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Datasheet
Multi-Band AM/FM/SW/LW Digital Radio Receiver IC with RDS Support and Integrated Low-IF Architecture
The SI4732-A10-GSR is a highly integrated digital broadcast radio receiver IC designed to support AM, FM, Shortwave (SW), and Longwave (LW) radio bands along with RDS (Radio Data System) functionality. Developed by Silicon Labs, this device integrates the complete tuner and receiver chain from antenna input to digital audio output, significantly simplifying radio receiver designs. Operating from a 2.7V to 3.6V supply, the IC is well suited for battery-powered and portable electronic devices.
Built using Silicon Labs’ proven digital low-IF architecture, the SI4732-A10 delivers excellent RF performance, strong interference rejection, and high fidelity audio output. Its high level of integration reduces the need for external components and minimises PCB space, making it ideal for compact designs. The IC requires less than 15 mm² of board area (excluding antenna components), enabling manufacturers to design efficient and feature-rich radio receivers for consumer electronics, portable audio devices, and embedded radio applications.
Key Features
- Multi-Band Radio Receiver – Supports AM, FM, SW (Shortwave), and LW (Longwave) broadcast bands.
- RDS / RBDS Support – Enables display of station information, program details, and other broadcast metadata.
- Digital Low-IF Architecture – Provides superior RF performance and strong interference rejection.
- High Integration Level – Complete tuner and receiver chain integrated from antenna input to digital audio output.
- Minimal External Components – Reduces BOM cost and simplifies circuit design.
- Compact PCB Footprint – Requires less than 15 mm² board area excluding antenna components.
- High TDMA Noise Immunity – Ensures stable operation even in noisy RF environments.
- Low Power Consumption – Suitable for portable and battery-powered electronics.
- Simple Interface Integration – Supports digital control interfaces for easy microcontroller integration.
