1. A question on low-pass filter for current input and output. 2. A question on the loop stability of a PLL. What could be done to improve the stability? 3. A question on a passive switched-cap circuit with multiple clock phases. 4. A question on R-ladder and which node has the largest noise voltage (rms) 5. Multiple RC circuit questions with pulse and step inputs on different R and C combos and different structures. 6. A question on VCO phase noise; a question on the effect of duty cycle variation on phase noise. 7. A question on VCO swings (Q-factor/ bias current etc).
