
GR ESP32-A1S
GadgetReboot/ESP32-A1S
Breakout PCB for the ESP32-A1S module including an audio amp and basic GPIO headers, USB interface

Simple board with DAC cs4335 and amplifier TDA2822
Simple headphones dac is an open-source printed circuit board by SL-RU, from the SL-RU/simple_headphones_dac repository on GitHub. It is a 2-layer board of 70.9 × 25.1 mm with 26 parts on 25 nets, routed with 143 tracks and 0 vias.
It is built around the CS4335-KSZ and TDA2822D. Its parts include 13 capacitors, 8 resistors, 3 ICs and 2 connectors. It belongs with the audio and music boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 100uF | Capacitors_ThroughHole:C_Radial_D6.3_L11.2_P2.5 | C7, C8, C10, C11 |
| 2 | 100nF | Capacitors_SMD:C_0402 | C12, C13 |
| 2 | 10nF | Capacitors_SMD:C_0805_HandSoldering | C5, C6 |
| 2 | 22k | Resistors_SMD:R_0603_HandSoldering | R5, R6 |
| 2 | 240k | Resistors_SMD:R_0603_HandSoldering | R1, R2 |
| 2 | 3.3uF | Capacitors_SMD:C_0805_HandSoldering | C3, C4 |
| 2 | 4.7 | Resistors_SMD:R_0603_HandSoldering | R7, R8 |
| 2 | 560 | Resistors_SMD:R_0603_HandSoldering | R3, R4 |
| 1 | 0.1uF | Capacitors_SMD:C_0402 | C2 |
| 1 | 10uF | Capacitors_ThroughHole:C_Radial_D5_L11_P2 | C9 |
| 1 | 1uF | Capacitors_SMD:C_0805_HandSoldering | C1 |
| 1 | CONN_01X07 | Pin_Headers:Pin_Header_Straight_1x07 | P1 |
| 1 | CS4335 | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U1 |
| 1 | PJ-320_3.5_jack | simple_headphones_dac:PJ-320E | U3 |
| 1 | TDA2822 | Power_Integrations:SO-8 | U2 |
| 1 | resistor | Pin_Headers:Pin_Header_Straight_2x03 | P2 |

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Breakout PCB for the ESP32-A1S module including an audio amp and basic GPIO headers, USB interface

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It measures 70.9 × 25.1 mm and has 2 copper layers, 1.6 mm thick.
26 parts, built around the CS4335-KSZ and TDA2822D. 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.
From the SL-RU/simple_headphones_dac repository on GitHub, at the commit this page was made from: the board is simple_headphones_dac.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask SL-RU before reusing the design.