?????????????????????????????????IoT???????????????г????????????豸С???????????????????????????????????????豸???????????????????С???????硣??????г?????????????????????У??????г??????????????У??????????????????豸??????????????

????????????????????????????????????????????“????”??????????????????????????Murata Electronics Oy???VTI Technologies????MEMS???????з???????????IoT?豸???????豸???С???????????С32.768kHz MEMSг????????????????С??????С50?????????ESR???????????????????????????????ò?????MEMSг????“WMRAG???”????2018??12?·?????????

????С??32.768kHz MEMSг????

???????MEMS??????ò??????С????????????????г??????????????????±20ppm??????????????????160ppm???￡?????????????-30~85?棩???????ò???????????????

1??????????????С50??????

????С32.768kHz MEMSг????????0.9 x 0.6 x 0.3mm???? x ?? x ???????????32.768k kHz????г??????С??50%?????

2?????????t??????

??????????????·???2??????????????????С32.768kHz MEMSг??????????6.9pF???????????????????????????????·????????????

3?????????ESR?????????

???????г???????????СESR??????????????????????????????з????С32.768kHz MEMSг????????????ESR??75kΩ??????????????彎???·?????棬????????????????????????????????????????13??????

?????ù?????WL-CSP??Wafer-Level Chip Scale Packaging???????????С32.768kHz MEMSг?????????????????彎???·???з????

??????????????????????????????????????????????????????????????С32.768kHz MEMSг????????????????????IoT?豸???????豸???С??????????????????

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??MEMS?????г?-2017?桷