# Philosophical Black Liquid Breathing Apparatus ## Description mic with 40k bandpass ## Project Details - **Owner:** laserguru - **Created:** 9/9/2021 - **Last Updated:** 9/9/2021 - **Visibility:** Public ## Key Components ### ? — [Knowles Acoustics Microphone](https://www.flux.ai/natarius/knowles-acoustics-microphone.md) - Manufacturer Part Number: SPU0409HD5H-PB - Manufacturer Name: Knowles Acoustics **Pins:** - Gain Control - GND - Vin - Vout ### U1 — [OPA2156xD](https://www.flux.ai/usairemalamgeer/opa2156xd.md) - Manufacturer Name: ON Semiconductor - Package or Case Code: 8-SOIC - Datasheet URL: http://www.onsemi.com/PowerSolutions/document/NCS325-D.PDF - Manufacturer Part Number: OPA2156xD - Part Type: Operational Amplifier (OP-AMP) **Pins:** - - - + - OUTPUT ### U2 — [OPA2156xD](https://www.flux.ai/usairemalamgeer/opa2156xd.md) - Manufacturer Part Number: OPA2156xD - Part Type: Operational Amplifier (OP-AMP) - Manufacturer Name: ON Semiconductor - Datasheet URL: http://www.onsemi.com/PowerSolutions/document/NCS325-D.PDF - Package or Case Code: 8-SOIC **Pins:** - - - + - OUTPUT *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/laserguru/philosophical-black-liquid-breathing-apparatus](https://www.flux.ai/laserguru/philosophical-black-liquid-breathing-apparatus).* --- *Generated from [https://www.flux.ai/laserguru/philosophical-black-liquid-breathing-apparatus](https://www.flux.ai/laserguru/philosophical-black-liquid-breathing-apparatus)*