FD4000123

Oscillators: FD4000123

The FD4000123 is an oscillator of frequency division that has been used widely in many applications because of its reliability and size. It is a negative-edge triggered device that consists of two resistors, one capacitor and two transistors. In order to work, it needs a power supply and an active clock signal which serves as a reference to the oscillator. This product is also capable of handling both synchronous and asynchronous signals and is designed in a manner that is easily accessible to users.

Application Field

The FD4000123 oscillator has very wide range of applications, including audio and video engineering, telecom systems, mobile telephony, radio and satellite communications, and precision timing systems. Some of the most common applications are:

• In cellular systems, the oscillator can be used as a reference for frequency division multiplexing (FDM);
• In digital television and cable systems, the oscillator can provide the reference signal for synchronous quadrature phase shift keying (QPSK) or quadrature amplitude modulation (QAM) modulation;
• In RF communications systems, the oscillator can be used for direct digital synthesis (DDS);
• In automotive electronics, the device can be used to control the timing of engine management systems;
• In computer components, the oscillator can be used for synchronization purposes;
• In industrial control systems, the oscillator can be used to maintain precision timing;

Working Principle

The FD4000123 oscillator works on the principle of frequency division. This type of oscillator uses the negative edge of an active clock signal, that is, when the clock signal falls from a logically high to a logically low state, it causes the oscillator to reset and start generating a frequency that is divided down from the reference clock signal. The division ratio is determined by the ratio of the resistor and capacitor values. The oscillator continues producing a frequency divided down from the reference signal until the clock signal goes from low state to high state.

The oscillator also has an internal voltage regulator that ensures the generated frequency remains consistent even under varying supply voltages. This voltage regulator also keeps the frequency within specified accuracy levels.

Conclusion

The FD4000123 oscillator is an extremely reliable device that offers a lot of flexibility when it comes to meeting the needs of timing and synchronizing devices. Its frequency division-based design ensures that the generated frequency remains constant even under varying supply voltages and the dual transistor design provides extra reliability. It has been widely used due to its reliability and small size, in a variety of applications including audio and video engineering, telecom systems, mobile telephony, radio and satellite communications, and precision timing systems.