???????

??????????IC

?????????2013-3-27

????????????,??????,?????,RCC,RF??????????????????W1901??????,???,RF?????????????W1801, ?????????????????.???????з???????.

?????????

  • ??????????????????繦????????
  • ?????????
  • ???
    ??????????????????????:TX,RES??
    3½λ??????????,?????0.1?棬???Χ-50?棭70?棬???????????η??????
    2 λ????????????????1%?????Χ20??99%?????????????η??????
    ????????ASK 433.92MHz??
    ????RF ?????CH1=31S,CH2=33S,CH3=35S??
    RF ???????Χ????100 ???
    ????????2.6??3.3V???????????7uA??
    ????????2.6 V ???£?

W1901???????????????

  • ????????????,??????,?????,RCC,RF??
  • ?????????
  • ???
    4 ???????????SET/MODE, ALARM/SNOOZE, +/CH/RCC, -/MEM;
    ???????????????????????仯?????
    ??????????λ??????????12 С????????????????仯?????
    ???????????
    ?????????,???, ??c??????????????С????书??.
    3½λ?????????????????????0.1?棬??????Χ0??D?D50?棬???????10 ??
    3½λ?????????????????????0.1?棬??????Χ-50??D?D70?棬???????10 ??
    2 λ???????????/???????????1%????????Χ20?D?D99%?????????10??
    ????????+/-3%,+/-5%,+/-8??
    ??λ????????С????????12/24 С??????
    2000-2099 ??????????2 λ????????·??2 λ????????????
    ??λ????????????5 ????????????????????????????????????????;
    ?????????????????
    RCC?????RCC ????DCF??WWVB??MSF?????????????
    RF???????RF ???+??????????100M ????
    ???????????≤20uA??

 

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