ALPHA-TX Datasheet, PDF (7/16 Pages) List of Unclassifed Manufacturers – ALPHA RF MODULES

ALPHA RF MODULES
ALPHA-TX
ALPHA-RX
Transmitter Programming Guide
1． Brief description
The ALPHA Transmitter is a low cost FSK transmitter. It needs only an MCU, crystal, decoupling capacitor
and antenna to build a high reliability FSK transmitter. The operation frequency can cover 300 to
1000MHz.
The module supports a command interface to setup frequency, deviation, output power and also data rate.
． 2． Commands
1 Timing diagram
．2 Configuration Setting Command
bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 POR
1 0 0 b1 b0 d2 d1 d0 x3 x2 x1 x0 ms m2 m1 m0 8080h
b1..b0: band select：
b1 b0
band[MHz]
0
1
433
1
0
868
1
1
915
d2..d0: select frequency of CLK pin
d2 d1 d0 CLK frequency[MHz]
0
0
0
1
0
0
1
1.25
0
1
0
1.66
0
1
1
2
1
0
0
2.5
1
0
1
3.33
1
1
0
5
1
1
1
10
CLK signal is derived from the crystal oscillator and can be applied to the MCU clock in to save a
second crystal. If not used, please set bit “dc” to disable CLK output
DSALPHA-3 Jul 09
©2009 RF Solutions Ltd.
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