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LLCC68 Datasheet(PDF) 102 Page - Semtech Corporation

Part # LLCC68
Description  Long Range, Low Power, sub-GHz RF Transceiver
PDF  111 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

LLCC68 Datasheet(HTML) 102 Page - Semtech Corporation

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LLCC68
Data Sheet
Rev. 1.1
DS.LLCC68.W.APP
Dec 2024
102 of 111
Semtech
LLCC68
www.semtech.com
15. Known Limitations
This section summarizes the known limitations of the LLCC68 chips, and the related workarounds.
15.1 Modulation Quality with 500kHz LoRa Bandwidth
15.1.1 Description
Some sensitivity degradation may be observed on any LoRa device, when receiving signals transmitted by the LLCC68 with a LoRa BW of
500kHz.
15.1.2 Workaround
Before any packet transmission, bit #2 at address 0x0889 shall be set to:
• 0 if the LoRa BW = 500kHz
• 1 for any other LoRa BW
• 1 for any (G)FSK configuration
The following pseudo-code can be used
before each packet transmission, to properly configure the chip:



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