ALPHA-TRX433S Datasheet, PDF (6/14 Pages) rfsolutions.ltd – The Alpha Modules are extremely cost effective but high performance radio modules.

ALPHA RF TRANSCEIVER
ALPHA-TRX433S
ALPHA-TRX915S
Programming guide
Brief description
ALPHA-TRX supports a command interface to setup frequency, deviation, output power and also data
rate. There is no need to change any hardware when using frequency-hopping applications
Commands
Timing diagram
Configuration Setting Command
bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 POR
1 0 0 0 0 0 0 0 el ef b1 b0 x3 x2 x1 x0 8008h
e l: Enable TX register
e f: Enable RX FIFO buffer
b1..b0: select band
b1
b0
0
0
0
1
1
0
1
1
band[MHz]
Reserved
433
868
915
x3..x0: select crystal load capacitor
x3
x2
0
0
0
0
0
0
0
0
1
1
1
1
x1
x0 load capacitor [pF]
0
0
8.5
0
1
9.0
1
0
9.5
1
1
10.0
1
0
15.5
1
1
16.0
DSALPHA-TRX-6 Feb ‘11
©2009 RF Solutions Ltd.
Page 6