Silicon Labs enhances Si479xx automotive tuner family with SDR technology

Silicon Labs has introduced new hybrid software-defined radio (SDR) tuners, expanding its portfolio to meet the growing need of automotive radio manufacturers to support all global digital radio standards with a common platform.

The Si479x7 devices are Silicon Labs’ first automotive radio tuners supporting the Digital Radio Mondiale (DRM) standard and are an extension of the company's family of Global Eagle and Dual Eagle AM/FM receivers and digital radio tuners.

Silicon Labs is also enhancing its Si4790x/5x/6x automotive tuners with a unique “SDR-friendly” technology, effectively transforming these devices into hybrid SDR tuners. Its hybrid SDR technology includes advanced DSP-based automotive features such as Maximal Ratio Combining (MRC), Digital Automatic Gain Control (AGC), Digital Radio Fast Detect and Dynamic Zero-IF (ZIF) I/Q. These features enable automotive radio manufacturers to support global digital radio standards with a common radio hardware and software design.

This added flexibility will help OEM and Tier 1 customers to reduce design, qualification, sourcing and inventory costs while avoiding the complexity and inefficiency of supporting multiple automotive radio platforms.

Silicon Labs’ automotive tuner portfolio includes highly integrated single and dual device options with best-in-class AM/FM receiver performance. The portfolio supports all broadcast radio bands including AM, FM, Long Wave, Short Wave, Weather Band, HD Radio, DAB (Band III) and DRM.

The tuners are built on Silicon Labs’ industry-leading RF CMOS technology, delivering outstanding automotive receiver performance. Their proven mixed-signal, low-IF RF CMOS design provides sensitivity in weak signal environments and improved selectivity and intermodulation immunity in strong signal environments.