STV8247 Datasheet, PDF (1/149 Pages) STMicroelectronics – Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders

®
STV82x7
Digital Audio Decoder/Processor
for A2 and NICAM Television/Video Recorders
Key Features
■ Full-Automatic Multi-Standard Demodulation
● B / G / I / L / M / N / D / K Standards
● Mono AM and FM
● FM 2-Carrier (German and Korean Zweiton) and
NICAM
■ Multi-Channel Capability
● 3 I²S digital inputs, S/PDIF (in/out)
● 5.1 analog outputs
● Dolby® Pro Logic®
● Dolby® Pro Logic II®
■ Sound Processing
● ST royalty-free processing: ST WideSurround, ST
OmniSurround, ST Dynamic Bass, SRS® WOW™,
SRS® TruSurround XT™ which is Virtual Dolby®
Surround and Virtual Dolby® Digital compliant
● Independent Volume / Balance for Loudspeakers
and Headphone
● Loudspeakers: Smart Volume Control (SVC),
5-band equalizer and loudness
● Headphone: Smart Volume Control (SVC), Bass-
Treble, Loudness and SRS® TruBass™
■ Analog Audio Matrix
● 4 stereo inputs
● 3 stereo outputs
● THRU mode
■ Audio Delay for Audio Video Synchronization
● Embedded stereo delay up to 120 ms for lip-sync
function (up to 180 ms for tuner input)
● Independent delay on headphone and loudspeaker
channels
The STV82x7 family, based on audio digital signal
processors (DSP), performs high quality and advanced
dedicated digital audio processing.These devices
provide all of the necessary resources for automatic
detection and demodulation of analog audio
transmissions for European and Asian terrestrial TV
broadcasts.
PRELIMINARY DATA
Virtual or true, multi-channel capabilities and easy digital
links make them ideal for digital audio low cost consumer
applications. Starting from enhanced stereo up to
independent control of 5 loudspeakers and a subwoofer
(5.1 channels), the STV82x7 family offers standard and
advanced features plus sound enhancements, spatial
and virtual effects to enhance television viewer comfort
and entertainment.
Typical Applications
● Analog and digital TV with virtual surround sound
● Analog and digital TV with multi-channel surround
sound
● DVD and HDD recorders
● “Palm size” portable TV
STV82x7^®
© 2004 SRS Labs, Inc. All rights reserved, SRS and
the SRS logo are registered trademarks of SRS Labs, Inc.
“Dolby”, “Pro Logic”, and the double-D symbol are trademarks of
Dolby Laboratories.
February 2005
Rev. 3
1/149