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32.768kHz TCXO - 편집 역사
2026-04-26T09:58:19Z
이 문서의 편집 역사
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https://www.togotech.co.kr/index.php?title=32.768kHz_TCXO&diff=91394&oldid=prev
2025년 11월 29일 (토) 04:26에 Togotech님의 편집
2025-11-29T04:26:45Z
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← 이전 판</td>
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">2025년 11월 29일 (토) 04:26 판</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l2" >2번째 줄:</td>
<td colspan="2" class="diff-lineno">2번째 줄:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li> [[전자부품]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li> [[전자부품]]</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"><ol></del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"><li> [[수정부품]]</del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"><ol></del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"><li> [[발진기]]</del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li> [[TCXO]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li> [[TCXO]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li> [[32.768kHz TCXO]] - 이 페이지</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li> [[32.768kHz TCXO]] - 이 페이지</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></ol></del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"></ol></del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li>참고</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li>참고</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><li> [[<del class="diffchange diffchange-inline">32768 수정진동자 </del>측정]]</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><li> [[<ins class="diffchange diffchange-inline">32.768kHz 수정공진기 </ins>측정]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li> [[RTC]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li> [[RTC]]</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><li> [[<del class="diffchange diffchange-inline">Xtal </del>발진기 출력 프루빙]]</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><li> [[<ins class="diffchange diffchange-inline">수정 </ins>발진기 출력 프루빙]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l78" >78번째 줄:</td>
<td colspan="2" class="diff-lineno">72번째 줄:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><li>구입품 하나</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><li>구입품</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline"><ol></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline"><li>최초구입품 </ins>하나</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><gallery></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><gallery></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>image:ds32khz01_001.jpg</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>image:ds32khz01_001.jpg</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></gallery></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></gallery></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><li>이후 AliExpress에서 10개씩 판매한다는 ShenZhen KeLeWei Store에서 2023/05/24 22.49$로 구입의뢰했으나, 도착한 제품은 아래와 같은 800V 6.6A N-Ch[[MOSFET]]. 이의신청하여 환불받음.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><gallery></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">image:ds32khz01_001_001.jpg | SST80R850S SSS(Shanghai Super Semiconductor)</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></gallery></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ol></ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li>주파수 측정  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li>주파수 측정  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l94" >94번째 줄:</td>
<td colspan="2" class="diff-lineno">95번째 줄:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><li> [[<del class="diffchange diffchange-inline">Xtal </del>온도특성]] - 1</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><li> [[<ins class="diffchange diffchange-inline">수정공진기 </ins>온도특성]] - 1</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li>1차 측정</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li>1차 측정</div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l178" >178번째 줄:</td>
<td colspan="2" class="diff-lineno">179번째 줄:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li>측정 방법</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li>측정 방법</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><gallery></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><gallery></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>image:ds3231_01_002.jpg | Vcc에 [[디커플링 <del class="diffchange diffchange-inline">캐퍼시터</del>]]를 연결하였다.</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>image:ds3231_01_002.jpg | Vcc에 [[디커플링 <ins class="diffchange diffchange-inline">커패시터</ins>]]를 연결하였다.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></gallery></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></gallery></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li>각종 주파수 특성 측정 엑셀 파일  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li>각종 주파수 특성 측정 엑셀 파일  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><li> [[디커플링 <del class="diffchange diffchange-inline">캐퍼시터</del>]], [[바이패스 <del class="diffchange diffchange-inline">캐퍼시터</del>]] 연결하지 않고 측정하면</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><li> [[디커플링 <ins class="diffchange diffchange-inline">커패시터</ins>]], [[바이패스 <ins class="diffchange diffchange-inline">커패시터</ins>]] 연결하지 않고 측정하면</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li>시간에 따라</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li>시간에 따라</div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l190" >190번째 줄:</td>
<td colspan="2" class="diff-lineno">191번째 줄:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></gallery></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></gallery></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></ol></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><li> [[<del class="diffchange diffchange-inline">Xtal </del>온도특성]]</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><li> [[<ins class="diffchange diffchange-inline">수정공진기 </ins>온도특성]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><li>[[디커플링 <del class="diffchange diffchange-inline">캐퍼시터</del>]]를 연결하지 않았다.</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><li>[[디커플링 <ins class="diffchange diffchange-inline">커패시터</ins>]]를 연결하지 않았다.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><gallery></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><gallery></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>image:ds3231_02_006.png | 온도프로파일</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>image:ds3231_02_006.png | 온도프로파일</div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l227" >227번째 줄:</td>
<td colspan="2" class="diff-lineno">228번째 줄:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li>Vcc에 따른 주파수 특성 엑셀 파일  </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><li>Vcc에 따른 주파수 특성 엑셀 파일  </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><ol></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><li> [[디커플링 <del class="diffchange diffchange-inline">캐퍼시터</del>]] 없이 최초 측정</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><li> [[디커플링 <ins class="diffchange diffchange-inline">커패시터</ins>]] 없이 최초 측정</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><gallery></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><gallery></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>image:ds3231_02_003.png | 항상 높은 Vcc에서 잡음이 측정된다.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>image:ds3231_02_003.png | 항상 높은 Vcc에서 잡음이 측정된다.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></gallery></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div></gallery></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><li> [[디커플링 <del class="diffchange diffchange-inline">캐퍼시터</del>]] 연결하고 측정하면</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><li> [[디커플링 <ins class="diffchange diffchange-inline">커패시터</ins>]] 연결하고 측정하면</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><gallery></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><gallery></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>image:ds3231_02_004.png | Vcc 변화에 따라 잡음이 발생되지 않는다.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>image:ds3231_02_004.png | Vcc 변화에 따라 잡음이 발생되지 않는다.</div></td></tr>
</table>
Togotech
https://www.togotech.co.kr/index.php?title=32.768kHz_TCXO&diff=67063&oldid=prev
Togotech: 새 문서: 32.768kHz TCXO <ol> <li> 전자부품 <ol> <li> 수정부품 <ol> <li> 발진기 <ol> <li> TCXO <ol> <li> 32.768kHz TCXO - 이 페이지 </ol> </ol> </ol> <li>참...
2023-06-01T07:45:40Z
<p>새 문서: 32.768kHz TCXO <ol> <li> <a href="/index.php/%EC%A0%84%EC%9E%90%EB%B6%80%ED%92%88" title="전자부품" data-bs-title="전자부품">전자부품</a> <ol> <li> <a href="/index.php/%EC%88%98%EC%A0%95%EB%B6%80%ED%92%88" title="수정부품" data-bs-title="수정부품">수정부품</a> <ol> <li> <a href="/index.php/%EB%B0%9C%EC%A7%84%EA%B8%B0" title="발진기" data-bs-title="발진기">발진기</a> <ol> <li> <a href="/index.php/TCXO" title="TCXO" data-bs-title="TCXO">TCXO</a> <ol> <li> <a href="/index.php/32.768kHz_TCXO" title="32.768kHz TCXO" data-bs-title="32.768kHz_TCXO">32.768kHz TCXO</a> - 이 페이지 </ol> </ol> </ol> <li>참...</p>
<p><b>새 문서</b></p><div>32.768kHz TCXO<br />
<ol><br />
<li> [[전자부품]]<br />
<ol><br />
<li> [[수정부품]]<br />
<ol><br />
<li> [[발진기]]<br />
<ol><br />
<li> [[TCXO]]<br />
<ol><br />
<li> [[32.768kHz TCXO]] - 이 페이지<br />
</ol><br />
</ol><br />
</ol><br />
<li>참고<br />
<ol><br />
<li> [[32768 수정진동자 측정]]<br />
<li> [[RTC]]<br />
<li> [[Xtal 발진기 출력 프루빙]]<br />
</ol><br />
</ol><br />
<li>기술정보<br />
<ol><br />
<li>정확한 시계를 만들기 위해서는 32.768kHz 발진하는 [[TCXO]]가 필요하다.<br />
<ol><br />
<li>32.768kHz 신호를 RTC IC 또는 시계전용 IC의 입력포트(X1, Xin)에 공급하면 된다.<br />
<gallery><br />
image:ds32khz00_001.png | DS32KHz 제품규격서에서<br />
</gallery><br />
</ol><br />
<li>Seiko Epson - Epson Real-Time Clock module Advantages & its embedded functions / applications<br />
<ol><br />
<li>설명<br />
<ol><br />
<li>11비트 디지털신호로 C와 연결된 스위치를 ON/OFF 시킨다. 2048 조합의 가변 C값을 생성한다.<br />
<li>0.3'C 온도차이를 처리한다.<br />
</ol><br />
<li>제품<br />
<ol><br />
<li>RTC<br />
<ol><br />
<li>산업용 애플리케이션: RX8901CE , RX4901CE , RX8804CE , RX8900CE , RX-8803LC , RX-4803LC , RX8900SA , RX-8803SA , RX- 4803SA<br />
<li>자동차 애플리케이션: RA8000CE , RA4000CE , RA8804CE , RA8900CE , RA8803SA , RA4803SA<br />
</ol><br />
<li>TCXO<br />
<ol><br />
<li>산업 응용 프로그램: TG-3541CE<br />
<li>자동차 애플리케이션: TG-3541CEA<br />
</ol><br />
</ol><br />
</ol><br />
</ol><br />
<li>32.768kHz TCXO 만 있는 경우<br />
<ol><br />
<li>DS32KHZ, Dallas Semiconductor -> Maxim Integrated -> Analog Devices<br />
<ol><br />
<li>팹 공정이 6인치에서 8인치로 변경되었을 때 신뢰성 보고. 2007년 - 9p<br />
<ol><br />
<li>DS1232 다이크기: 78x50, Tr 개수: 1150<br />
<li>DS1302 다이크기: 75x75, Tr 개수: 9752<br />
<li>DS2430 다이크기: 96x70, Tr 개수: 9708<br />
<li>DS32KHZS 다이크기: 142x82, Tr 개수: 27219, 조립회사 Cirtek<br />
<li>DS87C520 다이크기: 261x274, Tr 개수: 276610<br />
</ol><br />
<li>DS32kHz를 RTC로 이용하기 <br />
<li>제품규격서 2006년 - 8p<br />
<ol><br />
<li>전압<br />
<ol><br />
<li>Vcc 4.5V~5.5V<br />
<li>VBat 2.7V~5.5V, Vcc를 접지로 연결했을 때<br />
</ol><br />
<li>소모전류: 115uA, Vcc 5.0V에서<br />
<li>배터리 동작시 소모전류, VBat=3.3V에서, 부하 연결되지 않을 때<br />
<ol><br />
<li>IBat: 1uA<br />
<li>IBatCnv: 450uA, 온도변환 소요시간은 122ms 지속된다. 전원켰을 때와 매 64초마다 실행된다.<br />
</ol><br />
</ol><br />
<li>구입품 하나<br />
<gallery><br />
image:ds32khz01_001.jpg<br />
</gallery><br />
<li>주파수 측정 <br />
<ol><br />
<li>그래프<br />
<gallery><br />
image:ds32khz01_002.png | Vcc=5V에서<br />
image:ds32khz01_003.png | Vcc 전압변화에 따라. +2ppm/V @5.0V<br />
</gallery><br />
<li>의견<br />
<ol><br />
<li>정확한 발진주파수를 위해서는 전압을 조정해야 한다.<br />
</ol><br />
</ol><br />
<li> [[Xtal 온도특성]] - 1<br />
<ol><br />
<li>1차 측정<br />
<ol><br />
<li>측정 엑셀 파일 <br />
<gallery><br />
image:ds32khz01_004.png | 온도 프로파일 -15~+65도씨 1시간동안<br />
image:ds32khz01_005.png | 발진주파수 변화<br />
image:ds32khz01_006.png | 변화율 ppm<br />
</gallery><br />
<li>XO와 TCXO 차이 분석<br />
<gallery><br />
image:ds32khz01_007.png | 공진기와 비교<br />
image:ds32khz01_008.png | 제품규격서<br />
</gallery><br />
<li>의견<br />
<ol><br />
<li>-10'C 이하 온도에서는 온도보상이 되지 않고 있다. 불량품이다.<br />
<li>XO 발진주파수는 25도씨에서 벗어날수록 저주파로 크게 이동한다. 매칭 C값이 클수록 저주파로 이동한다.<br />
<ol><br />
<li>C 값이 크기별로 배열된 어레이에서, 25도일 때 모든 C를 스위치로 연결되어 있고, 온도에 따라 지정된 C 연결 스위치를 OFF 시킨다.<br />
<li>그러면 C값이 작아지면서 주파수가 높아진다.<br />
<li>그러면 변화율 그래프처럼 위로 볼록한 겹치기 곡선이 나온다.<br />
</ol><br />
</ol><br />
</ol><br />
<li>2차 측정 - 며칠 뒤, 측정 기술을 더 쌓은 후<br />
<ol><br />
<li>측정 엑셀 파일 <br />
<gallery><br />
image:ds32khz01_010_001.png | 온도 프로파일 -15~+65도씨 10시간동안<br />
image:ds32khz01_010_002.png<br />
</gallery><br />
<li>온도보상 방법<br />
<gallery><br />
image:ds32khz01_010_003.png<br />
</gallery><br />
<li>의견<br />
<ol><br />
<li>온도 1도 변화할 때마다 보상한다.<br />
<li>이 때 시간 주기는 468초로 64초의 배수가 아니다. 규격서에 나와 있는 Vbat 사용하면 64초이지만, Vcc 사용하면 더 빠른 주기로 보상프로그램이 수행되는 듯.<br />
</ol><br />
</ol><br />
</ol><br />
<li>소모전류 <br />
<ol><br />
<li>Vcc 사용할 때<br />
<gallery><br />
image:ds32khz01_009_001.png | Y축 선형<br />
image:ds32khz01_009_002.png | Y축 로그<br />
</gallery><br />
<li>의견<br />
<ol><br />
<li>32.768kHz로 동작해도 DC전류를 측정해도 된다.<br />
</ol><br />
</ol><br />
</ol><br />
</ol><br />
<li>32.768kHz TCXO가 내장 [[RTC]]<br />
<ol><br />
<li>SiTime 회사의 Si-MEMS를 사용한 TCXO를 사용하는 것이 (아날로그 시계를 제외한 응용에서는) 가장 최적이다.<br />
<li>YIC TX324TK 시리즈, - 1p<br />
<ol><br />
<li>3225 SMD 4핀<br />
<li>1.8~5.0V, 25도에서 +-1.5ppm, 온도범위내에서 +-5ppm<br />
<li>TX324TK-3.3TI-32K-5; 3.3V용 디지키에서 2023년 4,400원에 판매<br />
</ol><br />
<li>DS3231, Maxim Integrated<br />
<ol><br />
<li>제품규격서 - 20p<br />
<ol><br />
<li>32kHz와 INT/SQW 출력은 open drain 회로이므로 pullup 저항 1k~10M 사용한다.<br />
<li>DS3231M, - 20p<br />
<ol><br />
<li>저가격 제품, MEMS 진동자를 사용했다. DS3231MZ 품번은 8핀 제품이다.<br />
<li>1Hz 출력도 지원한다.<br />
</ol><br />
</ol><br />
<li>구입<br />
<gallery><br />
image:ds3231_01_001.jpg<br />
</gallery><br />
<li>측정 방법<br />
<gallery><br />
image:ds3231_01_002.jpg | Vcc에 [[디커플링 캐퍼시터]]를 연결하였다.<br />
</gallery><br />
<li>각종 주파수 특성 측정 엑셀 파일 <br />
<ol><br />
<li> [[디커플링 캐퍼시터]], [[바이패스 캐퍼시터]] 연결하지 않고 측정하면<br />
<ol><br />
<li>시간에 따라<br />
<gallery><br />
image:ds3231_02_001.png | 60분간 측정. 3320샘플중에서 1646샘플이 정상이다. 50% 샘플에 문제가 발생된다.<br />
image:ds3231_02_002.png | 유효한 측정값으로. 시간 경과에 따라 주변온도 변화를 보상하고 있다.<br />
</gallery><br />
</ol><br />
<li> [[Xtal 온도특성]]<br />
<ol><br />
<li>[[디커플링 캐퍼시터]]를 연결하지 않았다.<br />
<gallery><br />
image:ds3231_02_006.png | 온도프로파일<br />
image:ds3231_02_007.png | 주파수특성<br />
</gallery><br />
<li>의견<br />
<ol><br />
<li>온도 변화에 매우 늦게 반응한다.<br />
<li>실험을 위한 오븐 온도 변화율을 매우 낮추어 다시 실험해보자.<br />
</ol><br />
</ol><br />
</ol><br />
<li>온도보상 수행하는 시간간격 <br />
<ol><br />
<li>온도변화가 큰 구간과 작은 구간에서 주파수 변동<br />
<gallery><br />
image:ds3231_03_001.png<br />
image:ds3231_03_002.png<br />
image:ds3231_03_003.png | 온도변화가 큰 구간에서는 64초마다 온도보상을 하고 있다.<br />
</gallery><br />
<li>-15도씨에서 +65도씨까지 10시간동안 상승하면서<br />
<gallery><br />
image:ds3231_03_007.png | 온도 프로파일. 상승기울기=80도/600분=0.133도/분<br />
image:ds3231_03_008.png<br />
image:ds3231_03_009.png | 내장된 XO에 따라 정확히 온도프로그래밍은 되어 있지 않다.<br />
</gallery><br />
<li>약 12도씨부근, 온도변화가 느린(+0.133도/분) 구간에서<br />
<gallery><br />
image:ds3231_03_004.png<br />
image:ds3231_03_005.png | 소요시간 약 30분. 그러면 4도씨 변화. 15회 온도보상이 발생. 그러면 1/4도씨 변화하면 온도보상이 이루어진다.<br />
image:ds3231_03_006.png | 64초 간격으로 0.25도씨 이상 변하면 온도보상을 한다.<br />
</gallery><br />
</ol><br />
<li>Vcc에 따른 주파수 특성 엑셀 파일 <br />
<ol><br />
<li> [[디커플링 캐퍼시터]] 없이 최초 측정<br />
<gallery><br />
image:ds3231_02_003.png | 항상 높은 Vcc에서 잡음이 측정된다.<br />
</gallery><br />
<li> [[디커플링 캐퍼시터]] 연결하고 측정하면<br />
<gallery><br />
image:ds3231_02_004.png | Vcc 변화에 따라 잡음이 발생되지 않는다.<br />
image:ds3231_02_005.png | 주파수 오차가 0.00ppm 인 전압을 발견할 수 있다.<br />
</gallery><br />
<li>불연속이 발생되는 이유.<br />
<gallery><br />
image:ds3231_04_001.png | 최대전력소모가 21mW인 경우. 하강실험을 먼저함.<br />
image:ds3231_04_002.png | 최대전력소모가 0.7mW인 경우 및 빠르게 실험한 경우<br />
</gallery><br />
</ol><br />
</ol><br />
</ol><br />
</ol></div>
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