Download HUM-xxx-PRO Data Guide

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Using the MODE_IND Line
Using the PB Line
Restore Factory Defaults
Using the Low Power Features
The Command Data Interface
Reading from Registers
Writing to Registers
Command Length Optimization
Example Code for Encoding Read/Write Commands
The Command Data Interface Command Set
Typical Applications
Usage Guidelines for FCC Compliance
Additional Testing Requirements
Information to the user
Product Labeling
FCC RF Exposure Statement
Antenna Selection
Castellation Version Reference Design
Power Supply Requirements
Antenna Considerations
Interference Considerations
Pad Layout
Microstrip Details
Board Layout Guidelines
Helpful Application Notes from Linx
Production Guidelines
Hand Assembly
Automated Assembly
General Antenna Rules
Common Antenna Styles
Regulatory Considerations
HumPRO TM Series
RF Transceiver Module
Data Guide
Description
0.55"
(13.97)
The HumPROTM Series is a frequency hopping
spread spectrum (FHSS) transceiver designed
for the reliable transfer of digital data. It has a
very fast lock time so that it can quickly wake
up, send data and go back to sleep, saving
power in battery-powered applications. The
module is available in the 915MHz frequency
band.
0.45"
(11.43)
0.07"
(1.78)
Figure 1: Package Dimensions
The module has several features that increase the data transfer reliability. It
ensures that no other modules are transmitting before it begins transmitting
data. Automatic acknowledgements ensure that the remote side received
valid data. Multiple hopping patterns enable several systems to operate
in proximity without interference. A standard UART interface is used for
module configuration and data transfer. A few simple serial commands are
all that are needed for configuration.
All modules have a unique 32-bit serial number that can be used as an
address. Source and destination addressing support point-to-point and
broadcast links. Address masking by the receiving module allows for
creating subnets. Other network topologies can also be implemented.
Housed in a tiny compact reflow-compatible SMD package, the transceiver
requires no external RF components except an antenna, which greatly
simplifies integration and lowers assembly costs. Versions are available that
have obtained FCC and Industry Canada modular certification.
Features
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FHSS Algorithm
Fast Lock (<30ms at 115kbps)
Low power modes
FCC and IC Pre-certified version
Simple UART interface
• No external RF components
required
• No production tuning required
• Tiny PLCC-32 footprint
– 1 –
Revised 10/20/2015