Design and simulate the operation of a nominally -1 V substrate pump. Comment on the design trade-offs. Verify, using simulations, that a locked PLL using an XOR PD will exhibit, after RC filtering,...

Design and simulate the operation of a nominally -1 V substrate pump. Comment on the design trade-offs.

Verify, using simulations, that a locked PLL using an XOR PD will exhibit, after RC filtering, an average value of VDD/2. Show, using simulations and hand calculations, the filter's average output if the XOR PD sees a phase difference in its inputs of-/4.