crystal oscillator: meaning, definition, pronunciation and examples
C2Technical/Specialised
Quick answer
What does “crystal oscillator” mean?
A precise electronic component that uses the mechanical resonance of a vibrating crystal to generate a stable clock signal.
Audio
Pronunciation
Definition
Meaning and Definition
A precise electronic component that uses the mechanical resonance of a vibrating crystal to generate a stable clock signal.
A fundamental electronic circuit used to provide precise timing signals in devices ranging from watches and microcontrollers to communication systems and computers, ensuring accurate synchronization of operations.
Dialectal Variation
British vs American Usage
Differences
No lexical differences. Spelling of related terms may differ (e.g., 'centre frequency' vs. 'center frequency').
Connotations
None; purely technical term.
Frequency
Equally frequent in both technical registers (electronics, engineering, computing).
Grammar
How to Use “crystal oscillator” in a Sentence
The [device] uses a crystal oscillator to [function]A crystal oscillator [frequency] is required for [application]To stabilise the frequency, we added a crystal oscillator.Vocabulary
Collocations
Examples
Examples of “crystal oscillator” in a Sentence
verb
British English
- The circuit is designed to oscillate using a crystal.
- The microcontroller oscillates at a frequency determined by its external crystal.
American English
- The system oscillates based on the crystal reference.
- We need to make the circuit oscillate stably.
adverb
British English
- The signal is generated crystal-stably.
- The device runs crystal-precisely.
American English
- The clock runs crystal-accurately.
- The system is synchronized crystal-reliably.
adjective
British English
- The crystal-controlled clock was remarkably accurate.
- We measured the oscillator's crystal-derived signal.
American English
- The crystal-based timing is essential.
- It's a crystal-referenced frequency standard.
Usage
Meaning in Context
Business
Rare, except in procurement or technical sales specifications (e.g., 'The BOM lists three crystal oscillators.').
Academic
Common in papers and textbooks on electronics, signal processing, and embedded systems design.
Everyday
Virtually never used. A layperson would say 'the clock' or 'timer' inside a device.
Technical
The primary and precise term used in schematics, datasheets, and engineering discussions.
Vocabulary
Synonyms of “crystal oscillator”
Strong
Neutral
Weak
Vocabulary
Antonyms of “crystal oscillator”
Watch out
Common Mistakes When Using “crystal oscillator”
- Pronouncing 'oscillator' with a soft 'c' (/s/); it's /ˈɒsɪleɪtə/ (hard 'c' /k/ sound).
- Confusing 'crystal oscillator' (the active circuit) with 'crystal' or 'crystal resonator' (the passive component).
- Using it in everyday conversation instead of simpler terms like 'clock'.
FAQ
Frequently Asked Questions
Not exactly. In casual speech, engineers might say 'crystal' to mean the whole oscillator. Technically, the 'crystal' or 'crystal resonator' is the piezoelectric quartz component inside the 'crystal oscillator' circuit which also contains supporting electronics.
Quartz is piezoelectric. When an electric field is applied, it vibrates at a very precise natural frequency. This mechanical vibration can be used to stabilise an electronic oscillator circuit with exceptional accuracy.
In nearly every modern electronic device: smartphones, computers, watches, radios, GPS units, car engine control units, and digital cameras. Any device that needs precise timing uses one.
Megahertz (MHz). It indicates the frequency of the clock signal the oscillator produces, meaning millions of cycles per second. Common values are 32.768 kHz for watches, 16 MHz for many microcontrollers, and multiples like 100 MHz for processors.
A precise electronic component that uses the mechanical resonance of a vibrating crystal to generate a stable clock signal.
Crystal oscillator is usually technical/specialised in register.
Crystal oscillator: in British English it is pronounced /ˈkrɪstl ˈɒsɪleɪtə/, and in American English it is pronounced /ˈkrɪstl ˈɑːsəleɪtər/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “The heart of the clock”
- “(as) regular as a quartz crystal”
Learning
Memory Aids
Mnemonic
Imagine a CRYSTAL glass that rings when tapped. An OSCILLATOR keeps it ringing perfectly in time. Together, they create the precise 'tick' for electronics.
Conceptual Metaphor
THE HEARTBEAT OF THE SYSTEM.
Practice
Quiz
What is the primary function of a crystal oscillator in a digital system?