Must the currents in the charge pump in Fig XXXXXXXXXXbe equal for proper DPLL clock-recovery operation? Why or why not? What happens if the currents aren't equal? What happens if the NMOS switches...

Must the currents in the charge pump in Fig. 19.73 be equal for proper DPLL clock-recovery operation? Why or why not? What happens if the currents aren't equal? What happens if the NMOS switches turn on at different speeds than the PMOS switches? Use SPICE to support your answers.