# ANC Circuit ## Description 3 Stage signal conditioning circuit. Pre-amplification (G = 10) Low pass filter, and anti-aliasing ## Project Details - **Owner:** jeffwipes - **Created:** 8/20/2024 - **Last Updated:** 8/20/2024 - **Visibility:** Public ## Key Components ### MK3 — [CMM-2718AT-42108-TR](https://www.flux.ai/jecstronic/cmm-2718at-42108-tr.md) - Part Type: Microphone - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: CMM-2718AT-42108-TR - Datasheet URL: https://www.cuidevices.com/product/resource/cmm-2718at-42108-tr.pdf - Manufacturer Name: Texas Instruments Inc. **Pins:** - GND [pin 3] - GND [pin 2] - OUTPUT [pin 4] - VDD [pin 1] ### U1 — [OPA134UA](https://www.flux.ai/jecstronic/opa134ua.md) - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fopa134 - Manufacturer Name: Texas Instruments - Part Type: Operational Amplifier (OP-AMP) - Manufacturer Part Number: OPA134UA **Pins:** - - [pin 2] - + [pin 3] - NC [pin 5] - OUTPUT [pin 6] - V- [pin 4] - V+ [pin 7] - VOS [pin 8] - VOS [pin 1] ### U2 — [OPA134UA](https://www.flux.ai/jecstronic/opa134ua.md) - Manufacturer Part Number: OPA134UA - Part Type: Operational Amplifier (OP-AMP) - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fopa134 - Manufacturer Name: Texas Instruments **Pins:** - - [pin 2] - + [pin 3] - NC [pin 5] - OUTPUT [pin 6] - V- [pin 4] - V+ [pin 7] - VOS [pin 8] - VOS [pin 1] ### U3 — [OPA134UA](https://www.flux.ai/jecstronic/opa134ua.md) - Part Type: Operational Amplifier (OP-AMP) - Manufacturer Part Number: OPA134UA - Manufacturer Name: Texas Instruments - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fopa134 **Pins:** - - [pin 2] - + [pin 3] - NC [pin 5] - OUTPUT [pin 6] - V- [pin 4] - V+ [pin 7] - VOS [pin 8] - VOS [pin 1] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/jeffwipes/anc-circuit](https://www.flux.ai/jeffwipes/anc-circuit).* --- *Generated from [https://www.flux.ai/jeffwipes/anc-circuit](https://www.flux.ai/jeffwipes/anc-circuit)*