RECEIVER RF ALPHA 5.4V 433MHZ

ALPHA-RX433S

Manufacturer Part NumberALPHA-RX433S
DescriptionRECEIVER RF ALPHA 5.4V 433MHZ
ManufacturerRF Solutions
ALPHA-RX433S datasheet
 

Specifications of ALPHA-RX433S

Frequency433MHzSensitivity-100dBm
Data Rate - Maximum115.2kbpsModulation Or ProtocolFM, FSK
Current - Receiving11mAData InterfacePCB, Surface Mount
Antenna ConnectorPCB, Surface MountVoltage - Supply2.2 V ~ 5.4 V
Operating Temperature-40°C ~ 85°CPackage / CaseModule
Lead Free Status / RoHS StatusLead free / RoHS CompliantFeatures-
Applications-Memory Size-
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• FM Transmitter & Receiver Modules
• Available as 433 or 915MHz
• Transmit Range up to 300m
• Miniature SMT Packages
• Data Rate up to 256Kbps
• Programmable Output Power
• 2.2 – 5.4Vdc Operating Voltage
• Standby Current <300nA
• Programmable Freq Deviation
• SPI Interface (for Config)
• Clock and Reset Signal for External MCU
• Wakeup Timer
• Automatic Antenna Tuning
• Differential Antenna Output
• Low Battery Detection
• EMC Compliant , FCC Compliant
o
Operates from -45 to +85
Transmitter
• 2.2-5.4v Supply Voltage
• Programmable Output Power
Receiver
• Standby current < 0.3uA
• Wake up timer function
• PLL Design
• Digital Signal Strength indicator
• Programmable receive bandwidth (67 to 400KHz)
Introduction
The Alpha Modules are extremely cost effective but high
performance radio modules. Supplied in a miniature Surface mount package these modules can
Transmit/Receive at upto 115Kbps at upto 300m range.
Operating at 2.2-5V, both transmitter and receiver monitor their battery voltage and can sleep with very
low standby current. The modules can wake intermittently and provide direct control outputs to a
microcontroller, ideally suited to battery applications. (Especially receivers!)
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
FM Transmitter Module, 433MHz
FM Receiver Module, 433MHz
FM Transmitter Module, 915MHz
FM Receiver Module, 915MHz
©2009 RF Solutions Ltd.
ALPHA-TX
ALPHA-RX
Wireless Security Systems
Car Alarms
Remote Gate Controls
Remote Sensing
Data Capture
Sensor Reporting
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ALPHA-RX433S Summary of contents

  • Page 1

    ... 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 ...

  • Page 2

    ... 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) © ...

  • Page 3

    ... 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 ...

  • Page 4

    ... 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 ...

  • Page 5

    ... 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 ...

  • Page 6

    ... 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 ...

  • Page 7

    ... 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 ...

  • Page 8

    ... 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 ...

  • Page 9

    ... 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] ...

  • Page 10

    ... 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 ...

  • Page 11

    ... < > < > 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 ...

  • Page 12

    ... 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 ...

  • Page 13

    ... 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 ...

  • Page 14

    ... 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 ...

  • Page 15

    ... 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- ...

  • Page 16

    ... 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 ...

  • Page 17

    ... 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 ...

  • Page 18

    ... 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 ...

  • Page 19

    ... 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 ...

  • Page 20

    ... 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 ...