EE6322: VLSI Broadband Communication Circuits, Jan-May 2020

These lectures are available on the web for the benefit of students at IIT Madras and elsewhere. Copyrights to these rest solely with the instructor and IIT Madras. Copying them, publishing them, rehosting them on other servers, or using them for any sort of commercial gain is prohibited.

See this page for information on how to view these videos.

Instructor: Nagendra Krishnapura

Course syllabus, schedule, and assignments can be seen here. If you wish to download these lectures for offline viewing, you may have to disable the player plugin on your browser.

2020-01-13(pdf): Introduction to the course
2020-01-14(pdf): Digital data transmission; Introduction to noise and random processes; Mean and variance; Stationarity and ergodicity
2020-01-17(pdf): Autocorrelation and spectral density of random and deterministic processes; Gaussian distribution
2020-01-20(pdf): Gaussian distribution, Q function; Resistor noise
2020-01-21(pdf): Circuit noise calculations; kT/C noise in an RC filter; MOS transistor thermal noise
2020-01-22(pdf): MOS flicker noise; BJT noise; Input referred noise representation
2020-01-24(pdf): Spectral density of sampled noise; Bit errors due to jitter; Spectrum of a square wave with jitter
2020-01-27(pdf): Spectrum of a square wave with jitter
2020-01-28(pdf): Spectrum of a square wave with jitter; Circuit scaling and noise; Realizing a latch(decision slicer)
2020-01-31(pdf): Regenerative latch; Need for regeneration; Periodically time-varying behavior
2020-02-03(pdf): Time varying impulse response of a latch; Dynamic gain; Latch characteristics-setup time, hold time, and clock-to-Q delay
2020-02-04(pdf): Setup time, hold time, and clock-to-Q delay; Latch variants; Offset and noise
2020-02-05(pdf): Latch noise
2020-02-07: Tutorial 1 discussion
2020-02-10(pdf): Timing constraints on a decision flip-flop; Need for clock recovery; Phase detector for random data
2020-02-11(pdf): Clock and data recovery; Linear phase detector
2020-02-12(pdf): Binary phase detector
2020-02-14: Tutorial 2 discussion
2020-02-24: Quiz I discussion
2020-02-25(pdf): Phase and frequency; Phase domain model of a CDR with forwarded clock
2020-02-26(pdf): Phase domain model of a CDR with forwarded clock; Transfer functions and their interpretation
2020-02-28(pdf): Jitter tolerance and jitter generation of a CDR with forwarded clock; CDR using a bang-bang phase detector
2020-03-02(pdf): Clock and data recovery without a forwarded clock
2020-03-03(pdf): Phase domain model of a CDR without a forwarded clock; Transfer functions
2020-03-04(pdf): JTOL, JTRAN, JGEN in a CDR without a forwarded clock
2020-03-06(pdf): Nature of phase noise of a VCO
2020-03-09(pdf): Phase noise of a VCO; Figure of merit; Jitter generation due to the VCO in a CDR
2020-03-11(pdf): Bang-bang jitter in a CDR
2020-03-13(pdf): Bang-bang jitter; Half rate bang-bang phase detector; Digital CDR
2020-03-16(pdf): Digital CDR without a forwarded clock
2020-03-23(pdf): Loop filters for a digital CDR without a forwarded clock
2020-03-23: Tutorial 3 discussion
2020-03-24(pdf): Serializer and deserializer implementation
2020-03-24: Tutorial 4 discussion
2020-03-25(pdf): Data transmission through a channel
2020-03-27(pdf): Data transmission through a channel; Sampled pulse response of the channel
2020-03-30(pdf): Intersymbol interference(ISI); ISI limits; Eye diagrams; BER with ISI
2020-04-02(pdf): Intersymbol interference(ISI); Eye diagrams; Statistical eye; Channel pulse response
2020-04-03(pdf): Equalization; Continuous-time linear equalizer
2020-04-03: Quiz II discussion
2020-04-06(pdf): Equalization in the discrete-time domain; Semidigital equalizer at the transmitter
2020-04-07(pdf): Equalization; Tx equalization and transmit amplitude; Rx equalization and noise; Cross-talk and effect of equalization
2020-04-08(pdf):Effect of cross-talk; Decision feedback equalizaation
2020-04-08: Tutorial 6, 7 discussion
2020-04-10(pdf): Decision feedback equalizer; Speculative DFE; Half-rate DFE
2020-04-13(pdf): Receiver architecture; Need for VGA and offset correction; Adaptation; Least mean squares solution to the coefficients of a linear combination
2020-04-14(pdf): LMS adaptation; Sign-sign LMS
2020-04-15(pdf): Circuits for serial links-amplifiers;
2020-04-17(pdf): Circuits for serial links-amplifiers;
2020-04-20(pdf): Circuits for serial links-latches; CML latch
2020-04-21(pdf): Circuits for serial links-latches; CMOS latch; Strongarm latch
2020-04-22(pdf): Circuits for serial links-latches; Dynamic offset of a strongarm latch; Transmit drivers; Current and voltage mode drivers
2020-04-24(pdf): Circuits for serial links-Current mode transmit drivers
2020-04-27(pdf): Circuits for serial links-Voltage mode transmit drivers
2020-04-28(pdf): Voltage mode transmitter with equalization; PAM4 for high speed signaling; Horizontal and vertical eye opening with PAM4