QUARTZ CRYSTAL CONTROLLED OSCILLATORS OF ASSESSED QUALITY - SECTIONAL SPECIFICATION - CAPABILITY APPROVAL
International Electrotechnical Committee
FOREWORD
1 General
1.1 Scope
1.2 Normative references
2 Preferred values for ratings and guidance on detail
specifications
2.1 Preferred values for ratings and characteristics
2.2 Information to be prescribed in detail specifications
3 Capability approval
3.1 Eligibility for capability approval
3.2 Structural similarity
3.3 Procedures for capability approval
3.4 Capability manual
3.5 Capability qualifying components (CQC)
3.6 Inspection requirements for CQCs
3.7 Programme for capability approval
3.8 Capability approval report
3.9 Abstract of description of capability approval
3.10 Modifications likely to affect the capability
approval
3.11 Initial capability approval
3.12 Maintenance of capability approval
3.13 Rework and repair work
3.14 Quality conformance inspection
3.15 Screening procedures
4 Test and measurement procedures
Tables
1 Test schedule for initial capability approval
2 Periodic tests for maintenance of capability approval
Figures
1 Selection of CQCs - All methods of construction
2 Test plan for deposition for electrode material CQCs
3 Test plan for component assembly CQCs
4 Test plan for alignment CQCs
5 Test plan for alignment of CQCs
6 Test plan for enclosures of CQCs
7 Test plan for mounting CQCs
8 Test plan for frequency, input, output and temperature
range CQCs
9 Test plan for frequency/load coefficient, frequency/
voltage coefficient, external frequency adjustment
and FM characteristics CQCs
10 Test plans for climatic performance CQCs
11 Test plan for frequency ageing CQCs
Annexes
A Example of layout of an abstract of description of
capability approval
B Layout of the front page of a CQC specification for
process control
C Layout of the front page of a CQC specification to
demonstrate a boundary or limit
Applicable to quartz crystal controlled oscillators as custom built products or standard catalogue items, with assessed quality based on capability approval. Defines preferred ratings and characteristics, together with relevant tests and measuring procedures included in the generic specification, together with general performance requirements for use in detail specifications for quartz crystal controlled oscillators. The preferred values concept applies directly to standard catalogue items but not necessarily to custom built products.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 49 |
