Features
- PCM5102 I2S DAC
- 112dB SNR
- -93 dB THD
- 384kHz PCM
- TPA6130A2
- 138-mW output power
- >100dB PSRR
- 68 dB CMRR
- I2C Bus Control
- 0.96inch 160x80 color tft display
- 80x160 Pixels
- 4-Wire SPI
- ST7735S
- RGB 65K
- 500:1
- 300cd/m2
System Description

An tiny cool headphone amp with TFT base on RP2040
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usb_sound_card.uf2RP2040 firmware. Audio works. Two buttons and display not work yet.uf2 - 79.00 kB - 12/21/2023 at 01:27 |
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3D Model HeadphoneAMP.zip3D Stepx-zip-compressed - 11.83 MB - 12/20/2023 at 03:36 |
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BOM_WP-2040T_HeadphoneAMP_WP-2040T_HeadphoneAMP_2023-12-19.xlsxBOMsheet - 9.85 kB - 12/20/2023 at 03:35 |
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PCB_WP-2040T_HeadphoneAMP_2023-12-20.pdfPCB_pdfAdobe Portable Document Format - 449.86 kB - 12/20/2023 at 03:34 |
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Gerber_WP-2040T_HeadphoneAMP_2023-12-20.zipPCB_gerberx-zip-compressed - 80.29 kB - 12/20/2023 at 03:34 |
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This one is based on the rp2040 sdk, I just added the code for the TPA6130A2, the volume and screen part is not done yet. Uploaded the audio part of the firmware first, the code is being reorganized.
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impressive design
you have the code for rpi on github?