2 layers100 × 100 mm
2 layers100 × 100 mm
Processing
mamaheux/bass-amplifier- Size
- 100 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 200
- Nets
- 118
- Pads
- 517
- Tracks, vias
- 953, 174
- Pours
- 10
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 1 Mar 2020
- Updated
- 26 Apr 2024
Overview
Processing is an open-source printed circuit board by mamaheux, from the mamaheux/bass-amplifier repository on GitHub, published under the MIT licence. It is a 2-layer board of 100 × 100 mm with 200 parts on 118 nets, routed with 953 tracks and 174 vias.
It is built around the TL072, CS4270-CZZ and MCP6541R, with the SN74AUC1G74DCU, MMBT2222A and TD9944TG-G among its other parts. Its parts include 72 resistors, 57 capacitors, 10 ICs, 10 diodes and 8 connectors. It belongs with the NXP (LPC, Kinetis, i.MX RT) boards of this library.
Main components
6
TL072
SOP-8-18V~18V 0℃~+70℃ 1.4mA 1.5nA 10V/us 10mV 2 2.5nA 3MHz 85dB SOP-8 Operational Amplifier ROHSGcoreOperational Amplifier
CS4270-CZZ
TSSOP-24-10℃~+70℃ 3.1V~5.25V 4kHz~216kHz Encoder/decoder Serial TSSOP-24 Audio Interface ICs ROHSCirrus LogicAudio Interface ICsMCP6541R
UncategorisedMicrochip Technology
SN74AUC1G74DCU
VSSOP-8-0.5mm-40℃~+85℃ 1 1 1.8ns@2.5V,30pF 10uA 2.5pF 275MHz 300ps 500ps 74AUC Series 800mV~2.7V 9mA 9mA Asynchronous Complementary D-Type Rising Edge Set and Reset VSSOP-8-0.5mm Flip Flops ROHSTexas InstrumentsFlip Flops
MMBT2222A
SOT-23-55℃~+150℃ 1 NPN 100 100nA 1V 300MHz 300mW 40V 600mA 6V NPN Standalone SOT-23 Bipolar (BJT) ROHShongjiachengBipolar (BJT)
TD9944TG-G
SOIC-8-55℃~+150℃ 125pF 1A 2 N-Channel 240V 25pF 2V 6Ω@10V SOIC-8 MOSFETs ROHSMicrochip TechnologyMOSFETs
README
README.mdBass-Amplifier
Bass-Amplifier is a project to create our own bass guitar amplifier. The amplifier features are:
- Digital sound processing
- Footswitch
- Tuner output
- XLR and jack direct output
- Effect send and return
- Contour and presence filters
- 4-band EQ
- Compressor effect
- Overdrive effect
- Octaver effect
- Delay effect
- Reverb effect
Folder Descriptions
cases
This folder contains the CAD files to create the cases.
code
This folder contains the MCU source code for the footswitch, the bass amplifier signal processor and the bass amplifier controller.
electronics
This folder contains the schematics and PCB layouts of the bass amplifier.
tools/signal_processing
This folder contains a Python tool to test the audio effects.
Parts
200| Qty | Value | Footprint | References |
|---|---|---|---|
| 31 | TP | 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 +15 |
| 21 | 2.2µF/25V/UL ESR | Capacitor_SMD:C_0805_2012Metric | C5, C10, C11, C12, C13, C14, C15, C16, C17, C18, C30, C34, C35, C55, C56, C57 +5 |
| 17 | 10k | Resistor_SMD:R_0805_2012Metric | R3, R12, R15, R30, R31, R38, R40, R41, R42, R43, R53, R56, R57, R63, R65, R73 +1 |
| 9 | 0 | Resistor_SMD:R_0805_2012Metric | R1, R4, R5, R8, R16, R18, R21, R39, R70 |
| 9 | 10µF/50V | Capacitor_SMD:C_1206_3216Metric | C21, C26, C28, C29, C33, C36, C41, C42, C46 |
| 8 | 12V | Diode_SMD:D_1806_4516Metric | D1, D2, D3, D4, D5, D6, D7, D8 |
| 8 | 5.11k | Resistor_SMD:R_0805_2012Metric | R23, R24, R27, R28, R35, R46, R47, R50 |
| 7 | 2k | Resistor_SMD:R_0805_2012Metric | R54, R55, R59, R60, R66, R68, R69 |
| 5 | 20k | Resistor_SMD:R_0805_2012Metric | R25, R29, R44, R45, R51 |
| 4 | 0.1µF/25V | Capacitor_SMD:C_0603_1608Metric | C47, C48, C53, C54 |
| 4 | 1000µF/25V | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm | C1, C2, C3, C4 |
| 4 | TL074 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U1, U2, U4, U5 |
| 4 | inf | Resistor_SMD:R_0805_2012Metric | R2, R6, R11, R19 |
| 3 | 4.7nF/100V | Capacitor_SMD:C_0805_2012Metric | C27, C31, C32 |
| 2 | 10.2k | Resistor_SMD:R_0805_2012Metric | R26, R34 |
| 2 | 100k | Resistor_SMD:R_0805_2012Metric | R36, R37 |
| 2 | 1k | Resistor_SMD:R_0805_2012Metric | R32, R33 |
| 2 | 1µF/6.3V | Capacitor_SMD:C_0805_2012Metric | C51, C52 |
| 2 | 220pF/100V | Capacitor_SMD:C_0805_2012Metric | C20, C24 |
| 2 | 220pF/50V | Capacitor_SMD:C_0805_2012Metric | C44, C45 |
| 2 | 3.3µF/25V | Capacitor_SMD:C_0805_2012Metric | C39, C40 |
| 2 | 470 | Resistor_SMD:R_0805_2012Metric | R58, R61 |
| 2 | 6.2V | Diode_SMD:D_1806_4516Metric | D9, D10 |
| 2 | Conn_01x06_Male | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | J1, J2 |
| 2 | R_POT | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | RV1, RV2 |
| 2 | TL072 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U3, U10 |
| 2 | inf or 47k | Resistor_SMD:R_0805_2012Metric | R71, R72 |
| 1 | 0.047µF/100V | Capacitor_SMD:C_0805_2012Metric | C38 |
| 1 | 0.1µF/100V | Capacitor_SMD:C_0805_2012Metric | C22 |
| 1 | 0.22µF/100V | Capacitor_SMD:C_0805_2012Metric | C23 |
| 1 | 100pF/100V | Capacitor_SMD:C_0805_2012Metric | C19 |
| 1 | 10k | Connector_PinSocket_2.54mm:PinSocket_1x05_P2.54mm_Vertical | RV_SW1 |
| 1 | 10µF/10V | Capacitor_SMD:C_0805_2012Metric | C50 |
| 1 | 12.1K | Resistor_SMD:R_0805_2012Metric | R9 |
| 1 | 12.1k | Resistor_SMD:R_0805_2012Metric | R13 |
| 1 | 15.4k | Resistor_SMD:R_0805_2012Metric | R64 |
| 1 | 1M | Resistor_SMD:R_0805_2012Metric | R10 |
| 1 | 1nF/100V | Capacitor_SMD:C_0805_2012Metric | C25 |
| 1 | 2.21k | Resistor_SMD:R_0805_2012Metric | R17 |
| 1 | 221 | Resistor_SMD:R_0805_2012Metric | R14 |
| 1 | 23.7k | Resistor_SMD:R_0805_2012Metric | R22 |
| 1 | 3.09k | Resistor_SMD:R_0805_2012Metric | R62 |
| 1 | 3600pF/50V | Capacitor_SMD:C_0805_2012Metric | C43 |
| 1 | 4.75k | Resistor_SMD:R_0805_2012Metric | R52 |
| 1 | 47.5k | Resistor_SMD:R_0805_2012Metric | R7 |
| 1 | 47µF/10V | Capacitor_SMD:C_0805_2012Metric | C49 |
| 1 | 56.2k | Resistor_SMD:R_0805_2012Metric | R20 |
| 1 | 560 | Resistor_SMD:R_0805_2012Metric | R67 |
| 1 | AudioJack2_X4 | Connector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_Vertical | J5 |
| 1 | AudioJack2_XLR_SW | Connector_PinSocket_2.54mm:PinSocket_1x07_P2.54mm_Vertical | J6 |
| 1 | CS4270 | Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm | U9 |
| 1 | Conn_01x02_Male | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J8 |
| 1 | Conn_01x03_Male | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J7 |
| 1 | MCP6541 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U7 |
| 1 | MMBT2222A | Package_TO_SOT_SMD:SOT-23 | Q4 |
| 1 | MMUN2111LT1 | Package_TO_SOT_SMD:SOT-23 | Q3 |
| 1 | SN74AUC1G74 | Package_SO:SSOP-8_2.95x2.8mm_P0.65mm | U8 |
| 1 | TD9944 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | Q1 |
| 1 | Teensy_4.0 | bass_amplifier:Teensy_4.0 | U6 |
| 1 | control board | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J4 |
| 1 | power_amp | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J3 |
The 194 most common of 200 parts.
Questions
How big is the Processing PCB?
It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Processing use?
200 parts, built around the TL072, CS4270-CZZ, MCP6541R and SN74AUC1G74DCU. 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 Processing KiCad files?
From the mamaheux/bass-amplifier repository on GitHub, at the commit this page was made from: the board is electronics/processing/processing.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Processing design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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