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BSI 24/30493194 DC:2024 Edition

$13.70

BS EN IEC 60679-2 Piezoelectric, dielectric and electrostatic oscillators of assessed quality – Part 2: Guide to the use of quartz crystal oscillators

Published By Publication Date Number of Pages
BSI 2024 42
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PDF Catalog

PDF Pages PDF Title
7 FOREWORD
9 INTRODUCTION
10 1. Scope
2. Normative references
3. Terms and definitions
4. Oscillating principle of crystal oscillators
13 5. Classification of crystal oscillators
5.1 General
14 5.2 SPXO
15 5.3 TCXO
16 5.4 VCXO
18 5.5 OCXO
19 5.6 DCXO (Disciplining Control Crystal Oscillator)
20 6 Frequency stability of crystal oscillators
21 7 Specification and measurement of oscillator performance
7.1 General
7.2 Environmental effects
23 7.3 Random frequency variations
24 7.4 Differential output of crystal oscillators
8 Key parameters of specification
8.1 General
25 8.2 Stabilization time
8.2.1 General
26 8.2.2 SPXO
8.2.3 TCXO
8.2.4 OCXO
8.2.5 DCXO
27 8.3 Frequency adjustment range
8.3.1 General
8.3.2 SPXO
8.3.3 TCXO
8.3.4 OCXO
8.3.5 DCXO
28 8.4 Frequency stability under steady-state temperature conditions
9 Characteristics to be specified in article sheets
33 10 Usage precautions for crystal oscillators
10.1 General
10.2 Power supply
10.2.1 Internal resistance of the power supply
10.2.2 Noise from the power supply
34 10.3 Input control voltage
10.3.1 Linearity of frequency change
10.3.2 Polarity of control voltage
35 10.4 EMC (Electromagnetic Compatibility)
10.5 Selecting bypass capacitors
36 10.6 PLL oscillators
37 10.7 ESD (Electric-Static Discharge)
38 Annex A (informative) Differential output of crystal oscillators
A.1 Clock rate and signal level
39 A.2 Features of differential output wave
A.3 Advantage and precaution of differential signal
40 A.4 Advantage of differential output oscillator
A.5 Differential output signal evaluation
41 Bibliography
BSI 24/30493194 DC
$13.70