Sound Terminal 2.1-channel high-efficiency digital audio system

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  • The STA350Bx is an integrated solution of digital audio processing, digital amplifier control, and FFX-power output stage, thereby creating a high-power single-chip FFX™ solution comprising high-quality, high-efficiency, and all-digital amplification.

    The STA350Bx is based on an FFX (fully flexible amplification) processor, a proprietary technology from STMicroelectronics. FFX is the evolution and the enlargement of ST’s ternary technology: the new processor can be configured to work in ternary, binary, binary differential and phase-shift PWM modulation schemes.
    The STA350Bx contains the ternary, binary and binary differential implementations, a subset of the full capability of the FFX processor.
    The STA350Bx is part of the Sound Terminal® family that provides full digital audio streaming to the speaker, offering cost effectiveness, low power dissipation and sound enrichment.
    The STA350Bx power section consists of four independent half-bridges. These can be configured via digital control to operate in different modes. 2.1 channels can be provided by two half-bridges and a single full-bridge, providing up to 2 x 18 W + 1 x 40 W of music output power, by using standard 4 and 8 Ω speakers. Two channels can be provided by two full-bridges, providing up to 2 x 50 W of music power, by using standard 6 Ω speaker or 2 x 40 W by using 8 Ω speakers at 25 V. The IC can also be configured as 2.1 channels with 2 x 40 W provided by the device and external power for FFX power drive. If configured as mono-BTL, the latter is capable of providing up to 1 x 90 W on a standard 3 Ω load or 1 x 75 W by using a 4 Ω, setting the supply voltage at 25 V. Please refer to the package thermal characteristics and application suggestions for more details.
    Also provided in the STA350Bx are a full assortment of digital processing features. This includes up to 8 programmable biquads (EQ) per channel. Special digital signal processing techniques are available in order to manage low-frequency quantization noise in case of very low frequency cutoff filter thresholds. The coefficient range -4..4 allows the easy implementation of high shelf filters. Available presets allow the advantage of earlier time-to-market by substantially reducing the amount of software development needed for certain functions. This includes audio preset volume loudness, preset volume curves and preset EQ settings. There are also new advanced AM radio interference reduction modes. Dual-band DRC dynamically equalizes the system to provide speaker linear frequency response regardless of output power level. This feature independently processes the two bands, controlling dynamically the output power level in each band and so providing better sound clarity.
    The serial audio data input interface accepts all possible formats, including the popular I2S format. Three channels of FFX processing are provided. This high-quality conversion from PCM audio to FFX PWM switching waveform provides over 100 dB SNR and dynamic range.

    Key Features

    • Wide-range supply voltage
      • 5 V to 26 V (operating range)
      • 30 V (absolute maximum rating)
    • Four power output configurations
      • 2 channels of ternary PWM (stereo mode) (2 x 50 W into 6 Ω at 25 V)
      • 3 channels - left, right using binary and LFE using ternary PWM (2.1 mode) (2 x 18 W + 1 x 40 W into 2 x 4 Ω, 1 x 8 Ω at 25 V)
      • 2 channels of ternary PWM (2 x 50 W) + stereo lineout ternary
      • 1 channel of ternary PWM as mono-BTL (1 x 90 W into 3 Ω at 24.5 V)
    • FFX™ 100 dB SNR and dynamic range
    • Selectable 32 to 192 kHz input sample rates
    • I2C control with selectable device address
    • Digital gain/attenuation +42 dB to -80 dB with 0.125 dB/step resolution
    • Soft-volume update with programmable ratio
    • Individual channel and master gain/attenuation
    • Two independent DRCs configurable as a dual-band anti-clipper (B2DRC) or independent limiters/compressors
    • EQ-DRC for DRC based on filtered signals
    • Dedicated LFE processing for bass boosting with 0.125 dB/step resolution
    • Audio presets:
      • 15 preset crossover filters
      • 5 preset anti-clipping modes
      • Preset nighttime listening mode
    • Individual channel and master soft/hard mute
    • Independent channel volume and DSP bypass
    • Automatic zero-detect mute
    • Automatic invalid input-detect mute
    • I2S input data interface
    • Input and output channel mapping
    • Up to 8 user-programmable biquads per channel
    • 3 coefficient banks for EQ presets storing with fast recall via I2C interface
    • Extended coefficient dynamic up to -4..4 for easy implementation of high shelf filters
    • Bass/treble tones and de-emphasis control
    • Selectable high-pass filter for DC blocking
    • Advanced AM interference frequency switching and noise suppression modes
    • Selectable high or low bandwidth noise-shaping topologies
    • Selectable clock input ratio
    • 96 kHz internal processing sample rate with quantization error noise shaping for very low cutoff frequency filters
    • Thermal overload and short-circuit protection embedded
    • Video apps: 576 x Fs input mode supported
    • Fully compatible with the STA339BW and the STA339BWS

样片和购买

产品型号
供货状态
数量
预算价格(US$)
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包装类型
温度(ºC) ECCN (US)
More info
从分销商订购
从ST订购
min
max
STA350BWTR
批量生产
1000 2.556 PowerSSO 36 Tape And Reel -20 85 EAR99
MORE INFO

Country of Origin:

MALAYSIA

查看供货情况

Distributor availability ofSTA350BWTR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 1041 1 Order Now
MOUSER WORLDWIDE 931 1 Order Now

代理商库存报告日期: 2019-11-15

代理商名称

DIGIKEY

库存

1041

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

931

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-11-15

立即购买

STA350BWTR

供货状态

批量生产

数量

1000

单价(US$)

2.556*

Distributor availability ofSTA350BWTR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 1041 1 Order Now
MOUSER WORLDWIDE 931 1 Order Now

代理商库存报告日期: 2019-11-15

代理商名称

DIGIKEY

库存

1041

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

931

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-11-15

单价(US$)

2.556

封装

PowerSSO 36

包装类型

Tape And Reel

Operating Temperature (°C)

(min)

-20

(max)

85

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商

适合您的资源

生态系统

    • 产品型号

      Sound terminal expansion board based on STA350BW for STM32 Nucleo

评估工具

    • 产品型号

      STA350BW Sound Terminal™ 2.1-channel high-efficiency digital audio system board

00 选择要下载的文档

技术文档

    • 描述 版本 文档大小 操作
      DS7146
      2.1-channel high-efficiency digital audio system Sound Terminal®
      7.0
      2.28 MB
      PDF
      DS7146

      2.1-channel high-efficiency digital audio system Sound Terminal®

    • 描述 版本 文档大小 操作
      AN4118
      APWLink USB interface board for Sound Terminal® demonstration boards
      2.0
      1 MB
      PDF
      AN3984
      IIR filter design equations for Sound Terminal® devices
      1.1
      493.63 KB
      PDF
      AN3340
      Loudspeaker characterization and compensation
      1.3
      3.85 MB
      PDF
      AN3383
      STA350BW 2.0-channel demonstration board
      1.1
      5.47 MB
      PDF
      AN4569
      Using Sound Terminal® STA3xyBWz devices in 2.1 channel applications
      1.0
      2.28 MB
      PDF
      AN4118

      APWLink USB interface board for Sound Terminal® demonstration boards

      AN3984

      IIR filter design equations for Sound Terminal® devices

      AN3340

      Loudspeaker characterization and compensation

      AN3383

      STA350BW 2.0-channel demonstration board

      AN4569

      Using Sound Terminal® STA3xyBWz devices in 2.1 channel applications

    • 描述 版本 文档大小 操作
      UM1545
      Using the Audio Processor Workbench (APWorkbench)
      1.0
      3.15 MB
      PDF
      UM1545

      Using the Audio Processor Workbench (APWorkbench)

    • 描述 版本 文档大小 操作
      AN4118
      APWLink USB interface board for Sound Terminal® demonstration boards
      2.0
      1 MB
      PDF
      AN4118

      APWLink USB interface board for Sound Terminal® demonstration boards

出版刊物和宣传资料

    • 描述 版本 文档大小 操作
      APWorkbench software for audio ICs and MEMS microphones 1.0
      2.29 MB
      PDF

      APWorkbench software for audio ICs and MEMS microphones

    • 描述 版本 文档大小 操作
      Analog audio solution 1.0
      1.34 MB
      PDF
      FFX - Full flexible amplification
      4.61 MB
      PDF
      FFX Full flexible amplification 1.0
      4.21 MB
      PDF

      Analog audio solution

      FFX - Full flexible amplification

      FFX Full flexible amplification

产品型号 供货状态 封装 等级规格 符合RoHS级别 Material Declaration**
STA350BWTR
批量生产
PowerSSO 36 工业 Ecopack2

STA350BWTR

Package:

PowerSSO 36

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

PowerSSO 36

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) 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.