Goseeko blog

Electronics

• What is Phase Locked Loop?

The main components of Phase Locked Loop are a phase detector with a voltage controlled oscillator. It also has loop filter feedback.

• What is the Aliasing effect?

Whenever a signal is sampled below Nyquist rate (fs < 2B), the signal is called under sampled and the Aliasing effect hampers the results.

• What is Circular Convolution?

The Circular Convolution can be performed using two basic methods which are concentric circle method and matrix multiplication method.

• What are Digital Modulation Techniques?

In order to make communication more safer and reliable digital signals are used. The basic digital modulation techniques are ASK, PSK,FSK and MSK

• What is the Sampling Theorem?

The sampling theorem states that information contained in a signal is fully preserved in sampled form as long as the fs=2fm.

• What is a Watchdog Timer?

Watchdog timer is a hardware microcontroller. It is basically used to take out a system from an infinite loop and resets the system.

• What is Race around Condition?

In JK flip flop when both J=K=1 the output toggles as long as clock high. This makes the output unstable. This is called race around condition.

• What is the Convolution Theorem?

The convolution theorem states that the transform of convolution of f1(t) and f2(t) is the product of individual transforms F1(s) and F2(s).

• What are Multiplexers and De-multiplexers?

The multiplexer is a special type of combinational circuit which has n-data inputs, one output and m inputs select lines with 2^m = n.