Acronyms Used by Electrical Engineers
"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",
"N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"

Oscillator Acronyms

CXO - Clock Crystal Oscillator
DRO - Dielectric Resonator Oscillators
DTCXO - Digitally Temperature Controlled Crystal Oscillator
EMXO - Evacuated Miniature Crystal Oscillator
FCXO - Frequency Controlled Crystal Oscillator
HPXO - High Precision Crystal Oscillator
MCF - Monolithic Crystal Filter
MCXO - Microprocessor Compensated Crystal Oscillator
OCXO - Oven Controlled Oscillator
OCVCXO - Oven Controlled Voltage Controlled Oscillator
PXO - Precision Oscillator
PXO - Programmable Crystal Oscillator
Rbxo - rubidium-crystal oscillator
RTC - Real-time clock
SAW - Surface Acoustic Wave
SPXO - Simple Packaged Crystal Oscillators
TCXO - Temperature Compensated Oscillator
TCVCXO - Temperature Compensated Voltage Controlled Oscillator
VCO - Voltage Controlled Oscillator
VCXO - Voltage Controlled Crystal Oscillator
VCSO - Voltage Controlled SAW Oscillator
VCSO - Voltage Controlled Sine wave Oscillator
VCTCXO - Voltage Controlled TCXO
XCO - Crystal Clock Oscillator
XO - Crystal Oscillator

Osc. Performance Chart
Frequency accuracy vs. power usage for different types
Oscillator Accuracy vs. Type

The chart shows the accuracy of different types of Oscillators and frequency standards vs the amount of power they require. The Oscillator [XO] has the lowest accuracy and also requires the least amount of power. The Rubidium [Rb] and Cesium [Cs] standards are the most accurate, but also consume the most power [Atomic Clock Standards].
The Temperature Controlled Oscillator [TCXO] and the Oven Controlled Oscillator [OCXO] devices are the two most common styles that would be found on a Printed Wiring Board [PWB]. Note that the OCXO device consumes much more power than the TCXO device, but is also has better accuracy.

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