TDA7786C STMicroelectronics

TDA7786 TDA7786M ELITE automotive tuners for AM/FM car-radio Datasheet - production data Description The TDA7786x (ELITE) tuner is an optimized high- performance AM/FM tuner IC family for car-radio applications, suitable also (in combination with an external baseband decoder) for HD Radio reception. 0 03 Its members integrate mixers and IF amplifiers for LQFP64 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. Features AM/FM IBOC base band filtering is available in AEC-Q100 qualified parallel to standard analog reception. FM, AM and weather band reception The utilization of digital signal processing results Fully integrated VCO for world tuning in numerous advantages: very low number of High performance PLL for fast RDS system external components, very small space occupation and easy application, very high Integrated AM LNA and PIN diodes selectivity due to digital filters, high customization Automatic self alignment for FM front-end pre- possibility through software control, automatic selection filter and image rejection alignment and a powerful DSP for custom Integrated IF filters with high selectivity, processing. dynamic range and adaptive bandwidth control Two versions of the device cover different Drift-free Digital-IF signal processing with high application/performance requirements: performance TDA7786: entry-level, high-performance tuner RDS demodulation with group and block TDA7786M: tuner with enhanced behavior in synchronization case of FM multipath, thanks to the proprietary High performance stereo decoder with noise- MuSICA algorithm. blanker Both versions are HW- and SW-compatible. Digital interface for HD Radio reception with digital audio blending Table 1. Device summary 2 I C bus-controlled Order code Package Packing 2 I S input/output digital audio interfaces TDA7786 LQFP64 Tray Single 5 V supply (10x10x1.4mm) TDA7786M LQFP64 package MuSICA (multipath noise reduction) algorithm available for premium version of the device October 2016 DocID026122 Rev 5 1/54 This is information on a product in full production. www.st.comContents TDA7786, TDA7786M Contents 1 Block diagram and pin description . 6 1.1 Block diagram . 6 1.2 Pin description 7 2 Function description 12 2.1 FM - mixers . 12 2.2 FM - AGC . 12 2.3 AM - LNA . 12 2.4 AM - AGC . 12 2.5 AM - Mixers . 12 2.6 IF A/D converters . 13 2.7 Audio D/A converters 13 2.8 VCO . 13 2.9 PLL 13 2.9.1 Tuner PLL . 13 2.10 Crystal oscillator 13 2.11 DSP and digital hardware accelerators 14 2.12 Digital high speed IO interface pins . 15 2.13 Multipath reduction 15 2.14 HD Radio connectivity . 16 2 2.15 I S - serial audio interface 19 2.16 Audio sample rate converter 21 2.17 Serial control interface . 22 2.17.1 Serial interface / boot mode 22 2 2.17.2 I C bus protocol . 23 2.18 Digital-down-converter (DDC) . 25 3 Electrical specifications . 28 3.1 Absolute maximum ratings 28 3.2 Thermal data 28 3.3 General key parameters 28 3.4 Electrical characteristics 29 3.4.1 FM - section 29 2/54 DocID026122 Rev 5