Description

STV83x7

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Description

STV83xy family is the latest sound processor from STMicroelectronics. Based on STV82xy

family success, the new STV83x8(US) and STV83x7 (EU/Asia/Middle East/Africa) are

particularly intended for the mainstream flat TV market, paving the way to enhanced sound

experience at the end customer level.

One of the new STV83xy family key function is to ensure the proper demodulation of analog

broadcast thanks to its “Autostandard” functionality, a digital standard search engine.

The demodulation functionality based on the field proven STV82xy family, is highly robust in

all concerned area, even where overmodulation is dominant.

Five (5) analog audio auxiliary inputs and three (3) auxiliary SCART compliant outputs are

available and aimed at reducing the bill of material (BOM) by removing audio switches and

buffers.

STV83xy products are designed to fulfill all new digital or hybrid TV digital connectivity

needs thanks to a SPDIF input (bypass only) and two (2) synchronous/asynchronous inter

sound interface (I²S). One of the latter supports Dolby Digital 5.1 PCM audio, which

emphasizes on product differentiation by driving directly analog and digital multichannel

outputs. Thanks to this direct drive, TV manufacturers can fully take advantage of sound

virtualizers such as TruSurround XT (with TruSurround XT 5.1 Digital differentiated logo)

and ST Omnisurround, or be the first to feature the brand new SRS TruSurround HD, which

STMicroelectronics is the first to embed in an IC. Should the Dolby decoder provide only

Left Total/ Right Total (Lt/Rt) signal, an embedded Dolby ProLogic decoder is aimed to

provide the same output quality as with 5.1 inputs.

New consumer application emergences, in particular the flat screen TV market, bring new

audio challenges to overcome and require more specific dedicated audio compensation

tools such as Smart Volume Control (SVC) compressor/expender on headphone and

loudspeakers, anticlipping, 3-bands parametric and 5-band graphic equalizer for a better

acoustic compensation.

In addition to the STV83xy family, a complete digital audio (demodulation, sound processor,

audio amplifier) solution for TV can be used thanks to ST digital class D amplifier STA333

family, with additional equalization capability if required.

STMicroelectronics provides a C reference code for the TV controller to facilitate the

integration in the application software.

STV83x7 and STV83x8 are fully hardware and software compatible to answer platform

uniformization strategy.

To support our customers with an efficient evaluation stage, STMicroelectronics provides an

evaluation bundle with board and software, a comprehensive documentation and application

note.

STV83xy products are available in two (2) packages, LQFP100 and LQFP80 14x14. Both

are pin to pin compatible with the previous product generation.