User's Manual

HE920 Hardware User Guide
1vv0301014 Rev.9 – 2014-01-23
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights
Reserved. Page 84 of 84
18. Document History
Revision
Date
Changes
0
2012-02-02
First issue
1
2012-06-04
Renumbered chapters
Updated 2.3 Weight
Updated 3 HE920 Module Connections
Updated 5.1 Power Supply Requirements
Updated 6.5 GPS/GNSS Antenna Requirements
Updated 9.2 Modem Serial Port 2
Updated 13.2 ADC Converter
Updated 14.2 Module Finishing & Dimensions
2
2012-10-24
Updated 4 Hardware Commands
Added 4.5 Hardware Unconditional Shutdown (Power Off)
Updated 5.1 Power Supply Requirements
Updated 5.2.2 Thermal Design Guidelines
Updated 6.1 GSM/WCDMA Antenna Requirements
Updated 7.1 Reset Signal
Updated 8 USB Port
Updated 13.2 Module Finishing & Dimensions
Updated 14.2 Bypass capacitor on Power supplies
Updated 14.4 EMC recommendations
Updated 15.2 Moisture Sensibility
3
2012-11-14
Updated 5.1 Power Supply Requirements
Updated 6.1 GSM/WCDMA Antenna Requirements
4
2013-01-02
Updated 5.1 Power Supply Requirements
Updated 6 Antenna(s)
5
2013-03-21
Updated 6.1 GSM/WCDMA Antenna Requirements
Added 16.1 1999/5/EC Directive
Added 16.2 FCC/IC Regulatory notices
6
2013-05-14
Updated 1.6 Related Documents
Updated 10.1 Analog Audio
Updated 13.4 Stencil
Updated 13.5 PCB Pad Design
Updated 13.6 Recommendations for PCB Pad Dimensions (mm)
Updated 13.7.1 Solder Reflow
Updated 15.1 Tray Drawing
7
2013-11-08
Updated 6.5.3 LNA and Front End Design Considerations
Updated 13.2 Module Finishing & Dimensions
Updated 14.3 SIM Interface
8
2013-11-13
Updated 13.3 Recommended foot print for the application
9
2014-01-23
Updated 2.4.2 RoHS compliance
Updated 6.1 GSM/WCDMA Antenna Requirements
Updated 8 USB Port
Updated 12.1 DAC Converter
Updated 16.2 FCC/IC Regulatory notices