User Manual

Smart Machine Smart Decision
SIM7100_Hardware_Design_V1.02 2015-06-16
Figure Index
Figure 1: SIM7100 Block Diagram ..............................................................................................................10
Figure 2: Pin Assignment Overview .............................................................................................................13
Figure 3: Top dimensions (Unit: mm) ...........................................................................................................20
Figure 4: Side dimensions (Unit: mm) ..........................................................................................................21
Figure 5: Bottom dimensions (Unit: mm) .....................................................................................................22
Figure 6: Footprint Recommendation (Unit: mm) .........................................................................................23
Figure 7: VBAT voltage drop during burst emission (GSM/GPRS)................................................................24
Figure 8: Power Supply Application Circuit .................................................................................................25
Figure 9: Linear Regulator Reference Circuit ...............................................................................................26
Figure 10: Switching Mode power supply Reference Circuit .........................................................................26
Figure 11: Reference power on/off circuit.....................................................................................................27
Figure 12: Power on Timing Sequence .........................................................................................................27
Figure 13: Power off timing sequence ..........................................................................................................28
Figure 14: Reference Reset Circuit ...............................................................................................................29
Figure 15: UART Full modem .....................................................................................................................30
Figure 16: UART Null Modem ....................................................................................................................30
Figure 17: Reference circuit of level shift .....................................................................................................31
Figure 18: RI behaviour（SMS and URC report） .......................................................................................31
Figure 19: RI behaviour（voice call） .........................................................................................................32
Figure 20: USB Reference Circuit ................................................................................................................32
Figure 21: USIM interface reference circuit ..................................................................................................34
Figure 22: Amphenol SIM card socket .........................................................................................................34
Figure 23: PCM_SYNC timing ....................................................................................................................35
Figure 24: EXT CODEC to MODULE timing ..............................................................................................36
Figure 25: MODULE to EXT CODEC timing ..............................................................................................36
Figure 26: Audio Codec Reference Circuit ...................................................................................................37
Figure 27: SD Reference Circuit ..................................................................................................................38
Figure 28: I2C Reference Circuit .................................................................................................................38
Figure 29: Keypad Reference Circuit ...........................................................................................................39
Figure 30: NETLIGHT Reference Circuit.....................................................................................................40
Figure 31: Flight Mode Switch Reference Circuit .........................................................................................40
Figure 32: ISINK Reference Circuit .............................................................................................................43
Figure 33: Antenna matching circuit (MAIN_ANT)......................................................................................49
Figure 34: Antenna matching circuit (AUX_ANT) .......................................................................................50
Figure 35: Active antenna circuit..................................................................................................................51
Figure 36: Passive antenna circuit (Default) .................................................................................................51
Figure 37: Top and bottom view of SIM7100 ...............................................................................................59
Figure 38: Label Information .......................................................................................................................60
Figure 39: The ramp-soak-spike Reflow Profile of SIM7100.........................................................................61
Figure 40: Reference Design ........................................................................................................................63