CC2500RGPR Datasheet, PDF (75/99 Pages) Texas Instruments – Low-Cost Low-Power 2.4 GHz RF Transceiver

CC2500
Bit Field Name
7:6 MAX_DVGA_GAIN[1:0]
5:3 MAX_LNA_GAIN[2:0]
2:0 MAGN_TARGET[2:0]
0x1B: AGCCTRL2 – AGC Control
Reset
R/W Description
0 (00)
0 (000)
3 (011)
R/W Reduces the maximum allowable DVGA gain.
Setting Allowable DVGA settings
0 (00) All gain settings can be used
1 (01)
2 (10)
The highest gain setting can not be used
The 2 highest gain settings can not be used
3 (11) The 3 highest gain settings can not be used
R/W Sets the maximum allowable LNA + LNA 2 gain relative to the
maximum possible gain.
Setting Maximum allowable LNA + LNA 2 gain
0 (000)
1 (001)
2 (010)
Maximum possible LNA + LNA 2 gain
Approx. 2.6 dB below maximum possible gain
Approx. 6.1 dB below maximum possible gain
3 (011) Approx. 7.4 dB below maximum possible gain
4 (100) Approx. 9.2 dB below maximum possible gain
5 (101) Approx. 11.5 dB below maximum possible gain
6 (110) Approx. 14.6 dB below maximum possible gain
7 (111) Approx. 17.1 dB below maximum possible gain
R/W These bits set the target value for the averaged amplitude from
the digital channel filter (1 LSB = 0 dB).
Setting
Target amplitude from channel filter
0 (000)
24 dB
1 (001)
27 dB
2 (010)
30 dB
3 (011)
33 dB
4 (100)
5 (101)
6 (110)
36 dB
38 dB
40 dB
7 (111)
42 dB
SWRS040C
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