WardBenjamin/QMix2Audio mixer hardware design built in KiCad 5
Audio mixer is an open-source printed circuit board by WardBenjamin, from the WardBenjamin/QMix repository on GitHub. It is a 2-layer board of 66 × 39.1 mm with 71 parts on 50 nets, routed with 573 tracks and 46 vias.
It is built around the TL072 and MCP4451-104E/ST. Its parts include 18 resistors, 9 connectors, 8 capacitors, 7 ICs and 1 diode. It belongs with the audio and music boards of this library.
Audio mixer hardware design built in KiCad 5
| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | TestPoint | Connector_PinHeader_1.00mm:PinHeader_1x01_P1.00mm_Vertical | TP1, TP2, TP10, TP11, TP12, TP13, TP14, TP15, TP16, TP17, TP18, TP19, TP20, TP21, TP22, TP23 +8 |
| 10 | 10k | Capacitor_SMD:C_0603_1608Metric | R1, R2, R7, R8, R9, R10, R15, R16, R17, R18 |
| 8 | 10M | Capacitor_SMD:C_0603_1608Metric | R3, R4, R5, R6, R11, R12, R13, R14 |
| 8 | 1uF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4, C5, C6, C7, C8 |
| 3 | MountingHole | MountingHole:MountingHole_3.7mm | H1, H2, H3 |
| 2 | Conn_01x05 | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Horizontal | J6, J9 |
| 2 | MCP4451-104 | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U4, U5 |
| 2 | TL074 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U6, U7 |
| 1 | D_TVS | Diode_SMD:D_SOD-523 | D1 |
| 1 | Headphones Output | qmix:STX-3120-5B | J7 |
| 1 | LD1117S25TR_SOT223 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U3 |
| 1 | LD1117S50TR_SOT223 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | Power Input | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Horizontal | J1 |
| 1 | Speaker Output | qmix:STX-3000 | J8 |
| 1 | Stereo Input 1 | qmix:STX-3000 | J2 |
| 1 | Stereo Input 2 | qmix:STX-3000 | J3 |
| 1 | Stereo Input 3 | qmix:STX-3000 | J4 |
| 1 | Stereo Input 4 | qmix:STX-3000 | J5 |
| 1 | TL072 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
The 70 most common of 71 parts.
It measures 66 × 39.1 mm and has 2 copper layers, 1.6 mm thick.
71 parts, built around the TL072 and MCP4451-104E/ST. 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 WardBenjamin/QMix repository on GitHub, at the commit this page was made from: the board is audio-mixer.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 WardBenjamin before reusing the design.
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