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ALPHA-RX Datasheet(PDF) 7 Page - List of Unclassifed Manufacturers |
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ALPHA-RX Datasheet(HTML) 7 Page - List of Unclassifed Manufacturers |
7 / 16 page DSALPHA-3 Jul 09 © 2009 RF Solutions Ltd. Page 7 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 |
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