Pulse Code Modulation (PCM) | Digital Communications| Sampling, Quantization, Encoding| Btech | ece

Welcome to Unit-1 Topic-3 of Digital Communications!
In this lecture, we cover Pulse Code Modulation (PCM) — one of the most important and frequently asked 10-mark topics in B.Tech ECE examinations.

This video is perfect for:
✔ ECE, EEE, CSE (AI/ML) students
✔ Exam preparation, assignments, and viva

🎯 Topics Covered in This Video:
• What is PCM?
• PCM Block Diagram
• Three Steps of PCM:
– Sampling
– Quantization
– Encoding
• Quantization noise
• Bitrate calculation
• SNR Formula for PCM
• Advantages & Disadvantages
• PCM Applications
• Important points for a perfect 10-mark answer

This explanation follows the official Andhra University EC3102 Digital Communications syllabus and is completely exam-oriented.

📌 Previous Videos:
1️⃣ Sampling & Aliasing
2️⃣ PAM / PWM / PPM

📌 Next Video Coming Soon: DPCM, DM, ADM & CVSD
Comment “Next Video” if you want it early!

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