ALPHA-TX Datasheet, PDF (11/16 Pages) List of Unclassifed Manufacturers – ALPHA RF MODULES

ALPHA RF MODULES
ALPHA-TX
ALPHA-RX
Receiver Programming Guide
4． Brief description
The ALPHA Receiver is a low cost FSK Receiver with all RF functions integrated. 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. Although each module can cover all frequencies, better
performance is obtained by using the module at the preset frequency
The module supports a command interface to setup frequency, deviation, output power and also data rate.
． 5． 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 eb et ex x3 x2 x1 x0 i2 i1 i0 dc 893Ah
b1..b0: select band
b1 b0
band[MHz]
0
0
315
0
1
433
1
0
868
1
1
915
eb：Enable low battery detection function
et：Enable wake-up timer
ex：Enable crystal oscillator
x3..x0: select crystal load capacitor
x3 x2 x1 x0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
……
……
load capacitor [pF]
8.5
9.0
9.5
10.0
1
1
1
0
15.5
1
1
1
1
16.0
DSALPHA-3 Jul 09
©2009 RF Solutions Ltd.
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