Trade Shows

26.02. - 28.02.2019, Nuremberg




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The DEL-RX300-930MHz is a multi-channel, single RF receiver board, designed for applications within the 300 to 930MHz range. The module is developed for universal applications in the European ISM bands 433 and 868MHz and for similar applications in North America and Asia, e.g. for 315MHz and 915MHz.
The sole significant modification of external parts affects the quartz for systems requiring different application frequencies.
Based on a receiver IC with a “Double-Conversion Super-Heterodyne” architecture, the board includes furthermore a complete integrated FSK- and ASK-demodulator.
The utilized IC allows the employment of an external IF-filter for the familiar 10,7MHz frequency with bandwidths for NB (narrow band) and WB (wide band). In this manner the receiver can be adjusted for both NB and WB applications.
One of the eminent characteristics of the DEL-RX300-930MHz board are the two RF-inputs. This allows applications such as “Antenna-Diversity” or “LNA-Cascading” to be easily realized.
The board runs with a supply voltage of 2.1 to 5.5V with a typical current consumption of 6.5 to 8.1mA.


Features Application examples
  • Input frequency ranges:
    • 300MHz to 470MHz
    • 610MHz to 930MHz
  • FSK input sensitivity:
    • -112dBm (433MHz, SAW, NB)
    • -110dBm (868MHz, WB)
  • ASK input sensitivity:
    • -112dBm (868MHz, Cascading, SAW, WB)
    • -110dBm (433MHz, WB)
  • FSK deviation range:
    • ±10kHz to ±100kHz (WB)
    • ±2kHz to ±10kHz (NB)
  • Maximum data rate:
    • 50kps RZ (bi-phase) code, 100kps NRZ
  • Image rejection:
    • 65dB 1st IF (with external RF front-end filter)
    • 25dB 2nd IF (internal image rejection)
  • IF2 frequency:
    • 10.7MHz
  • Linear RSSI range:
    • > 70dBm
  • Power supply range:
    • 2.1 to 5.5V
  • Operating current:
    • 6.5 to 8.1mA
  • Shutdown current:
    • 50 nA
  • Temperature range:
    • -40 to +85°C
  • Crystal reference frequency:
    • 16 to 27MHz
  • General digital and analog data receiving
  • Smart Metering
  • Wireless access control
  • Low-power telemetry systems
  • Home and building automation
  • Alarm and security systems
  • Garage door openers
  • Remote controls
  • Active RFID tags