Specifications

MC55/56 Hardware Interface Description
Confidential / Released
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MC55/56_hd_v04.00a Page 4 of 108 24.08.2006
3.10
Audio interfaces .................................................................................................56
3.10.1 Microphone circuit ................................................................................57
3.10.2 Speech processing...............................................................................58
3.10.3 DAI timing.............................................................................................58
3.11 SIM interface......................................................................................................60
3.11.1 Requirements for using the CCIN pin ...................................................61
3.11.2 Design considerations for SIM card holder ...........................................62
3.12 Control signals ...................................................................................................63
3.12.1 Inputs ...................................................................................................63
3.12.2 Outputs.................................................................................................64
3.12.2.1 Synchronization signal..........................................................................64
3.12.2.2 Using the SYNC pin to control a status LED.........................................65
3.12.2.3 Behavior of the /RING0 line (ASC0 interface only) ...............................67
4 Antenna interface......................................................................................................68
4.1 Antenna installation............................................................................................68
4.1.1 Antenna pad.........................................................................................70
4.1.1.1 Suitable cable types .............................................................................70
4.1.2 Hirose antenna connector ....................................................................71
5 Electrical, reliability and radio characteristics .......................................................75
5.1 Absolute maximum ratings.................................................................................75
5.2 Operating temperatures .....................................................................................76
5.3 Storage conditions .............................................................................................77
5.4 Reliability characteristics ....................................................................................78
5.5 Electrical specifications of the application interface............................................79
5.6 Power supply ratings..........................................................................................84
5.6.1 Current consumption during transmit burst...........................................85
5.7 Electrical characteristics of the voiceband part...................................................90
5.7.1 Setting audio parameters by AT commands.........................................90
5.7.2 Audio programming model ...................................................................91
5.7.3 Characteristics of audio modes ............................................................92
5.7.4 Voiceband receive path ........................................................................93
5.7.5 Voiceband transmit path.......................................................................94
5.8 Air interface........................................................................................................95
5.9 Electrostatic discharge .......................................................................................96
6 Mechanics..................................................................................................................97
6.1 Mechanical dimensions of MC55/56...................................................................97
6.2 Mounting MC55/56 onto the application platform ...............................................99
6.3 Board-to-board connector ................................................................................100
6.3.1 Mechanical dimensions of the Hirose DF12 connector .......................101
6.3.2 Adapter cabling ..................................................................................101
7 Reference Approval ................................................................................................102
7.1 Reference Equipment for Type Approval .........................................................102
7.2 Compliance with FCC Rules and Regulations (MC55 only)..............................103
7.3 Compliance with FCC Rules and Regulations (MC56 only)..............................104
8 Design example.......................................................................................................105
9 List of parts and accessories.................................................................................107