Siemens MC45 Manual page 4

MC45 Hardware Interface Description
P R E L I M I N A R Y
3.6.2 Speech processing ...............................................................................51
3.6.3 DAI timing.............................................................................................51
3.7 SIM interface......................................................................................................53
3.7.1 Requirements for using the CCIN pin ...................................................54
3.7.2 Design considerations for SIM card holder ...........................................55
3.7.3 Grounding the SIM interface.................................................................56
3.8 Control signals ...................................................................................................57
3.8.1 Inputs ...................................................................................................57
3.8.2 Outputs.................................................................................................58
3.8.2.1 Synchronization signal ..............................................................58
3.8.2.2 Using the SYNC pin to control a status LED .............................59
3.8.2.3 Behaviour of the /RING0 line (RS-232(0) interface only)...........60
3.9 Electrical specifications of the application interface............................................61
4 Antenna interface (antenna reference point - ARP) ...............................................65
5 Physical characteristics ...........................................................................................66
5.1 Mechanical dimensions of MC45........................................................................66
5.2 Mounting MC45 onto the application platform ....................................................69
5.3 Board-to-board connector ..................................................................................70
5.3.1 Mechanical dimensions of the Hirose DF12 connector .........................71
5.3.2 Adapter cabling ....................................................................................71
5.4 Antenna design ..................................................................................................72
5.4.1 Hirose antenna connector ....................................................................72
5.4.2 Antenna pad .........................................................................................75
6 Electrical, reliability and radio characteristics .......................................................76
6.1 Absolute maximum ratings .................................................................................76
6.2 Operating temperatures .....................................................................................76
6.3 Reliability characteristics ....................................................................................77
6.4 Power supply ratings..........................................................................................78
6.4.1 Current consumption during transmit burst...........................................79
6.5 Electrical characteristics of the voiceband part...................................................81
6.5.1 Setting audio parameters by AT commands .........................................81
6.5.2 Audio programming model ...................................................................82
6.5.3 Characteristics of audio modes ............................................................83
6.5.4 Voiceband receive path ........................................................................84
6.5.5 Voiceband transmit path.......................................................................85
6.6 Air interface........................................................................................................86
6.7 Electrostatic discharge .......................................................................................87
7 Reference Approval ..................................................................................................88
7.1 Reference Equipment ........................................................................................88
8 List of parts and accessories ...................................................................................89
MC45_HD_01_V00.02a Page 4 of 90 12.08.2002