ToneCTRL
dmsd-lab·AMP8611·Tone_control_1/tone_control_1.kicad_pcb
About the ToneCTRL PCB
ToneCTRL is an open source PCB design by dmsd-lab, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 45 × 45 mm, with 72 components from 19 distinct parts.
Other key parts include the OPA1678, TLV9051XDBV and MCP4261. By type, the board carries 35 capacitors, 26 resistors, 6 ICs, 3 connectors and 2 diodes.
It belongs with the audio designs in this gallery.
From the project
AMP8611 - Integrated Stereo Power Amplifier with a 2-channel input selector, PGA2311 digital volume control and LM3886 power stages
Open hardware project under CERN-OHL-S v2 license
Amplifier combining a 2-channel input selector, PGA2311 digital volume control and 45W per-channel LM3886 output stages.
Full documentation (description pdf, Kicad project schematic and PCB, Gerber files, BOM, STM32 firmware) is available in the repository.
Key Specifications: - Input resistance: 10kΩ; - Nominal input voltage: 0.85Vrms; - Maximum input voltage: 2.5Vrms; - Input Channels isolation: 95dB; - Maximum output power: 2 x 45W RMS (1kHz sinusoidal, 4ohm load); - Bandwidth (-3dB): 20Hz – 90kHz; - Volume control: -80 to +12dB; -…

Main components on the ToneCTRL
ToneCTRL bill of materials (BOM)
72 components, 19 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | OPA1678 | SOIC-8_3.9x4.9mm_P1.27mm | U101, U102, U103 |
| 1 | TLV9051XDBV TLV9051xDBV | SOT-23-5_HandSoldering | U104 |
| 2 | MCP4261 | TSSOP-14_4.4x5mm_P0.65mm | U105, U106 |
| 1 | CONN_01X01 Conn_01x01 | PinHeader_1x01_P2.54mm_Vertical | J101 |
| 1 | CONN_01X05 Conn_01x05 | PinSocket_1x12_P2.54mm_Vertical | J102 |
| 1 | CONN_01X05 Conn_01x05 | PinSocket_1x05_P2.54mm_Vertical | J103 |
| 2 | 1N5819 | D_SOD-123 | D101, D102 |
| 13 | 100N 100n | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C101, C102, C103, C105, C106, C107, C108, C111 +5 |
| 2 | 10U 10u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C104, C112 |
| 2 | 33U 33u | CP_EIA-6032-20_AVX-F_HandSolder | C109, C110 |
| 6 | 220P 220p | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C114, C115, C126, C129, C132, C133 |
| 4 | 33P 33p | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C116, C117, C118, C120 |
| 2 | 1,5u | C_Rect_L7.5mm_W6.5mm_P5.00mm | C119, C121 |
| 2 | 10N 10n | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C122, C123 |
| 4 | 100N 100n | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C127, C128, C130, C131 |
| 16 | 10K 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R101, R102, R104, R106, R109, R110, R111, R112 +8 |
| 2 | 15K 15k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R103, R105 |
| 2 | 100 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R107, R108 |
| 6 | 3,3k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R115, R116, R119, R121, R123, R125 |
ToneCTRL design files
The KiCad project lives in the dmsd-lab/AMP8611 repository on GitHub; these links point at the commit this page was built from.
ToneCTRL: common questions
How big is the ToneCTRL PCB?
The ToneCTRL measures 45 × 45 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the ToneCTRL?
72 components, from 19 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the ToneCTRL design files?
From the dmsd-lab/AMP8611 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the ToneCTRL design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which dmsd-lab chose for the repository.
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