SimCom SIM7000 User Manual

Smart Machine Smart Decision
SIM7000 _Hardware Design _V1.04 2018-1-31
Figure Index
Figure 1: SIM7000 block diagram ..................................................................................................................... 12
Figure 2: Pin assignment overview .................................................................................................................... 15
Figure 3: Dimensions (Unit: mm) ...................................................................................................................... 20
Figure 4: Footprint recommendation (Unit: mm) ............................................................................................... 21
Figure 5: VBAT voltage drop during burst emission (EDGE/GPRS) ................................................................ 22
Figure 6: Power supply application circuit......................................................................................................... 23
Figure 7: Linear regulator reference circuit ....................................................................................................... 24
Figure 8: power supply reference circuit (NB only)........................................................................................... 24
Figure 9: Reference power on/off circuit ........................................................................................................... 25
Figure 10: Power on timing sequence ................................................................................................................ 25
Figure 11: Power off timing sequence ................................................................................................................ 27
Figure 12: Reference reset circuit ...................................................................................................................... 28
Figure 13: UART full modem ............................................................................................................................ 29
Figure 14: UART null modem ........................................................................................................................... 29
Figure 15: Reference circuit of level shift .......................................................................................................... 30
Figure 16: RI behaviour（SMS and URC report） ........................................................................................... 30
Figure 17: USB reference circuit ....................................................................................................................... 31
Figure 18: SIM interface reference circuit ......................................................................................................... 33
Figure 19: PCM_SYNC timing .......................................................................................................................... 34
Figure 20: External codec to module timing ...................................................................................................... 34
Figure 21: Module to external codec timing ...................................................................................................... 35
Figure 22: Audio codec reference circuit ........................................................................................................... 36
Figure 23: I2C reference circuit ......................................................................................................................... 36
Figure 24: NETLIGHT reference circuit ............................................................................................................ 37
Figure 25：Power on sequence of the VDD_EXT ............................................................................................ 38
Figure 26: Antenna matching circuit (MAIN_ANT) .......................................................................................... 42
Figure 27: Active antenna circuit ....................................................................................................................... 43
Figure 28: Passive antenna circuit (Default) ...................................................................................................... 44
Figure 29: RF trace should be far away from other high speed signal lines ....................................................... 45
Figure 30: The distance between GND to the inner conductor of SMA ............................................................. 45
Figure 31: e-DRX diagrammatic sketch ............................................................................................................. 51
Figure 32: Top and bottom view of SIM7000 .................................................................................................... 55
Figure 33: Label information ............................................................................................................................. 56
Figure 34: The ramp-soak-spike reflow profile of SIM7000 ............................................................................. 57
Figure 33: stencil recommendation (Unit: mm) ................................................................................................. 60
Figure 35: packaging diagram ............................................................................................................................ 61
Figure 36: Tray drawing ..................................................................................................................................... 61
Figure 37: Small carton drawing ........................................................................................................................ 62
Figure 38: Big carton drawing ........................................................................................................................... 62
Figure 39: Reference design .............................................................................................................................. 64
SIMCOM CONFIDENTIAL FILE

SimCom SIM7000 Specifications

General

Brand	SimCom
Model	SIM7000
Category	GSM/GPRS Modules
Language	English