Quectel EC25-V - Page 5

LTE Module Series
EC25-V User Manual
EC25-V_User_Manual Confidential / Released 4 / 69
3.11. UART Interface ........................................................................................................................ 36
3.12. PCM and I2C Interface ............................................................................................................ 38
3.13. ADC Function .......................................................................................................................... 41
3.14. Network Status Indication ........................................................................................................ 41
3.15. STATUS ................................................................................................................................... 42
3.16. Behavior of the RI .................................................................................................................... 43
4 GNSS Receiver ................................................................................................................................... 45
4.1. General Description ................................................................................................................. 45
4.2. GNSS Performance ................................................................................................................. 45
4.3. Layout Guideline ...................................................................................................................... 46
5 Antenna Interface ............................................................................................................................... 47
5.1. Main/Rx-diversity Antenna Interface ........................................................................................ 47
5.1.1. Pin Definition .................................................................................................................. 47
5.1.2. Operating Frequency ..................................................................................................... 47
5.1.3. Reference Design .......................................................................................................... 47
5.2. GNSS Antenna Interface ......................................................................................................... 48
5.3. Antenna Installation ................................................................................................................. 49
5.3.1. Antenna Requirement .................................................................................................... 49
5.3.2. Install the Antenna with RF Connector .......................................................................... 50
6 Electrical, Reliability and Radio Characteristics ............................................................................ 53
6.1. Absolute Maximum Ratings ..................................................................................................... 53
6.2. Power Supply Ratings ............................................................................................................. 53
6.3. Operating Temperature ............................................................................................................ 54
6.4. Current Consumption .............................................................................................................. 54
6.5. RF Output Power ..................................................................................................................... 54
6.6. RF Receiving Sensitivity .......................................................................................................... 55
6.7. Electrostatic Discharge ............................................................................................................ 55
7 Mechanical Dimensions .................................................................................................................... 56
7.1. Mechanical Dimensions of the Module.................................................................................... 56
7.2. Footprint of Recommendation ................................................................................................. 58
7.3. Top View of the Module ........................................................................................................... 59
7.4. Bottom View of the Module ...................................................................................................... 59
8 Storage and Manufacturing .............................................................................................................. 60
8.1. Storage .................................................................................................................................... 60
8.2. Manufacturing and Welding ..................................................................................................... 60
8.3. Packaging ................................................................................................................................ 61
9 Appendix A Reference ....................................................................................................................... 63