32.768KHZ晶振是款實(shi)時(shi)掛(gua)鐘晶(jing)(jing)振(zhen)(zhen),它的(de)(de)作用(yong)是可以產生(sheng)時(shi)序電路基準信號。而之所以選用(yong)32.768K是因為(wei)它是2的(de)(de)15次冪,是因為(wei)可以很[敏感詞]的(de)(de)得到一(yi)(yi)秒的(de)(de)計時(shi)。不僅如(ru)此,包(bao)括(kuo)所有(you)的(de)(de)實(shi)時(shi)時(shi)鐘晶(jing)(jing)振(zhen)(zhen)一(yi)(yi)般都是32.768或其倍頻(pin)。貼(tie)片32.768K晶(jing)(jing)振(zhen)(zhen)的(de)(de)負載電容都是12.5PF。常用(yong)32.768K晶(jing)(jing)振(zhen)(zhen)的(de)(de)電子(zi)產品(pin)有(you)智能手(shou)機、智能手(shou)表、安防和(he)可穿戴設備等等。也(ye)還有(you)很多生(sheng)活(huo)類、工業(ye)類電子(zi)也(ye)會常用(yong)到這(zhe)款頻(pin)率(lv)的(de)(de)進口晶(jing)(jing)振(zhen)(zhen)。
Image | Types of | Model | Package size | Frequency | Voltage/load | Frequency difference | Operating temperature | Sample Application | |
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SMD KHZ Crystal (2012) | H21 | 2.0x1.2x0.6mm | 32.768KHZ | 12.5PF or specif | ±10PPM or specif | -40℃~+85℃ or specif | ![]() |
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SMD KHZ Crystal (3215) | H31 | 3.2x1.5x0.75mm | 32.768KHZ | 12.5PF or specif | ±20PPM or specif | -40℃~+85℃ or specif | ![]() |
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SMD KHZ Crystal (MC146) | G146 | 7.0x1.5mm | 32.768KHZ | 12.5PF or specif | ±10PPM or specif | -40℃~+85℃ or specif | ![]() |
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SMD KHZ Crystal (MC146) | MC146 | 7.0x1.5mm | 32.768KHZ | 12.5PF or specif | ±20PPM or specif | -40℃~+85℃ or specif | ![]() |
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SMD KHZ Crystal(Y206) | Y206 | 2.0x6.0mm | 32.768KHZ | 20PF or specif | ±20PPM or specif | -20℃~+70℃ | ![]() |
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SMD KHZ Crystal(Y308) | Y308 | 3.0x8.0mm | 32.768KHZ | 20PF or specif | ±20PPM or specif | -20℃~+70℃ or specif | ![]() |
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