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首頁(yè)技術(shù)支持 Aker音叉晶體CTS3-32.768-9-20-R為何開創(chuàng)新的精度標(biāo)準(zhǔn)?

Aker音叉晶體CTS3-32.768-9-20-R為何開創(chuàng)新的精度標(biāo)準(zhǔn)?

來源：http://renderx.cn 作者：lyii 2023年06月13

Aker音叉晶體CTS3-32.768-9-20-R為何開創(chuàng)新的精度標(biāo)準(zhǔn)?在這一突破之前，所有的鐘表都是純機(jī)械運(yùn)轉(zhuǎn)的。通過安裝石英晶體和使石英振蕩的相應(yīng)能量源，首次引入了電子元件。這確實(shí)奏效了:新款石英表的走時(shí)比純機(jī)械手表精確得多。
但是石英晶體實(shí)際上實(shí)現(xiàn)了什么功能呢？簡(jiǎn)而言之，高質(zhì)量石英晶體確保手表“知道”一秒持續(xù)多長(zhǎng)時(shí)間。這是通過產(chǎn)生恰好1赫茲的頻率來實(shí)現(xiàn)的。赫茲是頻率的常用測(cè)量單位。它表示周期信號(hào)中每秒重復(fù)過程的次數(shù)；在這種情況下，秒針在表盤上前進(jìn)一個(gè)位置。
32，768赫茲音叉無源晶體的唯一標(biāo)準(zhǔn)頻率來自哪里？要理解這一點(diǎn)，你必須知道石英晶體的頻率取決于它的形狀和大小。一個(gè)自然頻率只有1赫茲的石英會(huì)如此之大，它更適合“大本鐘”鐘樓，而不是手表。顯然，從生產(chǎn)和使用的角度來看，這是相當(dāng)不切實(shí)際的，所以有一個(gè)特殊的技巧。Aker公司匠心締造石英晶體編碼CTS3-32.768-9-20-R，Crystal，無源晶振，頻率為0.032768MHz，頻率公差為±20ppm (Tol) ，負(fù)載電容為9pF，腳位為2-Pin，SMD，T/R.

型號(hào) 供應(yīng)商 類型 說明
S73305T-11.0592-X-15-R Aker Technology 表面貼裝晶體振蕩器 Clock Oscillator Low Profile 5.0 x 7.0 millimeter Surface Mount
S733025T-49.152-15-R Aker Technology 表面貼裝晶體振蕩器 Clock Oscillator Low Profile 5.0 x 7.0 millimeter Surface Mount
CTS332.76812.520R Aker Technology 石英晶體 Crystal 0.032768MHz ±20ppm (Tol) 12.5pF FUND 65000Ohm 2-Pin SMD T/R
CTP3-32.768-6-20-R Aker Technology 石英晶體 Crystal 0.032768MHz ±20ppm (Tol) 6pF FUND 50000Ohm 4-Pin SMD T/R
CTS2-32.768-7-20-R Aker Technology 石英晶體 Crystal 0.032768MHz ±20ppm (Tol) 7pF FUND 65000Ohm 2-Pin SMD T/R
CTS2-32.768-9-20-R Aker Technology 石英晶體 Crystal 0.032768MHz ±20ppm (Tol) 9pF FUND 65000Ohm 2-Pin SMD T/R
CTS3-32.768-7-20-R Aker Technology 石英晶體 Crystal 0.032768MHz ±20ppm (Tol) 7pF FUND 65000Ohm 2-Pin SMD T/R
CTS3-32.768-9-20-R AKER晶振 石英晶體 Crystal 0.032768MHz ±20ppm (Tol) 9pF FUND 65000Ohm 2-Pin SMD T/R
C16-37.400-10-1520-R Aker Technology 石英晶體 Crystal 37.4MHz ±15ppm (Tol) ±20ppm (Stability) 10pF 4-Pin CSMD T/R
C16-26.000-8-1520-R Aker Technology 石英晶體 Crystal 26MHz ±15ppm (Tol) ±20ppm (Stability) 8pF 4-Pin CSMD T/R
C16-26.000-12-1520-R Aker Technology 石英晶體 Crystal 26MHz ±15ppm (Tol) ±20ppm (Stability) 12pF 4-Pin CSMD T/R
C16-35.328-10-1520-R Aker Technology 石英晶體 Crystal 35.328MHz ±15ppm (Tol) ±20ppm (Stability) 10pF 4-Pin CSMD T/R
C16-48.000-8-1520-R Aker Technology 石英晶體 Crystal 48MHz ±15ppm (Tol) ±20ppm (Stability) 8pF 4-Pin CSMD T/R
C16-35.328-12-1530-X-R Aker Technology 石英晶體 Crystal 35.328MHz ±15ppm (Tol) ±30ppm (Stability) 12pF 4-Pin CSMD T/R
C16-48.000-10-1530-X-R Aker Technology 石英晶體 Crystal 48MHz ±15ppm (Tol) ±30ppm (Stability) 10pF 4-Pin CSMD T/R
C16-48.000-12-1520-R Aker Technology 石英晶體 Crystal 48MHz ±15ppm (Tol) ±20ppm (Stability) 12pF 4-Pin CSMD T/R
C16-27.120-10-1530-X-R Aker Technology 石英晶體 Crystal 27.12MHz ±15ppm (Tol) ±30ppm (Stability) 10pF 4-Pin CSMD T/R
C16-27.120-8-1520-R Aker Technology 石英晶體 Crystal 27.12MHz ±15ppm (Tol) ±20ppm (Stability) 8pF 4-Pin CSMD T/R
C16-27.120-12-1520-R Aker Technology 石英晶體 Crystal 27.12MHz ±15ppm (Tol) ±20ppm (Stability) 12pF 4-Pin CSMD T/R
C16-50.000-8-1520-R Aker Technology 石英晶體 Crystal 50MHz ±15ppm (Tol) ±20ppm (Stability) 8pF 4-Pin CSMD T/R
C16-54.240-12-1520-R Aker Technology 石英晶體 Crystal 54.24MHz ±15ppm (Tol) ±20ppm (Stability) 12pF 4-Pin CSMD T/R
C16-30.000-12-1520-R Aker Technology 石英晶體 Crystal 30MHz ±15ppm (Tol) ±20ppm (Stability) 12pF 4-Pin CSMD T/R
C16-54.240-10-1530-X-R Aker Technology 石英晶體 Crystal 54.24MHz ±15ppm (Tol) ±30ppm (Stability) 10pF 4-Pin CSMD T/R
C16-37.400-8-1530-X-R Aker Technology 石英晶體 Crystal 37.4MHz ±15ppm (Tol) ±30ppm (Stability) 8pF 4-Pin CSMD T/R
C16-30.000-10-1530-X-R Aker Technology 石英晶體 Crystal 30MHz ±15ppm (Tol) ±30ppm (Stability) 10pF 4-Pin CSMD T/R
C16-35.328-8-1530-X-R Aker Technology 石英晶體 Crystal 35.328MHz ±15ppm (Tol) ±30ppm (Stability) 8pF 4-Pin CSMD T/R
C16-50.000-12-1520-R Aker Technology 石英晶體 Crystal 50MHz ±15ppm (Tol) ±20ppm (Stability) 12pF 4-Pin CSMD T/R
C16-50.000-10-1530-X-R Aker Technology 石英晶體 Crystal 50MHz ±15ppm (Tol) ±30ppm (Stability) 10pF 4-Pin CSMD T/R
C16-54.240-8-1520-R Aker Technology 石英晶體 Crystal 54.24MHz ±15ppm (Tol) ±20ppm (Stability) 8pF 4-Pin CSMD T/R
C16-37.400-12-1530-X-R Aker Technology 石英晶體 Crystal 37.4MHz ±15ppm (Tol) ±30ppm (Stability) 12pF 4-Pin CSMD T/R
C16-30.000-8-1520-R Aker Technology 石英晶體 Crystal 30MHz ±15ppm (Tol) ±20ppm (Stability) 8pF 4-Pin CSMD T/R
C16-31.250-10-1530-X-R Aker Technology 石英晶體 Crystal 31.25MHz ±15ppm (Tol) ±30ppm (Stability) 10pF 4-Pin CSMD T/R
C16-31.250-8-1520-R Aker Technology 石英晶體 Crystal 31.25MHz ±15ppm (Tol) ±20ppm (Stability) 8pF 4-Pin CSMD T/R
C16-31.250-12-1520-R Aker Technology 石英晶體 Crystal 31.25MHz ±15ppm (Tol) ±20ppm (Stability) 12pF 4-Pin CSMD T/R
C16-26.000-8-1530-X-R Aker Technology 石英晶體 Crystal 26MHz ±15ppm (Tol) ±30ppm (Stability) 8pF 4-Pin CSMD T/R
C16-26.000-12-1530-X-R Aker Technology 石英晶體 Crystal 26MHz ±15ppm (Tol) ±30ppm (Stability) 12pF 4-Pin CSMD T/R
C16-26.000-10-1520-R Aker Technology 石英晶體 Crystal 26MHz ±15ppm (Tol) ±20ppm (Stability) 10pF 4-Pin CSMD T/R
C16-35.328-8-1520-R Aker Technology 石英晶體 Crystal 35.328MHz ±15ppm (Tol) ±20ppm (Stability) 8pF 4-Pin CSMD T/R
C16-48.000-8-1530-X-R Aker Technology 石英晶體 Crystal 48MHz ±15ppm (Tol) ±30ppm (Stability) 8pF 4-Pin CSMD T/R
C16-48.000-10-1520-R Aker Technology 石英晶體 Crystal 48MHz ±15ppm (Tol) ±20ppm (Stability) 10pF 4-Pin CSMD T/R
C16-35.328-12-1520-R Aker Technology 石英晶體 Crystal 35.328MHz ±15ppm (Tol) ±20ppm (Stability) 12pF 4-Pin CSMD T/R
C16-35.328-10-1530-X-R Aker Technology 石英晶體 Crystal 35.328MHz ±15ppm (Tol) ±30ppm (Stability) 10pF 4-Pin CSMD T/R
C16-48.000-12-1530-X-R Aker Technology 石英晶體 Crystal 48MHz ±15ppm (Tol) ±30ppm (Stability) 12pF 4-Pin CSMD T/R
Aker音叉晶體CTS3-32.768-9-20-R為何開創(chuàng)新的精度標(biāo)準(zhǔn)?32.768kHz頻率的手表晶體比較容易生產(chǎn)。內(nèi)置于手表中，其原始頻率使用所謂的T觸發(fā)器或波紋計(jì)數(shù)器進(jìn)行分割。每個(gè)T觸發(fā)器可以將石英的頻率減半。如果15個(gè)這樣的觸發(fā)器串聯(lián)，32.768KHz的輸出頻率正好等于1赫茲。因此，經(jīng)典音叉晶體的頻率最終是簡(jiǎn)單的算術(shù)運(yùn)算和石英生產(chǎn)的一般條件的結(jié)果。
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