SWRA591 Application note

SWRA591 April 2019 CC1310 , CC1350

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2 DSSS Encoding Scheme

The DSSS scheme is depicted in Figure 1. A convolutional encoder of rate ½ is followed by a DSSS with variable spreading length. The output of the module is fed into the 2-GFSK modulator to produce the modulated GFSK signal.

Figure 1. WB-DSSS Coding Scheme (the modulator is 2-GFSK)

The following subsections briefly discuss the workings of the first two main blocks shown in Figure 1.