ALPHA-RX915S RF Solutions, ALPHA-RX915S Datasheet
ALPHA-RX915S
Specifications of ALPHA-RX915S
Related parts for ALPHA-RX915S
ALPHA-RX915S Summary of contents
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... 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 ALPHA-TX433S ALPHA-RX433S ALPHA-TX915S ALPHA-RX915S DSALPHA-4 Jul 09 ALPHA RF M ODULES C Applications Description ...
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... SCK 3 nSEL 4 CLK 5,6,7 GND 8 ANT 9,10 GND 11 VDD 12 GND 13 FSK 14 nIRQ DSALPHA-4 Jul 09 ALPHA RF M ODULES Direction Chip select (Active Low) OUT Clock out for MCU (1-10MHz) - Ground Connection OUT Antenna Connection - Ground Connection IN Positive Power Supply - Ground Connection IN OUT Interrupt Request Out (Active Low) © ...
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... GND 11 VDI 12 SDI 13 SCK 14 nSEL DSALPHA-4 Jul 09 ALPHA RF M ODULES Direction OUT FIFO fill interrupt (Active Low) / status read OUT Interrupt Request Output (Active Low) IN FSK Data Output (non FIFO Mode) / FIFO IN/OUT Clock Output (noFIFO) / External filter Capacitor(analog mode) / FIFO interrupt (active High) when FIFO level set to 1, FIFO Empty interruption can be achieved ...
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... Transmitter Mechanical Dimensions Receiver Mechanical Dimensions DSALPHA-4 Jul 09 ALPHA RF M ODULES 15.9mm IC ©2009 RF Solutions Ltd. ALPHA-TX ALPHA-RX R 9.0mm Page 4 ...
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... RSSI Programmable Step STEP RS ARSSI Filter ARSSI RS DRSSI Response Time, C RESP C Capacitor Bank XL T PWR time, power up time (V POR T Wake up timer period PBT T Programmable Wake up time WAKEUP DSALPHA-4 Jul 09 ALPHA RF M ODULES Parameter Minimum -0.5 -0.5 -25 -55 Parameter Minimum 2.2 -40 Min @ 915 2.2 0 ...
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... Q Factor of Output capacitance O BR FSK Data Rate FSK DF FSK Deviation, 30KHz step FSK T Period for Wake Up timer PBT T Wake Up Timer WAKEUP T Power up time PQR DSALPHA-4 Jul 09 ALPHA RF M ODULES Parameter Minimum -0.5 -0.5 -25 -55 Parameter Minimum 2.2 -40 Minimum @ 915MHz 2.2 0.7xV ...
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... 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 ...
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... 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-4 Jul 09 ALPHA RF M ODULES ©2009 RF Solutions Ltd. ALPHA-TX ALPHA- POR ms m2 ...
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... When F is out of range, the previous value is kept. The synthesizer center frequency MHz * C1 * (C2 + F/4000) 0 The constants C1 and C2 are determined by the selected band as: Band C1 C2 315 1 31 433 1 43 868 2 43 DSALPHA-4 Jul 09 ALPHA RF M ODULES x0 Load capacitor [pF] 0 8.5 1 9.0 0 9.5 1 10.0 0 15.5 1 16.0 frequency deviation [kHz] ...
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... For continual operation, bit ‘et’ must be cleared and set 10 Data Transmit Command ． ． ． ． bit This command indicate that the following data on SDI pin transmitted, the transmission stops if nSel return to hi. 11 ． ． ． ． Status Register Read Command DSALPHA-4 Jul 09 ALPHA RF M ODULES POR B0h ...
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... < > < > Bw1 bw0 Max datarate [kbps 115 DSALPHA-4 Jul 09 ALPHA RF M ODULES ’ ’ bw1 bw0 ©2009 RF Solutions Ltd. ALPHA-TX ALPHA- POR POR D200h , Page ...
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... Transmitter Operation flow DSALPHA-4 Jul 09 ALPHA RF M ODULES Start Initialise ALPHA Module Open Tx Send Data Close Tx Send Data Wait nIRQ Low Write a byte Package send Over? Return ©2009 RF Solutions Ltd. ALPHA-TX ALPHA-RX Page 12 ...
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... 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 ...
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... Enable low battery detection function et Enable wake-up timer ex Enable crystal oscillator x3..x0: select crystal load capacitor …… …… DSALPHA-4 Jul 09 ALPHA RF M ODULES load capacitor [pF] 8.5 9.0 9.5 10.0 15.5 16.0 © 2009 RF Solutions Ltd. ALPHA-TX ALPHA- POR 893Ah ...
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... Data quality detection output (DQD Clock recovery lock output 1 1 DRSSI & DQD g1..g0: select LNA gain g1 g0 LNA gain (dBm - -20 r2..r0: select DRSSI threshold DSALPHA-4 Jul 09 ALPHA RF M ODULES f10 RSSIsetth [dBm] -103 -97 -91 © 2009 RF Solutions Ltd. ALPHA-TX ALPHA- ...
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... If not used, please set bit “dc” to disable CLK output To integrate the load capacitor internal can not only save cost, but also adjust reference frequency by software t4..t0: Set threshold voltage of Low battery detector Vlb=2.2+T*0.1 [V] 7 AFC Command ． ． ． ． bit DSALPHA-4 Jul 09 ALPHA RF M ODULES -85 -79 -73 -67 -61 LNA ...
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... Enable clock recovery auto-lock ml: Enable clock recovery fast mode s1..s0: select data filter type s1 s0 Filter type 0 0 OOK 0 1 Digital filter 1 0 reserved f1..f0: Set DQD threshold DSALPHA-4 Jul 09 ALPHA RF M ODULES rl1 rl0 Freq 315 & 433band: 2.5kHz 868band: 5kHz 915band: 7.5kHz ...
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... Enable FIFO function 12.Reset Mode Command bit Bit 0 (dr): Disables the highly sensitive RESET mode. If this bit is cleared, a 600 mV glitch in the power supply may cause a system reset. For a more detailed description see the Reset modes section. DSALPHA-4 Jul 09 ALPHA RF M ODULES ...
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... Interrupt Controlled Mode: The user can define the FIFO level (the number of received bits) which will generate the nFFIT when exceeded. The status bits report the changed FIFO status in this case. DSALPHA-4 Jul 09 ALPHA RF M ODULES © 2009 RF Solutions Ltd. ALPHA-TX ALPHA-RX Page 19 ...
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... Receiver Operation flow After Initialisation, open FIFO receive mode and wait for nIRQ low , only then can the MCU read received and stored data in FIFO . For the next received package please reset FIFO DSALPHA-4 Jul 09 ALPHA RF M ODULES Start Initialise ALPHA Rx Module ...