Specifications

WM_PRJ_Q2400_PTS_001 - 003
6th November 2002
confidential ©
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This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged
without prior written agreement.
Ce document est la propriété exclusive de WAVECOM. Il ne peut être communiqué ou divulgué à
des tiers sans son autorisation préalable.
2.11
Audio interface ......................................................................................22
2.11.1 Common microphone inputs characteristics ..................................23
2.11.2 Common speaker outputs characteristics ......................................24
2.11.2.1.1 Differential Connection.......................................................24
2.11.2.2 Single-ended Connection .........................................................24
2.11.3 Microphone inputs ........................................................................26
2.11.3.1 Microphone 2 Inputs ...............................................................26
2.11.3.2 Microphone 1 Inputs ...............................................................27
2.11.3.2.1 Differential connection .......................................................27
2.11.3.2.2 Single-ended connection....................................................28
2.11.4 Speaker outputs ............................................................................29
2.11.4.1 Speaker 2 Outputs...................................................................29
2.11.4.2 Speaker 1 Outputs...................................................................29
2.11.5 Buzzer Output ...............................................................................29
2.12 Battery charging interface .....................................................................30
2.12.1 Li-ion charging procedure ..............................................................31
2.12.2 How to define R1 and C1...............................................................31
2.13 ON / ~OFF ..........................................................................................32
2.13.1 Operating sequences .....................................................................33
2.13.1.1 Power ON ................................................................................33
2.13.1.2 Power OFF...............................................................................34
2.14 BOOT (optional).....................................................................................34
2.15 Reset signal (~RST) ...............................................................................35
2.15.1 Reset sequence .............................................................................36
2.16 External Interrupt (~INTR) .....................................................................37
2.17 VCC output ..........................................................................................37
2.18 VCC_RTC (Real Time Clock) ...................................................................38
2.18.1 Interface description ......................................................................38
2.18.2 Typical implementation..................................................................38
2.18.2.1 Capacitor .................................................................................38
2.18.2.2 Super Capacitor .......................................................................39
2.18.2.3 Battery cell with regulator........................................................39
2.18.2.4 Non Rechargeable battery........................................................40
2.19 RF interface ..........................................................................................40
2.19.1 RF connection................................................................................40
2.19.1.1 Antenna directly connected to the module: matching circuit....41
2.19.2 RF performances ...........................................................................43
2.19.3 Antenna specifications ..................................................................43
3 Technical specifications ............................................................. 44
3.1 Interfaces ..............................................................................................44
3.2 Climatic and mechanical environments .................................................47
3.3 Mechanical specifications......................................................................48
3.3.1 Physical characteristics..................................................................48
3.3.2 Mechanical drawings ....................................................................48