LLCC68 datasheet(40/111 Pages) SEMTECH

40 / 111 page

LLCC68

Data Sheet

Rev. 1.1

DS.LLCC68.W.APP

Dec 2024

40 of 111

Semtech

LLCC68

www.semtech.com

The bandwidth must be chosen so that

Bandwidth[DSB] ≥ BR + 2*frequency deviation + frequency error

where the frequency error is two times the crystal frequency error used.

The LLCC68 offers several pulse shaping options defined by the parameter PulseShape. If other unspecified values are given as parameters,

then no filtering is used.

BW46

0x14

46.9

BW58

0x0C

58.6

BW78

0x1B

78.2

BW93

0x13

93.8

BW117

0x0B

117.3

BW156

0x1A

156.2

BW187

0x12

187.2

BW234

0x0A

234.3

BW312

0x19

312.0

BW373

0x11

373.6

BW467

0x09

467.0

BW1000

0x08

1000.01

1. BW1000 requires additional settings, as follows:

read register value at address 0x0805, and or the value with 0x7 before re-writing it at address 0x0805

read register value at address 0x0806 and or the value with 0x32 before re-writing it at address 0x0806

write value 0x01 at register address 0x0818

write value 0xFA at register address 0x088F

write value 0xAA at register address 0x0890

write value 0xAC at register address 0x0891

Table 6-5: Bandwidth Definition in FSK Packet Type (Sheet 2 of 2)

Value

Bandwidth [kHz DSB]

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