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PDF STV82X8 Data sheet ( Hoja de datos )

Número de pieza STV82X8
Descripción Digital Audio Decoder/Processor
Fabricantes STMicroelectronics　
Logotipo STMicroelectronics Logotipo



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No Preview Available ! STV82X8 Hoja de datos, Descripción, Manual

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STV82x8®
Digital Audio Decoder/Processor
for BTSC Television/Video Recorders
Key Features
■ Fully Automatic Multi-Standard Demodulation
● M/N standards
● FM mono
● BTSC (US MTS) stereo and SAP standards
■ Multi-Channel Capability
● 3 I²S digital inputs, S/PDIF (in/out)
● 5.1 analog outputs
● Dolby® Pro Logic®
● Dolby® Pro Logic II®
● 2 I²S digital outputs (TQFP100 only)
● 2 asynchronous I²S digital inputs (TQFP100 only)
■ Sound Processing
● ST royalty-free processing: ST WideSurround, ST
OmniSurround, ST Dynamic Bass, ST Bass
Enhancer, 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, ST Dynamic Bass and SRS®
TruBass™
● 3 different bip tones
■ Analog Audio Matrix
● 4 stereo inputs or 5 stereo inputs (TQFP100 only)
● 3 stereo outputs
● Pass-thru mode
■ Audio Delay for Audio Video Synchronization
● Embedded stereo delay up to 120 ms for lip-sync
function
● Independent delay on headphone and loudspeaker
channels
● External additional audio delay support (TQFP100
only)
The STV82x8 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 USA, Taiwanese, Brazilian etc.
terrestrial analog TV broadcasts.
February 2005
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 STV82x8 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
STV82x8®
STV82x8®
TQFP80 Package
TQFP100 Package
© 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.
Rev. 1
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STV82X8 pdf
STV82x8
Chapter 5 Analog Audio Matrix (Input / Output) . . . . . . . . . . . . . . . .w.w.w..D. a. t.a.Sh.e.e.t4.U..c. o.m. . .35
Chapter 6
6.1
6.2
I²S Interface (In / Out) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
I²S Inputs ............................................................................................................................ 36
6.1.1 I²S Inputs in TQFP 80 Package ...............................................................................................................36
6.1.2 I²S Inputs in TQFP 100 Package .............................................................................................................37
I²S Outputs ......................................................................................................................... 37
6.2.1 I²S Outputs in TQFP 80 Package ............................................................................................................37
6.2.2 I²S Outputs in TQFP 100 Package ..........................................................................................................38
Chapter 7 S/PDIF Input/Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Chapter 8
8.1
Power Supply Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Standby Mode (Loop-through mode) ................................................................................. 41
Chapter 9
9.1
9.2
9.3
Additional Controls and Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Headphone Detection ........................................................................................................ 42
IRQ Generation .................................................................................................................. 42
I²C Bus Expander ............................................................................................................... 42
Chapter 10 STV82x8 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Chapter 11
11.1
11.2
I²C Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
I²C Address and Protocol ................................................................................................... 44
Start-up and Configuration Change Procedure .................................................................. 45
Chapter 12 Register List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
12.1 I²C Register Map ................................................................................................................ 47
12.2 Software Registers ............................................................................................................. 49
12.3 STV82x8 General Control Registers .................................................................................. 53
12.4 Clocking 1 .......................................................................................................................... 56
12.5 Demodulator ....................................................................................................................... 58
12.6 Demodulator Channel 1 ..................................................................................................... 61
12.7 I2S and Analog Control ...................................................................................................... 69
12.8 Clocking 2 .......................................................................................................................... 72
12.9 DSP Control ....................................................................................................................... 73
12.10 Automatic Standard Recognition ........................................................................................ 78
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STV82X8 arduino
STV82x8
General Description
Table 2: STV82x8 Version List (TQFP 100)
www.DataSheet4U.com
STV8248
STV8258
STV8268
STV8278
STV8288
S
T
V
8
2
1
8
F
S
T
V
8
2
3
8
F
S
T
V
8
2
4
8
F
D
S
T
V
8
2
4
8
F
D
S
S
T
V
8
2
5
8
F
D
S
T
V
8
2
5
8
F
D
S
S
T
V
8
2
6
8
F
D
S
T
V
8
2
6
8
F
D
S
S
T
V
8
2
7
8
F
D
S
T
V
8
2
7
8
F
D
S
S
T
V
8
2
8
8
F
D
S
T
V
8
2
8
8
F
D
S
XXXXX
Multi-Channel Capabilities
I²S data input number
111133113333
Analog loudspeakers output number 2.1 2.1 2.1 2.1 2.1 2.1 5.1 5.1 5.1 5.1 5.1 5.1
Embedded SRS® and Dolby® algorithms
Dolby® Pro Logic ® (DPLI) or
Dolby® Pro Logic II® (DPLII)
SRS® WOW™ (WOW) or
SRS® TruSurround XT™ (XT)
General Capabilities
DPLI DPLI DPLI DPLI DPLI DPLI DPLI DPLI DPLII DPLII
WOW
XT
XT
XT
XT
XT
S/PDIF Pass-thru
Second SIF input
XXXXXXXXXXXX
XXXXXXXXXXXX
I²S Output (always available)
XXXXXXXXXXXX
BTSC & SAP / Mono FM
Demodulation
XXXXXXXXXXXX
ST OmniSurround1,
ST WideSurround
ST Voice, ST Dynamic Bass,
ST Bass Enhancer
Dolby® Pro Logic ® (DPLI) or
Dolby® Pro Logic II® (DPLII)
5.1 output
XXXXXXXXXXXX
XXXXXXXXXXXX
DPLI DPLI DPLI DPLI DPLII DPLII
Dolby® Digital Bypass 5.1 output2
Virtual Dolby® Surround
XXXX
XXXXXXXXXX
Virtual Dolby® Digital capability2
XX
XXXX
1. When using Virtual Dolby® Digital or Virtual Dolby® Surround with ST OmniSurround or SRS®
TruSurround XT™ a Dolby® Digital or a Pro Logic ® (or Pro Logic II®) decoder is mandatory respectively
2. Dolby® Digital Bypass capability or Virtual Dolby® Digital are obtained with the use of an external Dolby®
Digital decoder (for example STD2000).
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