2 layers80 × 20.3 mm
Pmod microphone array 2x1
MarcinWachowiak/pmod-pdm-microphone-array
Pmod module with multiple PDM microphones to enable array audio signal processing
9 parts9
2 layers80 × 80 mm
Pmod microphone array 2x2
MarcinWachowiak/pmod-pdm-microphone-array9Pmod module with multiple PDM microphones to enable array audio signal processing
- Size
- 80 × 80 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 15
- Nets
- 10
- Pads
- 50
- Tracks, vias
- 74, 12
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 1 May 2021
- Updated
- 29 Oct 2022
Overview
Pmod microphone array 2x2 is an open-source printed circuit board by MarcinWachowiak, from the MarcinWachowiak/pmod-pdm-microphone-array repository on GitHub. It is a 2-layer board of 80 × 80 mm with 15 parts on 10 nets, routed with 74 tracks and 12 vias.
It is built around the IM69D130V01XTSA1. Its parts include 5 resistors, 4 capacitors, 1 diode and 1 connector. It belongs with the audio and music boards of this library.
Main components
1README
README.mdPmod PDM microphone array
Pmod module with multiple PDM microphones to enable array audio signal processing. Microphones are arranged in a linear array with a spacing of λ/2 at 3 kHz. The Pmod interface enables easy and straightforward evaluation with popular FPGA development boards. Used IM69D130 microphones have matched phase response (±2°) and small sensitivity tolerance (±1dB).
-
Manufactured prototypes
Available configurations:
-
2x1
-
4x1
-
2x2
Parts
15| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100 | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R5 |
| 4 | 100n/16V | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4 |
| 4 | IM69D130V01XTSA1 | pmod_microphone_array:IM69D130V01XTSA1 | MK1, MK2, MK3, MK4 |
| 1 | 61300611021 | pmod_microphone_array:61300611021 | J1 |
| 1 | GREEN | LED_SMD:LED_0603_1608Metric | D1 |
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Questions
How big is the Pmod microphone array 2x2 PCB?
It measures 80 × 80 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pmod microphone array 2x2 use?
15 parts, built around the IM69D130V01XTSA1. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Pmod microphone array 2x2 KiCad files?
From the MarcinWachowiak/pmod-pdm-microphone-array repository on GitHub, at the commit this page was made from: the board is pmod_microphone_array_2x2/pmod_microphone_array_2x2.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pmod microphone array 2x2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask MarcinWachowiak before reusing the design.