[A-DX] es geht weiter bergauf...

[Erik <erkubs@xxxxxx>]

http://www.eetindia.co.in/ART_8800425731_1800005_NP_255734f3.HTM

Digital radio receiver chipset suits automotive apps

STMicroelectronics (ST) has announced that they are sampling a digital AM/FM
radio receiver chipset for use in automotive applications. According to the
company, digital signal processing techniques allow the chipset to feature
excellent reception quality while reducing interference even in presence of
challenging signal conditions such as weak field and strong multipath (reflection
from mountains and buildings).

Jointly developed by ST and Bosch's subsidiary Blaupunkt, the digital receiver
integrates audio signal processing and Radio Data System (RDS) decoding, thus
satisfying the demanding needs of today's mid- and high-end car radios for
world-class quality, high performance, and system cost optimisation. 

The new chipset includes two TDA7528 RF front-end ICs and one STA3005 Digital
Signal Processor (DSP) back-end IC. The solution tunes to all current analogue
radio services worldwide (AM, FM and U.S. weather band) as well as to the recently
introduced digital broadcasts (Digital Audio Broadcasting, **Digital Radio
Mondiale** and HD radio), providing suitable interfaces to external decoders.

An advanced digital audio processor, powered by an ST's proprietary DSP core,
enhances the system's flexibility and efficiency meeting all the needs of
in-vehicle sound processing and equalization, said ST. Additionally, an
embedded ARM7 microcontroller supervises all the internal peripherals, helping
to reduce the workload and software complexity of the car radio's main microprocessor,
and fully supporting RDS management.



73

Erik

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