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Quectel EC21-E manuals

EC21-E first page preview

EC21-E

Brand: Quectel | Category: Control Unit
Table of contents
  1. Updated function diagram in Figure
  2. 4. Added BT interface in Chapter 3.18.2
  3. Table Of Contents
  4. Table Of Contents
  5. Table Of Contents
  6. Table Of Contents
  7. Table Of Contents
  8. Table Of Contents
  9. Introduction
  10. Safety Information
  11. Product Concept
  12. Key Features
  13. Functional Diagram
  14. Application Interfaces
  15. Pin Assignment
  16. Pin Description
  17. Operating Modes
  18. USB Application with USB Remote Wakeup Function
  19. USB Application with USB Suspend/Resume and RI Function
  20. USB Application without USB Suspend Function
  21. Airplane Mode
  22. Decrease Voltage Drop
  23. Reference Design for Power Supply
  24. Monitor the Power Supply
  25. FIGURE 11: TURN ON THE MODULE USING KEYSTROKE
  26. Turn off Module
  27. Reset the Module
  28. USIM Card Interface
  29. FIGURE 17: REFERENCE CIRCUIT OF USIM CARD INTERFACE WITH AN 8-PIN USIM CARD CONNECTOR
  30. USB Interface
  31. FIGURE 19: REFERENCE CIRCUIT OF USB APPLICATION
  32. UART Interfaces
  33. TABLE 13: LOGIC LEVELS OF DIGITAL I/O
  34. PCM and I2C Interfaces
  35. TABLE 14: PIN DEFINITION OF PCM AND I2C INTERFACES
  36. FIGURE 24: REFERENCE CIRCUIT OF PCM APPLICATION WITH AUDIO CODEC
  37. ADC Function
  38. Network Status Indication
  39. STATUS
  40. Behavior of the RI
  41. TABLE 21: PIN DEFINITION OF THE SGMII INTERFACE
  42. FIGURE 28: REFERENCE CIRCUIT OF SGMII INTERFACE WITH PHY AR8033 APPLICATION
  43. Wireless Connectivity Interfaces
  44. FIGURE 29: REFERENCE CIRCUIT OF WIRELESS CONNECTIVITY INTERFACES WITH FC20 MODULE
  45. WLAN Interface
  46. USB_BOOT Interface
  47. GNSS Receiver
  48. Layout Guidelines
  49. Antenna Interfaces
  50. Reference Design of RF Antenna Interface
  51. Reference Design of RF Layout
  52. FIGURE 34: COPLANAR WAVEGUIDE LINE DESIGN ON A 4-LAYER PCB (LAYER 3 AS REFERENCE GROUND)
  53. GNSS Antenna Interface
  54. Antenna Installation
  55. Recommended RF Connector for Antenna Installation
  56. FIGURE 39: SPACE FACTOR OF MATED CONNECTOR (UNIT: MM)
  57. Electrical, Reliability and Radio Characteristics
  58. Operating Temperature
  59. Current Consumption
  60. TABLE 34: EC21-AUT CURRENT CONSUMPTION
  61. TABLE 35: EC21-E CURRENT CONSUMPTION
  62. TABLE 36: EC21-KL CURRENT CONSUMPTION
  63. TABLE 37: EC21-V CURRENT CONSUMPTION
  64. TABLE 39: GNSS CURRENT CONSUMPTION OF EC21 SERIES MODULE
  65. RF Output Power
  66. TABLE 42: EC21-A CONDUCTED RF RECEIVING SENSITIVITY
  67. TABLE 45: EC21-AUTL CONDUCTED RF RECEIVING SENSITIVITY
  68. TABLE 48: EC21-J CONDUCTED RF RECEIVING SENSITIVITY
  69. Electrostatic Discharge
  70. Mechanical Dimensions
  71. FIGURE 41: MODULE BOTTOM DIMENSIONS (BOTTOM VIEW)
  72. Recommended Footprint
  73. Design Effect Drawings of the Module
  74. Storage, Manufacturing and Packaging
  75. Manufacturing and Soldering
  76. Packaging
  77. Appendix A References
  78. Appendix B GPRS Coding Schemes
  79. Appendix C GPRS Multi-slot Classes
  80. Appendix D EDGE Modulation and Coding Schemes
EC21-E first page preview

EC21-E

Brand: Quectel | Category: Control Unit
EC21-E first page preview

EC21-E

Brand: Quectel | Category: GSM/GPRS Modules
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