This is arguably the most important section for exam purposes.
Timing relation for correct sequential operation: clock period Tclk ≥ tpcq (clk-to-Q) + tpd(combinational) + tsu + clock skew.
This unit covers how circuits modify the shape of signals. It includes High-Pass and Low-Pass RC circuits, their response to sinusoidal, step, pulse, square wave, and ramp inputs. It also discusses differentiators and integrators.
Key requirements (original wording):
Simple Sweep Circuit (using transistor constant current source):
A capacitor charged by a constant current gives ( V_C(t) = \fracIC t ) — perfectly linear sweep.
Example Parameter design (original):
Design a sweep generator for 10 V amplitude in 1 ms with 5% deviation from linearity.
Approach: Use a JFET as current source, choose ( C = 0.1 , \mu F ), ( I = C \cdot \textslope = 0.1 \times 10^-6 \times (10 / 0.001) = 1 , mA ). Pulse And Digital Circuits By Anand Kumar Pdf
Having the PDF isn't enough; you need a strategy to pass the subject.
If you have access to a computer, use LTspice or a free simulator (like Tina-TI or CircuitLab). Design a Bistable multivibrator from the book. Seeing the waveforms on a simulation screen locks the concept in your memory far better than memorization.
Example—RC differentiator into resistor load R_L: This is arguably the most important section for
Design note: choose τ = RC << desired pulse width for differentiation; τ >> pulse width for integration.
Example: A pulse with tw = 200 ns, T = 1 μs → duty cycle = 20%.