ZHCSI52G August 2016 – March 2019 DRA780 , DRA781 , DRA782 , DRA783 , DRA785 , DRA786 , DRA787 , DRA788
PRODUCTION DATA.
To evaluate the frequency of a digital signal, an estimated rule of thumb is to consider its bandwidth fBW with respect to its rise time, tR:
fBW ≈ 0.35 / tR
This frequency actually corresponds to the break point in the signal spectrum, where the harmonics start to decay at 40 dB per decade instead of 20 dB per decade.