Telit Wireless Solutions ME910G1-WW - GNSS Characteristics

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ME910G1 HW Design Guide

1VV0301593 Rev.3 Page 71 of 97 2020-03-24

Be aware of max bias current in case of unwanted short on antenna cable, decoupling

inductor may be demaged.

In case of LNA with 1.8V supply, VAUX/POWERMON pin can be used to supply active

GNSS antenna

GNSS Characteristics

This information will be available in a next document revision.

Main Page

Notice2
- Copyrighted Materials3
- High Risk Materials3
- License Agreements3
- Trademarks3
  - Third Party Rights3
Copyrights2
Computer Software Copyrights2
Usage and Disclosure Restrictions3
Applicability Table4
Contents5
- Table of Contents5
1 Introduction9
- Scope9
- Audience9
- Contact Information, Support9
- Text Conventions10
- Related Documents10
2 General Product Description11
- Overview11
- Product Variants and Frequency Bands11
- Target Market12
- Main Features12
- TX Output Power12
- Me910G1-W112
- Me910G1-Ww13
  - RX Sensitivity13
- Me910G1-W113
  - Mechanical Specifications16
- Dimensions16
- Weight16
  - Temperature Range16
3 Pins Allocation17
- Pin-Out17
- LGA Pads Layout27
4 Power Supply28
- Power Supply Requirements28
- Power Consumption30
- General Design Rules31
- Electrical Design Guidelines of the Power Supply31
- Source Power Supply Design Guidelines31
- Source Power Supply Design Guidelines32
- Battery Source Power Supply Design Guidelines33
- Thermal Design Guidelines34
- Power Supply PCB Layout Guidelines34
  - VAUX Power Output37
  - RTC Supply37
5 Digital Section38
- Logic Levels38
- Power on39
- Power off43
- Wake from Deep Sleep Mode45
- Unconditional Shutdown45
- Fast Power down48
- Fast Shut down by Hardware49
- Fast Shut down by Software49
  - Communication Ports50
- Usb 2.0 Hs50
- Spi51
- Serial Ports52
- Modem Serial Port 152
- Modem Serial Port 254
- RS232 Level Translation55
  - General Purpose I/O56
- Using a GPIO as INPUT57
- Using a GPIO as OUTPUT58
- Indication of Network Service Availability58
  - External SIM Holder59
  - ADC Converter59
6 Rf Section61
- Bands Variants61
- TX Output Power61
- RX Sensitivity61
- Antenna Requirements61
- PCB Design Guidelines62
- PCB Guidelines in Case of FCC Certification63
- Transmission Line Design64
- Transmission Line Measurements65
- Antenna Installation Guidelines67
7 Audio Section68
- Electrical Characteristics68
- Codec Examples68
8 Gnss Section69
- GNSS Signals Pin-Out69
- RF Front End Design69
- Guidelines of PCB Line for GNSS Antenna69
  - GNSS Antenna Requirements70
- GNSS Antenna Specification70
- GNSS Antenna - Installation Guidelines70
- Powering the External LNA (Active Antenna)70
  - GNSS Characteristics71
9 Mechanical Design72
- Drawing72
10 Application Pcb Design73
- Recommended Footprint for the Application73
- PCB Pad Design75
- Recommendations for PCB Pad Dimensions76
- Thermal Performance77
- Stencil77
- Solder Paste78
- Solder Reflow78
- Inspection80
11 Packaging81
- Tray81
- Reel83
- Carrier Tape Detail83
- Reel Detail84
- Packaging Detail85
- Moisture Sensitivity85
12 Conformity Assessment Issues86
- Approvals86
13 Safety Recommendations93
- Read Carefully93
14 Acronyms94
15 Document History96

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