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STA320 Schematic ( PDF Datasheet ) - ST Microelectronics

Teilenummer STA320
Beschreibung 2.1 MULTICHANNELS DIGITAL AUDIO PROCESSOR WITH DDTM
Hersteller ST Microelectronics
Logo ST Microelectronics Logo 




Gesamt 30 Seiten
STA320 Datasheet, Funktion
www.DataSheet4U.com
STA320
2.1 MULTICHANNELS DIGITAL AUDIO
PROCESSOR WITH DDX™
1 FEATURES
2.1 Channels of 24-bit DDXTM
Figure 1. Package
>100dB SNR and Dynamic Range
Selectable 32kHz-192kHz Input Sample Rates
I2C control with Selectable Device Address
Digital Gain/Attenuation +48dB to -90dB in
SO28
0.5dB steps
Soft Volume Update
Individual Channel and Master Gain/
Table 1. Order Code
Part Number
Package
Attenuation
STA320
SO28
Dual Independent Limiters/Compressors
Dynamic Range Compression or Anti-Clipping
Modes
AutoModesTM:
Post-EQ User Programmable mix
User Programmable 2.1 Bass Management
– 7 Preset Crossover filters
Sub Channel Mix into Left and Right Channels
– 32 Preset EQ Settings
Advanced AM Interference Frequency
– Auto Volume Controlled Loudness
Switching and Noise Suppression Modes
– 3 Preset Volume Curves
Selectable High or Low Bandwidth Noise
– 2 Preset Anti-Clipping Modes
– Preset Nighttime Listening Mode
DataSheet4U.Scohmaping
Variable
Topologies
Max Power
Correction
for
lower
full-
DataShee
– Preset TV AGC
power THD
Individual Channel and Master Soft and Hard
3 or 4 Output Routing Configurations
Mute
Selectable Clock Input Ratio
Independent Channel Volume and DSP Bypass
Automatic Zero-Detect Mute
96kHz Internal Processing Sample Rate, 24 to
28-bit precision
Automatic Invalid Input Detect Mute
2-Channel I2S Input Data Interface
2 DESCRIPTION
Input and Output Channel Mapping
4 28-bit User Programmable Biquads (EQ) per
channel
Bass/Treble Tone Control
The STA320 is a single chip solution for digital audio
processing and control in 2.1-channel applications. It
provides output capabilities for DDXTM (Direct Digital
Amplification). In conjunction with a DDXTM power
DC Blocking Selectable High-Pass Filter
device, it provides high-quality, high-efficiency, all
Selectable De-emphasis
digital amplification.
DataSheet4U.com
November 2005
This is preliminary information on a new product now in development. Details are subject to change without notice.
DataSheet4 U .com
REV. 1
1/37






STA320 Datasheet, Funktion
www.DataSheet4U.com
STA320
Figure 4. Read Mode Sequence
CURRENT
ADDRESS
READ
START
RANDOM
ADDRESS
READ
START
SEQUENTIAL
CURRENT
READ
START
SEQUENTIAL
RANDOM
READ
START
ACK
DEV-ADDR
DEV-ADDR
RW
ACK
DEV-ADDR
RW
RW= ACK
HIGH
DEV-ADDR
ACK
RW
DATA
SUB-ADDR
DATA
NO ACK
STOP
ACK
DEV-ADDR
START
ACK
DATA
ACK
RW
ACK
SUB-ADDR
ACK
START
DEV-ADDR
ACK
RW
DATA
DATA
DATA
NO ACK
STOP
NO ACK
ACK
STOP
DATA
ACK
DATA
NO ACK
STOP
5 REGISTER SUMMARY
Table 8. Register Summary
Addr
Name
0x00 ConfA
0x01 ConfB
0x02 ConfC
0x03 ConfD
0x04 ConfE
et4U.com 0x05 ConfF
0x06 Mute
0x07 Mvol
0x08 C1Vol
0x09 C2Vol
0x0A C3Vol
0x0B Auto1
0x0C Auto2
0x0D Auto3
0x0E C1Cfg
0x0F C2Cfg
0x10 C3Cfg
0x11 Tone
0x12 L1ar
0x13 L1atrt
0x14 L2ar
0x15 L2atrt
0x16 Cfaddr
0x17 B1cf1
0x18 B1cf2
0x19 B1cf3
0x1A B2cf1
0x1B B2cf2
DataSheet4U.com
D7
FDRB
C2IM
OCRB
MME
SVE
EAPD
QFILT
MV7
C1V7
C2V7
C3V7
AMPS
XO3
C1OM1
C2OM1
C3OM1
TTC3
L1A3
L1AT3
L2A3
L2AT3
C1B23
C1B15
C1B7
C2B23
C2B15
D6
TWAB
C1IM
CSZ4
ZDE
ZCE
PWDN
QXEN
MV6
C1V6
C2V6
C3V6
XO2
C1OM0
C2OM0
C3OM0
TTC2
L1A2
L1AT2
L2A2
L2AT2
C1B22
C1B14
C1B6
C2B22
C2B14
D5 D4 D3
TWRB IR1
IR0
DSCKE SAIFB SAI3
CSZ3
CSZ2
CSZ1
DRC
BQL
PSL
DCCV PWMS AME
EDCaLtEaSheeLt4DUTE.com BCLE
TFRB
C3M
MV5
MV4
MV3
C1V5
C1V4
C1V3
C2V5
C2V4
C2V3
C3V5
C3V4
C3V3
AMGC1 AMGC0 AMV1
XO1
XO0
AMAM2
PEQ4
PEQ3
C1LS1 C1LS0 C1BO
C2LS1 C2LS0 C2BO
C3LS1 C3LS0 C3BO
TTC1
TTC0
BTC3
L1A1
L1A0
L1R3
L1AT1 L1AT0 L1RT3
L2A1
L2A0
L2R3
L2AT1 L2AT0 L2RT3
CFA5
CFA4
CFA3
C1B21 C1B20 C1B19
C1B13 C1B12 C1B11
C1B5
C1B4
C1B3
C2B21 C2B20 C2B19
C2B13 C2B12 C2B11
D2
MCS2
SAI2
CSZ0
DSPB
NSBW
IDE
C2M
MV2
C1V2
C2V2
C3V2
AMV0
AMAM1
PEQ2
C1VBP
C2VBP
C3VBP
BTC2
L1R2
L1RT2
L2R2
L2RT2
CFA2
C1B18
C1B10
C1B2
C2B18
C2B10
D1
MCS1
SAI1
OM1
DEMP
MPC
OCFG1
C1M
MV1
C1V1
C2V1
C3V1
AMEQ1
AMAM0
PEQ1
C1EQBP
C2EQBP
D0
MCS0
SAI0
OM0
HPB
MPCV
OCFG0
MMute
DataShee
MV0
C1V0
C2V0
C3V0
AMEQ0
AMAME
PEQ0
C1TCB
C2TCB
BTC1
L1R1
L1RT1
L2R1
L2RT1
CFA1
C1B17
C1B9
C1B1
C2B17
C2B9
BTC0
L1R0
L1RT0
L2R0
L2RT0
CFA0
C1B16
C1B8
C1B0
C2B16
C2B8
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STA320 pdf, datenblatt
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STA320
5.3.3 Over-Current Warning Detect Adjustment Bypass
BIT R/W RST
NAME
DESCRIPTION
7 R/W
1
OCRB
Over-Current-Warning Adjustment Bypass:
0 - Over-Current warning Adjustment enabled
1 - Over-Current warning Adjustment disabled
The OCDETECT input is used to indicate an Over-Current Warning condition. When OCDETECT is as-
serted (set to 0), the power control block will force a -3dB adjustment to the modulation limit in an attempt
to eliminate the over-current warning condition.
Once the over-current warning volume adjustment is applied, it remains in this state until reset is applied.
5.4 Configuration Register D(Address 03h)
D7 D6 D5 D4
MME
ZDE
DRC
BQL
0100
D3
PSL
0
D2
DSPB
0
D1
DEMP
0
D0
HPB
0
5.4.1 High-Pass Filter Bypass
BIT R/W RST
NAME
DESCRIPTION
0 R/W
0
HPB
High-Pass Filter Bypass Bit. Setting of one bypasses internal
AC coupling digital high-pass filter
The STA320 features an internal digital high-pass filter for the purpose of AC coupling. The purpose of
this filter is to prevent DC signals from passing through a DDX amplifier.
DC signals can cause speaker damage. When HPB=0, this filter is enabled
et4U.co5m.4.2 De-Emphasis
BIT R/W RST
DataSheet4U.com
NAME
1 R/W
0
DEMP
DE-emphasis
0 - No De-emphasis
1 - De-emphasis
Setting the DEMP bit enables de-emphasis on all channels
DESCRIPTION
DataShee
5.4.3 DSP Bypass
BIT R/W RST
NAME
DESCRIPTION
2 R/W
0
DSPB
DSP bypass Bit:
0 - Normal Operation
1 - Bypass of Biquad and Bass/Treble Functionality
Setting the DSPB bit bypasses the EQ functionality of the STA320.
5.4.4 Post-Scale Link
BIT R/W RST
NAME
DESCRIPTION
3 R/W
0
PSL Post-Scale Link:
0 - Each Channel uses individual Post-Scale value
1 - Each Channel uses Channel 1 Post-Scale value
Post-Scale functionality can be used for power-supply error correction.
For multi-channel applications running off the same power-supply, the post-scale values can be linked to
the value of channel 1 for ease of use and update the values faster.
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12/37
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