1、BRITISH STANDARD BS EN 60679-4:1998 IEC 60679-4: 1997 Quartz crystal controlled oscillators of assessed quality Part 4: Sectional specification Capability approval The European Standard EN 60679-4:1998 has the status of a British Standard ICS 31.140BSEN 60679-4:1998 This British Standard, having bee
2、n prepared under the directionof the ElectrotechnicalSector Board, was published underthe authorityof the Standards Boardand comes into effect on 15 May 1998 BSI 05-1999 ISBN 0 580 29286 X National foreword This British Standard is the English language version of EN60679-4:1998. It is identical with
3、 IEC60679-4:1997. It supersedes BSEN169100:1993 which will be withdrawn in due course (see note on page2). The UK participation in its preparation was entrusted to Technical Committee EPL/49, Piezoelectric devices for frequency control and selection, which has the responsibility to: aid enquirers to
4、 understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represent
5、ed on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number60000 added to the old number. For instance, IEC27-1 has been renumbered as IEC60027-1. For a period of time during the change over from one numbering system to the other, publi
6、cations may contain identifiers from both systems. Cross-references Attention is drawn to the fact that CEN and CENELEC standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which imple
7、ment international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purpo
8、rt to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front co
9、ver, pages i and ii, theEN title page, pages 2 to 22, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd.
10、 No. Date CommentsBSEN60679-4:1998 BSI 05-1999 i Contents Page National foreword Inside front cover Foreword 2 Text of EN 60679-4 3ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60679-4 February 1998 ICS 31.140 Supersedes EN 169100:1993 English version Quartz crystal controlled oscilla
11、tors of assessed quality Part 4: Sectional specification Capability approval (IEC60679-4:1997) Oscillateurs pilots par quartz sous assurance de la qualit Partie 4: Spcification intermdiaire Agrmentde savoir-faire (CEI 60679-4:1997) Quarzoszillatoren mit bewerteter Qualitt Teil 4: Rahmenspezifikation
12、 Befhigungsanerkennung (IEC 60679-4:1997) This European Standard was approved by CENELEC on1998-01-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterati
13、on. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by trans
14、lation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
15、 Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: ru
16、e de Stassart 35, B-1050 Brussels 1998 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60679-4:1998 EEN 60679-4:1998 BSI 05-1999 2 Foreword The text of document 49/386/FDIS, future edition1 of IEC60679-4, prepared by IECTC49, Piezoe
17、lectric and dielectric devices for frequency control and selection, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN60679-4 on1998-01-01. This European Standard supersedes EN169100:1993. The following dates were fixed: NOTEThe latest date of withdrawal will be fixed w
18、hen all parts of EN60679, which are to replace EN169000 and its related specifications, are approved. Annexes designated “normative” are part of the body of the standard. In this standard, Annex A, Annex B, Annex C and Annex ZA are normative. Annex ZA has been added by CENELEC. Endorsement notice Th
19、e text of the International Standard IEC60679-4:1997 was approved by CENELEC as a European Standard without any modification. Contents Page Foreword 2 1 General 3 1.1 Scope 3 1.2 Normative references 3 2 Preferred values for ratings and guidance on detail specifications 3 2.1 Preferred values for ra
20、tings and characteristics 3 2.2 Information to be prescribed in detail specifications 3 3 Capability approval 4 3.1 Eligibility for capability approval 4 3.2 Structural similarity 4 3.3 Procedures for capability approval 4 3.4 Capability manual 5 Page 3.5 Capability qualifying components (CQC) 5 3.6
21、 Inspection requirements for CQCs 6 3.7 Programme for capability approval 6 3.8 Capability approval report 7 3.9 Abstract of description of capability approval 7 3.10 Modifications likely to affect the capability approval 7 3.11 Initial capability approval 7 3.12 Maintenance of capability approval 1
22、9 3.13 Rework and repair work 20 3.14 Quality conformance inspection 20 3.15 Screening procedures 20 4 Test and measurement procedures 20 Annex A (normative) Example of layout of an abstract ofdescription of capability approval 21 Annex B (normative) Layout of the front page ofaCQC specification for
23、 process control 21 Annex C (normative) Layout of the front pageofaCQC specification to demonstrate a boundary or limit 22 Annex ZA (normative) Normative references tointernational publications with their corresponding European publications Inside back cover Figure 1 Selection of CQCs All methods of
24、 construction 8 Figure 2 Test plan for deposition for electrodematerial CQCs 9 Figure 3 Test plan for bonding CQCs 9 Figure 4 Test plan for component assembly CQCs 10 Figure 5 Test plan for alignment CQCs 10 Figure 6 Test plan for enclosures of CQCs 11 Figure 7 Test plan for mounting CQCs 11 Figure
25、8 Test plan for frequency, input, output and temperature range CQCs 12 Figure 9 Test plan for frequency/load coefficient, frequency/voltage coefficient, external frequency adjustment and FM characteristics CQCs 13 Figure 10 Test plans for climatic performanceCQCs 13 Figure 11 Test plan for frequency
26、 ageing CQCs 14 Table 1 Test schedule for initial capability approval 14 Table 2 Periodic tests for maintenance of capability approval 19 latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 1998-10-01 latest dat
27、e by which the national standards conflicting with the EN have to be withdrawn (dow) EN60679-4:1998 BSI 05-1999 3 1 General 1.1 Scope This part of IEC60679 applies to quartz crystal controlled oscillators as custom built products or as standard catalogue items and whose quality is assessed on the ba
28、sis of capability approval. It prescribes the preferred ratings and characteristics, with appropriate tests and measuring methods contained in the generic specification, IEC60679-1, and gives the general performance requirements to be used in detail specifications for quartz crystal controlled oscil
29、lators. The concept of preferred values is directly applicable to standard catalogue items but does not necessarily apply to custom built products. 1.2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part
30、of IEC60679. At the time of publication, the editions indicated were valid. All normative documents are subject to revision, and parties to agreements based on this part of IEC60679 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicate
31、d below. Members of IEC and ISO maintain registers of currently valid International Standards. IEC 61178-1:1993, Quartz crystal units A specification in the IEC quality assessment system for electronic components (IECQ) Part1: Generic specification. IEC 60679-1:1997, Quartz crystal controlled oscill
32、ators of assessed quality Part1: Generic specification. IEC 60679-4-1, Quartz crystal controlled oscillators of assessed quality Part4-1: Blank detail specification Capability approval 1) . 2 Preferred values for ratings and guidance on detail specifications 2.1 Preferred values for ratings and char
33、acteristics The values given in detail specifications shall preferably be selected from those stated in2.3 of the generic specification IEC60679-1. 2.2 Information to be prescribed in detail specifications (Applies to both custom built and standard catalogue items.) Guidance on the preparation of de
34、tail specifications is given in the future blank detail specification, IEC60679-4-1. Each detail specification shall state all the tests and measurements required for inspection. For standard catalogue items this shall, as a minimum, include the relevant tests given in the blank detail specification
35、, with methods and severities. The following information shall be given in each detail specification. 2.2.1 Outline drawing and dimensions The detail specification shall include a dimensional drawing of the crystal controlled oscillator, and/or reference to an appropriate international standard, to
36、permit easy recognition and to provide information for dimensioning and gauging procedures. The dimensions shall include the overall dimensions of the body of the component, and the size and spacing of the terminations. All dimensions shall be stated in millimetres. Terminal connections shall be ide
37、ntified for all enclosures. When a detail specification covers more than one enclosure, the dimensions and their associated tolerances shall be placed in a table below the drawing. When the configuration is other than described above, the detail specification shall state such dimensional information
38、 as will adequately describe the crystal controlled oscillator. 1) To be published.EN60679-4:1998 4 BSI 05-1999 2.2.2 Marking The detail specification shall prescribe the content of the marking on the crystal controlled oscillator and on the primary package in accordance with2.4 of IEC60679-1. 2.2.3
39、 Ordering information The detail specification shall prescribe that the following information is required when ordering a crystal controlled oscillator: a) quantity; b) detail specification number, issue number and date, and where applicable; c) type of oscillator (e.g. SPXO, VCXO, TCXO, etc.); d) n
40、ominal frequency in kilohertz or megahertz; e) frequency tolerance(s) and operating temperature range; f) full description of any additional requirements to identify the oscillator. 2.2.4 Additional information (not for inspection purposes) The detail specification may include information which is n
41、ot normally required to be verified by the inspection procedure, such as circuit diagrams, curves, drawings and notes needed for clarification. 3 Capability approval 3.1 Eligibility for capability approval Prior to making an application for capability approval a manufacturer shall first obtain manuf
42、acturers inspection approval in accordance with10.2 of IECQC001002. The primary stage of manufacture shall be as defined in3.1 of IEC60679-1. 3.2 Structural similarity Structural similarity is not applicable to capability approval. However, it is applicable to released lots as defined in3.14.1 of th
43、is specification. 3.3 Procedures for capability approval 3.3.1 General Capability approval in quartz crystal controlled oscillator technology covers the complete design, material preparation and manufacturing techniques, including control procedures and tests, the performance limits claimed for the
44、processes and products, that is those specified for the capability qualifying components (CQCs), the range of mechanical structures for which approval is granted. 3.3.2 Application for capability approval In order to obtain capability approval the manufacturer shall apply the rules of procedure give
45、n in11.7 of IECQC001002. In an application for capability approval the manufacturer shall define the boundaries of the capability for which approval is sought, in accordance with3.5 of this specification. 3.3.3 Granting of capability approval Capability approval shall be granted when the manufacture
46、r has prepared a capability manual describing the capability for which he wishes to be approved, to the satisfaction of the National Supervising Inspectorate (NSI), agreed with the NSI the range of CQCs, as defined in11.7.2 of IECQC001002, to be used for the assessment of the capability, successfull
47、y demonstrated that he can design and manufacture components which satisfy the requirements of this sectional specification, within the limits of this capability, prepared a capability approval test report to the satisfaction of the NSI.EN60679-4:1998 BSI 05-1999 5 3.4 Capability manual The manufact
48、urer shall prepare a manual describing his capability (see11.7.2 of IECQC001002) in relation to the technologies involved. The manual shall be approved by the NSI, who shall ensure that it is a true and complete record of the procedures carried out by the manufacturer during the design, production,
49、testing, inspection, and release of his products. The manual is a document that shall be treated as commercial in confidence. The manual shall include the following as a minimum: a general introduction and description of the technologies involved; aspects of customer liaison, including provisions of design rules (if appropriate), and assistance to customers in the formulation of their requirements; a detailed description of the design rules to be used; the procedure for checking that the design rules
