User's Manual
1
®
DM1800-
916MB
Rating Value Units
All Input/Output Pins Except VIN -0.3 to +3.3 V
Non-Operating Ambient Temperature Range -50 to +100
o
C
Absolute Maximum Ratings
Preliminary
Electrical Characteristics
Characteristic Sym Notes Minimum Typical Maximum Units
Operating Frequency f
O
916.30 916.70 MHz
Modulation Type OOK
RF Encoded Data Transmission Rate 4.8 kb/s
Average Receiver Input Current, No External Power Supply Load I
R
4mA
Receiver Input Signal for 10
-3
BER, 25 °C
-98 dBm
Peak Transmitter Input Current, No External Power Supply Load I
TP
13.5 mA
Peak Transmitter Output Power P
O
1mW
Analog Input Measurement Range (10-bit ADC) 0 VOUT V
Source Impedance to Analog Input 10 K
Digital In Logic High 2.4 V
Digital In Logic Low .45 V
Digital Out Logic High, No Load 2.4 V
Digital In Logic Low, No Load 0.3 V
Digital Output Source Current, 1K load 1.1 mA
Digital Output Sink Current, 1K load 1.2 mA
Serial Port Data Rate 9.6 kb/s
Power Supply Input Voltage Range, -40 to +85
o
C VIN 2.6 14 V
Power Supply Input Voltage Range, 0 to +85
o
C VIN 3.1 14 V
Regulated Power Supply Output Voltage, VIN 3.1 to 14 V VOUT 3.0 Vdc
Regulated Power Supply Voltage Ripple 10 mV
P-P
916.50 MHz
Transceiver
Module
The DM1800-916MB is the 916.50 MHz base station module in the DM1800 family of RF transceiv
-
ers. The DM1800 family is designed for adding embedded wireless connectivity to a wide range of
monitoring and control systems. The DM1800-916MB is equipped with a serial I/O port to interface
to a host microcontroller. The module also includes an analog input, a logic input, and a logic output
for local monitoring and control. Radio communications range in an “open field” environment is typi
-
cally 200 meters/hop. The DM1800-916MB combines RFM’s very low current ASH radio technol
-
ogy with low power microcontroller technology to achieve long battery life. This module is
compatible with RFM’s miniMESH
TM
network protocol, which provides add-on “plug-and-play”
multicast mesh network routing. The DM1800-916MB is certified for operation under FCC 15.249
regulations.
•
Base Station with Host Serial Interface
•
Compatible with RFM miniMESH
TM
Network Protocol
•
3 V, Very Low Current Operation
•
Ready-to-Use OEM Module