Sipeed 6+1 Microphone Array for MAiX Dock/Go/Bit

Sipeed 6+1 Microphone Arra is a 6 microphone expansion board for Maix AI development boards designed for AI and voice applications. Including 6+1 digital microphones, 12 three-color LEDs, it supports sound localisation, beam forming, speech recognition etc.

Sipeed R6+1 Microphone Array Datasheet V1.0

Hardware

• Supply voltage of external power supply 3.3V ±0.2V
• Supply current of external power supply >750mA(Full brightness)
• Temperature rise <30K
• Range of working temperature -30℃ ~ 85℃

6 MEMS microphones : MSM261S4030H0

• Sound Pressure Level : 140 dB SPL
• Sensitivity : -26(dB,dBFS @1kHz 1Pa)
• Signal to noise ratio : 57 dB (20kHz bandwidth,A-weighted) THD<1% (100dB SPL @1kHz S=Nom,Rload>2k )
• Clock frequency :
  • 1.0-4.0Mhz(normal mode)
  • 150-800khz(low power mode)

12 SK9822 LED

• Viewing angle : 120 degree
• Synchronous of two-lane
• Choose postive output or negative output RGB tri-color LED out, 8 Bit(256level) color Set,
• 5Bit (32 level) brightness adjustment
• Current 20ma per color, 60mA total at full brigtness