DNT2400DK RFM, DNT2400DK Datasheet - Page 3

• Manufacturer Part Number: DNT2400DK
• Description: DEVELOPMENT KIT FOR DNT2400 MOD
• Manufacturer: RFM
• Type: Transceiverr

Specifications of DNT2400DK

• Frequency: 2.4GHz
• Product: RF Development Tools
• Maximum Frequency: 2.4 GHz
• Supply Voltage (max): 3.3 V
• Supply Voltage (min): 0 V
• For Use With/related Products: DNT2400
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 583-1150

DNT2400 Hardware
The major components of the DNT2400 include a 2.4 GHz
FHSS transceiver and a low current 32-bit microcontroller.
The DNT2400 operates in the 2.4 GHz ISM band. The
module includes nine frequency subbands and 37 total fre-
quency channels to support the various 2.4 GHz frequency
allocations used throughout the world. The DNT2400 has
three selectable RF output power levels: 1, 10, and 63
mW. Also, there are four selectable RF transmission rates:
38.4, 115.2, 200 and 500 kb/s.
The DNT2400 includes a low-noise receiver preamplifier
and a high efficiency transmitter amplifier, providing excel-
lent range in outdoor applications.
The DNT2400 provides a variety of hardware interfaces.
There are two UART serial ports, one for data and a sec-
ond for diagnostics. The data port supports standard baud
rates from 1.2 to 460.8 kb/s, with the diagnostic port fixed
at 38.4 kb/s. The module also includes three 10-bit ADC
inputs, two 8-bit PWM outputs, and six general-purpose
digital I/O ports. Four of the digital I/O ports support an op-
tional interrupt-from-sleep mode when configured as in-
puts. The radio is available in two mounting configurations.
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©2009 by RF Monolithics, Inc.
Figure 1
The DNT2400C is designed for solder reflow mounting,
and the DNT2400P is designed for plug-in connector
mounting.
DNT2400 Firmware
The DNT2400 firmware can operate using either TDMA or
CSMA channel access modes. TDMA supports up to 16
remotes with rapid, deterministic channel latency. CSMA
provides carrier-sense managed channel access for an
unlimited number of low-traffic remotes. DNT2400 firm-
ware will operate “out of the box” using its point-to-point
transparent serial mode, with point-to-multipoint supported
by the firmware’s protocol mode. DNT2400 firmware pro-
vides the user with a rich set of configuration options in-
cluding a choice of hopping patterns, hopping dwell times,
RF data transmission rates, serial port data rates and RF
power levels, plus configurable analog and digital I/O lines.
Data integrity is protected by 24-bit error detection, with
optional ACK and automatic transmission retries or redun-
dant transmissions. 128-bit AES encryption provides a
high level of data security for sensitive applications. Sen-
sor networks can take advantage of timer or event-based
data reporting and remote node sleep cycling for extended
battery life.
DNT2400 - 08/12/09
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