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FTXU316_LA_7MIC_V1 7-Microphone Seamless Local Amplification PCBA Kit Product Specification

1. Product Introduction

1.1 Product Description

In public speaking, business meetings, and teaching environments, high-quality audio transmission is critical. FTXU316_LA_7MIC_V1 is designed to meet these scenarios' requirements, aiming to provide speakers with unconstrained amplification experience while ensuring the audience enjoys clear, low-latency audio quality.

  • FTXU316_LA_7MIC_V1Main Board FTXU316_LA_7MIC_V1 Microphone Array Board

1.2 Product Features

  • 7-Microphone Array Technology: 6+1 MIC array utilizing Beamforming technology to precisely control pickup direction, with sidelobe suppression up to 40dB, significantly reducing external noise interference.
  • Superior Audio Processing: Processes voice at 32KHz/24bit sampling rate, ensuring highly faithful output within 8kHz frequency response.
  • Low-Latency Experience: System latency from microphone input to Line-out output is only 15ms, providing seamless amplification experience for both speakers and audience.
  • Noise Reduction and Amplification: Built-in NS noise reduction and AFC algorithms, providing over 10dB amplification gain.

1.3 Product Block Diagram

Product Block Diagram

1.4 Microphone Array Parameters

Parameter Minimum Maximum Unit
Pickup Radius 0 3 m
Frequency Response 100 10K Hz
Sampling Rate - 32 KHz
Microphone Sensitivity - -29 dB
Dynamic Range - 99 dB
BF Beamforming 20 180 °
Feedback Suppression 0 24 dB
Noise Suppression 0 25 dB
Sidelobe Suppression 0 40 dB

1.5 Audio System Parameters

Parameter Minimum Typical Maximum Unit
System Latency - 15 - ms
Amplification Gain - 10 - dB
Automatic Amplification Gain Adjustment -20 - +20 dB
Rated Output Impedance - 16 - Ω

1.6 Absolute Electrical Parameters

Parameter Minimum Maximum Unit
Storage Temperature -40 125
Supply Voltage -0.5 3.63 V
ESD Voltage (Human Body Model) @ TAMB -25℃ -2 2 KV
ESD Voltage (Charged Device Model) @ TAMB -25℃ -500 500 V

1.7 Normal Operating Conditions

Function Minimum Maximum Unit
Operating Temperature 0 70
Operating Voltage 3 3.6 V

1.8 Operating Current

Operating State Average Peak Unit
@5V 130 180 mA

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