RTX-24EM
User guide
The technical characteristics can change without notice. AUR°EL S.p.A doesn’t assume the responsibility to the damages caused by an improper use of the device.
AUR°EL S.p.A.
Via Foro dei Tigli, 4 - 47015 Modigliana (FC) – ITALY 12/11/2019 - Rev. B
Tel.: +390546941124 – Fax: +390546941660 Page 3
http://www.aurel.it
1.
General description
The RTX-24EM is a 1.5kbps to 72kbps low-power, low-voltage 2.4GHz ISM band RF transceiver module ideal
for battery operated wireless applications such as wireless sensors and control.
The RTX-24EM module embeds the EM Microelectronic EM9209 Radio SOC device.
The EM9209’s built in custom low power microcontroller supports the proprietary wireless protocol links in
the license free 2.4000GHz to 2.4835GHz ISM band. It includes a low-IF receiver architecture and uses FSK
modulation. A SPI interface provides a simple control of the baseband using an external host
microcontroller.
The EM9209 provides two communication modes with normal sensitivity (NS) or high sensitivity (HS) and
programmable bit rate from 1.5kbps to 72kbps.
The RTX-24EM module is pin to pin compatible with Aurel previous models XTR CYP 2.4 GHz, XTR VF 2.4 LP,
XTR VF 2.4PA-LNA and XTR VF 2.4 HP.
The RTX-24EM module is available in the following variants:
Aurel Code
Technical name reference
Description
650201476G
AUREL RTX-24EM-AI/V
Integrated PIFA antenna, vertical mounting
650201495G
AUREL RTX-24EM-AE/V
UFL connector for external antenna, vertical mounting
650201496G
AUREL RTX-24EM-AI/H
Integrated PIFA antenna, horizontal mounting
650201497G
AUREL RTX-24EM-AE/H
UFL connector for external antenna, horizontal mounting
1.1 Features
•
Low voltage: 1,9 to 3,6 V
•
Low power:
7mA in RX normal sensitivity mode (NS), 8mA in RX high sensitivity mode (HS).
•
TX mode:
11mA at -1dBm, 36mA at +10dBm.
•
< 1µA in power down mode.
•
High performance:
-115dBm sensitivity at 1.5kbps,
Programmable output power from -20dBm to +10dBm
•
Operating temperatures: -20°C to +70°C
•
Flexible interface:
SPI interface for microcontrollers
Fully programmable link layer
