STV82x8
Digital audio decoder/processor
for BTSC television/video recorders
Features
■
Fully automatic multi-standard demodulation
8
x
2
8
–
–
–
M/N standards
FM mono
BTSC (US MTS) stereo and SAP standards
V
T
S
■
Multi-channel capability
TQFP80 Package
TQFP100 Package
–
–
–
–
–
3 x I²S digital inputs
I²S SRC
S/PDIF (pass thru/out)
5.1 analog outputs
1 x I²S digital output (shared with one I²S digital
input)
2 x I²S additional digital outputs (TQFP100 only)
I²S digital loop for external delay (TQFP100
only)
Description
The STV82x8 family, based on 24-bit 48kHz audio
DSPs (digital signal processors), performs high quality
and advanced dedicated digital audio processing.The
STV82x8 devices provide all of the necessary
–
–
resources for automatic detection and demodulation of
analog audio transmissions for USA, Taiwanese, and
Brazilian terrestrial analog TV broadcasts.
■
Sound processing: Loudspeaker
®
®
–
–
–
Dolby ‚ Pro Logic ‚
®
®
Dolby ‚‚ Pro Logic II ‚
ST royalty-free processing: ST WideSurroundTM
,
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 STV82x8 family offers
standard and advanced features plus sound
®
ST OmniSurroundTM, (which is Virtual Dolby ‚
®
Surround and Virtual Dolby ‚ Digital compliant),
ST Dynamic BassTM
®
®
®
–
–
SRS ‚ WOWTM, SRS TruSurround XTTM
,
(which is Virtual Dolby ‚ Surround and Virtual
®
Dolby ‚ Digital compliant)
enhancements, spatial and virtual effects to enhance
television viewer comfort and entertainment.
SVC (smart volume control), 5-band equalizer
and loudness
–
–
Independent volume/balance
Variable beep tone and 3 sampled tones
Table 1.
Device summary
■
■
Sound processing: Headphone
Order code
STV82x8
Packaging
–
SVC (smart volume control), bass-treble,
®
loudness and SRS ‚ TruBassTM
Independent volume/balance
,
Tray
–
Analog audio matrix
–
4 stereo inputs or 5 stereo inputs (TQFP100
only)
–
–
–
3 stereo outputs
THRU mode
2 V
capability
RMS
■
Audio delay for audio video synchronization
–
–
–
Embedded stereo delay up to 117 ms for lip-
sync function
Independent delay on headphone and
loudspeaker channels
External additional audio delay support
(TQFP100 only)
March 2009
Rev 2
1/167
www.st.com
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