Microsemi ZL70550 Ultra-Low-Power Sub-GHz RF Transceiver
Microsemi’s ZL70550 RF transceiver is the lowest-power sub GHz radio for high-or low-duty-cycle, wireless-sensor applications. The device is optimized for very low power consumption in both active and sleep modes, making it the leading choice for sensor networks that are powered by a coin-cell battery or an energy harvesting power source.
A highly integrated solution that requires, in addition to the antenna, only a crystal, two decoupling capacitors, and a resistor.
The device includes the Z-Star protocol, which is a powerful and highly optimized MAC that performs complete packet transmissions with acknowledgments and automatic retransmissions on failed receptions. This built-in protocol eliminates the need for processor intervention in packet processing, allowing the processor to go to a power-save state or to perform other critical application. Additionally, the MAC supports other user modes of operation with selectable options like CRC, FEC, and auto length.