Manuais de utilizador para Shanghai ZhiWu Communication Technology Co. Ltd MX680

índice analítico

• Version History

  6
• 1. Introduction

  7
• 2. MX680 Overview

  7
  • 2.1. MX680 Key Features

    7
  • 2.2. Operating Mode

    9
  • 2.3. Functional Diagram

    11
• 3. Package Information

  12
  • 3.1. Pin out Diagram

    12
  • 3.2. Pin Description

    13
  • 3.3. Package Dimensions

    17
• 4. Application Interface

  19
  • 4.1. Power Supply

    19
    • 4.1.1. Power supply pin

      21
    • 4.1.2. Monitoring Power Supply

      21
  • 4.2. Power on/down Scenarios

    22
    • 4.2.1. Power on MX680

      22
    • 4.2.2. Power down MX680

      23
      • 4.2.2.1. Power down MX680 by the PWRKEY Pin

        24
      • 4.2.2.2. Power down MX680 by AT Command

        24
      • 4.2.2.3. Over-voltage or Under-voltage Power down

        25
      • 4.2.2.4. Over-temperature or Under-temperature Power down

        25
  • 4.3. Power Saving Mode

    26
    • 4.3.1. Minimum Functionality Mode

      26
    • 4.3.2. Sleep Mode (AT+QSCLK=1)

      26
    • 4.3.3. Wake Up MX680 from Sleep Mode (AT+QSCLK=1)

      27
  • 4.4. Serial Port and USB Interface

    27
    • 4.4.1. Function of Serial Port

      28
    • 4.4.2. Serial Interfaces

      28
    • 4.4.3. Debug Interface

      30
    • 4.4.4. Software Upgrade and Debug

      31
    • 4.4.4. UART Application

      32
  • 4.5. SIM Card Interface

    34
    • 4.5.1. SIM Card Application

      34
    • 4.5.2.6 Pin SIM Cassette

      35
  • 4.6. RI Behaviors

    36
  • 4.7. Network Status Indication

    38
  • 4.8. Operating Status Indication

    39
  • 4.8. Antenna Interface

    40
    • 4.8.1. Antenna Interface

      40
  • 4.9. Audio Interfaces

    42
    • 4.9.1 Microphone Interfaces Configuration

      43
    • 4.9.2 Speaker Interfaces Configuration

      43
    • 4.9.3 Earphone Interfaces Configuration

      44
    • 4.9.4 Audio Electronic Characteristic

      44
    • 4.9.5 TDD

      45
• 5. Electrical, Reliability and Radio Characteristics

  46
  • 5.1 Absolute Maximum Ratings

    46
  • 5.2 Operating Temperature

    46
  • 5.3 Digital Interface Characteristics

    47
  • 5.4 SIM Card Interface

    47
  • 5.5 SIM_VDD Characteristics

    48
  • 5.6 VDD_EXT Characteristics

    48
  • 5.7 Current Consumption(VBAT=4.0V)

    48
  • 5.8 Electro-Static Discharge

    50
  • 5.9 Radio Characteristics

    51
    • 5.9.1. Module RF Output Power

      51
    • 5.9.2. Module RF Receive Sensitivity

      52
    • 5.9.3. Module Operating Frequencies

      52
• 6. Manufacturing

  53
  • 6.1. Top and Bottom View of MX680

    53
  • 6.2. Typical Solder Reflow Profile

    54
  • 6.3. The Moisture Sensitivity Level(MSL)

    54
• 7. Appendix

  54
  • 7.1. Terms and Abbreviations

    54
  • 7.2. Safety Caution

    57