NDLI: Comparison between AMCXO and MCXO and necessity to develop AMCXO

Content Provider	IEEE Xplore Digital Library
Author	Wei Zhou Lina Bai Chen Chen Hui Zhou Haixiang Yang
Copyright Year	2002
Description	Author affiliation: Dept. of Meas. & Instrum., Xidian Univ., Xi'an, China (Wei Zhou; Lina Bai; Chen Chen; Hui Zhou; Haixiang Yang)
Abstract	Introduces a new temperature compensated crystal oscillator - AMCXO, a MCXO based on an analogue approach - and compares the performance differences between MCXO and AMCXO and analyses the necessity to develop AMCXO. Combined with their test systems AMCXO and MCXO are both based on computer to generate the control signals to the compensated crystal oscillators according to temperature variation. However, in the practical temperature compensated crystal oscillators the execution devices are much different to each other. MCXO uses a set of digital units including a microprocessor to complete the compensation. In it equations or tables are used to express the relationship between the control signal and temperature. AMCXO uses an analogue memory, which has the same functions as the digital units of MCXO. In AMCXO a curve or figure based on the equations or table is used to express the same relationship. Now AMCXO is mainly based on AT cut crystals. Therefore, in this paper we only compared it with the MCXO based on AT cut crystals.
Sponsorship	IEEE Ultrasonics, Ferroelectrics, & Frequency Control Soc
Starting Page	622
Ending Page	626
File Size	368202
Page Count	5
File Format	PDF
ISBN	0780370821
DOI	10.1109/FREQ.2002.1075957
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-05-31
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Oscillators System testing Capacitors Temperature control Microprocessors Equations Circuit testing Electrodes Control systems Crystals
Content Type	Text
Resource Type	Article

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AMCXO and its test system

An MCXO test system and its function in MCXO performances

Mounting Quartz Oscillator Crystals

The microcomputer compensated crystal oscillator (MCXO)

A novel method for low-power, high-precision timekeeping based on MCXO

Production Statistics of SC (or TTC) Crystals

The functions of the precision frequency measurement technique in MCXO

TCXO Error Due to Aging Adjustment

Performance tests on an MCXO combining ASIC and hybrid construction

Comparison between AMCXO and MCXO and necessity to develop AMCXO

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