Texas Instruments Summer Internship Program interview questions

Experience: The test had 4 sections each having 20 questions with +1/-0.5 marking. The timing for each section was Analog: 45 minutes, Digital: 45 minutes Aptitude: 30 minutes and Signal Processing: 60 minutes. I was shortlisted for Signal Processing interview. Tips: Course materials to be referred: Analog- Analog Circuits Digital- Digital Systems Signal Processing- Signals and Systems, Digital signal Processing

There was an aptitude round followed by 2 interview rounds. I made it to the first interview round after which they ghosted and didn't contact me back even. I guess college matters to them as they mostly recruit from top colleges only, no matter how good you are.