Publication details
| Publication CODE |
Title |
| NBN EN 60444-8:2017 (2017-04) |
MEASUREMENT OF QUARTZ CRYSTAL UNIT PARAMETERS - PART 8 : TEST FIXTURE FOR SURFACE MOUNTED QUARTZ CRYSTAL UNITS |
| |
| Price Excl. VAT |
Total number of pages, tables and drawings |
|
25.00 €
|
3. |
Description
IEC 60444-8:2016(E) describes test fixtures suitable for leadless surface mounted quartz crystal units in enclosures as defined in IEC 61837 (all parts). These fixtures allow the measurement of (series) resonance frequency, (series) resonance resistance, and equivalent electrical circuit parameters L1, C1 and C0 using the measurement techniques specified in IEC 60444-5 and for the determination of load resonance frequency and load resonance resistance according to IEC TR 60444-4 and IEC 60444-11.
Two test fixtures are described in this document:
1) A fixture using the p-network circuit with electrical values as described in IEC 60444-1 for measurements in transmission mode up to 500 MHz. This fixture includes optional means to add physical load capacitors for the measurement of load resonance parameters up to 30 MHz in accordance with IEC 60444-4. The range of load capacitance is 10 pF or more. Calibration of the measurement system and CL adapter board is explained hereinafter.
2) A fixture based on the reflection method, suitable for a frequency range up to 1 200 MHz. No provisions for adding a physical load capacitance are anticipated. Load resonance parameters can be measured by using the method of IEC 60444-11.
This edition includes the following significant technical changes with respect to the previous edition:
a) modification of Clause 1;
b) modification of 5.2;
c) modification of 5.3;
d) modification of 5.4;
e) 6.3 Calibration of the reflection measurement system.
|
| Class |
C
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Available files
ATTENTION: Belgian registered standards (NBN EN or NBN HD) are generally
only available in English or French. Only the cover page is translated
and the document itself is in English or in French.
Very important notice: 98% of the text of the NBN EN 55XXX,
NBN EN 6XXXX comes from the IEC text which is NOT included.
This text can be ordered here:
IEC 60444-8:2016.
For the series NBN EN 50XXX, the standards are however complete.
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DE version
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EN version
|
FR version
|
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Status
| Status |
Registered trilingual Belgian standard EN or FR or DE |
| Situation |
Currently active
Replaces
NBN EN 60444-8:2003
|
|
Origin
| Committee |
TC 49
SURFACE MOUNTED PIEZOELECTRIC DEVICES FOR FREQUENCY CONTROL AND SELECTION
|
| Responsible |
Monsieur DE LEEUW Thierry, Technical Officer
Diamant Building
Bd Auguste Reyers, 80
1030
BRUXELLES
Phone: +32 2 706 85 72
E-mail: thierry.deleeuw@ceb-bec.be
|
Approval
| BEC Approval |
2017-01-19 |
| NBN Approval |
2017-05-18 |
| Registration |
176507 |
| ICS-Code (International Standards Classification) |
31.140
|
| NBN Status |
New |
|
| Date of ratification (d.o.r.) |
2017-01-19 |
| Date of availability (d.a.v.) |
2017-04-07 |
| Date of announcement (d.o.a.) |
2017-04-19 |
| Date of publication (d.o.p.) |
2017-10-19 |
| Date of withdrawal former edition (d.o.w.) |
2020-01-19 |
|
Correspondences with international standards
| Relation |
International standard |
Date |
| is identical to |
EN 60444-8:2017
|
2017-04-07 |
| is identical to |
IEC 60444-8:2016
|
2016-12-15 |
Relations to belgian/foreign publications
| Type |
Origin |
Code |
Date |
| Standard |
Belgium |
EN 60444-5 |
|
|
