ALPHA-TRX433S ALPHA-TRX915S ALPHA RF TRANSCEIVER FM Transceiver Module Low cost, high performance Fast PLL lock time Wakeup timer 2.2V 3.8V power supply Low power consumption 10MHz crystal for PLL timing Clock and reset signal output for external MCU use 16 bit RX Data FIFO SPI interface Internal data filtering and clock recover Digital signal strength indicator (DRSSI) Programmable TX frequency deviation (from 15 to 240 KHz) Programmable receiver bandwidth (from 67 to 400 kHz) Standby current less than 0.3uA Two 8 bit TX data registers High data rate (up to 115.2 kbps with internal demodulatorwith external RC filter highest data rate is 256 kbps) O Operates from -45 to +85 C Applications Wireless Security Systems Car Alarms Remote Gate Controls Remote Sensing Data Capture Sensor Reporting Introduction The Alpha Modules are extremely cost effective but high performance radio modules. Supplied in a miniature Surface mount package this Transceiver module can Transmit/Receive at upto 115Kbps at a maximum of 300m. Operating at 2-5V, the module monitors its battery voltage and can sleep with very low standby current. The module can wake intermittently and provide direct control outputs to a microcontroller making it ideally suited to battery applications. These Modules will suit one to one multi-node wireless links in applications including car and building security, POS and inventory tracking, remote process monitoring. Part Numbers Part Number Description ALPHA-TRX433S FM Transceiver Module, preset to 433MHz ALPHA-TRX868S FM Transceiver Module, preset to 868MHz ALPHA-TRX915S FM Transceiver Module, preset to 915MHz DSALPHA-TRX-6 Feb 11 2009 RF Solutions Ltd. Page 1 ALPHA-TRX433S ALPHA-TRX915S ALPHA RF TRANSCEIVER Pin Description Pin definition Type Function 11 nINT/VDI DI/ DO Interrupt input (active low)/Valid data indicator 9 VDD S Positive power supply 12 SDI DI SPI data input 13 SCK DI SPI clock input 8 ANT IN Antenna Connection 1 SDO DO Serial data output with bus hold 2 nIRQ DO Interrupts request outputactive low Transmit FSK data input/ Received data output 3 FSK/DATA/nFFS DI/DO/DI (FIFO not used)/ FIFO select Clock output (no FIFO )/ external filter capacitor(analog mode)/ FIFO interrupts(active 4 DCLK/CFIL/FFIT DO/AIO/DO high)when FIFO level set to 1, FIFO empty interruption can be achieved 5 CLK DO Clock output for external microcontroller 6 nRES DIO Reset Input (active low 7, 10 GND S Power ground 14 nSEL DI Chip select (active low) DSALPHA-TRX-6 Feb 11 2009 RF Solutions Ltd. Page 2