AN4117 Datasheet, PDF (1/22 Pages) STMicroelectronics – Using the SPIRIT1 transceiver under EN 300 220 at 434 MHz

AN4117
Application note
Using the SPIRIT1 transceiver under EN 300 220 at 434 MHz
By 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 in both licence-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 (v2.3.1, 2012-02) [2] in the 433.050 to 434.790 MHz band. There are no specific
requirements in this band, no specific use and no channel spacing are defined. Devices
supporting audio and video applications use a digital modulation method with a maximum
bandwidth of 300 kHz. Devices supporting digital voice have a maximum bandwidth not
exceeding 25 kHz. The maximum allowed output power is +10 dBm (10 mW).
For details of the regulatory limits in the 433.050 - 434.790 MHz SRD frequency bands,
please refer to the ETSI EN 300 220-1 v2.3.1 [2] and ERC recommendation 70-03 [3].
These can be downloaded from www.etsi.org and www.ero.dk respectively.
October 2012
Doc ID 023222 Rev 1
1/22
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