CC2420-RTR1 datasheet(68/92 Pages) TI

68 / 92 page

CC2420

SWRS041B

Page 68 of 89

RXCTRL1 (0x17) - Receive control register 1

Bit

Field Name

Reset

R/W

Description

15:14

Reserved, write as 0.

RXBPF_LOCUR

R/W

Controls reference bias current to RX bandpass filters:

0: 4 uA (Reset value) Use 1 instead

1: 3 uA Note: Recommended setting

RXBPF_MIDCUR

R/W

Controls reference bias current to RX bandpass filters:

0: 4 uA (Default)

1: 3.5 uA

LOW_LOWGAIN

R/W

LNA low gain mode setting in AGC low gain mode.

MED_LOWGAIN

R/W

LNA low gain mode setting in AGC medium gain mode.

HIGH_HGM

R/W

RX Mixers high gain mode setting in AGC high gain mode.

MED_HGM

R/W

RX Mixers high gain mode setting in AGC medium gain mode.

7:6

LNA_CAP_ARRAY[1:0]

R/W

Selects varactor array setting in the LNA

0: OFF

1: 0.1pF (x2) (Nominal)

2: 0.2pF (x2)

3: 0.3pF (x2)

5:4

RXMIX_TAIL[1:0]

R/W

Control of the receiver mixers output current.

0: 12 µA

1: 16 µA (Nominal)

2: 20 µA

3: 24 µA

3:2

RXMIX_VCM[1:0]

R/W

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

1:0

RXMIX_CURRENT[1:0]

R/W

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)

CC2420-RTR1 数据表(PDF) 68 Page - Texas Instruments

CC2420-RTR1 数据表(HTML) 68 Page - Texas Instruments

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