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Audio latency tester board
Audio latency processing board that allows driving an external speaker and collecting audio samples from a pair of PDM or I2S microphones.
See on GitHub Read more on Open Source portal
KiCad Project (zip) 3.19 MB
Schematic PDF 1.15 MB
STEP model 7.35 MB
2x RP2040 MCU
MAX98357A, I2S Class D Amplifier
32Mb SerialRAM for playback sample buffering
Various I/O configurations for trigger signals
Image | Manufacturer | Manufacturer part number | Description | Data available |
|---|---|---|---|---|
Name | Type | Material | Thickness[mm] | Constant |
|---|---|---|---|---|
F.Mask | Top Solder Mask | 0.01 | ||
F.Cu | copper | 0.035 | ||
dielectric 1 | prepreg | FR4 | 0.12 | 4.5 |
In1.Cu | copper | 0.035 | ||
dielectric 2 | core | FR4 | 1.2 | 4.5 |
In2.Cu | copper | 0.035 | ||
dielectric 3 | prepreg | FR4 | 0.12 | 4.5 |
B.Cu | copper | 0.035 | ||
B.Mask | Bottom Solder Mask | 0.01 |
Scale [mm]
0 10
Audio latency tester board