Sevya Multimedia Design & Verification Engineer Interview Questions, Process, and Tips

Q1. What are the universal gates? Make Nand using Nor.
Ans. 
Universal gates are gates which can be used to implement any other gate. NAND and NOR gates are examples of universal gates.
• Universal gates can be used to implement any other gate in digital circuits.

• NAND gate and NOR gate are examples of universal gates.

• NAND gate can be constructed using NOR gates by applying De Morgan's theorem.
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Q2. What is mux? What are the use of select lines in mux?
Ans. 
A mux (multiplexer) is a digital circuit that selects one of multiple input signals and forwards it to a single output.
• Mux is used to select one of multiple input signals based on the select lines.

• The number of select lines determines the number of input signals that can be selected.

• Common examples of mux include 2:1 mux, 4:1 mux, and 8:1 mux.
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Q3. Explain setup time and hold time and what is the importance of setup time?
Ans. 
Setup time and hold time are timing constraints in digital circuits to ensure proper operation of flip-flops.
• Setup time is the minimum amount of time data must be stable before the clock edge for it to be reliably sampled.

• Hold time is the minimum amount of time data must be stable after the clock edge for it to be reliably sampled.

• Setup time violations can lead to metastability issues in flip-flops.

• Hold time violations...read more
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Q4. What is sequential ckt ? What is flip flop?
Ans. 
Sequential circuit is a type of digital circuit where the output depends not only on the present input but also on the history of the input.
• Sequential circuit stores information about past inputs, unlike combinational circuits.

• Flip flop is a basic building block of sequential circuits, used to store one bit of information.

• Flip flops have two stable states (0 or 1) and are used for storing binary information.

• Examples of...read more
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Q5. What is MOSFET ?
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MOSFET stands for Metal-Oxide-Semiconductor Field-Effect Transistor, a type of transistor used in electronic devices.
• MOSFET is a type of field-effect transistor that is commonly used in integrated circuits.

• It consists of a metal gate electrode separated from the semiconductor by a thin insulating layer of oxide.

• MOSFETs are used for amplifying or switching electronic signals in devices like computers, smartphones, and p
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Q6. What is OP-AMP?
Ans. 
OP-AMP stands for Operational Amplifier, a type of electronic amplifier with two inputs and one output.
• OP-AMP is a high-gain electronic voltage amplifier with differential inputs.

• It is commonly used in analog circuits for signal processing, filtering, and mathematical operations.

• OP-AMPs have a wide range of applications including audio amplifiers, instrumentation amplifiers, and voltage comparators.
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It was around 2 to 3h duration test

Q1. Basic questions related to digital electronics and system verilog
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Q1. Some basic questions related to digital electronics
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