RF65 datasheet(58/72 Pages) ETC2

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RF65

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ADVANCED COMMUNICATIONS & SENSING

DATASHEET

6.3. Receiver Registers

Table 21 Receiver Registers

Name

(Address)

Bits

Variable Name

Mode

Default

Value

Description

Reserved14

(0x14)

7-0

0x40

unused

Reserved15

(0x15)

7-0

0xB0

unused

Reserved16

(0x16)

7-0

0x7B

unused

Reserved17

(0x17)

7-0

0x9B

unused

RegLna

(0x18)

LnaZin

LNA

‟s input impedance

→ 50 ohms

→ 200 ohms

unused

5-3

LnaCurrentGain

001

Current LNA gain, set either manually, or by the AGC

2-0

LnaGainSelect

000

LNA gain setting:

000

→ gain set by the internal AGC loop

001

→ G1 = highest gain

010

→ G2 = highest gain – 6 dB

011

→ G3 = highest gain – 12 dB

100

→ G4 = highest gain – 24 dB

101

→ G5 = highest gain – 36 dB

110

→ G6 = highest gain – 48 dB

111

→ reserved

RegRxBw

(0x19)

7-5

DccFreq

010

Cut-off frequency of the DC offset canceller (DCC):

4-3

RxBwMant

Channel filter bandwidth control:

→ RxBwMant = 16

→ RxBwMant = 24

→ RxBwMant = 20

→ reserved

2-0

RxBwExp

101

Channel filter bandwidth control:

FSK Mode:

RegAfcBw

(0x1A)

7-5

DccFreqAfc

100

DccFreq parameter used during the AFC

4-3

RxBwMantAfc

RxBwMant parameter used during the AFC

2-0

RxBwExpAfc

011 *

RxBwExp parameter used during the AFC

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