Specifications

Smart Machine Smart Decision
SIM5800_Hardware Design_V1.01 6 2018-10-08
Figure Index
FIGURE 1: SIM5800 FUNCTIONAL DIAGRAM.......................................................................................................... 11
FIGURE 2: MODULE PIN DIAGRAM (TOP VIEW) .................................................................................................... 12
FIGURE 3: OUTLINE DRAWING (UNIT: MM)............................................................................................................ 19
FIGURE 4: RECOMMENDED PCB FOOTPRINT (UNIT: MM) .................................................................................. 20
FIGURE 5: LDO POWER SUPPLY REFERENCE CIRCUIT ........................................................................................ 21
FIGURE 6: DC-DC POWER SUPPLY REFERENCE CIRCUIT .................................................................................... 21
FIGURE 7: VBAT INPUT REFERENCE CIRCUIT ....................................................................................................... 22
FIGURE 8: THE MINIMAL VBAT VOLTAGE REQUIREMENT AT VBAT DROP .................................................... 22
FIGURE 9: POWER ON/OFF MODULE USING TRANSISTOR ................................................................................. 23
FIGURE 10: POWER ON/OFF MODULE USING BUTTON ........................................................................................ 23
FIGURE 11: TIMING OF POWER ON MODULE ......................................................................................................... 23
FIGURE 12: RESET CIRCUIT ........................................................................................................................................ 24
FIGURE 13: RTC SUPPLY FROM CAPACITOR ........................................................................................................... 24
FIGURE 14: RTC SUPPLY FROM NON-CHARGEABLE BATTERY.......................................................................... 25
FIGURE 15: RTC SUPPLY FROM RECHARGEABLE BATTERY .............................................................................. 25
FIGURE 16: USB REFERENCE CIRCUIT .................................................................................................................... 27
FIGURE 17: USB DOWNLOAD DIAGRAM ................................................................................................................. 27
FIGURE 18:USB_OTG DIAGRAM ................................................................................................................................ 28
FIGURE 19: CHARGE DIAGRAM ................................................................................................................................ 29
FIGURE 20: BAT_ID DIAGRAM ................................................................................................................................... 30
FIGURE 21: TX LEVEL CONVERTING BY TRANSISTOR ........................................................................................ 30
FIGURE 22: RX LEVEL CONVERTING BY TRANSISTOR........................................................................................ 31
FIGURE 23: SD CARD REFERENCE CIRCUIT ........................................................................................................... 32
FIGURE 24: LCD REFERENCE CIRCUIT .................................................................................................................... 33
FIGURE 25: PRIMARY CAMERA REFERENCE CIRCUIT ......................................................................................... 34
FIGURE 26: RECEIVER REFERENCE CIRCUIT ......................................................................................................... 35
FIGURE 27: REFERENCE CITCUIT OF THE MIC ...................................................................................................... 36
FIGURE 28: REFERENCE CIRCUIT OF HEADSET .................................................................................................... 36
FIGURE 29: REFERENCE CIRCUIT OF THE SPEAKER ............................................................................................ 38
FIGURE 30: MICBIAS0 INTERNAL CIRCUIT ............................................................................................................. 39
FIGURE 31: MICBIAS1 INTERNAL CIRCUIT ............................................................................................................. 39
FIGURE 32: USIM REFERENCE CIRCUIT .................................................................................................................. 40
FIGURE 33: MOTOR REFERENCE CIRCUIT .............................................................................................................. 40
FIGURE 34: ISINK REFERENCE CIRUIT .................................................................................................................... 41
FIGURE 35: KEYPAD REFERENCE CIRCUIT ............................................................................................................ 42
FIGURE 36: MAIN ANTENNA RECOMMENDED CIRCUIT ..................................................................................... 43
FIGURE 37: GNSSANTENNA RECOMMENDED CIRCUIT ....................................................................................... 43
FIGURE 38: GNSS ACTIVE ANTENNA CIRCUIT ....................................................................................................... 43
FIGURE 39: WIFI/BT ANTENNA RECOMMENDED CIRCUIT ................................................................................. 44