User's Guide
Table Of Contents
- Description
- Features
- Ordering Information
- Absolute Maximum Ratings
- Electrical Specifications
- Typical Performance Graphs
- Pin Assignments
- Pin Descriptions
- Pre-Certified Module Pin Assignments
- Module Dimensions
- Theory of Operation
- Module Description
- Overview
- Addressing Modes
- Automatic Addressing
- Address Register Use
- Acknowledgements and Assured Delivery
- Frequency Hopping Spread Spectrum
- Compatibility with the 250 Series
- Networking
- Transmitting Packets
- Receiving Packets
- Using the Buffer Empty (BE) Line
- Exception Engine
- Carrier Sense Multiple Access (CSMA)
- Using the Command Response (CRESP) Line
- Using the CMD Line
- External Amplifier Control
- AES Encryption
- 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
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– –
8 9
22.5
22.7
22.9
23.1
23.3
23.5
23.7
23.9
24.1
24.3
24.5
2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6
Supply Current (mA)
Supply Voltage (V)
85°C
25°C
-40°C
Figure 10: HumPRO
TM
Series Transceiver RX Scan Current vs. Supply Voltage, 9.6kbps - HUM-900-PRO
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
2.5 3.3 3.6
Standby Current (µA)
Supply Voltage (V)
-40°C
25°C
85°C
Figure 12: HumPRO
TM
Series Transceiver Standby Current Consumption vs. Supply Voltage - HUM-900-PRO
-105.00
-95.00
-85.00
-75.00
-65.00
-55.00
-45.00
-35.00
-25.00
-15.00
-100.00 -90.00 -80.00 -70.00 -60.00 -50.00 -40.00 -30.00 -20.00 -10.00
0.00
RSSI Reading (dBm)
Input Power (dBm)
-40°C
25°C
85°C
Figure 13: HumPRO
TM
Series Transceiver RSSI Voltage vs. Input Power - HUM-900-PRO
21
21.2
21.4
21.6
21.8
22
22.2
22.4
22.6
22.8
23
2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6
Supply Current (mA)
Supply Voltage (V)
85°C
25°C
-40°C
Figure 11: HumPRO
TM
Series Transceiver RX Scan Current vs. Supply Voltage, 115.2kbps - HUM-900-PRO
Current consumption while the module is scanning for a transmission. The current is
approximately 0.5mA higher when receiving data at 9.6kbps.
Current consumption while the module is scanning for a transmission. The current is
approximately 2mA higher when receiving data at 115.2kbps.