{"id":385665,"date":"2024-10-20T03:31:47","date_gmt":"2024-10-20T03:31:47","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-60444-62021\/"},"modified":"2024-10-26T06:24:57","modified_gmt":"2024-10-26T06:24:57","slug":"bs-en-iec-60444-62021","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-60444-62021\/","title":{"rendered":"BS EN IEC 60444-6:2021"},"content":{"rendered":"

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
5<\/td>\nAnnex ZA (normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n
7<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
8<\/td>\nFOREWORD <\/td>\n<\/tr>\n
10<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
11<\/td>\n1 Scope
2 Normative references
3 Terms and definitions
4 DLD effects
4.1 Reversible changes in frequency and resistance <\/td>\n<\/tr>\n
12<\/td>\n4.2 Irreversible changes in frequency and resistance
4.3 Causes of DLD effects
5 Drive levels for DLD measurement <\/td>\n<\/tr>\n
13<\/td>\n6 Test methods
6.1 Method A (fast standard measurement method)
6.1.1 Testing at two drive levels <\/td>\n<\/tr>\n
14<\/td>\n6.1.2 Testing according to specification
Figure 1 \u2013 Maximum tolerable resistance ratio for the drive level dependence as a function of the resistances or <\/td>\n<\/tr>\n
15<\/td>\n6.2 Method B (Multi-level reference measurement method) <\/td>\n<\/tr>\n
17<\/td>\nAnnex A (normative) Relationship between electrical drive level and mechanical displacement of quartz crystal units <\/td>\n<\/tr>\n
20<\/td>\nAnnex B (normative) Method C: DLD measurement with oscillation circuit
Figure B.1 \u2013 Insertion of a quartz crystal unit in an oscillator <\/td>\n<\/tr>\n
21<\/td>\nFigure B.2 \u2013 Crystal unit loss resistance as a function of dissipated power <\/td>\n<\/tr>\n
22<\/td>\nFigure B.3 \u2013 Behaviour of the of a quartz crystal unit
Figure B.4 \u2013 Block diagram of circuit system <\/td>\n<\/tr>\n
23<\/td>\nFigure B.5 \u2013 Installed in scanned drive level range
Figure B.6 \u2013 Drive level behaviour of a quartz crystal unit if \u2212Rosc = 70 \u03a9 is used as test limit in the Annex B test <\/td>\n<\/tr>\n
24<\/td>\nFigure B.7 \u2013 Principal schematic diagram of the go\/no-go test circuit <\/td>\n<\/tr>\n
25<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Measurement of quartz crystal unit parameters – Measurement of drive level dependence (DLD)<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2021<\/td>\n26<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":385674,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-385665","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/385665","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/385674"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=385665"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=385665"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=385665"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}