL3 oscillator also features an automatic frequency control (AFC) circuit. This AFC circuit helps keep the output frequency of the oscillator within a fixed frequency range. It also has a startup current of 5.5 mA, and it can operate at temperatures ranging from -40°C to 85°C.

In conclusion, the EG-2102CA 156.2500M-PHRAL3 oscillator is suitable for a wide range of two-way radio and analog broadcast applications, thanks to its frequency range and AFC circuit. Its low temperature coefficient ensures that the output frequency remains stable over a range of temperatures, and its power dissipation is quite low at 0.7 W. All in all, it is an effective and reliable choice for circuit designers.