AN4271 Datasheet, PDF (1/20 Pages) STMicroelectronics – Using the SPIRIT1 transceiver with range extender under EN 300 220 at 868 MHz

AN4271
Application note
Using the SPIRIT1 transceiver with range extender
under EN 300 220 at 868 MHz
Placido De Vita
Introduction
The SPIRIT1 is a very low power RF transceiver, intended for RF wireless applications in
the sub-1 GHz band. It is designed to operate both in the license-free ISM and SRD
frequency bands at 169, 315, 433, 868 and 915 MHz.
This application note outlines the expected performance when using the SPIRIT1 under EN
300 220-1 (v2.4.1, 2012-01) [2 ] in the 869.400 to 869.650 MHz band. This band is not
defined for specific applications, the maximum radiated power is +27 dBm (500 mW), and
the defined channel spacing is < 25 kHz with 10% duty cycle. The whole stated frequency
band may also be used as 1 wide-band channel for high speed data transmission.
For details on the regulatory limits in the 869.400 - 869.650 MHz SRD frequency bands,
please refer to ETSI EN 300 220-1 v2.4.1 [2] and ERC Recommendation 70-03 [3]. These
can be downloaded from www.etsi.org and www.ero.dk.
October 2013
DocID024318 Rev 1
1/20
www.st.com