Wavecom Q2686, Technical Specifications

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© 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.
WM_PRJ_Q2686_PTS_001-010 June 30, 2009
Q2686 Wireless CPU
®
3.4.1.5 SPI2 Bus: Pins description ...................................................... 35
3.4.2 I2C Bus ......................................................................................... 36
3.4.2.1 I²C Waveforms ........................................................................ 36
3.4.2.2 I²C Bus Pin-out ....................................................................... 37
3.5 Keyboard Interface................................................................................ 37
3.6 Main Serial Link (UART1) ...................................................................... 38
3.7 Auxiliary Serial Link (UART2) ................................................................ 40
3.8 SIM Interface ........................................................................................ 41
3.8.1 General Description....................................................................... 41
3.9 General Purpose Input/Output .............................................................. 43
3.10 Analog to Digital Converter ................................................................... 45
3.11 Analog Audio Interface ......................................................................... 46
3.11.1 Microphone Features .................................................................... 46
3.11.1.1 MIC1 Microphone Inputs ........................................................ 46
3.11.1.2 MIC2 Microphone Inputs ........................................................ 47
3.11.2 Speaker Features .......................................................................... 49
3.11.2.1 Speakers Outputs Power......................................................... 49
3.11.3 Pin description .............................................................................. 51
3.12 Buzzer Output ...................................................................................... 52
3.13 Battery Charging Interface .................................................................... 53
3.13.1 Ni-Cd / Ni-Mh Charging Algorithm ................................................ 53
3.13.2 Li-Ion Charging Algorithm ............................................................. 55
3.13.3 Pre-charging ................................................................................. 56
3.13.4 Temperature Monitoring ............................................................... 56
3.14 ON / ~OFF signal .................................................................................. 58
3.14.1 Operating Sequences .................................................................... 58
3.14.1.1 Power-ON ............................................................................... 58
3.14.1.2 Power-OFF.............................................................................. 61
3.15 BOOT Signal ......................................................................................... 62
3.16 Reset Signal (~RESET) .......................................................................... 63
3.17 External Interrupt.................................................................................. 65
3.18 VCC_2V8 and VCC_1V8 Output............................................................. 66
3.19 BAT-RTC (Backup Battery).................................................................... 67
3.19.1 Interface Description ..................................................................... 67
3.20 LED0 Signal .......................................................................................... 69
3.21 Digital Audio Interface (PCM)................................................................ 72
3.21.1 Description ................................................................................... 72
3.22 USB 2.0 Interface.................................................................................. 75
3.23 RF Interface .......................................................................................... 76
3.23.1 RF Connections............................................................................. 76
3.23.2 RF Performance ............................................................................ 76
3.23.3 Antenna Specifications ................................................................. 77
4 Technical Specifications ........................................................... 78