Digital volume
About the Digital volume PCB
Digital volume is an open source PCB design by barrybridges68, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 80 × 40 mm, with 41 components from 21 distinct parts.
Other key parts include the N76E003, MCP4011-xxxxSN, LM321 and NE5532. By type, the board carries 13 capacitors, 11 resistors, 8 connectors, 5 ICs, 3 diodes and 1 inductor.
It belongs with the audio designs in this gallery.
From the project
Assorted audio projects, most in working state
Main components on the Digital volume
Digital volume bill of materials (BOM)
41 components, 21 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | N76E003 | TSSOP-20_4.4x6.5mm_P0.65mm | U1 |
| 2 | MCP4011-xxxxSN | SOIC-8_3.9x4.9mm_P1.27mm | U2, U3 |
| 1 | LM321 | SOT-23-5 | U4 |
| 1 | NE5532 | SOIC-8_3.9x4.9mm_P1.27mm | U5 |
| 1 | IR Sensor Input | JST_EH_B3B-EH-A_1x03_P2.50mm_Vertical | J1 |
| 1 | Conn_01x03_Male | JST_EH_B3B-EH-A_1x03_P2.50mm_Vertical | J2 |
| 1 | Rotary Encoder Input | JST_EH_B5B-EH-A_1x05_P2.50mm_Vertical | J3 |
| 5 | Conn_01x02_Male | JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | J4, J5, J6, J7, J8 |
| 1 | D_Schottky | D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1 |
| 1 | PWR | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D2 |
| 1 | MUTE | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D3 |
| 1 | 120R | R_0603_1608Metric | FB1 |
| 8 | 100n | C_0603_1608Metric | C1, C3, C5, C6, C8, C9, C12, C13 |
| 4 | 1u | CP_Elec_4x5.4 | C2, C4, C7, C10 |
| 1 | 10u | CP_Elec_4x5.4 | C11 |
| 3 | 10K | R_0603_1608Metric | R1, R5, R6 |
| 1 | 100R | R_0603_1608Metric | R2 |
| 2 | 1K | R_0603_1608Metric | R3, R4 |
| 2 | 1M | R_0603_1608Metric | R7, R8 |
| 2 | 2k2 | R_0603_1608Metric | R9, R10 |
Show 1 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 10R | R_0603_1608Metric | R11 |
Digital volume design files
The KiCad project lives in the barrybridges68/assorted_audio_projects repository on GitHub; these links point at the commit this page was built from.
Digital volume: common questions
How big is the Digital volume PCB?
The Digital volume measures 80 × 40 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Digital volume?
41 components, from 21 distinct parts. The full bill of materials is listed on this page.
Where can I download the Digital volume design files?
From the barrybridges68/assorted_audio_projects repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Digital volume design in my own project?
Yes, under the terms of its GPL-3.0 license, which barrybridges68 chose for the repository.
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