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 5
http://www.aurel.it
3.
Reference Documentation
The RTX-24EM module embeds the EM Microelectronic EM9209 Radio SOC device.
For information on technical details of the Radio SOC such as register settings, timing, application interfaces
and clocking refer to the device data sheet available on the website:
http://www.emmicroelectronic.com
Here below the link of the documentation:
http://www.emmicroelectronic.com/products/wireless-rf/proprietary-protocols/em9209
4.
European Reference Standards
The module
RTX-24EM
complies with the European standards
EN 300 440
and
EN
301 489-3
with
maximum power supply of 3.6V.
The transceiver must be supplied by a very low voltage safety source protected against short circuits.
The usage of the transceiver is foreseen inside enclosures that assure the overcoming of the rule EN 61000-
4-2, not directly applicable to the module itself.
This device is compliant with EN 62479, connected to the electromagnetic field human exposition.
5.
Overview
The EM9209 is a low-power, low-voltage, single chip 2.4GHz RF transceiver ideal for battery operated
wireless applications. The EM9209 employs a FSK modulation scheme which is directly applied to the
2.4GHz transmitter. RF output power is digitally tuned over a wide range (-20dBm to +10dBm) to optimize
current consumption and transmitted power for the application. The on-air transmission rate is digitally
programmable from 1.5kbps to 72kbps.
The EM9209 features a fully integrated low-noise, high-sensitivity 2.4GHz front end with -115dBm at
1.5kbps in high sensitivity mode. The integration of an agile frequency synthesizer makes the EM9209 well
suited for frequency hopping applications.
The major blocks that build the EM9209 are:
1.
the RF transceiver;
2.
the digital interface including custom microcontroller;
3.
the power management circuitry.
An overview of each of these blocks is provided in this section.
