As a growing number of portable applications such as mobile phones and portable media players integrate the FM radio function, there’s a misconception that traditional radios are no longer needed. In reality, wheel-tuned radios have remained immensely popular.

This article discusses how to design a mid-level wheel-tuned radio with an LCD to display frequencies, and explores the practical considerations in selecting audio ICs and display drivers, as well as how to leverage these technologies to deliver the best end-user radio tuning experience.

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