User's Manual

A7608SA-H_User Manual_V1.00
2022-08-26
Smart Machine Smart Decision
Figure Index
Figure 1: A7608SA-H block diagram.................................................................................................................. 13
Figure 2: Pin assignment overview...................................................................................................................... 16
Figure 3: Dimensions (Unit: mm)........................................................................................................................ 22
Figure 4: Footprint recommendation (Unit: mm).................................................................................................23
Figure 5: VBAT voltage drop during burst emission (GSM/GPRS).................................................................... 24
Figure 6: Power supply application circuit...........................................................................................................25
Figure 7: Linear regulator reference circuit......................................................................................................... 26
Figure 8: Switching mode power supply reference circuit...................................................................................26
Figure 9: Reference power on/off circuit............................................................................................................. 27
Figure 10: Power on timing sequence.................................................................................................................. 27
Figure 11: Power off timing sequence..................................................................................................................29
Figure 12: Reference reset circuit........................................................................................................................ 29
Figure 13: UART full modem.............................................................................................................................. 30
Figure 14: UART null modem..............................................................................................................................30
Figure 15: Reference circuit of level shift............................................................................................................31
Figure 16: RI behaviour（SMS and URC report）
.............................................................................................
31
Figure 17: RI behaviour
（
voice call
）
................................................................................................................
32
Figure 18: USB reference circuit......................................................................................................................... 32
Figure 19: USIM interface reference circuit........................................................................................................ 34
Figure 20: Amphenol SIM card socket.................................................................................................................35
Figure 21: PCM_SYNC timing............................................................................................................................36
Figure 22: EXT codec to module timing..............................................................................................................36
Figure 23: Module to EXT codec timing............................................................................................................. 37
Figure 24: Audio codec reference circuit............................................................................................................. 38
Figure 25: SD reference circuit............................................................................................................................ 39
Figure 26: I2C reference circuit........................................................................................................................... 40
Figure 27: NETLIGHT reference circuit..............................................................................................................40
Figure 28: Flight mode switch reference circuit.................................................................................................. 41
Figure 29: ISINK reference circuit.......................................................................................................................42
Figure 30: Antenna matching circuit (MAIN_ANT)............................................................................................46
Figure 31: Antenna matching circuit (AUX_ANT)............................................................................................. 47
Figure 32: Active antenna circuit......................................................................................................................... 48
Figure 33: Passive antenna circuit (Default)........................................................................................................ 49
Figure 34: Top and bottom view of A7608SA-H................................................................................................. 55
Figure 35: Label information............................................................................................................................... 56
Figure 36: The ramp-soak-spike reflow profile of A7608SA-H.......................................................................... 57
Figure 37: packaging diagram..............................................................................................................................59
Figure 38: Tray drawing.......................................................................................................................................59
Figure 39: Small carton drawing.......................................................................................................................... 60
Figure 40: Big carton drawing............................................................................................................................. 60
Figure 41: Reference design.................................................................................................................................62