Specifications

Product Technical Specification & Customer Design Guidelines
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WA_DEV_Q64_PTS_001-003 January 9, 2009
3.2.2
Electrical Characteristics ............................................................... 22
3.2.3 Power Supply Pin-out ................................................................... 22
3.3 Power Consumption ............................................................................. 23
3.3.1 Power Consumption without Open AT
®
Processing ...................... 24
3.3.2 Power Consumption with a Dhrystone Open AT
®
Application....... 25
3.3.3 Consumption Waveform Samples ................................................. 27
3.3.4 Recommendations for Less Consumption ..................................... 29
3.4 Electrical Information for Digital I/O....................................................... 30
3.5 I2C Bus................................................................................................. 32
3.5.1 Features........................................................................................ 32
3.5.2 Pin Description.............................................................................. 33
3.6 Main Serial Link (UART1)...................................................................... 34
3.6.1 Features........................................................................................ 34
3.6.2 Pin Description.............................................................................. 34
3.6.3 Application.................................................................................... 36
3.7 Auxiliary Serial Link (UART2) ................................................................ 39
3.7.1 Features........................................................................................ 39
3.7.2 Pin Description.............................................................................. 39
3.7.3 Application.................................................................................... 40
3.8 SIM Interface ........................................................................................ 41
3.8.1 Features........................................................................................ 41
3.8.2 Pin Description.............................................................................. 43
3.8.3 Application.................................................................................... 43
3.9 General Purpose Input/Output .............................................................. 45
3.9.1 Features........................................................................................ 45
3.9.2 Pin Description.............................................................................. 45
3.10 Analog to Digital Converter................................................................... 47
3.10.1 Features........................................................................................ 47
3.10.2 Pin Description.............................................................................. 49
3.10.3 Application.................................................................................... 49
3.11 Analogue Audio Interface...................................................................... 50
3.11.1 Microphone Features .................................................................... 50
3.11.2 Speaker Features .......................................................................... 53
3.11.3 Pin Description.............................................................................. 55
3.11.4 Application.................................................................................... 56
3.11.5 Design Recommendation .............................................................. 63
3.12 PWM / Buzzer Output........................................................................... 67
3.12.1 Features........................................................................................ 67
3.12.2 Pin Description.............................................................................. 67
3.12.3 Application.................................................................................... 68
3.13 Battery Charging Interface .................................................................... 70
3.13.1 Implementation............................................................................. 70
3.13.2 Ni-Cd / Ni-Mh Charging Algorithm ................................................ 71
3.13.3 Li-Ion Charging Algorithm............................................................. 72
3.13.4 Controlled Pre-charging Hardware ................................................ 73
3.13.5 Temperature Monitoring ............................................................... 73
3.14 ON / OFF Signal .................................................................................... 74