SimCom SIM808 Hardware Design page 8

Smart Machine Smart Decision
FIGURE 48: REFERENCE CIRCUIT OF NETLIGHT .................................................................................................. 50
FIGURE 49: RF_SYNC SIGNAL DURING TRANSMIT BURST ................................................................................ 51
FIGURE 50: GSM ANTENNA MATCHING CIRCUIT ................................................................................................. 51
FIGURE 51: GPS ANTENNA MATCHING CIRCUIT................................................................................................... 53
FIGURE 52: TOP AND BOTTOM VIEW OF SIM808 ................................................................................................... 61
FIGURE 53: TYPICAL SOLDER REFLOW PROFILE ................................................................................................. 61
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SIM808_Hardware Design_V1.00 2014.03.27