Users Manual Part 1

SIM8260A_Hardware Design_V1.05
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Figure Index
Figure 1 : Module block diagram .............................................................................................................. 13
Figure 2 : Pin assignment(Top View) ........................................................................................................16
Figure 3 : Dimensions of SIM8260A (unit: mm) ....................................................................................... 28
Figure 4 : Power consumption at ENDC combination of B2 (20MHz) and N79 (100MHz) .................... 30
Figure 5 : Power consumption of entire systeam .....................................................................................30
Figure 6 : Power supply reference circuit .................................................................................................31
Figure 7 : Linear regulator reference circuit ............................................................................................. 33
Figure 8 : Switching mode power supply reference circuit ...................................................................... 33
Figure 9 : Switching mode power supply reference circuit for mmW ...................................................... 34
Figure 10 : Power on the module use button ........................................................................................... 35
Figure 11 : Power on the module use GPIO drive ................................................................................... 35
Figure 12 : Power on sequence ............................................................................................................... 36
Figure 13 : Power off sequence ................................................................................................................37
Figure 14 : Reset the module use GPIO drive .........................................................................................38
Figure 15 : Reset the module use button .................................................................................................38
Figure 16 : The reset timing sequence of the module ............................................................................. 39
Figure 17 : Module VDD_EXT peripheral reference circuit ..................................................................... 40
Figure 18 : Type-C USB reference circuit with PM7250B ........................................................................41
Figure 19 : Type-C USB reference circuit with CC detector .................................................................... 42
Figure 20 : USB3.1 reference circuit ...................................................................................................... 42
Figure 21 : PCIe interface reference circuit (RC) .....................................................................................44
Figure 22 : PCIe interface reference circuit (EP) ..................................................................................... 44
Figure 23 : PCIe interface reference circuit (RC) for W82 .......................................................................46
Figure 24 : PCIe interface reference circuit (RC) for RTL8125B .............................................................47
Figure 25 : PCIe switch reference circuit ................................................................................................. 48
Figure 26 : Schematic diagram of module connected to IPQxxxx .........................................................49
Figure 27 : SD card reference circuit ........................................................................................................50
Figure 28 : eMMC reference circuit ..........................................................................................................50
Figure 29 : (U)SIM interface reference circuit ..........................................................................................52
Figure 30 : I2S timing ................................................................................................................................55
Figure 31 : Audio codec reference circuit .................................................................................................56
Figure 32 : I2C reference circuit ............................................................................................................... 57
Figure 33 : UART level conversion circuit .............................................................................................. 58
Figure 34 : UART TX level conversion circuit .........................................................................................58
Figure 35 : UART RX level conversion circuit ........................................................................................ 59
Figure 36 : SPI reference circuit ............................................................................................................. 60
Figure 37 : SIM8260A and W82 connect circuit .......................................................................................62
Figure 38 : PM7250B interface diagram circuit ........................................................................................64
Figure 39 : NET_STATUS reference circuit ............................................................................................. 67
Figure 40 : W_DISABLE pin reference circuit ..........................................................................................68