• Saurabh Saxena

• Online

• Tue./Thu.: 4:00-5:15 PM
• Alternate Friday

Registered students can login and see the course page at https://courses.iitm.ac.in/. Resources, tutorials, exam schedules, discussion forum etc. can be accessed from the moodle page.

Login to moodle at https://courses.iitm.ac.in/ to post questions and contact faculty.

• Assignments (10%)
• Quiz-I (20%)
• Quiz-II (20%)
• Project (20%)
• End Sem (30%)

The recorded lectures are listed below.

1. Lecture#1(pdf): Introduction to PLLs
2. Lecture#2(pdf): Crystal/LC oscillator as clock source, Basic operation of a PLL
3. Lecture#3(pdf): Basic operation of a PLL with mixer, loop filter, and voltage controlled oscillator at block level
4. Lecture#4(pdf): Basic operation of a PLL with mixer, loop filter, and voltage controlled oscillator at block level (contd.)
5. Lecture#5(pdf): Small-signal model of a basic PLL, Type/order of a PLL
6. Lecture#6(pdf): Frequency acquisition in Type-I PLL
7. Lecture#7(pdf): Frequency acquisition in Type-I/II PLL
8. Lecture#8(pdf): Frequency acquisition in Type-I/II PLL (contd.)
9. Lecture#9(pdf): Frequency acquisition in Type-II PLL (contd.)
10. Lecture#10(pdf): Different types of Phase Error Detector (PD)
11. Lecture#11(pdf): Sample & hold based PD, XOR based PD
12. Lecture#12(pdf): XOR based PD, S-R flip flop based PD, Range extension of PDs
13. Lecture#13(pdf): 3-state PFD, D flip flop based PD
14. Lecture#14(pdf): Frequency Detectors
15. Lecture#15(pdf): Charge-pump PLL
16. Lecture#16(pdf): Design methodology for a type-II order-3 charge-pump PLL (CP-PLL)
17. Lecture#17(pdf): Sources of non-linearity in CP-PLL, Noise analysis in CP-PLLs
18. Lecture#18(pdf): Noise analysis in CP-PLLs (contd.)
19. Lecture#19(pdf): Noise analysis in CP-PLLs (contd.)
20. Lecture#20(pdf): Oscillators, Barkhausen Criterion
21. Lecture#21(pdf): Small swing differential oscillators
22. Lecture#22(pdf): Large swing CMOS ring oscillators
23. Lecture#23(pdf): Large swing CMOS ring oscillators (contd.)
24. Lecture#24(pdf): Large swing CMOS ring oscillators (contd.)
25. Lecture#25(pdf): Regulators for ring oscillators
26. Lecture#26(pdf): Regulators for ring oscillators (contd.)
27. Lecture#27(pdf): Phase noise in ring oscillators
28. Lecture#28(pdf): Phase noise in ring oscillators (contd.), Circuit design of PLL building blocks (PFD)
29. Lecture#29(pdf): Circuit design of PLL building blocks (PFD)

Assignments will be posted below. You are expected to solve them on your own. You should submit each one by 09:00AM of the due date mentioned. Copying will carry strict penalties.

Topics include analog and digital integer-N phase-locked loops (PLLs). Building blocks include phase/frequency detectors, charge-pump, LC/ring-oscillators, multi-modulus frequency dividers, active/passive loop-filter, etc.

To develop intuition behind frequency synthesizer design, learning mathematical basis behind operation, and realizing PLLs at architecture and transistor level.

• F. Gardner, Phaselock Techniques, John Wiley & Sons, 2005.
• W. Egan, Phase-Lock Basics, John Wiley & Sons, 2008.
• R. Best, Phase-Locked Loops : Design, Simulation, and Applications, McGraw Hill, 2003.

• Analog Circuits

Attendance will be strictly enforced.