TDA7708LX52

The TDA7708 is a single chip fully-CMOS AM/FM tuner aimed at receivers for terrestrial radio broadcasting.

The TDA7708 is a complete integrated and optimized RF tuner for AM/FM reception. It allows the implementation of AM/FM solution (and also HD-Radio with external STMicroelectronics's STA680 co-processor) for automotive grade receivers and other applications. The TDA7708 combines state-of-art performance with minimum external component count, making it therefore ideal for integration into car radios and other radio devices with challenging performance, quality, reliability and, last but not least, cost requirements. Such a low external component count is made possible by cutting-edge circuit and implementation techniques that overcome the major challenges affecting both very-low and zero IF receivers. The TDA7708 features multiple front-end low-noise amplifiers (LNAs) to cover AM LW/MW/SW bands, and the entire FM band, with advanced automatic gain control (AGC) amplifier and mixer stages. After on-chip IF filtering, the TDA7708 digitizes the signal with a very high dynamic range ADC; it processes the complex phase-quadrature baseband signal allowing applications like multipath noise mitigation, and integrated RDS decoding. The TDA7708 furthermore integrates the HD-Radio channel filtering. Besides providing optimal AM/FM quality reception, the TDA7708 makes it the ideal solution to realize a complete HD-Radio receiver solution (in combination with the external STA680 HD-Radio decoder) or a DRM receiver (paired to the STA660DRM), with a low bill of material, high performance and real automotive grade quality and reliability. The TDA7708CB requires a very small FW code to be downloaded for booting the IC, thus making it especially suited to systems whose microcontroller has limited code storage capability.

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• AEC-Q100qualified: The TDA7708 has successfully met the stringent requirements of the AEC-Q100 standard, which is a critical certification for integrated circuits used in automotive applications. This qualification ensures that the TDA7708 is capable of withstanding the harsh environmental conditions and reliability demands of the automotive industry.

• AM/FMreceptionwithdigitalIFprocessing: This versatile IC combines the capabilities of both AM and FM reception, allowing it to receive a wide range of radio frequencies commonly used in automotive entertainment systems. Additionally, its digital IF processing enhances signal quality and overall performance.

• FullyautomotivegradeCMOSdesign: The TDA7708 is engineered with a complete focus on meeting the automotive industry's stringent requirements. Its CMOS (Complementary Metal-Oxide-Semiconductor) design is tailored to operate flawlessly in the challenging automotive environment.

• AM/FMBand: This feature enables the TDA7708 to cover the entire AM and FM frequency spectrum, ensuring compatibility with various radio stations and broadcast standards worldwide. It offers versatility and flexibility in tuning to different radio signals.

• Low-IF,DSP-basedarchitecture: The TDA7708 employs a Low-IF architecture combined with Digital Signal Processing (DSP) techniques. This innovative approach enhances selectivity, minimizes interference, and optimizes signal quality, resulting in superior audio reception.

• Veryhighdynamicrangebuilt-inIF-ADC: The TDA7708 incorporates a built-in IF Analog-to-Digital Converter (ADC) with an exceptional dynamic range. This feature allows for the accurate digitization of incoming signals, maintaining signal integrity across a wide range of input amplitudes.

• Minimum external component count: To simplify design and reduce overall system complexity, the TDA7708 is engineered to require minimal external components. This not only saves valuable board space but also streamlines the bill of materials (BOM) and manufacturing processes.

• Very Small Footprint Package: The TDA7708C is designed in a compact and space-efficient package, allowing for easy integration into various electronic devices and PCB layouts. Its small form factor contributes to overall board space savings.

• Multipath Noise Mitigation Processing: This feature addresses the common issue of multipath interference in radio signals. The TDA7708C includes advanced processing algorithms that help mitigate noise and distortion caused by signal reflections and multipath propagation.

• RDS Demodulation with Group and Block Synchronization: The TDA7708C excels in demodulating Radio Data System (RDS) signals. It ensures accurate reception of RDS data by providing group and block synchronization capabilities, enhancing the reliability of data extraction.

• Compatible with HD-Radio™ and DRM: The TDA7708C is designed to work seamlessly with both HD Radio™ and Digital Radio Mondiale (DRM) systems. This compatibility enables modern radio receivers to access digital broadcasting and high-quality audio content.

• Digital Audio Output: This feature allows the TDA7708C to provide digital audio output, ensuring pristine and interference-free audio signal transmission to downstream audio processing components or digital-to-analog converters (DACs).

• Fully RoHS-Compliant: The TDA7708C complies with the Restriction of Hazardous Substances (RoHS) directive, which restricts the use of certain hazardous materials in electronic products. This compliance underscores its commitment to environmental responsibility and safety.

TDA7708 Manufacturer

TDA7708 is manufactured by ST, STMicroelectronics N.V., often known simply as ST or STMicro, is a multinational technology corporation with roots in both France and Italy. It is headquartered in Plan-les-Ouates, located near Geneva, Switzerland. The company is publicly traded on several prominent stock exchanges, including the New York Stock Exchange, Euronext Paris (where it is a component of the CAC 40), and the Borsa Italiana in Milan (included in the FTSE MIB index). STMicro is renowned as the largest semiconductor contract manufacturing and design company in Europe.

TDA7708 Applications

• Car Radios: The TDA7708 takes center stage in car radio receivers, serving as the heart of the radio tuning and signal processing functions. It ensures that drivers and passengers enjoy reliable and high-quality AM and FM radio broadcasts during their journeys.

• Automotive Entertainment Systems: In modern vehicles, the TDA7708 often plays a pivotal role in sophisticated automotive entertainment systems. These systems encompass a wide range of multimedia functions, where the TDA7708 contributes by providing seamless and clear radio reception as part of a comprehensive infotainment experience.

• Aftermarket Car Audio Systems: Automotive enthusiasts and consumers seeking to upgrade their existing car audio setups turn to the TDA7708. When integrated into aftermarket car audio systems, it elevates the radio reception quality, allowing users to enjoy their favorite radio stations with enhanced clarity and precision.

• Car Audio Systems: Beyond radio reception, the TDA7708 can be employed in various components of car audio systems. Its capabilities extend to sound tuning and enhancement, ensuring that the audio output meets the highest standards of quality and fidelity.

• Automotive Infotainment: As a core component of advanced automotive infotainment solutions, the TDA7708 contributes to a rich multimedia experience within vehicles. It seamlessly integrates with other infotainment features, such as navigation, connectivity, and multimedia playback, to create a holistic and enjoyable in-car environment.

• Customized Audio Profiles: In applications where tailored audio profiles and settings are crucial, the TDA7708's capabilities shine. It allows for precise adjustments and customization of audio parameters, enabling users to create personalized soundscapes that cater to their preferences.

• Wireless Audio Streaming: The TDA7708's role extends to facilitating wireless audio streaming within the automotive context. It ensures that streamed audio content, whether from smartphones or other devices, is received and processed with excellence, enhancing the overall in-car entertainment experience.

TDA7708 Equivalent Parts

While the TDA7708 is a specific IC designed for car radio reception, there are alternative radio tuner ICs available from various manufacturers, often with similar features and capabilities. Some alternatives include the NXP TEF7000 series and the Silicon Labs Si47xx series.

FAQs 

What makes the TDA7708 suitable for automotive applications?

The TDA7708 is tailored to meet the specific audio requirements of modern vehicles, offering high-quality sound and advanced features ideal for in-car entertainment and communication.

How does noise cancellation in the TDA7708 work?

The TDA7708 utilizes sophisticated algorithms to identify and suppress background noise, resulting in a quieter and more pleasant driving environment.

Can I connect my smartphone to the TDA7708 for music streaming?

Yes, the TDA7708 comes equipped with Bluetooth connectivity, allowing seamless integration with smartphones and other external devices for music streaming.

What sets the TDA7708 apart from other automotive audio systems?

The TDA7708 distinguishes itself with its superior audio processing, noise reduction capabilities, and versatile applications, making it a top choice for automotive audio solutions.

How does the TDA7708 contribute to safety on the road?

By enabling hands-free calling and providing voice-guided navigation, the TDA7708 enhances safety by minimizing distractions and ensuring drivers stay focused on the road.

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