What is the tolerance of the ADF7024 receiver to RF frequency errors and what settings does it depend on?
The ADF7024 features an internal real-time automatic frequency control loop (AFC). In receive, the AFC automatically monitors the RF frequency error during the packet preamble sequence and adjusts the receiver synthesizer local oscillator to account for any RF frequency errors.
With AFC enabled the receiver tolerance to frequency errors (with no receiver sensitivity loss) is typically +/- 46kHz for all profiles. The ADF7024 receiver will continue to receive packets beyond +/- 46kHz but there will be some sensitivity loss.
With AFC disabled there is no frequency correction at the receiver and so the tolerance to frequency errors is worse. With AFC disabled the receiver frequency tolerance depends primarily on the frequency deviation of the FSK/GFSK modulation and is typically ±0.13*FSK_frequency_deviation(kHz).