RDM-T4FZ

RF Transceiver Module (433 MHz)

The RDM-T4FZ is a low-cost sub 1 GHz transceiver designed for very low power wireless applications. The circuit is mainly intended for the ISM (Industrial, Scientific and Medical) and SRD (Short Range Device) frequency band 433 MHz, but can easily be programmed for operation at other frequencies in the 387-464 MHz band. The RF transceiver is integrated with a highly configurable baseband modem. The modem supports various modulation formats and has a configurable data rate up to 500 kbps. RDM-T4FZ provides extensive hardware support for packet handling, data buffering, burst transmissions, clear channel assessment, link quality indication, and wake-on-radio. The main operating parameters and the 64-byte transmit/receive FIFOs of RDM-T4FZ can be controlled via an SPI interface. A 4-wire SPI serial interface is used for configuration and data buffer access.

Frequency of operation

• 433 MHz

Interface

• Single board transceiver with SPI Interface

Receiver Sensitivity

• High receiver sensitivity of -112 dBm

Supply Voltage

• 1.8 V to 3.6 V

Power Consumption

• n Receive mode: 14 mA
• In Transmit mode: 15 mA
• In Sleep mode: 400 nA

RF Output Power

• Programmable output power from -30 dBm to +10 dBm

Data Rate

• Programmable data rate from 1.2 kbps to 500 kbps

Modulation

• 2 FSK, GFSK, MSK supported as well as OOK and flexible ASK shaping

Other features

• Integrated analog temperature sensor
• Digital RSSI output
• Programmable carrier sense (CS) indicator
• Optional automatic whitening and de-whitening of data
• Wake-on radio functionality for automatic low-power RX polling
• Separate 64-byte TX and RX data FIFOs (enables burst mode data transmission)

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