2 layers153 × 95.8 mm
Spekky Matrix
jc-SpaceXp/Spekky-Matrix
Spectrum analyser displayed on a LED matrix board connected to a STM32 device
390 parts1MIT
2 layers54 × 75 mm
PCB for a high quality MP3 player
- Size
- 54 × 75 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 54
- Nets
- 64
- Pads
- 214
- Tracks, vias
- 464, 108
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 5 (file 20210108)
- Created
- 6 Jan 2021
- Updated
- 14 Jan 2021
Overview
Mp3 is an open-source printed circuit board by LailaTheElf, from the LailaTheElf/mp3_pcb repository on GitHub. It is a 2-layer board of 54 × 75 mm with 54 parts on 64 nets, routed with 464 tracks and 108 vias.
It is built around the STM32G431K8T6, LM2596S-3.3 and PCM5102PW. Its parts include 20 capacitors, 6 resistors, 5 ICs, 5 connectors and 2 crystals. It belongs with the STM32 boards of this library.
Main components
3
STM32G431K8T6
LQFP-32(7x7)1.71V~3.6V 12bit 12bit 170MHz 26 64KB ARM Cortex-M Series FLASH LQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
LM2596S-3.3
TO-263-5L-20℃~+70℃ 1 170kHz 2mA 3.3V 3A 4.5V~40V Buck Buck Built-in Fixed No TO-263-5L DC-DC Converters ROHSGRDC-DC Converters
PCM5102PW
TSSOP-20-25℃~+85℃ 1 3V~3.6V Digital filtering、Power-down mode I2S TSSOP-20 ADCs/DACs - Special Purpose ROHSTexas InstrumentsADCs/DACs - Special Purpose
README
README.mdANE10 PCB 2 - MP3 Speler
This is work in progress!
A MP3 player with a ethernet interface.
interface
Work in progress.
voeding
Thare a two power supplies on the board. One for het analog circuitry and one for the part. Thes power rails are isolated. If you want to use two separate power supplies to improve audio quality you can.
Both power supplies don't have to be regulated and support a range of 10 to 30 V.
housing
Work in progress.
The idea is to make a sort of rack to 'click' it in as a card, that's why there is a weird cutout on the board.
Parts
54| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP1, TP2, TP3, TP4, TP6, TP7, TP8, TP9, TP10, TP11, TP12 |
| 4 | 10u | Capacitor_SMD:C_0805_2012Metric | C6, C8, C13, C19 |
| 4 | 1u | Capacitor_SMD:C_0603_1608Metric | C7, C11, C12, C20 |
| 4 | 470R | Resistor_SMD:R_0805_2012Metric | R2, R3, R5, R6 |
| 4 | C | Capacitor_SMD:C_0805_2012Metric | C1, C2, C17, C18 |
| 2 | 10n | Capacitor_SMD:C_0805_2012Metric | C9, C10 |
| 2 | 10u@35v | Capacitor_SMD:C_1206_3216Metric | C3, C5 |
| 2 | 2u2 | Capacitor_SMD:C_0805_2012Metric | C14, C15 |
| 2 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2 |
| 2 | R | Resistor_SMD:R_0805_2012Metric | R1, R4 |
| 1 | 100n | Capacitor_SMD:C_0805_2012Metric | C16 |
| 1 | 2.5mm Jack | Connector_Audio:Jack_3.5mm_CUI_SJ1-3533NG_Horizontal | J4 |
| 1 | 220u | Capacitor_SMD:C_1206_3216Metric | C4 |
| 1 | 22u | Inductor_SMD:L_12x12mm_H8mm | L1 |
| 1 | 24V in | Connector_Molex:Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical | J2 |
| 1 | 25MHz | Crystal:Crystal_HC49-4H_Vertical | Y2 |
| 1 | 40V | Diode_SMD:D_SOD-123F | D1 |
| 1 | 8MHz | Crystal:Crystal_HC49-4H_Vertical | Y1 |
| 1 | Analog power | Connector_Molex:Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical | J3 |
| 1 | ENC28J60x-SS | Package_SO:SSOP-28_5.3x10.2mm_P0.65mm | U5 |
| 1 | LD1086DT33TR | Package_TO_SOT_SMD:TO-252-2 | U3 |
| 1 | LM2596S-3.3 | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U1 |
| 1 | Micro_SD_Card | SDCards:microSD_HC_Hirose_DM3D-SF | J5 |
| 1 | PCM5102 | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U4 |
| 1 | RJ45_Bel_SI-60062-F | Connector_RJ:RJ45_Bel_SI-60062-F | J6 |
| 1 | STM32G431K8T6 | Package_QFP:LQFP-32_7x7mm_P0.8mm | U2 |
| 1 | SW_SPDT | Button_Switch_THT:SW_E-Switch_EG1224_SPDT_Angled | SW1 |
Questions
How big is the Mp3 PCB?
It measures 54 × 75 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Mp3 use?
54 parts, built around the STM32G431K8T6, LM2596S-3.3 and PCM5102PW. 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 Mp3 KiCad files?
From the LailaTheElf/mp3_pcb repository on GitHub, at the commit this page was made from: the board is mp3.kicad_pcb and its schematic mp3.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mp3 design in my own project?
Its repository states no licence, so its author keeps all rights: ask LailaTheElf before reusing the design.
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