Audio amplifier
About the Audio amplifier PCB
Audio amplifier is an open source PCB design by Aedan64, published on GitHub. It is a board, with 44 components from 23 distinct parts.
Other key parts include the TPA3110D2PWP. By type, the board carries 21 capacitors, 9 resistors, 4 connectors, 4 inductors, 1 IC and 1 transistor.
It belongs with the audio and power & battery designs in this gallery.
From the project
Class D amplifier circuit designed using the TPA3110d2, with stereo 4ohm speaker configuration in mind. Schematic design, pcb design, and final construction will all be a part of this project.
A custom stereo Class-D audio amplifier based on the Texas Instruments TPA3110D2 amplifier IC. The board is intended to power two 4-ohm automotive speakers as a desktop audio system.
- Stereo audio output - Approximately 15 W per channel into 4-ohm speakers - 3.5 mm stereo audio input - External DC power input - LC output filters - Adjustable or fixed amplifier gain - Power-limit configuration - Input and power-supply protection - Compact PCB suitable for a desktop speaker enclosure
Main components on the Audio amplifier
Audio amplifier bill of materials (BOM)
44 components, 23 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPA3110D2PWP | PWP28_6P17X2P4 | U1 |
| 1 | Q_PMOS_GDS | TO-220-3_Vertical | Q1 |
| 1 | AudioJack3 | SJ1-3523N_CUD | J1 |
| 1 | +12V 5A regulated power supply | CONN_1729128_PXC | J2 |
| 1 | RIGHT_4ohm-SPEAKER | CONN_1729128_PXC | J3 |
| 1 | LEFT_4ohm_SPEAKER | CONN_1729128_PXC | J4 |
| 1 | 4A time delay | FUSRR508W60L840T400H810B | F1 |
| 1 | A10k | PDB-182-K_20K_BRN | RV1 |
| 1 | SW_SPDT | SPDT_OS102011_CNK | SW1 |
| 1 | D_Zener | D_DO-35_SOD27_P10.16mm_Horizontal | D1 |
| 4 | 15uH | L_Wurth_WE-FAMI-8010_LeadDiameter0.5mm | L1, L2, L3, L4 |
| 4 | 0.22uF | C_0805_2012Metric | C1, C4, C13, C14 |
| 4 | 2.2uF | CAP_C322C_MR_X7R_KEM | C2, C3, C20, C21 |
| 2 | 0.1uF | C_0805_2012Metric | C5, C7 |
| 2 | 1000pF | C_0805_2012Metric | C6, C8 |
| 5 | 1uF | C_Rect_L7.2mm_W5.0mm_P5.00mm | C9, C10, C15, C16, C17 |
| 2 | 1uF | C_1206_3216Metric | C11, C12 |
| 2 | 220uF | CP_Radial_D8.0mm_P5.00mm | C18, C19 |
| 2 | 100k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2 |
| 3 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3, R4, R6 |
Show 3 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 10 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5 |
| 2 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7, R12 |
| 1 | 13k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R11 |
Audio amplifier design files
The KiCad project lives in the Aedan64/audio_amplifier repository on GitHub; these links point at the commit this page was built from.
- SchematicAudio Amplifier.kicad_sch
Audio amplifier: common questions
How many components are on the Audio amplifier?
44 components, from 23 distinct parts. The full bill of materials is listed on this page.
Where can I download the Audio amplifier design files?
From the Aedan64/audio_amplifier repository on GitHub, which has the schematic; the links under Design files point to each one.
Can I use the Audio amplifier design in my own project?
The repository has no license, so all rights stay with Aedan64. Use it as a reference, and ask the author before reusing the design.
Similar boards
Stack chan
stack-chan
50 × 50 mm33 parts2LApache-2.01.7k
Display Carrier
AxxAxx
35.6 × 58.2 mm5 parts2LGPL-3.01.7k
KLOR
GEIGEIGEIST
160.2 × 118.3 mm79 parts2LGPL-3.01.2k
ControllerCurrentShuntAddOn
stuartpittaway
26 × 16.9 mm9 parts2LCC-BY-NC-4.01.1k
Module 16S PassiveBalanceAddOn
61 × 74 mm86 parts2LCC-BY-NC-4.01.1k
TemperaturePCB PANEL
116 × 75.5 mm178 parts2LCC-BY-NC-4.01.1k