SCANC-I

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SCANC-I

  • 01 SCANC-I is an ANC evaluation kit implemented with a low-cost MCU.
SCANC-I

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
0 reference mic x 2 error mic x 2 speaker
Digital Volume Control for Mic Gain and Output Attenuation

Product Contents

  • 01 TMS320F28004x MCU based ANC H/W Evaluation board
  • 02 One set of Active Speaker
  • 03 Three 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 TMS320F28004x
MCU Clock 100MHz
ADC Integrated 3 single-ended 12-bit
DAC Integrated 2 12-bit
Input Lowpass Filter 1.2kHz cutoff frequency, 8th-order Linear Phase 0.5 degree
Output Lowpass Filter 1.2kHz 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: 10kHz
  • 02 Algorithm: Delay-Compensated Variable Step-sized Multi-Channel FxLMS
  • 03 Digital Volume Control for Microphone Gain and Output Attenuation
  • 04 Adjustable Parameters
    • Feedforward controller order
    • Feedback 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
    1 2 2 340 175 N/A
    1 1 1 1100 600 900
    1 1 1 930* 450* N/A
  • 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 1 650 500 300 500
  • 03 Feedfback ANC
    Feedback ANC
    Reference
    Mic    		 Error
    Mic    		 Speaker Maximum order
    of the controller    		 Maximum order
    of the secondary path
    0 2 2 200 110
    0 1 1 1200 600