LLCC68 datasheet(37/106 Pages) SEMTECH

부품명	LLCC68

상세설명	Long Range, Low Power, sub-GHz RF Transceiver

PDF	106 Pages

Scroll/Zoom	100%

제조업체	SEMTECH [Semtech Corporation]

홈페이지	http://www.semtech.com

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37 / 106 page

LLCC68

Data Sheet

Rev. 1.0

DS.LLCC68.W.APP

July 2019

37 of 106

Semtech

www.semtech.com

On the LLCC68, the channel activity detection mode is designed to detect the presence of a LoRa® preamble or data

symbols while the previous generations of products were only able to detect LoRa® preamble symbols.

Once in CAD mode, the LLCC68 will perform a scan of the band for a user-selectable duration (defined in number of

symbols) and will then return with the Channel Activity Detected IRQ if LoRa® symbols have been detected during the CAD.

The time taken for the channel activity detection is dependent upon the LoRa® modulation settings used. For a given

configuration (SF/BW) the typical CAD detection time can be selected to be either 1, 2, 4, 8 or 16 symbols. Once the duration

of the selected number of symbols has been done, the radio will remains for around half a symbol in Rx to post-process the

measurement.

LLCC68 데이터시트(PDF) 37 Page - Semtech Corporation