HumPRO
TM
Series 900MHz
RF Transceiver Module
Data Guide
Warning:
Some customers may want Linx radio frequency (“RF”)
products to control machinery or devices remotely, including machinery
or devices that can cause death, bodily injuries, and/or property
damage if improperly or inadvertently triggered, particularly in industrial
settings or other applications implicating life-safety concerns (“Life and
Property Safety Situations”).
NO OEM LINX REMOTE CONTROL OR FUNCTION MODULE
SHOULD EVER BE USED IN LIFE AND PROPERTY SAFETY
SITUATIONS.
No OEM Linx Remote Control or Function Module
should be modified for Life and Property Safety Situations. Such
modification cannot provide sufficient safety and will void the product’s
regulatory certification and warranty.
Customers may use our (non-Function) Modules, Antenna and
Connectors as part of other systems in Life Safety Situations, but
only with necessary and industry appropriate redundancies and
in compliance with applicable safety standards, including without
limitation, ANSI and NFPA standards. It is solely the responsibility of any
Linx customer who uses one or more of these products to incorporate
appropriate redundancies and safety standards for the Life and
Property Safety Situation application.
Do not use this or any Linx product to trigger an action directly
from the data line or RSSI lines without a protocol or encoder/
decoder to validate the data.
Without validation, any signal from
another unrelated transmitter in the environment received by the module
could inadvertently trigger the action.
All RF products are susceptible to RF interference that can prevent
communication.
RF products without frequency agility or hopping
implemented are more subject to interference. This module does have
a frequency hopping protocol built in, but the developer should still be
aware of the risk of interference.
Do not use any Linx product over the limits in this data guide.
Excessive voltage or extended operation at the maximum voltage could
cause product failure. Exceeding the reflow temperature profile could
cause product failure which is not immediately evident.
Do not make any physical or electrical modifications to any Linx
product.
This will void the warranty and regulatory and UL certifications
and may cause product failure which is not immediately evident.
!
Table of Contents
1
Description
1
Features
2
Ordering Information
2
Absolute Maximum Ratings
3
Electrical Specifications
5
Typical Performance Graphs
10
Pin Assignments
10
Pin Descriptions
12
Pre-Certified Module Pin Assignments
13
Module Dimensions
14
Theory of Operation
15
Module Description
16
Overview
18
Addressing Modes
20
Automatic Addressing
20
Address Register Use
21
Acknowledgements and Assured Delivery
22
Frequency Hopping Spread Spectrum
23
Compatibility with the 250 Series
23
Networking
24
Transmitting Packets
25
Receiving Packets
29
Using the Buffer Empty (BE) Line
30
Exception Engine
32
Carrier Sense Multiple Access (CSMA)
33
Using the Command Response (CRESP) Line
34
Using the CMD Line
34
External Amplifier Control
35
AES Encryption
38
Using the MODE_IND Line
39
Using the PB Line
40
Restore Factory Defaults
40
Using the Low Power Features
42
The Command Data Interface
43
Reading from Registers
44
Writing to Registers
45
Command Length Optimization
45
Example Code for Encoding Read/Write Commands
48
The Command Data Interface Command Set
95
Typical Applications
96
Usage Guidelines for FCC Compliance
96
Additional Testing Requirements
97
Information to the user
98
Product Labeling
98
FCC RF Exposure Statement
98
Antenna Selection
100
Castellation Version Reference Design
102
Power Supply Requirements
102
Antenna Considerations
103
Interference Considerations
104
Pad Layout
105
Microstrip Details
106
Board Layout Guidelines
107
Helpful Application Notes from Linx
108
Production Guidelines
108
Hand Assembly
108
Automated Assembly
110
General Antenna Rules
112
Common Antenna Styles
114
Regulatory Considerations
HumPRO
TM
Series 900MHz
RF Transceiver Module
Data Guide
Description
The HumPRO
TM
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)
0.55"
(13.97)
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
•
•
•
•
•
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
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Revised 2/9/2018
Ordering Information
Ordering Information
Part Number
HUM-900-PRO
HUM-900-PRO-CAS
HUM-900-PRO-UFL
EVM-900-PRO
EVM-900-PRO-CAS
EVM-900-PRO-UFL
MDEV-900-PRO
Figure 2: Ordering Information
Description
HumPRO™ Series Data Transceiver
HumPRO™ Series Data Transceiver with Castellation Connection
HumPRO™ Series Data Transceiver with u.FL Connector
HumPRO™ Series Carrier Board
HumPRO™ Series Carrier Board with Certified module,
Castellation Connection
HumPRO™ Series Carrier Board with Certified module, UFL
Connector
HumPRO™ Series Master Development System
Electrical Specifications
HumPRO
TM
Series Transceiver Specifications
Parameter
Power Supply
Operating Voltage
TX Supply Current
900MHz at +10dBm
900MHz at 0dBm
RX Supply Current
Power-Down Current
RF Section
Operating Frequency Band
Number of hop channels
@ 19.2kbps RF Rate
@ 152.34kbps RF Rate
Channel spacing
@ 19.2kbps RF Rate
@ 152.34kbps RF Rate
20 dB OBW
−0.3
−0.3
−40
−40
to
to
0
to
to
+85
+85
+3.9
V
CC
+ 0.3
VDC
VDC
dBm
ºC
ºC
@ 19.2kbps RF Rate
@ 152.34kbps RF Rate
Receiver BW
@ 19.2kbps RF Rate
@ 152.34kbps RF Rate
FSK deviation
@ 19.2kbps RF Rate
@ 152.34kbps RF Rate
Scan time / channel (avg)
@ 19.2kbps RF Rate
@ 152.34kbps RF Rate
FHSS Lock time
@ 19.2kbps RF Rate
@ 152.34kbps RF Rate
Modulation
Data Encoding
Number of Hop Sequences
± 19.2
± 51
1.2
0.335
63
26
2FSK
6/7 RLL
6
kHz
kHz
ms
ms
ms
ms
102
232
kHz
kHz
64
315
kHz
kHz
50/64
26/32
375.9
751.81
kHz
kHz
F
C
902
928
MHz
l
CCRX
l
PDN
V
CC
l
CCTX
40.5
22
23.5
0.7
41.5
24
24.5
1.4
mA
mA
mA
µA
1,2
1,2
1,2,3
1,2
2.0
3.6
VDC
Symbol
Min.
Typ.
Max.
Units
Notes
Absolute Maximum Ratings
Absolute Maximum Ratings
Supply Voltage V
cc
Any Input or Output Pin
RF Input
Operating Temperature
Storage Temperature
Exceeding any of the limits of this section may lead to permanent damage to the device.
Furthermore, extended operation at these maximum ratings may reduce the life of this
device.
Figure 3: Absolute Maximum Ratings
Warning:
This product incorporates numerous static-sensitive
components. Always wear an ESD wrist strap and observe proper ESD
handling procedures when working with this device. Failure to observe
this precaution may result in module damage or failure.
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HumPRO
TM
Series Transceiver Specifications
Parameter
Receiver Section
Spurious Emissions
IF Frequency
Receiver Sensitivity
@min rate
@max rate
RSSI Dynamic Range
CSMA RSSI Threshold
Transmitter Section
Max Output Power
Harmonic Emissions
Output Power Range
Antenna Port
RF Impedance
Environmental
Operating Temp. Range
Timing
Module Turn-On Time
Via V
CC
Via POWER_DOWN
Via Standby
Serial Command Response
Volatile R/W
NV Update
Factory Reset
Channel Dwell Time
CMD low to trigger TX with
option TXnCMD
Interface Section
UART Data rate
Input
Logic Low
Logic High
V
IL
V
IH
0.7*V
CC
0.3*V
CC
VDC
VDC
9,600
115,200
bps
t
TXnCMD
2
204
0.4
2.4
5
31.5
329
400
ms
ms
ms
ms
ms
13
8
8
TX Output Power (dBm)
HumPRO
TM
Series Transceiver Specifications
Typ.
Max.
–47
304.7
Units
dBm
kHz
5
dBm
dBm
dB
dBm
dBm
dBc
9
50
dB
Ω
+85
ºC
6
6
6
4
4
5
5
Notes
Parameter
Output
Logic Low, MODE_IND,
BE
Logic High, MODE_IND,
BE
Logic Low
Logic High
CRESP Hold Time
Flash (Non-Volatile) Memory Specifications
Flash Write Cycles
22,000
cycles
12
V
OLM
V
OHM
V
OL
V
OH
0.7*V
CC
10
Bits
0.7*V
CC
0.3*V
CC
0.3*V
CC
VDC
VDC
1,9
1,9
1,10
1,10
11
Symbol
Min.
Typ.
Max.
Units
Notes
Symbol
Min.
–98
–91
–101
–94
85
–70
P
O
P
H
P
H
R
IN
+8.5
–5
+9.5
–41
1.
2.
3.
4.
5.
6.
7.
8.
−40
Measured at 3.3V V
CC
Measured at 25ºC
Input power < -60dBm
Characterized but not tested
PER = 1%
Into a 50-ohm load
No RF interference
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
13. With CSMA disabled
14. Start of factory reset command to end
of last ACK response
Figure 4: Electrical Specifications
63
4
4
173
ms
ms
ms
4
4
4
Typical Performance Graphs
11.0
10.5
-40°C
10.0
25°C
9.5
9.0
85°C
8.5
2.0
2.5
Supply Voltage (V)
3.3
3.6
14
Figure 5: HumPRO
TM
Series Transceiver Max Output Power vs. Supply Voltage - HUM-900-PRO
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