CC2430 Datasheet, PDF (209/234 Pages) Texas Instruments – A True System-on-Chip solution for 2.4 GHz IEEE 802.15.4 / ZigBee-TM

CC2430
Bit Name
Reset R/W Description
7:6 -
00
5:4 RXMIXBUF_CUR[1:0]
01
3:2 HIGH_LNA_GAIN[1:0] 0
1:0 MED_LNA_GAIN[1:0]
10
R0
R/W
R/W
R/W
Reserved, read as 0.
RX mixer buffer bias current.
00 : 690 uA
01 : 980 uA (nominal)
10 : 1.16 mA
11 : 1.44 mA
Controls current in the LNA gain compensation branch in
AGC High gain mode.
00 : Compensation disabled
01 : 100 µA compensation current
10 : 300 µA compensation current (Nominal)
11 : 1000 µA compensation current
Controls current in the LNA gain compensation branch in
AGC Med gain mode.
Table 56: Register RXCTRL0H (0xDF0C)
Bit Name
Reset R/W Description
7:6 LOW_LNA_GAIN[1:0]
11
5:4 HIGH_LNA_CURRENT[1:0] 10
3:2 MED_LNA_CURRENT[1:0] 01
1:0 LOW_LNA_CURRENT[1:0] 01
R/W
R/W
R/W
R/W
Controls current in the LNA gain compensation branch in
AGC Low gain mode
Controls main current in the LNA in AGC High gain mode
00 : 240 µA LNA current (x2)
01 : 480 µA LNA current (x2)
10 : 640 µA LNA current (x2)
11 : 1280 µA LNA current (x2)
Controls main current in the LNA in AGC Med gain mode
Controls main current in the LNA in AGC Low gain mode
Table 57: Register RXCTRL0L (0xDF0D)
Bit Name
7:6 -
5 RXBPF_LOCUR
4 RXBPF_MIDCUR
3 LOW_LOWGAIN
2 MED_LOWGAIN
1 HIGH_HGM
0 MED_HGM
Reset R/W Description
0
R0
Reserved, read as 0.
1
R/W Controls reference bias current to RX band-pass filters:
0 : 4 uA
1 : 3 uA (Default)
0
R/W Controls reference bias current to RX band-pass filters:
0 : 4 uA (Default)
1 : 3.5 uA
1
R/W LNA low gain mode setting in AGC low gain mode.
0
R/W LNA low gain mode setting in AGC medium gain mode.
1
R/W RX Mixers high gain mode setting in AGC high gain mode.
0
R/W RX Mixers high gain mode setting in AGC medium gain
mode.
Table 58: Register RXCTRL1H (0xDF0E)
CC2430 PRELIMINARY Data Sheet (rev. 1.03) SWRS036A
Page 209 of 232