2 layers75 × 100 mm
Phased
Neumi/open_echo
Open Source echo sounder / depth sounder / SONAR for bathymetry and research. Arduino based and compatible.
77 parts530
2 layers36.6 × 56.6 mm
Mic preamp
visgence/mic-preamp- Size
- 36.6 × 56.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 36
- Nets
- 26
- Pads
- 91
- Tracks, vias
- 210, 8
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 6 Aug 2014
- Updated
- 3 Sep 2014
Overview
Mic preamp is an open-source printed circuit board by visgence, from the visgence/mic-preamp repository on GitHub. It is a 2-layer board of 36.6 × 56.6 mm with 36 parts on 26 nets, routed with 210 tracks and 8 vias.
It is built around the MCP6234-E/SL and LM339. Its parts include 16 resistors, 5 diodes, 4 capacitors, 2 ICs and 1 connector. It belongs with the audio and music boards of this library.
Main components
2
MCP6234-E/SL
SOIC-14-40℃~+125℃ 1.8V~6V 150V/ms 1pA 1pA 20uA 23mA 300kHz 3uV/℃ 4 52nV/√Hz@1kHz 5mV 75dB ESD protection Rail-to-Rail Input, Rail-to-Rail Output SOIC-14 Operational Amplifier ROHSMicrochip TechnologyOperational AmplifierLM339
SOP-140℃~+70℃ 1.1mA 1.5mV 150ns 2.3nA 2V~32V 32V 57nA DTL、TTL、CMOS Four channels Open Collector SOP-14 Comparators ROHSJSMSEMIComparators
Parts
36| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 470 | visgence_parts:SM0603_VIS | R2, R12, R13, R14, R15, R16 |
| 4 | pin | visgence_parts:1pin_C | h1, h2, h3, h4 |
| 2 | 10k | visgence_parts:SM0603_VIS | R8, R9 |
| 2 | 1k | visgence_parts:SM0603_VIS | R1, R10 |
| 1 | -12db | LEDs:LED-0603 | D5 |
| 1 | -6db | LEDs:LED-0603 | D4 |
| 1 | 0db | LEDs:LED-0603 | D3 |
| 1 | 1.8k | visgence_parts:SM0603_VIS | R5 |
| 1 | 10k | visgence_parts:TC33X-2 | RV1 |
| 1 | 15k | visgence_parts:SM0603_VIS | R6 |
| 1 | 1u | visgence_parts:SM0603_Capa_VIS | C1 |
| 1 | 2.2k | visgence_parts:SM0603_VIS | R7 |
| 1 | 22p | visgence_parts:SM0603_Capa_VIS | C3 |
| 1 | 3.9k | visgence_parts:SM0603_VIS | R4 |
| 1 | 4.7u | visgence_parts:SM0603_Capa_VIS | C2 |
| 1 | 47k | visgence_parts:SM0603_VIS | R11 |
| 1 | 47u | visgence_parts:SM1206POL_VIS | C4 |
| 1 | 6.8k | visgence_parts:SM0603_VIS | R3 |
| 1 | 6db | LEDs:LED-0603 | D2 |
| 1 | CONN_4 | Connect:bornier4 | P1 |
| 1 | LM339 | SMD_Packages:SO14E | U2 |
| 1 | LOGO | visgence_parts:LOGO | G1 |
| 1 | LOGO | visgence_parts:LOGOMIRROR | G*** |
| 1 | MCP6234-E/SL | SMD_Packages:SO14E | U1 |
| 1 | MICROPHONE | visgence_parts:MIC9.7 | MIC1 |
| 1 | pwr | LEDs:LED-0603 | D1 |
Questions
How big is the Mic preamp PCB?
It measures 36.6 × 56.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Mic preamp use?
36 parts, built around the MCP6234-E/SL and LM339. 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 Mic preamp KiCad files?
From the visgence/mic-preamp repository on GitHub, at the commit this page was made from: the board is mic-preamp.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mic preamp design in my own project?
Its repository states no licence, so its author keeps all rights: ask visgence before reusing the design.
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