User's Manual

SIM7090G User Manual V1.01
www.simcom.com
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Figure Index
FIGURE 1 : SIM7090G BLOCK DIAGRAM....................................................................................................................... 12
FIGURE 2 : PIN ASSIGNMENT OVERVIEW.................................................................................................................... 14
FIGURE 3 : DIMENSIONS (UNIT: MM)..............................................................................................................................20
FIGURE 4 : FOOTPRINT RECOMMENDATION (UNIT: MM)........................................................................................ 21
FIGURE 5 : POWER SUPPLY APPLICATION CIRCUIT................................................................................................ 23
FIGURE 6 : REFERENCE POWER ON/OFF CIRCUIT.................................................................................................. 24
FIGURE 7 : POWER ON TIMING SEQUENCE................................................................................................................25
FIGURE 8 : POWER OFF TIMING SEQUENCE..............................................................................................................26
FIGURE 9 : REFERENCE RESET CIRCUIT.................................................................................................................... 28
FIGURE 10 : UART FULL MODEM.....................................................................................................................................30
FIGURE 11 : REFERENCE CIRCUIT OF LEVEL SHIFTER IC...................................................................................... 31
FIGURE 12 : REFERENCE CIRCUIT WITH TRANSISTOR .........................................................................................31
FIGURE 13 : RI BEHAVIOUR（SMS AND URC REPORT）........................................................................................ 32
FIGURE 14 : REFERENCE DESIGN OF USB PHY..................................................................................................... 33
FIGURE 15 : REFERENCE DESIGN OF USB INTERFACE.......................................................................................... 33
FIGURE 16 : SIM INTERFACE REFERENCE CIRCUIT.................................................................................................35
FIGURE 17 : REFERENCE CIRCUIT OF PCM APPLICATION WITH AUDIO CODEC............................................ 36
FIGURE 18 : I2C REFERENCE CIRCUIT......................................................................................................................... 37
FIGURE 19 : SPI MASTER MODE CIRCUIT.................................................................................................................... 38
FIGURE 20 : SPI SLAVE MODE CIRCUIT........................................................................................................................ 38
FIGURE 21 : NETLIGHT REFERENCE CIRCUIT............................................................................................................39
FIGURE 22 ：POWER ON SEQUENCE OF THE VDD_EXT.......................................................................................41
FIGURE 23 ：RF CONTROL INTERFACE REFERENCE CIRCUIT........................................................................... 42
FIGURE 24 ：REFERENCE CIRCUIT OF BOOT_CFG INTERFACE........................................................................ 43
FIGURE 25 : ANTENNA MATCHING CIRCUIT (MAIN_ANT)........................................................................................ 49
FIGURE 26 : ACTIVE ANTENNA CIRCUIT....................................................................................................................... 51
FIGURE 27 : PASSIVE ANTENNA CIRCUIT (DEFAULT)............................................................................................... 51
FIGURE 28 : RF TRACE SHOULD BE FAR AWAY FROM OTHER HIGH SPEED SIGNAL LINES....................... 52
FIGURE 29 : THE DISTANCE BETWEEN GND TO THE INNER CONDUCTOR OF SMA...................................... 53
FIGURE 30 : E-DRX DIAGRAMMATIC SKETCH............................................................................................................. 59
FIGURE 31 : TOP AND BOTTOM VIEW OF SIM7090G.................................................................................................63
FIGURE 32 : LABEL INFORMATION................................................................................................................................. 64
FIGURE 33 : THE RAMP-SOAK-SPIKE REFLOW PROFILE OF SIM7090G............................................................. 65
FIGURE 34 : STENCIL RECOMMENDATION (UNIT: MM).............................................................................................68
FIGURE 35 : PACKAGING DIAGRAM............................................................................................................................... 69
FIGURE 36 : TRAY DRAWING............................................................................................................................................ 69
FIGURE 37 : SMALL CARTON DRAWING....................................................................................................................... 70
FIGURE 38 : BIG CARTON DRAWING............................................................................................................................. 71