User's Manual
Table Of Contents
- Contents
- 1 Overview
- 2 DC and AC Characteristics
- 3 Electrical Interface
- 4 SPI Interface and Sequences
- 5 Power States
- 6 Messaging Protocol
- 7 microNode Provisioning
- 8 Antenna Diversity
- 9 Regulatory Considerations
- 10 Manufacturing Considerations
- 11 Errata
- Appendix A Abbreviations and Terms
- Appendix B PCB Land Pattern and Vias
- Appendix C REACH AND RoHS Compliance
- Appendix D On-Ramp Wireless RMA Process
- Appendix E microNode Mechanical Drawing
microNode Integration Specification Power States
On-Ramp Wireless, Inc. 26 014-0033-00 Rev. H
Figure 15. Representative Current Consumption During Deep Sleep, Idle, RX, and TX; x16
Spreading Factor (Amps vs Seconds)
The plot shown in the figure above represents the nominal transitions for the microNode from
Deep Sleep, Idle, Receive, and Transmit states. In this case, a TX spreading factor of 16 is used. It
is important that the Host designer understand the System operating profile, operating voltages,
different operating modes of the microNode and the ultimate effect on System power
consumption. Of course, this is especially true if a battery powered device is being considered.