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Smart Machine Smart DecisionBog'liq SIM800L davlat-standarti-asosida-chizmalarni-taxt-qilish, Test tayyorlanishga (2), Asbobsozlik materiallari Qirindi hosil bo’lish jarayoni, Testlar to\'plami 2021, маруза, Referat Psixologiya fanidan Mavzu Temperament va uning tiplari, Хавоканд, MInimalizm uslubining milliy uylarimizdagi muhim jihatlari, ttb 6, Исокжонов Жамшидбек 89 А 20-гурух, xx asrning 60-80-yillarida ozbekistonda suv resurslaridan foydalanish muammolari, Саволлар Коллеж учун, betlik, 55555, lira Smart Machine Smart Decision
SIM800H&SIM800L_Hardware Design_V2.02 9 2015-07-27
FIGURE 47: LED DRIVER REFERENCE CIRCUIT..................................................................................................... 51
FIGURE 48: RF_SYNC SIGNAL DURING TRANSMIT BURST ................................................................................ 51
FIGURE 49: GSM ANTENNA MATCHING CIRCUIT ................................................................................................. 52
FIGURE 50: GSM SIMPLE ANTENNA MATCHING CIRCUIT .................................................................................. 53
FIGURE 51: BLUETOOTH ANTENNA MATCHING CIRCUIT .................................................................................. 53
FIGURE 52: FM ANTENNA MATCHING CIRCUIT .................................................................................................... 54
FIGURE 53: GND PIN OF THE EARPHONE USE TO BE THE FM ANTENNA INTERFACE ................................. 54
FIGURE 54: PIN ASSIGNMENT.................................................................................................................................... 55
FIGURE 55: RECOMMENDED PCB LAYOUT ............................................................................................................ 57
FIGURE 56: TOP AND BOTTOM VIEW OF SIM800H ................................................................................................ 65
FIGURE 57: TOP AND BOTTOM VIEW OF SIM800L................................................................................................. 65
FIGURE 58: TYPICAL SOLDER REFLOW PROFILE OF LEAD-FREE PROCESSES.............................................. 66
Smart Machine Smart Decision
SIM800H&SIM800L_Hardware Design_V2.02 10 2015-07-27
Version History
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