2 layers45 × 45 mm
Tone control 1
dmsd-lab/AMP8611
AMP8611 - open hardware integrated stereo power amplifier with a 2-channel input selector, PGA2311 digital volume control and LM3886 power stages
73 partsCERN-OHL-S-2.0
2 layers234 × 58 mm
PGA2311 3
dmsd-lab/AMP8611AMP8611 - open hardware integrated stereo power amplifier with a 2-channel input selector, PGA2311 digital volume control and LM3886 power stages
- Size
- 234 × 58 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 213
- Nets
- 142
- Pads
- 599
- Tracks, vias
- 1,342, 339
- Pours
- 14
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 30 Apr 2026
- Updated
- 21 Oct 2026
Overview
PGA2311 3 is an open-source printed circuit board by dmsd-lab, from the dmsd-lab/AMP8611 repository on GitHub, published under the CERN-OHL-S-2.0 licence. It is a 2-layer board of 234 × 58 mm with 213 parts on 142 nets, routed with 1,342 tracks and 339 vias.
It is built around the STM32G070KBT6, SN74LVC2G17DBV and OPA1678IDRGR, with the PGA2311UA, CD74HCT4052M and LM317LIDR-JSM among its other parts. Its parts include 85 resistors, 78 capacitors, 17 connectors, 14 ICs and 7 diodes. It belongs with the STM32 boards of this library.
Main components
12
STM32G070KBT6
LQFP-32(7x7)-40℃~+85℃ 128KB 12bit 29 2V~3.6V 32 Bit 36KB 64MHz ARM Cortex-M0+ Built-in+External FLASH LQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
SN74LVC2G17DBV
SOT-23-6-40℃~+85℃ 1 1.65V~5.5V 10uA 2 32mA 32mA 5.4ns@3.3V,50pF 74LVC Schmitt trigger SOT-23-6 Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, Transceivers
OPA1678IDRGR
WSON-8-EP(3x3)-18V~-2.25V、2.25V~18V -40℃~+85℃ 10pA 10pA 110dB 16MHz 2 2mA 2uV/℃ 4.5V~36V 4.5nV/√Hz@1kHz 500uV 50mA 9V/us Built-in compensation、ESD protection Rail-to-rail output WSON-8-EP(3x3) Operational Amplifier ROHSTexas InstrumentsAudio Amplifiers
PGA2311UA
SOIC-16-300mil-40℃~+85℃ -5.25V~-4.75V、4.75V~5.25V 0.0002% 100dB 2-Channel 8mA Automatic mute/no-noise switch、Digitally programmable gain SOIC-16-300mil Audio Amplifiers ROHSTexas InstrumentsAudio Amplifiers
CD74HCT4052M
SOIC-16-55℃~+125℃ 160Ω 165MHz 29ns 29ns 4 4.5V~5.5V 4:1 63ns Bidirectional analog channel SOIC-16 Analog Switches, Multiplexers ROHSTexas InstrumentsAnalog Switches, Multiplexers
LM317LIDR-JSM
SOP-80℃~+125℃ 1 1.25V~32V 1.5A 75dB@(120Hz) Adjustable Positive Short Circuit Protection、Thermal shutdown SOP-8 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSJSMSEMIUncategorised
LM337LM
SOIC-8-25℃~+125℃ 1 1.2V~37V 100mA 40V 60dB@(120Hz) Adjustable Negative Over Current Protection、Over Temperature Protection SOIC-8 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
LP2985-33DBV
SOT-23-5-40℃~+125℃@(Tj) 1 150mA 16V 3.3V 30uVrms 45dB@(1kHz) 575mV@(150mA) 850uA Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown、Enable control、Noise bypass terminal Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
SN74LVC8T245DW
SOIC-24-300mil-40℃~+85℃ 1 1.65V~5.5V 1.65V~5.5V 8 Bidirectional Power-Off Protection Tri-State SOIC-24-300mil Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level Shifters
TLV1117-50IDCY
SOT-223-4-40℃~+125℃@(Tj) 0.003%Vout 1 1.4V@(800mA) 15V 5V 75dB@(120Hz) 800mA Fixed Over Current Protection Positive SOT-223-4 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsTPS60403DBV
SOT-23-5-40℃~+125℃ -5.5V~-1.6V 1.8V~5.25V 15Ω 250kHz 425uA 60mA 90% Inverted Not supported SOT-23-5 Charge Pumps ROHSTexas InstrumentsCharge Pumps
MF-NSMF012-2
1206-40℃~+85℃ 1.35Ω 1.6mm 10A 3.2mm 30V 400mW 8.5Ω 1206 Resettable Fuses ROHSBournsResettable Fuses
README
README.mdAMP8611 - Integrated class AB Stereo Power Amplifier
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 output power: 2 x 45W RMS (1kHz sinusoidal, 4ohm load);
- Bandwidth (-3dB): 20Hz – 90kHz;
- Volume control: -80 to +12dB;
- Dimensions: 240 x 265 x 65 mm (80 mm including feet).
Parts
213| Qty | Value | Footprint | References |
|---|---|---|---|
| 25 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C205, C206, C208, C209, C211, C212, C221, C225, C226, C229, C230, C235, C237, C238, C239, C303 +9 |
| 21 | 10u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C210, C218, C228, C232, C234, C240, C301, C302, C304, C305, C306, C307, C308, C316, C317, C322 +5 |
| 18 | 100 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R205, R206, R227, R228, R308, R309, R310, R311, R312, R313, R314, R315, R316, R317, R318, R319 +2 |
| 18 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R214, R215, R224, R233, R323, R326, R327, R331, R332, R333, R334, R336, R337, R338, R339, R344 +2 |
| 12 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R218, R219, R225, R328, R329, R330, R335, R340, R341, R346, R347, R349 |
| 11 | 220u | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C315, C405, C406, C407, C408, C409, C410, C411, C412, C413, C414 |
| 7 | 0 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R207, R222, R223, R226, R230, R304, R325 |
| 6 | 10k 1% | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R201, R202, R203, R204, R212, R213 |
| 4 | 0 | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C213, C214, C216, C231 |
| 4 | 1.5u | Capacitor_THT:C_Rect_L7.2mm_W7.2mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C201, C202, C203, C204 |
| 4 | 100u | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C207, C227, C321, C323 |
| 4 | 2 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J205, J206, J207, J208 |
| 4 | MountingHole | MountingHole:MountingHole_2.7mm_M2.5 | H201, H202, H203, H204 |
| 3 | 1 | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J302, J403, J404 |
| 3 | 1 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R301, R401, R402 |
| 3 | 2,7k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R305, R322, R324 |
| 3 | 220 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R220, R221, R343 |
| 3 | 3 | Connector_Phoenix_MC:PhoenixContact_MCV_1,5_3-G-3.81_1x03_P3.81mm_Vertical | J201, J202, J402 |
| 2 | 0 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R403, R404 |
| 2 | 0.33 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R307, R342 |
| 2 | 10 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R208, R211 |
| 2 | 1N5819 | Diode_SMD:D_SOD-123 | D101, D202 |
| 2 | 1k 1% | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R217, R232 |
| 2 | 1n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C222, C223 |
| 2 | 2 | Connector_Phoenix_MC:PhoenixContact_MCV_1,5_2-G-3.81_1x02_P3.81mm_Vertical | J203, J204 |
| 2 | 2.7k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R302, R306 |
| 2 | 220p | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C215, C217 |
| 2 | 330 1% | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R216, R231 |
| 2 | 33p | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C219, C220 |
| 2 | 33u | Capacitor_Tantalum_SMD:CP_EIA-6032-20_AVX-F_HandSolder | C224, C236 |
| 2 | 5.1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R209, R210 |
| 2 | CD74HCT4052 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U202, U203 |
| 2 | MF-NSMF012-2 | Fuse:Fuse_1206_3216Metric | F401, F402 |
| 2 | SMAJ15.0A | Diode_SMD:D_SMB | D401, D402 |
| 2 | TestPoint | TestPoint:TestPoint_THTPad_2.0x2.0mm_Drill1.0mm | TP201, TP202 |
| 1 | 1 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J401 |
| 1 | 100 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R303 |
| 1 | 100n | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C415 |
| 1 | 4 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J305 |
| 1 | 4 | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J304 |
| 1 | BAS40-04 | Package_TO_SOT_SMD:SOT-23_Handsoldering | D201 |
| 1 | BC817-40 | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q301 |
| 1 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J303 |
| 1 | Conn_01x16 | Connector_PinSocket_2.54mm:PinSocket_1x16_P2.54mm_Horizontal | J301 |
| 1 | DF01S | Diode_SMD:Diode_Bridge_OnSemi_SDIP-4L | D403 |
| 1 | Encoder PEC11R | Rotary_Encoder:RotaryEncoder_Alps_EC12E-Switch_Vertical_H20mm_CircularMountingHoles | SW302 |
| 1 | KLS4-3362P 5.1k | Potentiometer_THT:Potentiometer_Vishay_T73YP_Vertical | RV301 |
| 1 | LED_GREEN | LED_THT:LED_D3.0mm | D301 |
| 1 | LM317LIDR | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U206 |
| 1 | LM337LM | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U204 |
| 1 | LP2985-33DBV | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U306 |
| 1 | OPA1678IDR | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U201 |
| 1 | PGA2311UA | Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm | U205 |
| 1 | SN74LVC2G17DBV | Package_TO_SOT_SMD:SOT-23-6_Handsoldering | U307 |
| 1 | SN74LVC8T245DW | Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm | U303 |
| 1 | STM32G070KBT6 | Package_QFP:LQFP-32_7x7mm_P0.8mm | U304 |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH-12mm | SW301 |
| 1 | TLV1117-50IDC | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U305 |
| 1 | TPS60403DBV | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U301 |
| 1 | UA78L05AIDR | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U207 |
| 1 | WH1602B | Display:WC1602A | U302 |
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Questions
How big is the PGA2311 3 PCB?
It measures 234 × 58 mm and has 2 copper layers, 1.6 mm thick.
What parts does the PGA2311 3 use?
213 parts, built around the STM32G070KBT6, SN74LVC2G17DBV, OPA1678IDRGR and PGA2311UA. 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 PGA2311 3 KiCad files?
From the dmsd-lab/AMP8611 repository on GitHub, at the commit this page was made from: the board is PGA2311_3/PGA2311_3.kicad_pcb and its schematic 3886_3/3886_3.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PGA2311 3 design in my own project?
Its repository publishes it under the CERN-OHL-S-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).