Manuali utente per Gemalto M2M GmbH AC75

Sommario

• Document History

  7
• Introduction

  9
  • Related Documents

    9
  • Terms and Abbreviations

    10
  • Type Approval

    13
    • SAR Requirements Specific to Portable Mobiles

      15
  • Safety Precautions

    16
• Product Concept

  18
  • Key Features at a Glance

    18
  • AC65/AC75 System Overview

    21
  • Circuit Concept

    22
• Application Interface

  23
  • Operating Modes

    24
  • Power Supply

    26
    • Minimizing Power Losses

      26
    • Measuring the Supply Voltage VBATT+

      27
    • Monitoring Power Supply by AT Command

      27
  • Power-Up / Power-Down Scenarios

    28
    • Turn on AC65/AC75

      28
      • Turn on AC65/AC75 Using Ignition Line IGT

        28
      • Configuring the IGT Line for Use as ON/OFF Switch

        31
      • Turn on AC65/AC75 Using the VCHARGE Signal

        32
      • Reset AC65/AC75 via AT+CFUN Command

        32
      • Reset or Turn off AC65/AC75 in Case of Emergency

        33
      • Using EMERG_RST to Reset Application(s) or External Device(s

        33
    • Signal States after Startup

      34
    • Turn off AC65/AC75

      36
      • Turn off AC65/AC75 Using AT Command

        36
      • Leakage Current in Power-Down Mode

        37
      • Turn on/off AC65/AC75 Applications with Integrated USB

        38
    • Automatic Shutdown

      39
      • Thermal Shutdown

        39
      • Deferred Shutdown at Extreme Temperature Conditions

        40
      • Monitoring the Board Temperature of AC65/AC75

        40
      • Undervoltage Shutdown if Battery NTC is Present

        40
      • Undervoltage Shutdown if no Battery NTC is Present

        41
      • Overvoltage Shutdown

        41
  • Automatic EGPRS/GPRS Multislot Class Change

    42
  • Charging Control

    43
    • Hardware Requirements

      43
    • Software Requirements

      43
    • Battery Pack Requirements

      44
    • Charger Requirements

      45
    • Implemented Charging Technique

      46
    • Operating Modes during Charging

      47
  • Power Saving

    49
    • Network Dependency of SLEEP Modes

      49
    • Timing of the CTSx Signal in CYCLIC SLEEP Mode 7

      50
    • Timing of the RTSx Signal in CYCLIC SLEEP Mode 9

      50
  • Summary of State Transitions (Except SLEEP Mode)

    51
  • RTC Backup

    52
  • SIM Interface

    53
    • Installation Advice

      54
  • Serial Interface ASC0

    55
  • Serial Interface ASC1

    57
  • USB Interface

    58
  • I2C Interface

    59
  • SPI Interface

    61
  • Audio Interfaces

    63
    • Speech Processing

      64
    • Microphone Circuit

      64
      • Single-ended Microphone Input

        65
      • Differential Microphone Input

        66
      • Line Input Configuration with OpAmp

        67
    • Loudspeaker Circuit

      68
    • Digital Audio Interface (DAI)

      69
      • Master Mode

        70
      • Slave Mode

        72
  • GPIO Interface

    74
    • Using the GPIO10 Pin as Pulse Counter

      74
  • Control Signals

    75
    • Synchronization Signal

      75
    • Using the SYNC Pin to Control a Status LED

      76
    • Behavior of the RING0 Line (ASC0 Interface only)

      77
    • PWR_IND Signal

      77
• Antenna Interface

  78
  • Antenna Diagnostic

    79
  • Antenna Connector

    80
• Electrical, Reliability and Radio Characteristics

  82
  • Absolute Maximum Ratings

    82
  • Operating Temperatures

    83
  • Storage Conditions

    84
  • Reliability Characteristics

    85
  • Pin Assignment and Signal Description

    86
  • Power Supply Ratings

    93
  • Electrical Characteristics of the Voiceband Part

    96
    • Setting Audio Parameters by AT Commands

      96
    • Audio Programming Model

      97
    • Characteristics of Audio Modes

      98
    • Voiceband Receive Path

      99
    • Voiceband Transmit Path

      100
  • Air Interface

    101
  • Electrostatic Discharge

    102
• Mechanics

  103
  • Mechanical Dimensions of AC65/AC75

    103
  • Mounting AC65/AC75 to the Application Platform

    105
  • Board-to-Board Application Connector

    106
• Sample Application

  109
• Reference Approval

  111
  • Reference Equipment for Type Approval

    111
  • Compliance with FCC Rules and Regulations

    112
• Appendix

  113
  • List of Parts and Accessories

    113
  • Fasteners and Fixings for Electronic Equipment

    115
    • Fasteners from German Supplier ETTINGER GmbH

      115