This rule of thumb enables us to estimate the highest frequency to worry about for a data signal. Spoiler summary: At the Tx, it is 2.5× the bitrate. At the Rx, in a lossy channel, it is the Nyquist: ...

A common problem that engineers are faced with is the need to determine the closed-loop bandwidth of their operational amplifier (op amp) circuit. Some data sheets specify unity-gain bandwidth while ...