STA309B:Multi-channel digital audio processor with FFX

The STA309B 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 and PDM for MEMS microphone inputs. In the 5.1 application, the additional 2 channels can be used for audio line-out or headphone drive. In speaker mode, with 8 channel outputs in parallel, the STA309B can deliver 1 W (maximum).

Key Features

  • 8 channels of 24-bit FFX®
  • >100 dB SNR and dynamic range
  • Selectable 32 kH-192 kHz input sampling rates
  • 6 channels of DSD/SACD and PDM input
  • 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
  • I2 S 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
产品规格
DescriptionVersionSize
DS8793: Multichannel digital audio processor with FFX®2.0716 KB
应用手册
DescriptionVersionSize
AN3340: Loudspeaker characterization and compensation1.33 MB
手册
DescriptionVersionSize
ST’s solutions for mobile devices3.23 MB
样片和购买
型号PackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)Unit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
STA309BTRVFQFPN 59 8x8x0.9Tape And Reel-40125--NECEAR99-
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
STA309BTRVFQFPN 59 8x8x0.9IndustrialEcopack3
Multichannel digital audio processor with FFX® STA309B
Loudspeaker characterization and compensation APWORKBENCH
1.2 megapixel high dynamic range image sensor VD8640