Multichannel digital audio processor with FFX

The STA311B is a single-chip solution for digital audio processing and control in multichannel applications and provides output capabilities for FFX™ (full flexible amplification). In conjunction with an FFX™ power device, it provides high-quality, high-efficiency, all digital amplification. The device is extremely versatile, allowing for input of most digital formats including 6.1/7.1-channel and 192 kHz, 24-bit DVD-audio, DSD/SACD. In the 5.1 application the additional 2 channels can be used for audio line-out or headphone drive.

Key Features

  • 8 channels of 24-bit FFX
  • >100 dB SNR and dynamic range
  • Selectable 32 kHz-192 kHz input sampling rates
  • 6 channels of DSD/SACD
  • Digital gain/attenuation +58 dB to -100 dB in 0.5 dB steps
  • Advanced “pop-free” operation
  • Digital “pop-free” operation for single-ended mode
  • Soft volume update
  • Individual channel and master gain/attenuation plus channel trim (-10 dB to +10 dB)
  • Up to 10 independent 32-bit user-programmable biquads (EQ) per channel
  • Bass/treble tone control
  • Pre- and post-EQ full 8-channel input mix on all 8 channels
  • Dual independent limiters/compressors
  • Dynamic range compression or anti-clipping modes
  • AutoModes
    • 5-band graphic EQ
    • 32 preset EQ curves (rock, jazz, pop, etc.)
    • Automatic volume-controlled loudness
    • 5.1 to 2-channel downmix
    • Simultaneous 5.1- and 2-channel downmix outputs
    • 3 preset volume curves
    • 2 preset anti-clipping modes
    • Preset movie nighttime listening mode
    • Preset TV channel/commercial AGC mode
    • 5.1, 2.1 bass management configurations
    • AM frequency automatic output PWM frequency shifting
    • 8 preset crossover filters
  • Individual channel and master soft/hard mute
  • Automatic zero-detect and invalid input mute
  • Automatic amplifier power-down on clock loss
  • Advanced AM interference frequency switching and noise suppression modes
  • I²S output channel mapping function
  • Independent channel volume and DSP bypass
  • Channel mapping of any input to any processing/FFX channel
  • Selectable per-channel FFX damped ternary or binary PWM output
  • Max power correction for lower full-power THD
  • Variable per-channel FFX output delay control
  • 192 kHz internal processing sampling rate, 24-bit to 36-bit precision

设计

技术文档

产品规格
Description Version Size
DS9521 DS9521: Multichannel digital audio processor with FFX™ 1.0 1 MB
应用手册
Description Version Size
AN3340 AN3340: Loudspeaker characterization and compensation 1.3 3 MB

出版刊物和宣传资料

手册
Description Version Size
ST’s solutions for mobile devices 3.2 3 MB
支持和社区

样片和购买

型号 Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STA311B VFQFPN 59 8x8x0.9 Tray -40 90 Active 3 1000 NEC EAR99 - MORE INFO
STA311BTR VFQFPN 59 8x8x0.9 Tape And Reel -40 90 Active 3 1000 NEC EAR99 PHILIPPINES MORE INFO DISTRIBUTOR AVAILABILITY
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

质量和可靠性

型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STA311B ActiveVFQFPN 59 8x8x0.9IndustrialEcopack3 0 0
STA311BTR ActiveVFQFPN 59 8x8x0.9IndustrialEcopack3 0 0
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(**) 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.

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