Silicon Labs' car radio solution
Silicon Labs says its new portfolio of Global Eagle and Dual Eagle AM/FM receivers and digital radio tuners and Digital Falcon coprocessors enable automakers and Tier 1 suppliers to address all market segments, cost, and performance levels, and digital radio standards. OEM and aftermarket radio designs based on Silicon Labs' new portfolio can reportedly scale from low-cost, single-tuner AM/FM radios to high-performance systems with multiple tuners and antennas, enabling car radio suppliers to leverage their R&D across multiple product lines, all with a common software API.
The Global Eagle (Si4795x) and Dual Eagle (Si4796x and Si4797x) families of analog AM/FM receivers and digital radio tuners extend the performance of Silicon Labs' tuners and receivers, which are deployed by leading automotive OEMs and Tier 1 suppliers worldwide. The Si479xx devices leverage Silicon Labs' low-IF digital architecture, delivering better RF performance and interference rejection. In addition, the Si479xx family's firmware algorithms are designed to dynamically adjust signal reception in moving cars to ensure optimal reception under the harshest field conditions.
The audio subsystem of both Eagle families reportedly provides a complete solution to synchronize, process, and distribute digital and audio signals in the automotive head unit. To accelerate time to market, Silicon Labs provides four- and six-channel audio post-processing reference designs supporting cabin equalization, loudness compensation, tone control, chime generation, and audio source mixing. This flexible architecture enables integration of customer or third-party algorithms.
The Digital Falcon (Si469x) family of digital radio coprocessors is designed to provide channel demodulation and source decoding of HD Radio and DAB/DAB+ digital signals delivering audio and data. The Digital Falcon coprocessor’s aim is to simplify system design and minimize the bill of materials (BOM) by eliminating the need for an external RAM memory module for channel decoding typically required by third-party digital radio processors. The Digital Falcon family reportedly enables designs to scale from low- to high-end systems with its seamless blending capabilities for DAB/DAB+, as well as its support for automatic level and time alignment (ALTA) for HD systems.