Synopsys Interview Questions and Answers

Q1. Write code of frequency divider
Ans. 
A frequency divider reduces the frequency of an input signal by a specified factor, often used in digital circuits.
• A frequency divider can be implemented using flip-flops.

• For example, a divide-by-2 circuit can be made with a D flip-flop.

• The output frequency is half of the input frequency.

• Frequency dividers are commonly used in clock generation.

• They can be cascaded to achieve higher division factors.
Answered by AI
Add your answer
Q2. Difference between latch & flip flop
Ans. 
Latches are level-sensitive devices, while flip-flops are edge-sensitive, used for storing binary data in digital circuits.
• Latches are transparent when enabled, allowing data to pass through.

• Flip-flops change state only on specific clock edges (rising or falling).

• Example of a latch: SR latch, which can hold a state based on Set and Reset inputs.

• Example of a flip-flop: D flip-flop, which captures the input value on the ...read more
Answered by AI
Add your answer

General aptitude questions

Problem solving, solved 2 out of 3 questions

General topics were given in gd

Q1. Programming concepts
Add your answer
Q2. Projects and coding round questions solved
Add your answer

Aotitude,core que on all subjects in ece

Q1. INTERNSHIP EXPERIENCE
Ans. 
I completed a 6-month internship at XYZ Company where I gained hands-on experience in physical design tools and methodologies.
• Worked on floorplanning, placement, and routing of digital designs

• Utilized tools such as Cadence Innovus and Synopsys ICC

• Collaborated with cross-functional teams to optimize design performance
Answered by AI
Add your answer
Q2. ON DSD,VLSI,ANALOG ELECTRONICS
Add your answer

Q1. APTITUDE,MATH,VLSI,DSD
Add your answer
Q2. VLSI (HARD QUESTION BASED ON INDUSTRY LEVEL LIKE ON CIRCUIT HE GIVES ONE SCENARIO U HAVE TO ANSWER IT)
Add your answer

Q1. Asked about projects and previous company's work
Add your answer
Q2. Tree traversal with vertical order
Ans. 
Tree traversal with vertical order involves traversing a binary tree in a top-to-bottom order for each vertical column.
• Use a hashmap to store nodes at each vertical level

• Perform a level order traversal and update the hashmap with nodes at each vertical level

• Sort the keys of the hashmap to get the nodes in vertical order
Answered by AI
Add your answer

Q1. Design a phonebook app
Ans. 
Phonebook app for storing and organizing contacts
• Allow users to add, edit, and delete contacts

• Include search functionality for easy access to contacts

• Implement sorting options by name, phone number, etc.

• Provide option to categorize contacts into groups or favorites
Answered by AI
Add your answer
Q2. Ant puzzle, Flipping coin puzzle
Add your answer

Q1. Java language understanding
Add your answer
Q2. Deep testing concept
Add your answer

Q1. Tell me about yourself
Add your answer
Q2. Discuss the projects that you have done
Ans. 
I have worked on various ASIC design verification projects, focusing on functional verification and performance optimization.
• Led a project for a high-speed data converter, utilizing SystemVerilog and UVM for comprehensive testbench development.

• Developed a verification environment for a low-power microcontroller, implementing assertions and coverage metrics to ensure design robustness.

• Collaborated with cross-functional ...read more
Answered by AI
Add your answer
Q3. Fifo design and verilog code
Ans. 
FIFO (First In First Out) is a buffer design used in digital circuits for data storage and transfer.
• A FIFO can be implemented using a circular buffer to efficiently manage memory.

• Verilog code for a simple FIFO might include a write pointer and a read pointer.

• Example: A 4-depth FIFO can be defined with an array of 4 registers.

• Control signals like 'full' and 'empty' are crucial for FIFO operation.

• Synchronous FIFO uses a ...read more
Answered by AI
Add your answer
Q4. Puzzels on 1000 bottle and 8 queens chess board.
Add your answer