Alpha FM 433MHz Keyfob Transmitter Module SMD

The Alpha 433MHz transmitter keyfob modules are extremely cost effective but high performance radio modules. Supplied in a miniature Surface mount package these modules can transmit/receive at up to 115Kbps at up to 300m range.

Operating at 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. Applications include wireless security systems, car alarms, remote gate controls, remote sensing, data capture, sensor reporting.

• FM Transmitter, receiver, and transceiver modules
• Available as 433 or 915MHz
• Transmit range up to 300m
• Miniature SMT packages
• Data rate up to 256Kbps
• Programmable output power
• 2.2 - 5.4V DC operating voltage
• Standby current <300nA
• Programmable frequency deviation
• SPI Interface (for Config)
• Clock and reset signal for external MCU
• Wakeup timer
• Automatic antenna tuning
• Differential antenna output
• Low battery detection
• ETSI Compliant /FCC compliant
  
  Transmitter:
• 3-12V Supply voltage
• Programmable output power
  
  Receiver:
• Standby current < 0.3µA
• Wake up timer function
• PLL Design
• Analog and digital signal strength indicator
• Programmable receive bandwidth (67 to 400kHz)