Silicon Labs Senior Engineer Interview Questions and Answers

Q1. Ofdm, Fixed point, sampling theorem, digital filters,
Add your answer
Q2. Previous work clarity
Ans. 
Previous work clarity is essential for successful collaboration and understanding of project requirements.
• Clearly explain the projects you have worked on in the past, including your role and responsibilities

• Provide examples of how you communicated with team members to ensure clarity in project goals

• Discuss any challenges you faced in previous projects and how you overcame them
Answered by AI
Add your answer

Q1. Fft, ofdm, CP, sampling theorem, previous experience,
Add your answer
Q2. C basics, memory layout, function pointer, big small endian, bit manipulation, zero padding in structures
Add your answer

Bit manipulation, memory layout, interrupts, semaphore mutex, implement memcpy, sorting, algo to share resource equally

Q1. Previous work experience, general attitude
Add your answer

Duration: 1Hour 30 Minutes, 2 Coding Questions of Total 175 Marks. 1st Question has 75 marks and 2nd Question has 100 marks.

Q1. 1. Find the smallestMissingNumber in given array using Bitwise OR operation alone 2. Based on Array data Manipulation.
Ans. 
Using Bitwise OR operation to find the smallest missing number in an array.
• Iterate through the array and perform Bitwise OR operation with each element to set corresponding bit in a bitmask

• Iterate through the bitmask to find the first unset bit, which represents the smallest missing number

• Example: Array [0, 1, 3, 4, 6] would have a bitmask of 10101, smallest missing number is 2
Answered by AI
Add your answer
Q2. Q2: Customized Data Extraction From Given Dynamic Array & Perform Some Math Operations On the Extracted Data
Add your answer

Q1. Write a Pseudo code for given scenario?
Ans. 
Pseudo code for a scenario
• Define variables and data structures needed

• Write the main logic using conditional statements and loops

• Handle edge cases and error conditions

• Test the pseudo code with sample inputs
Answered by AI
Add your answer

Q1. System Design & Design Pattern based questions
Add your answer

Q1. Not Applicable (Yet to be scheduled)
Add your answer

Q1. Bitwise operation and memory layout in c
Ans. 
Bitwise operations are used to manipulate individual bits in memory. Memory layout in C refers to how data is stored in memory.
• Bitwise operations include AND, OR, XOR, and NOT.

• They are often used for tasks like setting or clearing specific bits, checking if a bit is set, or toggling bits.

• Memory layout in C determines how variables are stored in memory, including their size, alignment, and order.

• It is important to under...read more
Answered by AI
Add your answer
Q2. Explain few terms in LTE
Ans. 
LTE stands for Long-Term Evolution, a standard for wireless communication in mobile networks.
• LTE is a 4G wireless communication technology

• It provides high-speed data transmission and low latency

• LTE uses OFDMA for downlink and SC-FDMA for uplink

• LTE supports multiple antennas for improved signal quality (MIMO)

• LTE Advanced (LTE-A) is an enhanced version with higher data rates and capacity
Answered by AI
Add your answer
Q3. In one path goes wrong in mimo does snr and data both or any one goes bad
Add your answer

3 HackerEarth Qestions in 1 hour.
1 easy
2 medium

Q1. 1. Discussion regarding my current project architecture. 2. 1 medium level DSA question.
Add your answer

Q1. Discussion regarding you past project/company. Situation based questions.
Add your answer

Q1. Self introduction
Add your answer

Q1. All product knowledge
Add your answer
Q2. Special in A/R, Lence meter, Microscope
Add your answer
Q3. In pcb how to foulfinding
Ans. 
Foulfinding in PCB involves identifying and troubleshooting issues or faults in the printed circuit board.
• Inspect the PCB for physical damage or defects such as burnt components, broken traces, or solder bridges.

• Use a multimeter to check for continuity and proper voltage levels at different points on the PCB.

• Utilize schematic diagrams and datasheets to understand the expected behavior of components and signals on the P...read more
Answered by AI
Add your answer