Assessfy Pvt. Ltd Moderate 5 milestones 100 marks

FM Radio Receiver Design and PCB Fabrication

Target year: TE Sem 5-6 (Mini-Project-IIA/IIB) AICTE: 3 credits · ~75 hrs Bloom: Analyze MU CBCS: ETC601/ETC701 Mini-Project 2A/2B

Real-world project · AICTE-aligned · AI-graded · Audit-ready certificate

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Milestones

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Core skills

About this project

Design a superheterodyne FM receiver from scratch using TDA7000 (or RDA5807) IC. Hand-design the LC tuned circuit, simulate in LTspice, lay out a 2-layer PCB in KiCad, and fabricate via JLCPCB. Characterize sensitivity + selectivity vs commercial receivers.

Course Learning Outcomes (CLOs):
CLO1: Analyze a superheterodyne receiver architecture and trace signal path.
CLO2: Design LC tuned circuits for a given frequency band.
CLO3: Simulate RF circuits in LTspice and validate against analytical results.
CLO4: Lay out a 2-layer PCB with proper RF practices.
CLO5: Characterize a fabricated receiver using lab test equipment.

Industry/societal relevance: Foundation for RF/wireless engineering careers at Qualcomm, Samsung R&D, ISRO, DRDO.

Milestones

1. Block Diagram + Component Selection

15 marks 7d

Draw superheterodyne block diagram, justify IF choice, pick antenna + IC + tuning method. Submit theory note.

2. LC Circuit Design + LTspice Sim

20 marks 12d

Calculate L + C for 88-108 MHz band. Simulate in LTspice, plot frequency response, confirm bandwidth.

3. Schematic + PCB Layout

25 marks 14d

Full schematic in KiCad. 2-layer PCB layout with proper ground plane + via stitching. Export Gerbers.

4. PCB Fabrication + Assembly

20 marks 14d

Order via JLCPCB. Hand-solder all SMD + through-hole components. Power-up test, scope key nodes.

5. Sensitivity + Selectivity Test

20 marks 18d

Lab measurement of MDS (minimum discernible signal), adjacent-channel rejection. Compare with commercial portable FM radio.

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Skills you'll learn

Analog Circuit DesignRF basicsLTspice simulationPCB layout (KiCad)Test equipment (RF generatorspectrum analyzer)Soldering SMD

Tools used

LTspiceKiCad 7JLCPCB (PCB fab)TDA7000 ICRF signal generatorSpectrum analyzer (lab)MultimeterSoldering station with hot air

Prerequisites

Analog Electronics; Communication Engineering I; Network Analysis; SMD soldering basics

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You'll earn — Certificate (PDF)

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FM Radio Receiver Design and PCB Fabrication

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