Basic understanding about an Analog signal.

1. DIGITAL ELECTRONICS
Staff Incharge
Ms.P.Sivalakshmi .M.E.,
Assistant Professor/ECE
R.M.K College of Engineering & Technology
DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING

2. Analog Signal
In which voltages and currents may vary continuously through the given range. They
can take infinite values within the specified range.
ANALOG CLOCK DIGITAL CLOCK
HRS:MIN:SEC HRS:MIN
Tmax
t
37
30.8
26.8
20
Temperature readings taken over a period of month.
V(t)

3. Discrete Time Signal
 The Signal which is defined for the discrete intervalsof time.
 Time axis is discretised, not the magnitude axis.
 Discrete Time Signal is a subset of analog Signal.
 Signal available in real life is analog.
Discrete Time Continuous magnitude Signal
d1 d2 d3 d4 d5 d6 d7 d8 d9 d10

4. Thank You