14.4.7.5 Clock Jitter

The AT86RF212B provides receiver sensitivities up to -110dBm. Detection of such small RF signals requires very clean scenarios with respect to noise and interference. Harmonics of digital signals may degrade the performance if they interfere with the wanted RF signal. A small clock jitter of digital signals can spread harmonics over a wider frequency range, thus reducing the power of certain spectral lines. The AT86RF212B provides such a clock jitter as an optional feature. The jitter module is working for the receiver part and all I/O signals, for example CLKM if enabled. The transmitter part and RF frequency generation are not influenced.