8 layers120 × 100 mm
4 layers27.9 × 44.5 mm
Audio Module
synthesissolutions/geeksforkids2- Size
- 27.9 × 44.5 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 36
- Nets
- 21
- Pads
- 152
- Tracks, vias
- 115, 150
- Pours
- 78
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 18 May 2019
- Updated
- 6 Sep 2026
Overview
Audio Module is an open-source printed circuit board by synthesissolutions, from the synthesissolutions/geeksforkids repository on GitHub. It is a 4-layer board of 27.9 × 44.5 mm with 36 parts on 21 nets, routed with 115 tracks and 150 vias.
It is built around the TPA3110D2PWP, RC0402FR-100KL and CC0402KRX7R9BB102, with the 0402WGF0000, GRM155R61H105KE05 and M2.5 among its other parts. Its parts include 15 capacitors, 10 resistors, 5 connectors and 1 IC. It belongs with the audio and music boards of this library.
Main components
12
TPA3110D2PWP
HTSSOP-28-EP-40℃~+85℃ -70dB 0.1% 102dB 15Wx2@8Ω 2-Channel 50mA 8V~26V 90% Automatic mute/no-noise switch、Filterless architecture、Digitally programmable gain Class D HTSSOP-28-EP Audio Amplifiers ROHSTexas InstrumentsAudio Amplifiers
RC0402FR-100KL
0402-55℃~+155℃ 100kΩ 50V 62.5mW Thick Film Resistor ±1% ±100ppm/℃ 0402 Chip Resistor - Surface Mount ROHSYAGEOChip Resistor - Surface Mount
CC0402KRX7R9BB102
04021nF 50V X7R ±10% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSYAGEOMultilayer Ceramic Capacitors MLCC - SMD/SMT0402WGF0000
0402-55℃~+155℃ 0Ω 50V 62.5mW Thick Film Resistor ±1% ±800ppm/℃ 0402 Chip Resistor - Surface Mount ROHSUNI-ROYALChip Resistor - Surface MountGRM155R61H105KE05
04021uF 50V X5R ±10% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSMurataMultilayer Ceramic Capacitors MLCC - SMD/SMTM2.5
-0.45mm 2.5mm 2mm 5mm DIN934 Hex M2.5X0.45 Nickel plated Silver white - Hexagonal nutsShuntianHex NutGRM155R61H474KE11
0402470nF 50V X5R ±10% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSMurataMultilayer Ceramic Capacitors MLCC - SMD/SMTCC0402KRX5R6BB684
040210V 680nF X5R ±10% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSYAGEOMultilayer Ceramic Capacitors MLCC - SMD/SMTCC0402KRX5R9BB104
0402100nF 50V X5R ±10% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSYAGEOMultilayer Ceramic Capacitors MLCC - SMD/SMT
ERS1HM101F12OT
插件,D8xL12mm100uF 12mm 3.5mm 50V 7000hrs@105℃ 8mm ±20% 插件,D8xL12mm Aluminum Electrolytic Capacitors - Leaded ROHSAISHIAluminum Electrolytic Capacitors - Leaded
YI321611Z121-6R0T
1206-40℃~+125℃ 1 120Ω@100MHz 20mΩ 6A ±25% 1206 Ferrite Beads ROHSYJYCOINFerrite Beads
B2B-XH-A(LF)(SN)
插件,P=2.5mm-25℃~+85℃ 1 1x2P 2 2.5mm 250V 2P 3A 5.75mm 7.4mm 7mm Brass K Pin PA66 Through Hole Tin UL94V-0 White XH 插件,P=2.5mm Wire To Board Connector ROHSJSTWire To Board Connector
README
README.mdgeeksforkids
car_firmware - Code for RC/Joytick controlled cars
Parts
36| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100k | Resistor_SMD:R_0402_1005Metric | R2, R3, R4, R5, R10 |
| 4 | 1nF | Capacitor_SMD:C_0402_1005Metric | C3, C7, C9, C10 |
| 3 | 0 | Resistor_SMD:R_0402_1005Metric | R7, R8, R9 |
| 3 | 1uF | Capacitor_SMD:C_0402_1005Metric | C4, C14, C15 |
| 3 | M2.5 | MountingHole:MountingHole_2.7mm_M2.5_Pad_Via | H1, H2, H3 |
| 2 | 0.47uF | Capacitor_SMD:C_0402_1005Metric | C8, C13 |
| 2 | 0.68uF | Capacitor_SMD:C_0402_1005Metric | C11, C12 |
| 2 | 100nF | Capacitor_SMD:C_0402_1005Metric | C2, C6 |
| 2 | 100uF | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C1, C5 |
| 2 | 120Ohm@100MHz | Inductor_SMD:L_1206_3216Metric | FB1, FB2 |
| 2 | 2.54mm | Connector_JST:JST_XH_B2B-XH-AM_1x02_P2.50mm_Vertical | J2, J5 |
| 2 | 5.08mm | Brushed_DC_Motor_Driver_Parts:CUI_TB004-508-02BE | J1, J4 |
| 1 | 10R | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 1k | Resistor_SMD:R_0402_1005Metric | R6 |
| 1 | 3.5mm | Connector_Audio:Jack_3.5mm_KoreanHropartsElec_PJ-320D-4A_Horizontal | J3 |
| 1 | TPA3110D2 | Package_SO:HTSSOP-28-1EP_4.4x9.7mm_P0.65mm_EP3.4x9.5mm_Mask2.4x6.17mm_ThermalVias | U1 |
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Questions
How big is the Audio Module PCB?
It measures 27.9 × 44.5 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Audio Module use?
36 parts, built around the TPA3110D2PWP, RC0402FR-100KL, CC0402KRX7R9BB102 and 0402WGF0000. 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 Audio Module KiCad files?
From the synthesissolutions/geeksforkids repository on GitHub, at the commit this page was made from: the board is hardware/Evaluation and Test Boards/Audio_Module/Audio_Module.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Audio Module design in my own project?
Its repository states no licence, so its author keeps all rights: ask synthesissolutions before reusing the design.