FN1840018

Series:	SaRonix-eCera™ FN
Packaging:	Bulk
Part Status:	Active
Base Resonator:	Crystal
Type:	XO (Standard)
Frequency:	18.432MHz
Function:	Enable/Disable
Output:	CMOS
Voltage - Supply:	3.3V
Frequency Stability:	±50ppm
Operating Temperature:	-20°C ~ 70°C
Current - Supply (Max):	15mA
Ratings:	--
Mounting Type:	Surface Mount
Package / Case:	4-SMD, No Lead
Size / Dimension:	0.276" L x 0.197" W (7.00mm x 5.00mm)
Height - Seated (Max):	0.071" (1.80mm)
Current - Supply (Disable) (Max):	10µA

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Oscillators: FN1840018 Application Field and Working Principle

Oscillators are electronic circuits that produce a continuous series of alternating high and low signals. The FN1840018 oscillator is one of the most popular oscillator chips produced by Fairchild Semiconductor, both for the amateur and professional markets. It is widely used in digital and analog applications, for both general-purpose and specific purposes. Here, we\'ll look at how it works and where it can be used.

FN1840018 Overview

The FN1840018 is a dual-configuration oscillator chip, meaning it can be used as a single oscillator or as two parallel oscillators. It uses a Schmitt Trigger for frequency generation and has an output frequency range of 0.45 to 100MHz. It has an on-board voltage regulator, allowing it to function with a supply voltage of 2.2V to 5.5V. It also has an automatic shut-down mode which reduces power consumption by up to 80 percent if no signal is detected for a period of time.

General-Purpose Applications of the FN1840018 Oscillator

One of the most common applications for the FN1840018 is in timing applications. It has a wide range of frequency options, making it suitable for both short and long-term applications such as clock-synchronization and data-acquisition. The FN1840018 is also commonly used in embedded systems such as IoT devices or medical equipment, where precise timing is required. It can be used to control the timing of actuators, motors, and other devices, ensuring that they operate reliably and accurately.The FN1840018 is also used in audio applications, as it is able to generate low-level audio signals needed for headphone amplifiers, speakers, and other audio components.

Specific-Purpose Applications of the FN1840018 Oscillator

The FN1840018 oscillator is often used in radio communication systems to synchronize signal transmission and reception. In addition, it is used in radar systems to generate low-frequency signals that can be used to locate objects in altitude or velocity. It is also used in satellite navigation systems to generate precise timing signals.The FN1840018 is also used in sensor-based systems, such as environmental monitoring systems. It can be used to generate a low-frequency signal that triggers a sensor whenever a predetermined temperature or pressure changes.

Working Principle of the FN1840018 Oscillator

The FN1840018 oscillator uses a Schmitt Trigger circuit to generate a square wave signal at a predefined frequency. This signal is then passed through the integrated voltage regulator, which adjusts the voltage applied to the oscillator to maintain a stable output frequency. The Schmitt Trigger circuit relies on two reference voltages, usually set at or near the supply voltage. When the signal voltage rises above one reference voltage, the circuit switches and sends a higher voltage through the regulator. When the signal voltage falls below the other reference voltage, the circuit switches and sends a lower voltage through the regulator. This cycle continues as long as the input voltage is varying, resulting in a steady square-wave output of predefined frequency.

Conclusion

The FN1840018 oscillator chip is a popular and versatile choice for many different applications, from high-precision timing to sensor-based systems. It is able to generate precise square-wave signals of a preset frequency, with an adjustable input voltage allowing for a wide range of applications. It is also low-power and has an automatic shut-down mode which drastically reduces power consumption when the signal is not being used.

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