User's Manual

MC46 Hardware Interface Description
DRAFT
MC46_HD_V02.8xb Page 5 of 98 21.08.2003
Figures
Figure 1: MC46 block diagram .............................................................................................20
Figure 2: Power supply limits during transmit burst ..............................................................25
Figure 3: Power-on by ignition signal....................................................................................27
Figure 4: Timing of power-on process if VDDLP is not used ................................................28
Figure 5: Timing of power-on process if VDDLP is fed from external source........................28
Figure 6: Deactivating GSM engine by /EMERGOFF signal.................................................32
Figure 7: Schematic of approved charging transistor, trickle charging and ESD protection..36
Figure 8: Battery pack circuit diagram ..................................................................................37
Figure 9: Charging process ..................................................................................................39
Figure 10: Timing of /CTS signal (example for a 2.12 s paging cycle)..................................44
Figure 11: Beginning of power saving if CFUN=5 or 7..........................................................44
Figure 12: RTC supply from capacitor..................................................................................47
Figure 13: RTC supply from rechargeable battery................................................................47
Figure 14: RTC supply from non-chargeable battery............................................................47
Figure 15: Serial interfaces ..................................................................................................48
Figure 16: Audio block diagram............................................................................................51
Figure 17: Schematic of microphone inputs .........................................................................52
Figure 18: DAI timing on transmit path .................................................................................54
Figure 19: DAI timing on receive path ..................................................................................54
Figure 20: SIM card holder of DSB45 Support Box ..............................................................57
Figure 21: Pin numbers of Molex SIM card holder on DSB45 Support Box ..........................57
Figure 22: SYNC signal during transmit burst ......................................................................59
Figure 23: LED Circuit (Example).........................................................................................60
Figure 24: Incoming voice call ..............................................................................................61
Figure 25: Incoming data call ...............................................................................................61
Figure 26: URC transmission ...............................................................................................61
Figure 27: U.FL-R-SMT connector .......................................................................................63
Figure 28: Antenna pad and GND pad .................................................................................63
Figure 29: Never use antenna connector and antenna pad at the same time.......................64
Figure 30: Restricted area around antenna pad ...................................................................64
Figure 31: Mechanical dimensions of U.FL-R-SMT connector..............................................66
Figure 32: U.FL-R-SMT connector with U.FL-LP-040 plug ...................................................67
Figure 33: U.FL-R-SMT connector with U.FL-LP-066 plug ...................................................67
Figure 34: Specifications of U.FL-LP-(V)-040(01) plug.........................................................68
Figure 35: Pin assignment (top view on MC46) ....................................................................71
Figure 36: Maximum burst peak current during transmit burst in mA....................................77
Figure 37: AT audio programming model .............................................................................79
Figure 38: MC46 – top view..................................................................................................87
Figure 39: Mechanical dimensions of MC46.........................................................................88
Figure 40: MC46 bottom view...............................................................................................89
Figure 41: Hirose DF12C receptacle on MC46.....................................................................91
Figure 42: Header Hirose DF12 series .................................................................................91
Figure 43: Mechanical dimensions of Hirose DF12 connector..............................................92
Figure 44: Reference equipment for approval ......................................................................95