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· Marking Format
· Datasheet
· Qualification Report
· Soldering Profile
· Lead-Free Identification
(Marking & Labeling)
· Non-use certificate for RoHS ()
· Package Material Data ()
· ICP Report for PDIP Family ()
Marking Format (STV8216D)




E B C P

S T V 8 2 1 6

2 2 0 B W V P

M L T 2 2 4 4 3



E : Eco Label (Lead-Free = RoHS)
BCP : Internal Process Alphanumeric Code
Sales Type : STV8216
22 : Assy' Plant (Malta)
0BW : Identify the Wafer FAB Lot
VP : Diffusion Traceability Plant
MLT : Country of Origin (Malta)
22 : Testing & Finishing Plant (Malta)
4 : Assy' Year (2004)
43 : Assy' Week (43th week)
® STV82x6
Multistandard TV Audio Processor
and Digital Sound Demodulator
DATASHEET




BUS1
BUS0
SDO




SDA
SCK




SCL




HPD
IRQ




WS
ST




STV82x6 Headphone
Detection
Stereo
Interrupt
Request



Flag




I²S Interface I²C Interface
I²C Bus Expander
Demodulation Audio Processing

Loudspeaker Audio Processing Loudspeaker
Multi-Standard Audio Vol./ LSL
Sound IF Smart Volume Control, ST Wide Surround, Stereo Low Noise 1Vrms
Digital Stereo Bal. LSR
5-band Equalizer and Loudness, D/A Audio Mute
SIF AGC A/D Demodulator Beeper and Subwoofer Output Gain
Source Preprocessing




SW
FM, AM, A2 Digital Subwoofer
and NICAM
Audio
Headphone Audio Processing Headphone
Matrix Audio
Mono In Vol./ Low Noise 1Vrms HPL
Smart Volume Control, Stereo Bal. Audio Mute HPR
Stereo




MONOIN 0.5Vrms Bass/Treble and Beeper D/A
Flag




Audio Audio
AI1L 2Vrms Stereo Stereo
AI1R




Output Scarts
Input A/D D/A Output AO1L
Input SCARTs




Low Noise 2Vrms
Analog Analog Audio Mute AO1R
Audio Audio Matrixing Audio
AI2L Matrix Matrix
2Vrms
AI2R AO2L
Low Noise 2Vrms
Audio Mute AO2R

AI3L 2Vrms Single Crystal Power Supply Management
AI3R Clock Generation DC Regulators, Standby mode
XTO
XTI




This device incorporates the Subwoofer output with Volume Control and
SRS (Sound Retrieval Programmable Bandwidth
System) under licence from
SRS Labs, Inc. Spatial Sound Effects (ST Wide Surround and
Pseudo-Stereo)
SRSâ 3D Surround
Key Features
3-to-2 Analog Stereo Audio I/Os (SCART
NICAM, AM, FM Mono and FM 2 Carrier compatible) with Audio Matrix
Stereo Demodulators for all sound carriers
Low-noise Audio Mutes and Switches
between 4.5 and 7 MHz
I²S Output to interface with Dolbyâ Pro
Mono input provided for optimum AM
Logicâ Decoder
Demodulation performances
I²C Bus-controlled
Demodulation controlled by Automatic
Standard Recognition System Single and standard 27 MHz Crystal
Oscillator
Sound IF AGC with wide range
Power supplies: 3.3 V Digital, 5 V or 8 V
Overmodulation and Carrier Offset recovery
Analog
Smart Volume Control
Embedded 3.3 V Regulators
5-band Equalizer & Bass/Treble Control
Packages: SDIP56 or TQFP80
Automatic Loudness Control
Loudspeaker and Headphone outputs with
Volume/Balance Controls and Beeper


15 May 2003 Revision 2.1 1/95
STV82x6


Table of Contents

Chapter 1 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.1 Overview .............................................................................................................................. 5
1.2 Typical Applications ......................................................................................................... 5
1.3 I/O Pin Description ............................................................................................................... 8


Chapter 2 Demodulator Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
2.1 Digital Demodulator ............................................................................................................ 10
2.2 System Clock ..................................................................................................................... 14


Chapter 3 Audio Processor Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
3.1 Main Features .................................................................................................................... 15
3.2 Smart Volume Control (SVC) ............................................................................................. 16
3.3 ST Wide Surround .............................................................................................................. 17
3.4 5-Band Audio Equalizer ..................................................................................................... 17
3.5 Bass/Treble Control ........................................................................................................... 17
3.6 Volume/Balance Control .................................................................................................... 18
3.7 Automatic Loudness Control .............................................................................................. 20
3.8 Subwoofer Control ............................................................................................................. 20
3.9 Beeper ................................................................................................................................ 20
3.10 SRSTM 3D Surround (STV8226/36 only) ............................................................................ 21


Chapter 4 Audio Matrices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
4.1 Input Audio Matrix .............................................................................................................. 24
4.2 Output Audio Matrix ........................................................................................................... 24


Chapter 5 Additional Controls and Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
5.1 Interrupt Request ............................................................................................................... 25
5.2 I²C Bus Expander ............................................................................................................... 25
5.3 Stereo Flag ......................................................................................................................... 25
5.4 Headphone Detection ........................................................................................................ 25


Chapter 6 I²S Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26




2/95
STV82x6


Chapter 7 Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
7.1 Supply Voltages ................................................................................................................. 27
7.2 Standby Mode .................................................................................................................... 28


Chapter 8 I²C Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
8.1 I²C Address and Protocol ................................................................................................... 29
8.2 STV82x6 Reset .................................................................................................................. 29


Chapter 9 Register List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
9.1 I²C Register Map ................................................................................................................ 31
9.2 STV82x6 General Control Registers .................................................................................. 35
9.3 Analog Block ...................................................................................................................... 37
9.4 Clocking ............................................................................................................................. 39
9.5 Demodulator ....................................................................................................................... 41
9.6 Demodulator Channel 1 ..................................................................................................... 44
9.7 Demodulator Channel 2 ..................................................................................................... 47
9.8 NICAM Registers ............................................................................................................... 53
9.9 Zweiton ............................................................................................................................... 54
9.10 Sound Preprocessing and Selection Registers .................................................................. 55
9.11 Automatic Standard Recognition ........................................................................................ 62
9.12 Smart Volume Control ........................................................................................................ 66
9.13 Surround ............................................................................................................................ 68
9.14 5- Band Equalizer ............................................................................................................... 70
9.15 Loudness/Bass & Treble .................................................................................................... 72
9.16 Volume/Balance Control Registers .................................................................................... 74
9.17 Subwoofer .......................................................................................................................... 77
9.18 Beeper ................................................................................................................................ 78


Chapter 10 Input/Output Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80


Chapter 11 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
11.1 Absolute Maximum Ratings .............................................................................................. 84
11.2 Thermal Data .................................................................................................................... 84
11.3 Supply ................................................................................................................................ 84
11.4 Crystal Recommendations ................................................................................................ 85



3/95
STV82x6


11.5 Analog Sound IF Signal Recommendations ..................................................................... 85
11.6 SIF to LS/HP/SCART Path Characteristics ....................................................................... 86
11.7 SCART to SCART Analog Path Characteristics ............................................................... 86
11.8 SCART to I2S Output Path (via ADC) Characteristics ...................................................... 87
11.9 MONOIN to ADC and I2S Output Path Characteristics .................................................... 87
11.10 I2S to LS/HP/SW Path Characteristics ............................................................................. 87
11.11 I2S to SCART Path Characteristics .................................................................................. 88
11.12 Loudspeaker and Headphone Volume Control Characteristics ........................................ 88
11.13 MUTE Performance ........................................................................................................... 88
11.14 Digital I/Os ......................................................................................................................... 88
11.15 I²C Bus Interface .............................................................................................................. 89


Chapter 12 Package Mechanical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91


Chapter 13 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93




4/95
STV82x6 General Description


1 General Description

1.1 Overview
The STV82x6 is composed of three main parts:
1. TV Sound Demodulator: provides all the necessary circuitry for the demodulation of audio
transmissions of European and Asian terrestrial TV broadcasts. The various transmission
standards are automatically detected and demodulated without user intervention.
2. Audio Processor: based on DSP technology, independently controls loudspeaker, subwoofer
and headphone signals. It offers basic and advanced features, such as a ST Wide Surround,
Equalizer, Automatic Loudness and Smart Volume Control for television viewer comfort. The
STV8226/36 versions can perform additionally the SRSâ 3D Surround for stereo and mono
signals.
3. Audio Matrix: 3 stereo and 1 mono external analog audio inputs to loudspeakers and
headphone, with 2 stereo external analog audio outputs (SCART compatible).

Table 1: STV82x6 Version List

Feature STV8206 STV8216 STV8226 STV8236

AM-FM Mono X X X X

Zweiton X X X X

NICAM X X

ST Wide Surround X X X X

SRSâ 3D Surround X X



Figure 1: Package Ordering Information



SDIP56 Package
Order Code: STV82x6D

TQFP80 Package
Order Code: STV82x6 (Tray)
STV82x6T (Tape & Reel)




1.2 Typical Applications
Figure 2: Typical Application (Low-cost Stereo TV)


Cable and Terrestrial
Analog TV Tuner
STV82x6
TV Sound Demodulation
and Audio Processing




5/95
General Description STV82x6


Figure 3: Typical Application with Sub-woofer and Headphone


Woofer
Cable and Terrestrial
Analog TV Tuner
STV82x6
TV Sound Demodulation
and Audio Processing




Figure 4: Typical Application Electrical Diagram for STV82x6 in SDIP56 package


+5V
C8
R2 22
C9 10nF
+ C1 IC1
SIF Interupt request (to P)
100pF 1 56 I2C bus expander
L1 R3 10uF SIF IRQ
10uH 560 L2 C6 2 55
VTOP BUS0 I2C bus expander
220nF
10uH 3 54 I2S SCK
VREFIF BUS1
C7 100nF
4 53 I2S WS
VDDIF SCK
C5 100nF
5 52 I2S SDO
C11 GNDIF WS

MONO IN 6 51 STEREO Ident
MONOIN ST
C12 1uF
+ 7 50 C35 100nF
AO1L SDO
AO1L
10uF
+ C13
8
AO1R CKTST
49
C71 + 10uF
9 48 C36
AO1R VDCC VDD2
10uF
+ C14
100nF 10 47
C15 GNDC GND2 C72 100nF 22pF
AI1L 11 46
AI1L GNDP
+




R6 270 k



2
1uF C16 10uF C4 12 45
AI1R VDDP




27MHz
XT1
AI1R 100nF 10uF 100nF
+ C70
13
VMC1 XTO
44
+




1uF
C17 C18




1
+




14 43
C2 VMC2 XTI
15 42 C37
AI2L AI2L GNDSP
1uF
+ C3 16 41 C67
+8V R4 330 AI2R GND1 100nF 22pF
AI2R
1uF
+ 17
VDDA VDD1
40
+




C21 C19 18 39 NC C33 470nF
GNDAH MCK
19 38 NC
10uF 100nF AO2L SYSCK BC337-40
1




+5V

+8V 20 37
AO2R RESET
21 36 R5 100k 2 T1
VDDH REG
+


C69
22 35
L6 VREFA SDA
3




10uH 23 34 10uF
AI3L SCL
24 33
AI3R ADR
25 32
BGAP HPD
SDA
+



+




C52 C53 C29 C30 26 31
LSL GNDSA
+5V SCL
27 30
10uF 100nF 10uF 100nF LSR HPR
28 29
2




SW HPL
C20 3 1
AO2L STV82x6D
+
10uF C22
ST8

C68
AO2R
+
+




10uF C73 C25 100nF
C23
AI3L
1uF
+ 10uF 220nF

C24
AI3R
1uF
+
C26
LSL
1uF
+
C27
LSR
1uF
+
C28
SW
1uF
+
C31
HPL
1uF
+C32
HPR
1uF
+
HPD




6/95
Part with STV82x6 with STV82x7
STV82x6



L1 10µH Not Connected
L2 Not Connected 10µH
L3 Not Connected 10µH
L6 10µH Not Connected
L7 Not Connected 10µH
L8 Not Connected 10µH
L9 Not Connected 10µH
L10 Not Connected 10µH
L11 Not Connected 10µH
L12 Not Connected 10µH
R5 330 ohms Not Connected
R6 Not Connected 0 ohm
R7 22 ohms Not Connected
R8 Not Connected 0 ohm
R12 Not Connected 0 ohm
R13 0 ohm Not Connected
LS Left R17 0 ohm Not Connected
R18 Not Connected 0 ohm
R19 0 ohm Not Connected
LS Right R20 Not Connected 0 ohm
C31 Not Connected 100nF
C32 Not Connected 10µF
Subwoofer C38 100nF Not Connected
C40 Not Connected 100nF
C41 Not Connected 10µF
HP Left C42 Not Connected 100nF
C44 Not Connected 100nF
C50 Not Connected 100nF
C60 C62 C63 C64 C54 10µF Not Connected
HP Right
+ 1µF + 1µF + 1µF + 1µF + 1µF C55 Not Connected 100nF
C56 Not Connected 10µF
C61 C57 Not Connected 100nF
C59 Not Connected 10µF
L11 C65 100nF Not Connected
+1.8V
10µH
C66 10µF Not Connected
+ C59 C69 C69 Not Connected 100nF
100µF 100nF SMD T1 BC327-40 Not Connected
SL2 2 to 3 1 to 2
SL3 2 to 3 1 to 2
Headphone detection
C65 100nF SMD




+
C58 C66
1 10µF
+3.3V 1nF




1
L10 SL1
1.8V
10µH + C56 2
100µF
+




3 Address select C11
SC3 IN Right
1µF




3
+




C57 C12
SC3 IN Left
1µF
100nF SMD L3
+3.3V
100nF SMD C13
SCL 10µH
+
C14