CC2510FX Datasheet, PDF (216/244 Pages) List of Unclassifed Manufacturers – True System-on-Chip with Low Power RF Transceiver and 8051 MCU

C2510Fx / CC2511Fx
0xDF0C: MDMCFG4 – Modem configuration
Bit Field Name
Reset R/W Description
7:6 CHANBW_E[1:0] 10
5:4 CHANBW_M[1:0] 00
3:0 DRATE_E[3:0]
1100
R/W
R/W
R/W
Sets the decimation ratio for the delta-sigma ADC input stream and thus the
channel bandwidth.
BW_channel
=
f _ref
8 ⋅ (4 + CHANBW _ M )·2^{CHANBW _ E}
The default values give 203 kHz channel filter bandwidth when f_Ref = 26 MHz
and 188 kHz when f_Ref = 24 MHz.
The exponent of the user specified symbol rate.
0xDF0D: MDMCFG3 – Modem Configuration
Bit Field Name
Reset R/W Description
7:0 DRATE_M[7:0]
0x22
R/W The mantissa of the user specified symbol rate. The symbol rate is configured
using an unsigned, floating-point number with 9-bit mantissa and 4-bit
exponent. The 9^th bit is a hidden ‘1’. The resulting data rate is:
( ) _{RDATA =}
256 + DRATE _ M
2 ²⁸
⋅ 2^{DRATE _ E} _{⋅ fref}
The default values give a data rate of 115.051 kBaud when f_Ref = 26 MHz and
106.201 kHz when f_Ref = 24 MHz.
SWRS055D
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