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What is STA320?

This electronic component, produced by the manufacturer "ST Microelectronics", performs the same function as "2.1 MULTICHANNELS DIGITAL AUDIO PROCESSOR WITH DDTM".


STA320 Datasheet PDF - ST Microelectronics

Part Number STA320
Description 2.1 MULTICHANNELS DIGITAL AUDIO PROCESSOR WITH DDTM
Manufacturers ST Microelectronics 
Logo ST Microelectronics Logo 


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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
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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.
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STA320 equivalent
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STA320
4.1.3 Stop Condition
STOP is identified by low to high transition of the data bus SDA signal while the clock signal SCL is stable in the
high state.
A STOP condition terminates communication between STA320 and the bus master.
4.1.4 Data Input
During the data input the STA320 samples the SDA signal on the rising edge of clock SCL. For correct device
operation the SDA signal must be stable during the rising edge of the clock and the data can change only when
the SCL line is low.
4.2 DEVICE ADDRESSING
To start communication between the master and the STA320, the master must initiate with a start condition.
Following this, the master sends onto the SDA line 8-bits (MSB first) corresponding to the device select address
and read or write mode.
The 7 most significant bits are the device address identifiers, corresponding to the I2C bus definition. In the
STA320 the I2C interface has two device addresses depending on the SA port configuration, 0x34 when SA =
0, and 0x36 when SA = 1.
The 8th bit (LSB) identifies read or write operation RW, this bit is set to 1 in read mode and 0 for write mode and
0 for write mode. After a START condition the STA320 identifies on the bus the device address and if a match
is found, it acknowledges the identification on SDA bus during the 9th bit time. The byte following the device
identification byte is the internal space address.
4.3 WRITE OPERATION
Following the START condition the master sends a device select code with the RW bit set to 0.
et4U.coTmhe STA320 acknowledges this and the writeDs afotar Sthheebeytt4eUo.fcoinmternal address.
After receiving the internal byte address the STA320 again responds with an acknowledgement.
DataShee
4.3.1 Byte Write
In the byte write mode the master sends one data byte, this is acknowledged by the STa320. The master then
terminates the transfer by generating a STOP condition.
4.3.2 Multi-byte Write
The multi-byte write modes can start from any internal address. The master generating a STOP condition ter-
minates the transfer.
Figure 3. Write Mode Sequence
BYTE
WRITE
START
MULTIBYTE
WRITE
START
DEV-ADDR
DEV-ADDR
ACK
RW
ACK
RW
SUB-ADDR
ACK
SUB-ADDR
ACK
DATA IN
DATA IN
ACK
STOP
ACK
DATA IN
ACK
STOP
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On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for STA320 electronic component.


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