Specifications

XT55 Hardware Interface Description
Confidential / Preliminary
s
mo b i l e
XT55_hd_v00.02 Page 5 of 116 17.03.2004
6.6 Electrical characteristics of the voiceband part...................................................99
6.6.1 Setting audio parameters by AT commands.........................................99
6.6.2 Audio programming model .................................................................100
6.6.3 Characteristics of audio modes ..........................................................101
6.6.4 Voiceband receive path ......................................................................102
6.6.5 Voiceband transmit path.....................................................................103
6.7 Air interface of the XT55 GSM/GPRS part .......................................................104
6.8 Electrostatic discharge .....................................................................................105
6.9 Reliability characteristics ..................................................................................106
7 Mechanics................................................................................................................107
7.1 Mechanical dimensions of XT55 ......................................................................107
7.2 Mounting XT55 onto the application platform ...................................................109
7.3 Board-to-board connector ................................................................................111
8 Reference approval.................................................................................................113
8.1 Reference equipment for type approval ...........................................................113
8.2 Compliance with FCC Rules and Regulations ..................................................114
9 List of parts and accessories.................................................................................115