STA311B

Active

Multichannel digital audio processor with FFX

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Product overview

Description

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.

  • All 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

The current status of a product:
Active: Product is in volume production
Evaluation: Product is under characterization. Limited Engineering samples available
Preview: Product is in design stage
Target: Product is in design feasibility stage.No commitment taken to produce
Proposal: Marketing proposal for customer feedback.No commitment taken to design or produce
NRND: Not Recommended for New Design.Product is in volume production only to support customers ongoing production.
Marketing description of the package type.Compliancy of the device with industry requirement domains (IRD)The RoHS status of a product:
ECOPACK 1: Initial grade to identify European RoHS compliant products.
ECOPACK 2: New grade to identify brominated chlorinated and antimony oxide flame retardant free products.
ECOPACK 3: Halogen free RoHS exemptions free products.
(*): ECOPACK 2 version available upon request.
(**): Some versions still existing in ECOPACK 1 or not compliant.
The current status of a product:
Active: Product is in volume production
Evaluation: Product is under characterization. Limited Engineering samples available
Preview: Product is in design stage
Target: Product is in design feasibility stage.No commitment taken to produce
Proposal: Marketing proposal for customer feedback.No commitment taken to design or produce
NRND: Not Recommended for New Design.Product is in volume production only to support customers ongoing production.
Budgetary PriceMarketing description of the package type.Storage method used to contain product.Main country of assembly or fabrication of the product.ECCNs are five character alpha-numeric designations used on the Commerce Control List to identify dual-use items for export control purposes. ECCNs are five character alpha-numeric designations used on the Commerce Control List to identify dual-use items for export control purposes.The value as specified by level (minTypMax) of the ambient temperature (in Cel) in which this item was designed to operate.The value as specified by level (minTypMax) of the ambient temperature (in Cel) in which this item was designed to operate.The value as specified by level (minTypMax) of the ambient temperature (in Cel) in which this item was designed to operate.