AM FM Radio Module | Broadcast Receiver & RDS – Coral RF

Introduction

An AM FM radio module is a compact receiver‑only component that demodulates broadcast signals into audio. Coral RF provides modules based on Silicon Labs’ Si48xx (cost‑optimised, mechanical tuning) and Si47xx (advanced, RDS/stereo) families – ideal for tabletop radios, boomboxes, clock radios, and portable audio.

AM vs. FM Basics

RDS/RBDS (Radio Data System) provides station name, song title, traffic info – available on Si47xx.

Coral RF Product Families

Si48xx Series – Mechanical‑Tuned, Low‑Cost

• 16‑pin SOIC, 2.0–3.6 V, ~20 mA

• Reduces BOM by >80% vs. discrete designs

• No manual alignment required

Si47xx Series – Advanced, RDS, Digital Tuning

• Built‑in RDS/RBDS decoder (station name, song title, traffic)

• Multi‑band: AM/FM/SW/LW/WB

• I²C control, stereo audio

• Suitable for automotive, professional monitoring, high‑end consumer

Comparison: Broadcast vs. ISM Wireless Modules

Typical Applications

• Tabletop / portable radios (Si4825 – lowest cost)

• Stereo boomboxes (Si4836)

• Clock radios (Si4825/27)

• Emergency / weather radios (Si47xx with WB)

• Automotive infotainment (Si47xx with RDS)

• Professional broadcast monitoring (Si47xx)

Development Support

• Silicon Labs evaluation boards (~$50)

• Coral RF design‑in: schematic review, layout guidance, custom module development

• Hybrid designs: combine broadcast receiver with Coral RF ISM module (e.g., Si4825 + CC1101 for remote control)

Quick Selection Guide

Conclusion

Coral RF’s AM FM radio modules – based on Silicon Labs Si48xx and Si47xx – provide a complete, cost‑effective broadcast receiver solution for consumer, industrial, and automotive products. Whether you need a simple mechanical‑tuned mono radio (Si4825) or an advanced RDS‑enabled stereo receiver (Si47xx), Coral RF offers the module, documentation, and support to accelerate your design.

For applications that also require wireless data (IoT, telemetry, remote control), Coral RF’s broader portfolio of Sub‑1GHz and 2.4 GHz ISM modules (CC1101, CC1310, SX1262) can be seamlessly integrated alongside the broadcast receiver – all from a single trusted supplier.

This shortened article retains all key technical and product information. Contact Coral RF for datasheets, reference designs, and volume pricing.