SPECIFICATIONS

Battery Included: no

Brand Name: Arvin

Certification: NONE

Compatible Audio & Video Equipment Style: Digital-to-Analog Converter (DAC),Amplifier

Dimensions (WxHxD)): 35*60mm

High-concerned chemical: none

Model Number: I2S IIS MEMS

Origin: Mainland China

Package: No

Type: Audio & Video

Weight: 50g

[Basic Specifications]

Input Compatibility: Supports only I²S digital microphones
Digital Output: Standard I²S format, with integrated decoding chip. Parameters: 16bit / 48kHz
Analog Output: Supported via PCM5102 professional decoding chip
Output Switching: Toggle between I²S digital output and USB sound card output
Input Gain: Default 15dB (customizable under specific conditions)
Board Dimensions: 35mm × 60mm (excluding protruding structural components)
Net Weight: 13g
I²S Output Format: Standard I²S master mode, BCK=64FS, MCK=256FS
USB Sound Card Specs: 16bit / 48kHz

Note: When using 1 digital microphone, only 1 channel is active. When using 2 digital microphones, the left and right channels correspond to the audio from each microphone respectively.

[Switch Definitions]

SW1: VDD voltage and signal level selector, supports 1.8V / 3.3V switching
SW2: Audio output mode selector, toggles between I²S digital output and USB sound card output

[I²S Microphone Interface Pinout]

Pin	Definition	Description
DIN	Input	Digital microphone data pin
BCK	Output	Digital microphone bit clock pin
LRCK	Output	Digital microphone word select (channel) pin
VDD	Power Out	1.8V / 3.3V power supply output (reserved for digital microphone power)
GND	Ground	Power supply negative terminal

[I²S Output Interface Pinout]

Pin	Definition	Description
GND	Ground	Power supply negative terminal
VDD	Power Out	1.8V / 3.3V power supply output (reserved for external power supply)
LRCK	Output	I²S LRCK (Left/Right Clock) signal
BCK	Output	I²S BCK (Bit Clock) signal, 64FS
DOUT	Output	I²S DATA signal
MCK	Output	I²S MCK (Master Clock) signal, 256FS