User's Manual

UMTS/HSPA Module Series
UC20 User Manual
UC20_Hardware_Design Confidential / Released 5 / 84
3.10. UART Interface .................................................................................................................... 39
3.11. USIM Card Interface ............................................................................................................ 42
3.12. USB Interface ...................................................................................................................... 45
3.13. PCM and I2C Interface ........................................................................................................ 46
3.14. ADC Function ...................................................................................................................... 49
3.15. Network Status Indication .................................................................................................... 50
3.16. Operating Status Indication .................................................................................................. 51
3.16.1. STATUS ..................................................................................................................... 51
3.16.2. SLEEP_IND ............................................................................................................... 51
3.17. Behavior of the RI ................................................................................................................ 53
4 GNSS Receiver ................................................................................................................................... 54
4.1. General Description ............................................................................................................. 54
4.2. GNSS Performance ............................................................................................................. 55
4.3. Layout Guideline ................................................................................................................. 56
5 Antenna Interface ............................................................................................................................... 57
5.1. GSM/UMTS Antenna Interface ............................................................................................ 57
5.1.1. Pin Definition .............................................................................................................. 57
5.1.2. Operating Frequency .................................................................................................. 57
5.1.3. Reference Design....................................................................................................... 58
5.2. GNSS Antenna Interface ..................................................................................................... 59
5.2.1. Reference Design for Passive Antenna ...................................................................... 59
5.2.2. Reference Design for Active Antenna ......................................................................... 60
5.3. Antenna Installation ............................................................................................................. 60
5.3.1. Antenna Requirement ................................................................................................ 60
5.3.2. Install the Antenna with RF Connector ........................................................................ 61
6 Electrical, Reliability and Radio Characteristics ............................................................................ 63
6.1. Absolute Maximum Ratings ................................................................................................. 63
6.2. Power Supply Ratings ......................................................................................................... 63
6.3. Operating Temperature ........................................................................................................ 64
6.4. Current Consumption .......................................................................................................... 64
6.5. RF Output Power ................................................................................................................. 68
6.6. RF Receiving Sensitivity ...................................................................................................... 69
6.7. Electrostatic Discharge ........................................................................................................ 69
7 Mechanical Dimensions .................................................................................................................... 70
7.1. Mechanical Dimensions of the Module................................................................................. 70
7.2. Footprint of Recommendation.............................................................................................. 73
7.3. Top View of the Module ....................................................................................................... 74
7.4. Bottom View of the Module .................................................................................................. 74
8 Storage and Manufacturing .............................................................................................................. 75
8.1. Storage ................................................................................................................................ 75
8.2. Manufacturing and Welding ................................................................................................. 75
8.3. Packaging ........................................................................................................................... 76