Quectel UC20 - Page 6

UMTS/HSPA Module Series
UC20 Hardware Design
UC20_Hardware_Design Confidential / Released 5 / 82
3.15. Network Status Indication ........................................................................................................ 48
3.16. Operating Status Indication ..................................................................................................... 49
3.16.1. STATUS .......................................................................................................................... 49
3.16.2. SLEEP_IND.................................................................................................................... 49
3.17. Behavior of the RI .................................................................................................................... 51
4 GNSS Receiver ................................................................................................................................... 52
4.1. General Description ................................................................................................................. 52
4.2. GNSS Performance ................................................................................................................. 53
4.3. Layout Guideline ...................................................................................................................... 54
5 Antenna Interface ............................................................................................................................... 55
5.1. GSM/UMTS Antenna Interface ................................................................................................ 55
5.1.1. Pin Definition .................................................................................................................. 55
5.1.2. Operating Frequency ..................................................................................................... 55
5.1.3. Reference Design .......................................................................................................... 56
5.2. GNSS Antenna Interface ......................................................................................................... 57
5.2.1. Reference Design for Passive Antenna ......................................................................... 57
5.2.2. Reference Design for Active Antenna ............................................................................ 58
5.3. Antenna Installation ................................................................................................................. 58
5.3.1. Antenna Requirement .................................................................................................... 58
5.3.2. Install the Antenna with RF Connector .......................................................................... 59
6 Electrical, Reliability and Radio Characteristics ............................................................................ 61
6.1. Absolute Maximum Ratings ..................................................................................................... 61
6.2. Power Supply Ratings ............................................................................................................. 61
6.3. Operating Temperature ............................................................................................................ 62
6.4. Current Consumption .............................................................................................................. 62
6.5. RF Output Power ..................................................................................................................... 66
6.6. RF Receiving Sensitivity .......................................................................................................... 67
6.7. Electrostatic Discharge ............................................................................................................ 67
7 Mechanical Dimensions .................................................................................................................... 68
7.1. Mechanical Dimensions of the Module.................................................................................... 68
7.2. Footprint of Recommendation ................................................................................................. 71
7.3. Top View of the Module ........................................................................................................... 72
7.4. Bottom View of the Module ...................................................................................................... 72
8 Storage and Manufacturing .............................................................................................................. 73
8.1. Storage..................................................................................................................................... 73
8.2. Manufacturing and Welding ..................................................................................................... 73
8.3. Packaging ................................................................................................................................ 74
9 Appendix A Reference ....................................................................................................................... 76
10 Appendix B GPRS Coding Scheme ................................................................................................. 80
11 Appendix C GPRS Multi-slot Class .................................................................................................. 81
12 Appendix D EDGE Modulation and Coding Scheme ..................................................................... 82
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