MRF49XAT-I-ST Datasheet, PDF (87/102 Pages) Microchip Technology – ISM Band Sub-GHz RF Transceiver

MRF49XA
Table 5-9 shows the optimal receiver BBBW and
transmitter deviation frequency (ΔfFSK) settings for
different data rates, considering no TX/RX offset
frequency. If the TX/RX offset (for example, due to
crystal tolerances) has to be taken into account,
increase the BW accordingly.
TABLE 5-9: RX BW AND TX DEVIATION FREQUENCY FOR DIFFERENT BAUD RATES
Baud
Rate
1.2 kbps
2.4 kbps
4.8 kbps
9.6 kbps 19.2 kbps 38.4 kbps 57.6 kbps 115.2 kbps
BW
in kHz
ΔTX
in kHz
BW – 67
ΔfFSK – 45
BW – 67
ΔfFSK – 45
BW – 67
ΔfFSK – 45
BW – 67
ΔfFSK – 45
BW – 67
ΔfFSK – 45
BW – 134
ΔfFSK – 90
BW – 134 BW – 200
ΔfFSK – 90 ΔfFSK – 120
© 2009-2011 Microchip Technology Inc.
Preliminary
DS70590C-page 87