I2S Microphone Module

This is a highly sensitive microphone module with an MSM261S4030H0 chip and I2S output from DFRobot. The MSM26S4030H0 is an omnidirectional MEMS microphone chip with digital I2S output. I2S is a universal digital audio interface and is frequently used in DSP and digital audio processing fields. In a conventional audio system, the audio signal captured by the microphone is converted into an analog voltage and output and then processed by the main controller chip after it has been converted into a digital signal and encoded by the ADC of the codec. However, the MSM261S4030H0 has a built-in 24bit I2S audio port, enabling it to achieve completely digital signal connections without an additional codec. The raw digital audio signal is output directly to the controller chip. This greatly reduces the complexity of developing signal chains, which gives the product advantages in terms of size, cost, power consumption, and interference resistance. 

Features: 

• MSM261S4030H0 Chip 
  
• Omnidirectional 
  
• I2S Output

Documentation: 

• http://dl.sipeed.com/MAIX/HDK/Sipeed-I2S_MIC/ 

Technical Details: 

• Manufacturer: DFRobot 
  
• Manufacturer SKU: SEN0327 
  
• Voltage: 3.3V 
  
• Current: 1mA 
  
• Sound Level Pressure: 140dB SPL 
  
• Sensitivity: -26(dB, dBFS@1kHz bandwidth, A-weighted) 
  
• S/N Ratio: 57dB (20kHz bandwidth, A-weighted) 
  
• Working temperature: -30°C to 85°C 
  
• Output: I2S 
  
• Connection: 6pin Dupont cable 
  
• Dimensions: 15x10x10mm 
  
• Weight: 2g 

Package Includes: 

• 1x I2S Microphone Module