Product Info

LTE Standard Module Series
EC25 Series Hardware Design
EC25_Series_Hardware_Design 7 / 126
3.13. SD Card Interface .................................................................................................................... 55
3.14. Wireless Connectivity Interfaces ............................................................................................. 57
3.14.1. WLAN Interface .............................................................................................................. 59
3.14.2. BT Interface* .................................................................................................................. 60
3.15. ADC Interfaces ........................................................................................................................ 60
3.16. SGMII Interface ........................................................................................................................ 61
3.17. Network Status Indication ........................................................................................................ 63
3.18. STATUS ................................................................................................................................... 65
3.19. Behaviors of RI ........................................................................................................................ 65
3.20. USB_BOOT Interface .............................................................................................................. 66
4 GNSS Receiver ................................................................................................................................... 68
4.1. General Description ................................................................................................................. 68
4.2. GNSS Performance ................................................................................................................. 68
4.3. Layout Guidelines .................................................................................................................... 69
5 Antenna Interfaces ............................................................................................................................. 70
5.1. Main/Rx-diversity Antenna Interfaces...................................................................................... 70
5.1.1. Pin Definition .................................................................................................................. 70
5.1.2. Operating Frequency ..................................................................................................... 70
5.1.3. Reference Design of RF Antenna Interface ................................................................... 72
5.1.4. Reference Design of RF Layout..................................................................................... 72
5.2. GNSS Antenna Interface ......................................................................................................... 74
5.3. Antenna Installation ................................................................................................................. 76
5.3.1. Antenna Requirement .................................................................................................... 76
5.3.2. Recommended RF Connector for Antenna Installation ................................................. 77
6 Electrical, Reliability and Radio Characteristics ............................................................................ 79
6.1. Absolute Maximum Ratings ..................................................................................................... 79
6.2. Power Supply Ratings ............................................................................................................. 80
6.3. Operating and Storage Temperatures .................................................................................... 80
6.4. Current Consumption .............................................................................................................. 81
6.5. RF Output Power ................................................................................................................... 105
6.6. RF Receiving Sensitivity ........................................................................................................ 105
6.7. Electrostatic Discharge .......................................................................................................... 113
6.8. Thermal Consideration .......................................................................................................... 114
7 Mechanical Dimensions .................................................................................................................. 116
7.1. Mechanical Dimensions of the Module.................................................................................. 116
7.2. Recommended Footprint ....................................................................................................... 118
7.3. Design Effect Drawings of the Module .................................................................................. 119
8 Storage, Manufacturing and Packaging ........................................................................................ 120
8.1. Storage .................................................................................................................................. 120
8.2. Manufacturing and Soldering ................................................................................................ 121
8.3. Packaging .............................................................................................................................. 122