---
product_id: 191649539
title: "Adafruit 4346 PDM Microphone Breakout with JST SH Connector"
brand: "adafruit"
price: "$0.98"
currency: USD
in_stock: false
reviews_count: 1
url: https://www.desertcart.us/products/191649539-adafruit-4346-pdm-microphone-breakout-with-jst-sh-connector
store_origin: US
region: United States of America
---

# Fast data processing High-quality audio capture Easy connectivity Adafruit 4346 PDM Microphone Breakout with JST SH Connector

**Brand:** adafruit
**Price:** $0.98
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Capture Every Sound, Elevate Every Project!

## Quick Answers

- **What is this?** Adafruit 4346 PDM Microphone Breakout with JST SH Connector by adafruit
- **How much does it cost?** $0.98 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/191649539-adafruit-4346-pdm-microphone-breakout-with-jst-sh-connector)

## Best For

- adafruit enthusiasts

## Why This Product

- Trusted adafruit brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Design:** Space-saving design perfect for any project.
- • **Seamless Integration:** Effortlessly connects with JST SH for quick setups.
- • **User-Friendly Library:** Access example code to simplify your development process.
- • **High-Speed Performance:** Experience rapid data management with built-in hardware peripherals.
- • **Versatile Compatibility:** Works with various chipsets, including nRF52840 and ATSAMD21.

## Overview

The Adafruit 4346 PDM Microphone Breakout is a compact and efficient audio capture solution designed for seamless integration with various chipsets. Featuring a JST SH connector, it offers high-speed data processing and user-friendly libraries, making it ideal for both novice and experienced developers looking to enhance their projects with superior sound quality.

## Description

An exotic new microphone has arrived in the Adafruit shop, a PDM MEMS Microphone! PDM is the 'third' kind of microphone you can integrate with electronics, apart from analog or I2S. These microphones are very commonly used in products, but are rarely seen in maker projects. Still, they have some benefits so we thought we'd offer a breakout for the shop. The first thing to note is that this sensor does not provide an 'analog' output like many of our electret microphone assemblies. So it's great for chips that do not have analog inputs. Secondly, the digital interface is a very simplistic pulse density modulation output. It's digital but its not PWM and it's not I2S. You will need to make sure your chip has a PDM interface - most 32-bit processors these days do! PDM is a little like 1-bit PWM. You clock the mic with a 1 MHz - 3 MHz clock rate, and on the data line you'll get a square wave out that syncs with the clock. The data line with be 0 or 1 logic output, with the square wave creating a density that when averaged will result in the analog value out. There's a few ways to manage these mics: Your chip comes with a hardware peripheral and library that does all the data managing at high speed, collects samples, applies a filter and gives you an analog value (The nRF52840 is like this and it is ideal!) Your chip comes with a hardware peripheral that gives you values, then it is up to you to perform the decimation/filtering. (We have some example code for this on the ATSAMD21 chipset) Your chip does not come with a hardware peripheral but you're pretty clever and come up with a way to make it work using SPI (See this example for the ATtiny85) You generate the high speed clock, then add an analog filter on the data line, and read the analog value (A hack, but works!)

## Features

- Your chip comes with a hardware peripheral and library that does all the data managing at high speed, collects samples, applies a filter and gives you an analog value (The nRF52840 is like this and it is ideal!)
- Your chip comes with a hardware peripheral that gives you values, then it is up to you to perform the decimation/filtering. (We have some example code for this on the ATSAMD21 chipset)
- Your chip does not come with a hardware peripheral but you're pretty clever and come up with a way to make it work using SPI (See this example for the ATtiny85)

## Images

![Adafruit 4346 PDM Microphone Breakout with JST SH Connector - Image 1](https://m.media-amazon.com/images/I/615xATLAZVL.jpg)

## Customer Reviews

### ⭐⭐⭐ 3.0 out of 5 stars







  
  
    so-so audio quality
  

*by A***R on Reviewed in the United States on March 21, 2024*

Fun to tinker with but the audio quality is not great.My use case was for an audio classifier, but the audio quality reduced prediction accuracy

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-20*