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STMicroelectronics Make Vehicle Sounds Safer

Geneva, Jul. 31, 2018 – 

The FDA803D and FDA903D digital-input automotive audio amplifiers from STMicroelectronics are richly featured to simplify integration and maximize reliability in telematics and emergency-eCall equipment, Acoustic Vehicle Alerting Systems (AVAS) in hybrid/electric vehicles, and to enhance high-end infotainment systems.

With I2S and TDM digital-audio inputs and feedback-after-filter topology for low noise and high sound quality, these 1x45W class-D amplifiers simplify design and save BOM costs. Combining these features with full I2C automotive-grade diagnostics including unique offset and open-load detection in play mode, the FDA803D and FDA903D realize the next generation of amplifiers for cost-effective essential safety equipment. Thanks to these integrated features, they simplify certification to the required ISO 26262 ASIL (Automotive Safety Integrity Level), too.

The FDA903D has an additional load-current monitoring feature, which allows continuous monitoring of the speaker thus enabling advanced diagnostics as well as speaker performance enhancement.

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