ST TDA7786

The TDA7786x (ELITE) tuner is an optimized highperformance AM/FM tuner IC family for car-radio applications, suitable also (in combination with an external baseband decoder) for HD Radio reception. Its members integrate mixers and IF amplifiers for AM, FM and WX, fully integrated VCO and PLL synthesizer, IF- processing including adaptive bandwidth control, stereo decoder, RDS decoder, and digital interfaces for external HD Radio decoding on a single IC. AM/FM IBOC base band filtering is available in parallel to standard analog reception. The utilization of digital signal processing results in numerous advantages: very low number of external components, very small space occupation and easy application, very high selectivity due to digital filters, high customization possibility through software control, automatic alignment and a powerful DSP for custom processing. Two versions of the device cover different application/performance requirements: TDA7786: entry-level, high-performance tuner; TDA7786M: tuner with enhanced behavior in case of FM multipath, thanks to the proprietary MuSICA algorithm. Both versions are HW- and SW-compatible.

• AEC-Q100 qualified
• FM, AM and weather band reception
• Fully integrated VCO for world tuning
• High performance PLL for fast RDS system
• Integrated AM LNA and PIN diodes
• Automatic self alignment for FM front-end preselection filter and image rejection
• Integrated IF filters with high selectivity, dynamic range and adaptive bandwidth control
• Drift-free Digital-IF signal processing with high performance RDS demodulation with group and block synchronization
• High performance stereo decoder with noiseblanker
• Digital interface for HD Radio reception with digital audio blending
• I²C bus-controlled I²S input/output digital audio interfaces
• Single 5 V supply
• LQFP64 package
• MuSICA (multipath noise reduction) algorithm available for premium version of the device