PCM2900C
About the PCM2900C PCB
PCM2900C is an open source PCB design by Envious-Data, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 22 × 40.6 mm, with 28 components from 13 distinct parts.
Other key parts include the PAM8302AAD and PCM2900C. By type, the board carries 15 capacitors, 4 resistors, 3 ICs, 3 connectors, 1 crystal and 1 diode.
It belongs with the audio designs in this gallery.
From the project
An open source headphone/PC speaker project utilizing the RP2040, UDA1334A and TPA2016
These board schematics are from adafruit, Ive imported them into KiCad and swapped the footprints to KiCad version, I will be attempting to make these boards smaller as well as removing some stuff I wont use but the good thing about this is if you want you can build this project out of such parts you can buy from adafruit or equivilent shops minus the 3d printed housings.
Main components on the PCM2900C
PCM2900C bill of materials (BOM)
28 components, 13 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | PAM8302AAD | Diodes_SO-8EP | U1, U2 |
| 1 | PCM2900C | SSOP-28_5.3x10.2mm_P0.65mm | U101 |
| 1 | 12MHz 18pF | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 2 | Conn_01x02 | TerminalBlock_Phoenix_MPT-0,5-2-2.54_1x02_P2.54mm_Horizontal | J1, J2 |
| 1 | USB_C_Receptacle_USB2.0 | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J101 |
| 1 | SolderJumper_2_Bridged | SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | STAR2 |
| 1 | PRTR5V0U2X | SOT-143 | D1 |
| 5 | 10µF | C_0402_1005Metric | C1, C3, C6, C7, C8 |
| 8 | 1µF | C_0402_1005Metric | C2, C4, C9, C10, C11, C12, C13, C14 |
| 2 | 22pF | C_0402_1005Metric | C15, C16 |
| 1 | 1M | R_0402_1005Metric | R1 |
| 1 | 2R2 | R_0402_1005Metric | R2 |
| 2 | 5.1K 0805 | R_0402_1005Metric | R101, R102 |
PCM2900C design files
The KiCad project lives in the Envious-Data/EnvOpenAudio repository on GitHub; these links point at the commit this page was built from.
PCM2900C: common questions
How big is the PCM2900C PCB?
The PCM2900C measures 22 × 40.6 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the PCM2900C?
28 components, from 13 distinct parts. The full bill of materials is listed on this page.
Where can I download the PCM2900C design files?
From the Envious-Data/EnvOpenAudio repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the PCM2900C design in my own project?
Yes, under the terms of its GPL-3.0 license, which Envious-Data chose for the repository.
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