STA323W

NRND

2.1-channel high-efficiency digital audio system

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Product overview

Description

The STA323W is a single-chip audio system comprising digital audio processing, digital amplifier control and a DDX®power-output stage. The STA323W uses all-digital amplification to provide high-power, high-quality and high-efficiency. The STA323W power section consists of four independent half-bridges. These can be configured, by digital control, to operate in the following modes.
Two channels, provided by two half-bridges, and a single full-bridge giving up to 2 x 10 W + 1 x 20 W of power output.
Two channels, provided by two full-bridges, giving up to 2 x 20 W of power.
A single, parallel, full-bridge channel capable of high-current operation and giving 1 x 40W output.
The STA323W also provides a full set of digital processing features. This includes up to four programmable 28-bit biquads (EQ) per channel, and bass and treble tone control. AutoModes™ enable a time-to-market advantage by substantially reducing the amount of software development needed for specific functions. These includes auto volume loudness, preset volume curves and preset EQ settings. New advanced AM radio-interference reduction modes are also provided.
The serial audio data input interface accepts all existing formats, including the I²S.
Three channels of DDX®processing are provided. This high-quality conversion from PCM audio to DDX patented 3-state PWM switching provides over 100 dB of SNR and dynamic range.
  • All features

    • Wide supply voltage range (10 V - 36 V)
    • Three power output configurations
      • 2 x 10 W + 1 x 20 W
      • 2 x 20 W
      • 1 x 40 W
    • Thermal protection
    • Under-voltage protection
    • Short-circuit protection
    • PowerSO-36 slug down package
    • 2.1 channels of 24-bit DDX®
    • 100-dB SNR and dynamic range
    • 32 kHz to 192 kHz input sample rates
    • Digital gain/attenuation +48 dB to -80 dB in 0.5-dB steps
    • Four 28-bit user programmable biquads (EQ) per channel
    • I²C control
    • 2-channel I²S input data interface
    • Individual channel and master gain/attenuation
    • Individual channel and master soft and hard mute
    • Individual channel volume and EQ bypass
    • DDX®POP free operation
    • Bass/treble tone control
    • Dual independent programmable limiters/compressors
    • AutoModes™ settings for:
      • 32 preset EQ curves
      • 15 preset crossover settings
      • Auto volume controlled loudness
      • 3 preset volume curves
      • 2 preset anti-clipping modes
      • Preset night-time listening mode
      • Preset TV AGC
    • Input and output channel mapping
    • AM noise-reduction and PWM frequency shifting modes
    • Soft volume update and muting
    • Auto zero detect and invalid input detect muting selectable DDX®ternary or binary PWM output plus variable PWM speeds
    • Selectable de-emphasis
    • Post-EQ user programmable mix with default 2.1 bass-management settings
    • Variable max power correction for lower full-power THD
    • Four output routing configurations
    • Selectable clock input ratio
    • 96 kHz internal processing sample rate, 24 to 28-bit precision
    • Video application supports 576 * fs input mode

Circuit Diagram

EDA Symbols, Footprints and 3D Models

STMicroelectronics - STA323W

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STA323W13TR
NRND
PowerSO 36 MC Industrial Ecopack3

STA323W13TR

Package:

PowerSO 36 MC

Material Declaration**:

PDF

Marketing Status

NRND

Package

PowerSO 36 MC

Grade

Industrial

RoHS Compliance Grade

Ecopack3

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Part Number
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Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
STA323W13TR Available at 2 distributors

Distributor availability ofSTA323W13TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 23 1 Buy from Distributor
MOUSER WORLDWIDE 597 1 Buy from Distributor

Distributor reported inventory date: 2021-12-02

Distributor Name

DIGIKEY

Stock

23

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

597

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2021-12-02

Buy Direct
NRND
EAR99 NEC Tape And Reel PowerSO 36 MC - - MALAYSIA 5.5539 / 1k

STA323W13TR

Marketing Status

NRND

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

5.5539 / 1k

Distributor availability ofSTA323W13TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 23 1 Buy from Distributor
MOUSER WORLDWIDE 597 1 Buy from Distributor

Distributor reported inventory date: 2021-12-02

Distributor Name

DIGIKEY

Stock

23

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

597

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Distributor reported inventory date: 2021-12-02

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

PowerSO 36 MC

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

5.5539 / 1k

Country of Origin

MALAYSIA

(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors