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Stereo amp module

copperWhispers·stereo-amp-module·hardware/STEREO_AMP_MODULE_V1.kicad_pcb

Stereo amp module layout, top view — open source board by copperWhispers
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About the Stereo amp module

Stereo amp module is an open source PCB design by copperWhispers, published on GitHub under the Custom license license. It is a 2-layer board measuring 65.2 × 45.2 mm, with 61 components from 14 distinct parts.

Other key parts include the TPA3116D2DADR. By type, the board carries 29 capacitors, 9 resistors, 4 inductors and 1 IC.

It belongs with the audio and test & measurement designs in this gallery.

From the project

Open-source TPA3116D2 class-D stereo amplifier. KiCad source, gerbers, BOM, and the bench measurements.

An open-source stereo class-D amplifier board built around the TI TPA3116D2. Full KiCad source, gerbers, and a BOM. Link to TPA3116D2 Part: https://www.ti.com/lit/ds/symlink/tpa3118d2.pdf?ts=1788008862639&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FTPA3118D2 This is an interesting part with many different configurations which can handle 4 ohms and 8 ohms Stereo Speakers at various Power ratings:

Stereo amp module, from the project README
From the project README

Main components on the Stereo amp module

TPA3116D2DADR

Stereo amp module bill of materials (BOM)

61 components, 14 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TPA3116D2DADR
U1
18
~
Through_Hole_Pad1, Through_Hole_Pad2, Through_Hole_Pad3, Through_Hole_Pad4, Through_Hole_Pad5, Through_Hole_Pad6, Through_Hole_Pad7, Through_Hole_Pad8 +10
4
11UH
11u
L1, L2, L3, L4
5
10NF
10n
C14, C36, C37, C38, C43
2
10UF
10u
C15, C16
3
1UF
1u
C17, C18, C19
3
100NF
100n
C20, C22, C29
6
1NF
1n
C21, C28, C39, C40, C41, C42
2
220UF
220u
C23, C30
4
220NF
220n
C24, C25, C26, C27
4
1.5UF
1.4u
C32, C33, C34, C35
1
20K
20k
R24
3
100K
100k
R25, R26, R27
5
3.3R
3.3
R28, R29, R30, R31, R32

Stereo amp module design files

The KiCad project lives in the copperWhispers/stereo-amp-module repository on GitHub; these links point at the commit this page was built from.

Stereo amp module: common questions

How big is the Stereo amp module?

The Stereo amp module measures 65.2 × 45.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Stereo amp module?

61 components, from 14 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Stereo amp module design files?

From the copperWhispers/stereo-amp-module repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Stereo amp module design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

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