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STA339BWS

2.1 channel high efficiency digital audio system
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The STA339BWS is an integrated solution of digital audio processing, digital amplifier controls and power output stage to create a high-power single-chip FFX digital amplifier with high quality and high efficiency. Three channels of FFX processing are provided. The FFX processor implements the ternary, binary and binary differential processing capabilities of the full FFX processor.

The STA339BWS is part of the Sound Terminal®family that provides full digital audio streaming to the speakers and offers cost effectiveness, low power dissipation and sound enrichment.

Also provided in the STA339BWS are a full assortment of digital processing features. This includes up to 8 programmable biquads (EQ) per channel. Available presets enable a time-to-market advantage by substantially reducing the amount of software development needed for functions such as 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 linear frequency speaker response regardless of output power level. This feature separates the audio frequency band into two sub-bands independently processed to provide better sound clarity and to avoid speaker saturation.

The serial audio data input interface accepts all possible formats, including the popular I2S format. The high-quality conversion from PCM audio to FFX PWM switching provides over 100 dB of SNR and of dynamic range.

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Errata Sheet
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Key Features

  • Wide-range supply voltage, 4.5 V to 21.5 V
  • Three power output configurations:
  • 2 channels of ternary PWM (2 x 20 W into 8 Ω at 18 V) + PWM output
  • 2 channels of ternary PWM (2 x 20 W into 8 Ω at 18 V) + ternary stereo line-out
  • 2.1 channels of binary PWM (left, right, LFE) (2 x 9 W into 4 Ω +1 x 20 W into 8 Ω at 18 V)
  • FFX with 100-dB SNR and dynamic range
  • Scalable FFX modulation index
  • Selectable 32- to 192-kHz input sample rates
  • I2C control with selectable device address
  • Digital gain/attenuation +48 dB to -80 dB with 0.5-dB/step resolution
  • Soft volume update with programmable ratio
  • Individual channel and master gain/attenuation
  • Two independent DRCs configurable as a dual-band anticlipper (B2DRC) or as independent limiters/compressors
  • EQ-DRC for DRC based on filtered signals
  • Dedicated LFE processing for bass boosting
  • Audio presets:
  • 15 preset crossover filters
  • 5 preset anticlipping modes
  • Preset nighttime listening mode
  • Individual channel soft/hard mute
  • Independent channel volume and DSP bypass
  • I2S input data interface
  • Input and output channel mapping
  • Automatic invalid input-detect mute
  • Up to 8 user-programmable biquads/channel
  • Three coefficient banks for storing EQ presets with fast recall via I2C interface
  • 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
  • Thermal overload and short-circuit protection technology
  • Video apps: 576 x fSinput mode supported
  • Pin and SW compatible with STA333BW, STA339BW, STA559BW and STA559BWS

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图案 资源

顶部

Technical Documentation

Product Specifications

描述 版本 大小
pdf
DS6016: 2.1-channel 40-watt high-efficiency digital audio system Sound Terminal®
7.0 1,492 KB

Application Notes

描述 版本 大小
pdf
AN3340: Loudspeaker characterization and compensation
1.2 3,944 KB
pdf
AN3984: IIR filter design equations for Sound Terminal® devices
1.0 494 KB
pdf
AN4118: APWLink USB interface board for Sound Terminal® demonstration boards
2.0 1,029 KB

User Manual

描述 版本 大小
pdf
UM1545: Using the Audio Processor Workbench (APWorkbench)
1.0 3,221 KB

Presentations & Training Material

Training Material

描述 版本 大小
pdf
Learn the basics about STSpeakerSafe technology
1.0 197 KB

Related Tools and Software

Related Tools and Software

产品型号 描述
APWorkbench Audio Processor Workbench software development suite
STEVAL-CCA035V1 APWLink USB interface board based on the STA120D

Publications and Collaterals

Flyer

描述 版本 大小
pdf
APWorkbench software for audio ICs and MEMS microphones
2,349 KB
pdf
Sound Terminal for TV and speakers
156 KB

Brochure

描述 版本 大小
pdf
Analog audio solution
1,371 KB
pdf
FFX Full flexible amplification
4,307 KB

样品 & 购买

顶部
产品型号 Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Automotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STA339BWS13TRActivePowerSSO 36Tape And Reel-20150_-2.414Distributor reported inventory date: 2014-08-29
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA10000
Farnell Element14Order NowEUROPE8401
MOUSEROrder NowWORLDWIDE1001
Ecopack2PDF
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(*) 建议零售价格仅用于预算,以美元为单位,每。的报价,以当地货币计算的价格,请联系您当地的 ST 销售办事处 或我们的 分销商
(**) 材料声明表格上提供st.com可以是一般的文件,根据最常用的包,包内的家庭。出于这个原因,他们可能不是100%准确,对于一个特定的设备。请联系我们 销售支持 在特定设备上的信息。
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