Zerophone audio buffer
About the Zerophone audio buffer PCB
Zerophone audio buffer is an open source PCB design by libresmartphone, published on GitHub. It is a 2-layer board measuring 13.2 × 10.7 mm, with 5 components from 5 distinct parts.
Other key parts include the OMAP3530DCBB and TPS65950BZXNR. By type, the board carries 2 ICs, 2 connectors and 1 capacitor.
It belongs with the audio and displays & leds designs in this gallery.
From the project
This page contains the software used in the open hardware smartphone (libresmartphone)
This is gamma version. It's WIP and is going to be sent to production soon (as soon as last TODOs are finished). You can already order this board, but it's possible the I2C GPIO expander pin mapping is going to change. Also, before ordering, please make sure the Gerber files are recent (if they're up-to-date after latest commits concerning PCB files) and regenerate them if necessary.
Main components on the Zerophone audio buffer
Zerophone audio buffer bill of materials (BOM)
5 components, 5 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | OMAP3530DCBB LM1117-2.5 Texas Instruments Inc. | SOT-223 | U1 |
| 1 | TPS65950BZXNR NC7WZ16 Texas Instruments Inc. | SOT-363_SC-70-6 | U2 |
| 1 | INPUT_CONN | Pin_Header_Straight_1x03_Pitch2.54mm | P1 |
| 1 | OUTPUT_CONN | Pin_Header_Straight_1x04_Pitch2.54mm | P2 |
| 1 | C_Small | C_0805_HandSoldering | C1 |
Zerophone audio buffer design files
The KiCad project lives in the libresmartphone/libresmartphone repository on GitHub; these links point at the commit this page was built from.
Zerophone audio buffer: common questions
How big is the Zerophone audio buffer PCB?
The Zerophone audio buffer measures 13.2 × 10.7 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Zerophone audio buffer?
5 components, from 5 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Zerophone audio buffer design files?
From the libresmartphone/libresmartphone repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Zerophone audio buffer design in my own project?
The repository has no license, so all rights stay with libresmartphone. Use it as a reference, and ask the author before reusing the design.
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