Class-D-Audio-Amplifier

Loredati-svg·Class-D-Audio-Amplifier·KiCad_Project/Audio_Amp_BT/Audio_Amp_v1.kicad_pcb

Class-D-Audio-Amplifier PCB layout, top view — open source board by Loredati-svg

About the Class-D-Audio-Amplifier PCB

Class-D-Audio-Amplifier is an open source PCB design by Loredati-svg, published on GitHub. It is a 2-layer board measuring 93.5 × 52.8 mm, with 69 components from 28 distinct parts.

Other key parts include the TPA3116D2DAD, BM64SPKS1MC2-0002AA and LMR33630BDDA. By type, the board carries 38 capacitors, 16 resistors, 5 inductors, 4 connectors, 3 ICs and 1 diode.

It belongs with the audio and iot & wireless designs in this gallery.

From the project

A complete, fully engineered Open-Source Hardware project developed in **KiCad 8.0** for building a high-fidelity **Class-D** stereo audio amplifier featuring an integrated **Bluetooth 5.0 HD** receiver and I2S DAC.

An open-source stereo Class-D audio amplifier with a USB-C digital input, analog bass / treble tone control and a volume knob, built around the Texas Instruments TPA3116D2 and designed in KiCad 10.0.

Plug a phone or a PC into the USB-C port: the board shows up as a standard USB sound card (no drivers needed) and drives a pair of passive bookshelf speakers (4–8 Ω) from a single 24 V DC supply.

Main components on the Class-D-Audio-Amplifier

TPA3116D2DADBM64SPKS1MC2-0002AALMR33630BDDA

Class-D-Audio-Amplifier bill of materials (BOM)

69 components, 28 distinct parts.

Qty	Part	Footprint	Refs
1	TPA3116D2DAD	SOP65P810X120-32N	IC2
1	BM64SPKS1MC2-0002AA	BM64SPKS1MC20002AA	IC3
1	LMR33630BDDA LMR33630ADDA	SOIC127P600X170-9N	IC4
1	TS-103-T-A	SAMTEC_TS-103-T-A	J1
2	1729128	1729128	J2, J3
1	PJ-102AH	PJ-102AH	J4
1	220n	C_0805_2012Metric	CHF1
1	10u	C_1206_3216Metric	CIN1
1	LED	D_0805_2012Metric	D1
4	10u	INDPM8479X720N	L1, L2, L3, L4
1	IHLP2525CZER6R8M8A	INDPM6965X300N	L5
7	1u	C_0603_1608Metric	C1, C2, C3, C4, C5, C30, C43
5	10n	C_0603_1608Metric	C6, C22, C23, C28, C29
3	100n	C_0603_1608Metric	C7, C31, C64
2	1n	C_0805_2012Metric	C8, C15
2	100n	C_0805_2012Metric	C9, C16
2	220u	EEHZT1E561UV	C10, C17
4	220n	C_0805_2012Metric	C11, C12, C13, C14
4	680n	C_1206_3216Metric	C18, C19, C24, C25
4	1n	C_0603_1608Metric	C20, C21, C26, C27

Show 8 more

Qty	Part	Footprint	Refs
1	0.1u	C_0603_1608Metric	C44
4	22u	C_0805_2012Metric	C46, C47, C48, C49
4	100k	R_0603_1608Metric	R1, R3, R4, R17
1	20k	R_0603_1608Metric	R2
5	3.3R	R_1206_3216Metric	R5, R6, R7, R8, R9
4	10k	R_0603_1608Metric	R10, R11, R12, R13
1	330	R_0603_1608Metric	R16
1	43.2k	R_0603_1608Metric	R20

Class-D-Audio-Amplifier design files

The KiCad project lives in the Loredati-svg/Class-D-Audio-Amplifier repository on GitHub; these links point at the commit this page was built from.

Class-D-Audio-Amplifier: common questions

How big is the Class-D-Audio-Amplifier PCB?

The Class-D-Audio-Amplifier measures 93.5 × 52.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Class-D-Audio-Amplifier?

69 components, from 28 distinct parts. The full bill of materials is listed on this page.

Where can I download the Class-D-Audio-Amplifier design files?

From the Loredati-svg/Class-D-Audio-Amplifier repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Class-D-Audio-Amplifier design in my own project?

The repository has no license, so all rights stay with Loredati-svg. Use it as a reference, and ask the author before reusing the design.

Similar boards