User's Manual Part 1

MC75 Hardware Interface Description
Strictly confidential / Draft
s
MC75_V00.190a Page 5 of 91 15.02.2005
Table 16: Signal description...................................................................................................67
Table 17: Measured electrostatic values................................................................................72
Table 18: Summary of reliability test conditions ..................................................................... 73
Table 19: Technical specifications of Molex board-to-board connector .................................77
Table 20: List of parts and accessories..................................................................................84
Table 21: Molex sales contacts (subject to change) ..............................................................85
Table 22: Hirose sales contacts (subject to change)..............................................................85
Figures
Figure 1: MC75 system overview ...........................................................................................19
Figure 2: MC75 block diagram ............................................................................................... 20
Figure 3: Power supply limits during transmit burst................................................................ 22
Figure 4: Position of the reference points BATT+ and GND .................................................. 23
Figure 5: Power-on with operating voltage at BATT+ applied before activating IGT.............. 25
Figure 6: Power-on with IGT held low before switching on operating voltage at BATT+ .......26
Figure 7: Signal states during turn-off procedure ...................................................................29
Figure 8: Battery pack circuit diagram....................................................................................35
Figure 9: RTC supply from capacitor...................................................................................... 38
Figure 10: RTC supply from rechargeable battery .................................................................38
Figure 11: RTC supply from non-chargeable battery .............................................................38
Figure 12: Serial interface ASC0............................................................................................ 40
Figure 13: Serial interface ASC1............................................................................................ 42
Figure 14: USB circuit ............................................................................................................43
Figure 15: I2C interface connected to VCC of application ..................................................... 46
Figure 16: I2C interface connected to VEXT line of MC75..................................................... 46
Figure 17: SD card interface (example with power supply from module’s VEXT line) ........... 48
Figure 18: Audio block diagram.............................................................................................. 49
Figure 19: Single ended microphone input............................................................................. 50
Figure 20: Differential microphone input ................................................................................ 51
Figure 21: Line input configuration with OpAmp .................................................................... 52
Figure 22: Differential loudspeaker configuration...................................................................53
Figure 23: Single ended loudspeaker configuration............................................................... 53
Figure 24: PCM interface application ..................................................................................... 54
Figure 25: PCM timing............................................................................................................ 55
Figure 26: SYNC signal during transmit burst ........................................................................ 56
Figure 27: LED Circuit (Example)...........................................................................................57
Figure 28: Never use antenna connector and antenna pad at the same time ....................... 59
Figure 29: Restricted area around antenna pad..................................................................... 59
Figure 30: Mechanical dimensions of U.FL-R-SMT connector...............................................61
Figure 31: U.FL-R-SMT connector with U.FL-LP-040 plug ....................................................62
Figure 32: U.FL-R-SMT connector with U.FL-LP-066 plug ....................................................62
Figure 33: Specifications of U.FL-LP-(V)-040(01) plug .......................................................... 63
Figure 34: Pin assignment (component side of MC75) .......................................................... 66
Figure 35: MC75 – top view ................................................................................................... 74
Figure 36: Dimensions of MC75............................................................................................. 75
Figure 37: Molex board-to-board connector 52991-0808 on MC75 .......................................78
Figure 38: Mating board-to-board connector 53748-0808 on application .............................. 79
Figure 39: MC75 sample application (draft) ........................................................................... 81
Figure 40: Reference equipment for Type Approval ..............................................................82
Figure 41: Lithium Ion battery from VARTA ...........................................................................90
Figure 42: Lithium Polymer battery from VARTA ................................................................... 91