CC2420 Datasheet, PDF (68/92 Pages) List of Unclassifed Manufacturers – 2.4 GHz IEEE 802.15.4 / ZigBee-ready RF Transceiver

CC2420
RXCTRL1 (0x17) - Receive control register 1
Bit
15:14
13
Field Name
-
RXBPF_LOCUR
12
RXBPF_MIDCUR
11
LOW_LOWGAIN
10
MED_LOWGAIN
9
HIGH_HGM
8
MED_HGM
7:6
LNA_CAP_ARRAY[1:0]
5:4
RXMIX_TAIL[1:0]
3:2
RXMIX_VCM[1:0]
1:0
RXMIX_CURRENT[1:0]
Reset
0
0
0
1
0
1
0
1
1
1
2
R/W
W0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Reserved, write as 0.
Controls reference bias current to RX bandpass filters:
0: 4 uA (Reset value) Use 1 instead
1: 3 uA Note: Recommended setting
Controls reference bias current to RX bandpass filters:
0: 4 uA (Default)
1: 3.5 uA
LNA low gain mode setting in AGC low gain mode.
LNA low gain mode setting in AGC medium gain mode.
RX Mixers high gain mode setting in AGC high gain mode.
RX Mixers high gain mode setting in AGC medium gain mode.
Selects varactor array setting in the LNA
0: OFF
1: 0.1pF (x2) (Nominal)
2: 0.2pF (x2)
3: 0.3pF (x2)
Control of the receiver mixers output current.
0: 12 µA
1: 16 µA (Nominal)
2: 20 µA
3: 24 µA
Controls VCM level in the mixer feedback loop
0: 8 µA mixer current
1: 12 µA mixer current (Nominal)
2: 16 µA mixer current
3: 20 µA mixer current
Controls current in the mixer
0: 360 µA mixer current (x2)
1: 720 µA mixer current (x2)
2: 900 µA mixer current (x2) (Nominal)
3: 1260 µA mixer current (x2)
SWRS041B
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