A time-interleaved converter with signal paths is clocked at 500 MHz and driven with a sinusoidal input at 181 MHz. The output spectrum is shown in Fig. P17.31 up to the Nyquist frequency, 250 MHz. It...

A time-interleaved converter with signal paths is clocked at 500 MHz and driven with a sinusoidal input at 181 MHz. The output spectrum is shown in Fig. P17.31 up to the Nyquist frequency, 250 MHz. It includes tones due to dc offset and gain mismatch in the time-interleaved architecture, as well as the 3rd harmonic of the input signal due to nonlinearity. Identify the source of each tone in the spectrum.