DOC102F-020.0M Crystals, Oscillators, Resonators

Frequency Stability:	±100ppb
Current - Supply (Disable) (Max):	--
Height - Seated (Max):	0.307" (7.80mm)
Size / Dimension:	0.556" L x 0.358" W (14.10mm x 9.10mm)
Package / Case:	6-SMD, No Lead
Mounting Type:	Surface Mount
Ratings:	--
Current - Supply (Max):	--
Operating Temperature:	-40°C ~ 85°C
Series:	DOC
Voltage - Supply:	3.3V
Output:	LVCMOS
Function:	--
Frequency:	20MHz
Type:	OCXO
Base Resonator:	Crystal
Part Status:	Discontinued at Digi-Key
Packaging:	Digi-Reel®

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Oscillators: DOC102F-020.0M Application Field and Working Principle

Oscillators are a type of electronic circuit responsible for generating a repetitive signal, usually a sine wave, or related waveform, such as a square wave, with a precise frequency. Oscillators are used in order to maintain stability and reliability in all digital, analog, and radio frequency (RF) systems.This article will discuss the application field and working principle of the DOC102F-020.0M Oscillator.

Application Field

The DOC102F-020.0M Oscillator is a quartz crystal-based device and has a plethora of application fields. Its range of applications include but is not limited to:

• Clocking of microprocessors and controllers;
• Servo loop controllers;
• Voltage controlled oscillators for CMOS ICs;
• Electronic watches;
• Computer peripheral equipment; and
• RF communication systems.

Working Principle

The DOC102F-020.0M Oscillator is based on vibrating quartz, which acts as an automatic frequency compensator, and is capable of driving transistors, capacitors, and inductors to work together.When a voltage is coupled to the quartz crystal, it makes it vibrate and produce a resonating sound. This sonic energy produces a current and a voltage that fluctuates with the frequency of the quartz crystal - which is determined by the size and shape of the piezoelectric element.The capacitor and inductor in the circuit function together to add up the high-frequency voltages, which triggers the timer, causing an oscillation to begin. The frequency of the oscillation is determined by the crystal, and the amplitude of the oscillation is determined by the resistor.This frequency acts as a timing signal for a microcontroller or other type of digital circuit, and the square wave produced by the Oscillator is used as the data input.The Piezoelectric principle of the quartz crystal creates a vibration that results in an oscillating current – and thus, within the Oscillator, a vibration of a certain predefined frequency. Because the frequency of the Oscillator is extremely precise, and continues to provide the same frequency for extended periods of time, even when under varying voltages, an oscillator can provide reliable operation for a wide range of applications.The DOC102F-020.0M Oscillator\'s application field is broad and its working principle is precise, so it therefore serves several different needs in a variety of modern electronics.

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