SCANC-II

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SCANC-II

  • 01 SCANC-II is an ANC Evaluation Kit implemented with a high-performance dual-core MCU.
SCANC-I
SCANC-I

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GUI based ANC Tuning Software

1 reference mic x 2 error mic x 2 speaker/ 1 reference mic x 1 error mic x 1 speaker

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0 reference mic x 2 error mic x 2 speaker

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Mic Gain 및 출력 Attenuation을 위한 Digital Volume Control

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Digital Volume Control for Mic Gain and Output Attenuation

Product Contents

  • 01 TMS320F2838xD Dual-core MCU ANC H/W Evaluation board
  • 02 One set of Active Speaker
  • 03 Four Condenser Microphones
  • 04 JTAG Emulator
  • 05 5V Adapter and RCA Cable, Microphone Extension Cable
  • 06 USB Storage Device (includes User’s Guide and Tuning Software)

ANC H/W Specification

ANC H/W Specification
H/W Specification
MCU Texas Instruments TMS320F2838xD
MCU Clock 200MHz
ADC Integrated 4 Differential-ended 12bit
DAC 1 External 2-channel SPI 16-bit (for ANC output)
DAC 2 Integrated 3 12-bit DACs (for Singal Generator)
Input Lowpass Filter 1.5kHz cutoff frequency, 8th-order Linear Phase 0.5 degree
Output Lowpass Filter 1.5kHz cutoff frequency, 8th-order Linear Phase 0.5 degree
Mic Pre-amp Software volume control using Digital potentiometer

ANC S/W Specification

  • 01 Sampling Frequency: 12kHz
  • 02 Algorithm : Delay-Compensated Variable Step-sized Multi-Channel FxLMS
  • 03 Digital Volume Control for Microphone Gain and Output Attenuation
  • 04 3 Channel Signal Generator for noise source
    • Multi-Sinusoidal Signal
    • Colored Signal
    • White Signal
  • 05 Adjustable Parameters
    • Feedforward controller order
    • FFeedback controller order
    • Feedback Neutralization filter order (supported only in single channel ANC)
    • Convergence factor
    • Regularization factor
    • Leaky factor
    • Momentum factor (supported only in single-channel ANC)

Supported Configuration and Maximum Order Settings

  • 01 Feedforward ANC
    Feedforward ANC
    Reference Error Mic Speaker Maximum order
    of the controller    		 Maximum order of the
    secondary path    		 Maximum order of the
    Feedback Neutralization filter
    2 2 2 600 380 N/A
    1 2 2 600 380 N/A
    1 1 1 2000 1100 1300
    1 1 1 1500* 1100* N/A

    (*) When applying the Momentum Factor

  • 02 Hybrid ANC
    Hybrid ANC
    Reference
    Mic    		 Error
    Mic    		 Speaker Feedforward Maximum
    order of the controller    		 Feedback Maximum
    order of the controller    		 Maximum order of the
    secondary path    		 Maximum order of the
    Feedback Neutralization filter
    1 1 1 2000 700 1100 1300
    1 1 1 1500* 700* 1100* 1300*

    (*) When applying the Momentum Factor

  • 03 Feedfback ANC
    Feedback ANC
    Reference
    Mic    		 Error
    Mic    		 Speaker Maximum order
    of the controller    		 Maximum order of the
    secondary path
    0 2 2 600 380
    0 1 1 2000 1100