Useful References
Signal Processing
Analog & Mixed-signal Circuits
Prof. Ali Hajimiri's lectures and notes (time and transfer constants)
Michael Perrott's (MIT) high-speed circuits and systems notes
Prof. Sam Palermo's lecture notes (high-speed circuits & systems)
IITM lecture videos (NPTEL) on integrated circuits and systems
Wireless & High-Speed Circuits & Systems
Packaging & Integration