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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4 5
HumPRO
TM
Series Transceiver Specifications
Parameter Symbol Min. Typ. Max. Units Notes
Input
Logic Low V
IL
0.3*V
CC
VDC
Logic High V
IH
0.7*V
CC
VDC
Output
Logic Low, MODE_IND,
BE
V
OLM
0.3*V
CC
VDC 1,9
Logic High, MODE_IND,
BE
V
OHM
0.7*V
CC
VDC 1,9
Logic Low V
OL
0.3*V
CC
1,10
Logic High V
OH
0.7*V
CC
1,10
CRESP Hold Time 10 Bits 11
Flash (Non-Volatile) Memory Specifications
Flash Write Cycles
22,000
cycles
12
HumPRO
TM
Series Transceiver Specifications
Parameter Symbol Min. Typ. Max. Units Notes
Receiver Section
Spurious Emissions –47 dBm
IF Frequency 304.7 kHz
Receiver Sensitivity 5
HUM-900-PRO-xxx @
min rate
–98 –101 dBm 5
HUM-900-PRO-xxx @
max rate
–91 –94 dBm 5
RSSI Dynamic Range 85 dB
CSMA RSSI Threshold –70 dBm
Transmitter Section
Output Power P
O
HUM-900-PRO-xxx +8.5 +9.5 dBm 6
Harmonic Emissions P
H
–41 dBc 6
Output Power Range
HUM-900-PRO-xxx P
H
–5 9 dB 6
Antenna Port
RF Impedance R
IN
50 Ω 4
Environmental
Operating Temp. Range −40 +85 ºC 4
Timing
Module Turn-On Time
Via V
CC
51.7 129.5 ms 4
Via POWER_DOWN 4 ms 4
Via Standby 4 ms 4
Serial Command Response
Volatile R/W 0.4 5 ms 8
NV Update 2.2 31.5 ms 8
Factory Reset 107 ms 8
Channel Dwell Time 400 ms
CMD low to trigger TX with
option TXnCMD
t
TXnCMD
2 ms
Interface Section
UART Data rate 9,600 115,200 bps
1. Measured at 3.3V V
CC
2. Measured at 25ºC
3. Input power < -60dBm
4. Characterized but not tested
5. PER = 5%
6. Into a 50-ohm load
7. No RF interference
8. From end of command to start of
response
9. 60mA source/sink
10. 6mA source/sink
11. End of CMD_DATA_OUT stop bit to
change in CRESP
12. Number of register write operations
Figure 4: Electrical Specifications
Typical Performance Graphs
Figure 5: HumPRO
TM
Series Transceiver Max Output Power vs. Supply Voltage - HUM-900-PRO
8.5
9.0
9.5
10.0
10.5
11.0
2.0 2.5 3.3 3.6
TX Output Power (dBm)
Supply Voltage (V)
85°C
25°C
-40°C