2 layers
2 layers75.5 × 62.5 mm
Headphone dac
fsodari/ProtoDAC10USB Audio DAC
- Size
- 75.5 × 62.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 69
- Nets
- 100
- Pads
- 336
- Tracks, vias
- 355, 67
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 3 Sep 2023
- Updated
- 29 Jun 2025
Overview
Headphone dac is an open-source printed circuit board by fsodari, from the fsodari/ProtoDAC repository on GitHub, published under the AGPL-3.0 licence. It is a 2-layer board of 75.5 × 62.5 mm with 69 parts on 100 nets, routed with 355 tracks and 67 vias.
It is built around the CY8C5888LTI-LP097, TPA6139A2PW and CS4344. Its parts include 36 capacitors, 10 resistors, 4 ICs, 4 connectors and 3 switches. It belongs with the audio and music boards of this library.
Main components
3
CY8C5888LTI-LP097
QFN-68-EP(8x8)-40℃~+85℃ 1.71V~5.5V 12bit、20bit 256KB 2KB 32 Bit 38 64KB 80MHz 8bit ARM Cortex-M3 Built-in FLASH Power-on reset (POR)、Undervoltage detection (BOR/LVD/LVR/LVI)、Software reset、External pin reset (NRST)、Built-in general-purpose timer、Hardware CRC、Built-in temperature sensor、Hardware ECC check QFN-68(8x8) Microcontrollers (MCU/MPU/SOC) ROHSInfineon TechnologiesMicrocontrollers (MCU/MPU/SOC)
TPA6139A2PW
TSSOP-14-40℃~+85℃ 0.005% 105dB 2 Single-Ended Inputs 2-Channel 25mA 25mWx2@32Ω 3V~3.6V 80dB TSSOP-14 Audio Amplifiers ROHSTexas InstrumentsAudio Amplifiers
CS4344
TSSOP-10- New Arrivals ROHSCirrus LogicUncategorised
README
pcb/headphone_dac/README.mdheadphone_dac_proto
Prototype USB DAC to test a Cypress PSoC 5lp as a USB to I2S Bridge, and analog output amplifier
Parts
69| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C5, C6, C9, C10, C11, C12, C13, C14, C20, C22 |
| 10 | 1uF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4, C27, C32, C33, C34, C35, C36 |
| 5 | 3.3uF | Capacitor_SMD:C_0805_2012Metric | C24, C25, C26, C30, C31 |
| 4 | 15pF | Capacitor_SMD:C_0603_1608Metric | C7, C8, C18, C19 |
| 4 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C15, C16, C17, C21 |
| 3 | 100k | Potentiometer_THT:Potentiometer_Bourns_PTV09A-1_Single_Vertical | RV1, RV2, RV3 |
| 3 | ~ | Fiducial:Fiducial_0.5mm_Mask1.5mm | FID1, FID2, FID3 |
| 3 | ~ | Button_Switch_THT:SW_PUSH_6mm_H13mm | SW1, SW2, SW3 |
| 3 | ~ | MountingHole:MountingHole_3mm_Pad | H2, H3, H4 |
| 2 | 10k | Resistor_SMD:R_0603_1608Metric | R6, R7 |
| 2 | 2.7nF | Capacitor_SMD:C_0603_1608Metric | C28, C29 |
| 2 | 27 | Resistor_SMD:R_0603_1608Metric | R2, R3 |
| 2 | 470 | Resistor_SMD:R_0603_1608Metric | R8, R9 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C23 |
| 1 | 12.288MHz | Crystal:Crystal_SMD_Abracon_ABM3B-4Pin_5.0x3.2mm | Y1 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 33.2k | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 82k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P15.24mm_Horizontal | R10 |
| 1 | Bluetooth | Connector_PinHeader_2.54mm:PinHeader_2x10_P2.54mm_Vertical | J2 |
| 1 | CS4344 | Package_SO:TSSOP-10_3x3mm_P0.5mm | U3 |
| 1 | CY8C5888LTI-LP097 | Package_DFN_QFN:QFN-68-1EP_8x8mm_P0.4mm_EP5.2x5.2mm_ThermalVias | U2 |
| 1 | Conn_01x05_Male | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J3 |
| 1 | Headphones | Connector_Audio:Jack_3.5mm_CUI_SJ1-3535NG_Horizontal | J6 |
| 1 | LT3042xMSE | Package_SO:MSOP-10-1EP_3x3mm_P0.5mm_EP1.68x1.88mm_ThermalVias | U1 |
| 1 | R | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | TPA6139A2 | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U4 |
| 1 | USB_B_Mini | Connector_USB:USB_Mini-B_Wuerth_65100516121_Horizontal | J1 |
| 1 | ~ | Inductor_SMD:L_0603_1608Metric | FB1 |
| 1 | ~ | MountingHole:MountingHole_3mm_Pad_Via | H1 |
Questions
How big is the Headphone dac PCB?
It measures 75.5 × 62.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Headphone dac use?
69 parts, built around the CY8C5888LTI-LP097, TPA6139A2PW and CS4344. 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 Headphone dac KiCad files?
From the fsodari/ProtoDAC repository on GitHub, at the commit this page was made from: the board is pcb/headphone_dac/headphone_dac.kicad_pcb and its schematic pcb/headphone_dac/headphone_dac.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Headphone dac design in my own project?
Its repository publishes it under the AGPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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