Features: All SAW-based and RFIC short-range radios include a sleep mode feature to reduce power consumption.
Duty Cycle: Is programmable duty-cycle important (helps to regulate RF power output)? RFM 3rd generation SAW-based and RFIC short-range radios include a software programmable duty-cycle feature.
Clock Recovery: Is clock recovery needed within the RF device? RFM 3rd generation SAW-based and RFIC shortrange radios have built-in clock recovery so that the microprocessor does not have to perform that function to minimize the processing overhead on the microprocessor. RFM 2nd generation short-range radios do not feature built-in clock recovery as they interface to encoders/decoders with built-in clock recovery.
Start Symbol: RFM’s third generation SAW-based and RFIC short-range radios include a transmission start symbol option. The start symbol allows the receiver to automatically detect the start of a message, unloading this function from the host microprocessor. If automatic message detection by the radio is not mandatory, a second generation SAW-based radio can be used to achieve lowest receiver current.