Data Sheet

LJ1269HC
Rev1.0 Page 62 Web: www.ljelect.com
RegBitrateLsb
(0x04)
7-0
BitRate(7:0)
rw
0x0b
LSB of Bit Rate (Chip Rate if Manchester encoding is enabled)
B i t R a t e =
FXO SC
BitRate (15,0)
Default value: 4.8 kb/s
RegFdevMsb
(0x05)
7-6
-
00
unused
5-0
Fdev(13:8)
rw
000000
MSB of the frequency deviation
RegFdevLsb
(0x06)
7-0
Fdev(7:0)
rw
0x52
LSB of the frequency deviation
F d e v = F s t e p ⋅ Fd e v (15,0)
Default value: 5 kHz
RegFrfMsb
(0x07)
7-0
Frf(23:16)
rw
0xe4
MSB of the RF carrier frequency
RegFrfMid
(0x08)
7-0
Frf(15:8)
rw
0xc0
Middle byte of the RF carrier frequency
RegFrfLsb
(0x09)
7-0
Frf(7:0)
rw
0x00
LSB of the RF carrier frequency
Frf = F ste p × F r f□ 23 ;0 □
Default value: Frf = 915 MHz (32 MHz XO)
RegOsc1
(0x0A)
7
RcCalStart
w
0
Triggers the calibration of the RC oscillator when set.
Always reads 0. RC calibration must be triggered in Standby
mode.
6
RcCalDone
r
1
0 → RC calibration in progress
1 → RC calibration is over
5-0
-
r
000001
unused
RegAfcCtrl
(0x0B)
7-6
-
r
00
unused
5
AfcLowBeta
On
rw
0
Improved AFC routine for signals with modulation index lower
than 2. Refer to section 3.4.16 for details
0 → Standard AFC routine
1 → Improved AFC routine
4-0
-
r
00000
unused
Reserved0C
(0x0C)
7-0
-
r
0x02
unused
Sub GHz FSK/OOK Transceiver Module DATASHEET