# Bone Conduction Hearing Aid v2.1 ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** seansew2412 - **Created:** 6/29/2025 - **Last Updated:** 4/3/2026 - **Visibility:** Public - **Copies:** 1 ## Key Components ### BATT — [DC Supply](https://www.flux.ai/jharwinbarrozo/dc-supply~35.md) - Voltage: 5V **Pins:** - ANODE - CATHODE ### D1 — [1A Rectifier Diode](https://www.flux.ai/corynrobinson/1a-rectifier-diode~j2.md) - Manufacturer Part Number: S1J-E3_61T - Purchase Url: https://octopart.com/s1j-e3%2F61t-vishay-39552151#CadModels - Current: 1A - Max Reverse Voltage: 600V - Forward Voltage: 1.1V - Capacitance: 12pF - Datasheet URL: https://datasheet.octopart.com/S1J-E3-61T-Vishay-datasheet-10950683.pdf - Part Type: Diode - Manufacturer Name: Vishay - Package or Case Code: D_SMA **Pins:** - ANODE [pin 2] - CATHODE [pin 1] ### IC4 — [MAX9814ETD+T](https://www.flux.ai/vasyl/max9814etdplust~2cd.md) - Datasheet URL: https://datasheets.maximintegrated.com/en/ds/MAX9814.pdf - Manufacturer Part Number: MAX9814ETD+T - Part Type: Integrated Circuit - Manufacturer Name: Analog Devices Inc./Maxim Integrated **Pins:** - ~SHDN [pin 2] - A/R [pin 9] - BIAS [pin 12] - CG [pin 3] - CT [pin 1] - GAIN [pin 10] - GND [pin 4] - GND [pin 11] - GND [pin 15] - GND [pin 7] - MICBIAS [pin 13] - MICIN [pin 8] - MICOUT [pin 6] - TH [pin 14] - VDD [pin 5] ### J1 — [USB-C 2.0 Receptacle](https://www.flux.ai/corynrobinson/usb-c-20-receptacle~cf.md) - Manufacturer Name: GTC - Purchase Url: https://www.digikey.com/en/products/detail/gct/USB4105-GF-A/11198441 - Part Type: USB C - Datasheet URL: https://gct.co/files/drawings/usb4105.pdf - Manufacturer Part Number: USB4105-GF-A **Pins:** - CC1 [pin 6] - CC2 [pin 12] - D- [pin 7] - D- [pin 9] - D+ [pin 10] - D+ [pin 8] - GND [pin 1] - GND [pin 16] - GND [pin 15] - GND [pin 2] - SBU1 [pin 11] - SBU2 [pin 5] - VBUS [pin 3] - VBUS [pin 14] - VBUS [pin 4] - VBUS [pin 13] ### J2 — [2-Position Screw Terminal](https://www.flux.ai/corynrobinson/2-position-screw-terminal~s4.md) - Datasheet URL: https://www.we-online.com/katalog/datasheet/691137710002.pdf - Part Type: Connector - Manufacturer Name: Würth Elektrik - Manufacturer Part Number: 691137710002 **Pins:** - P1 [pin 1] - P2 [pin 2] ### LED1 - Red — [LED 0805 (2012 Metric)](https://www.flux.ai/vasyl/led-0805-2012-metric~sr7.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### LED2 - Blue — [LED 0805 (2012 Metric)](https://www.flux.ai/vasyl/led-0805-2012-metric~sr7.md) - Part Type: LED **Pins:** - A [pin 2] - K [pin 1] ### MK1 — [CMA-4544PF-W_Microphone Symbol](https://www.flux.ai/adrian95/cma-4544pf-wmicrophone-symbol~kbd.md) - Part Type: Microphone - Manufacturer Part Number: CMA-4544PF-W - Datasheet URL: https://www.cuidevices.com/product/resource/cma-4544pf-w.pdf - Manufacturer Name: CUI Devices - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] ### Rbias — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Resistance: 100kΩ - Part Type: Resistor - Package: SMD_0603_1608Metric **Pins:** - P1 [pin 1] - P2 [pin 2] ### Rbias — [Generic Resistor](https://www.flux.ai/jharwinbarrozo/generic-resistor~3e.md) - Resistance: 100kΩ - Part Type: Resistor - Package: SMD_0603_1608Metric **Pins:** - P1 [pin 1] - P2 [pin 2] ### SW2 — [SSSS916400](https://www.flux.ai/lcsc/ssss916400~yqcb.md) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409272003_ALPSALPINE-SSSS916400_C129102.pdf - Manufacturer Part Number: SSSS916400 - LCSC Part Number: C129102 - Part Type: Slide Switches - Product Info Url: https://lcsc.com/product-detail/Toggle-Switches_ALPS_SSSS916400_SSSS916400_C129102.html - Package or Case Code: SW-TH_SSSS916400 - JLCPCB Part Class: Extended Part - Manufacturer Name: ALPSALPINE(阿尔卑斯阿尔派) **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### U1 — [ADA4807-1ARJZ-R2](https://www.flux.ai/jecstronic/ada4807-1arjz-r2~7qt.md) - Manufacturer Name: Analog Devices Inc. - Manufacturer Part Number: ADA4807-1ARJZ-R2 - Part Type: Operational Amplifier (OP-AMP) - Datasheet URL: https://www.analog.com/media/en/technical-documentation/data-sheets/ADA4807-1_4807-2_4807-4.pdf **Pins:** - - [pin 4] - + [pin 3] - ~DISABLE [pin 5] - OUTPUT [pin 1] - V- [pin 2] - V+ [pin 6] ### U2 — [ADA4807-1ARJZ-R2](https://www.flux.ai/jecstronic/ada4807-1arjz-r2~7qt.md) - Manufacturer Name: Analog Devices Inc. - Manufacturer Part Number: ADA4807-1ARJZ-R2 - Part Type: Operational Amplifier (OP-AMP) - Datasheet URL: https://www.analog.com/media/en/technical-documentation/data-sheets/ADA4807-1_4807-2_4807-4.pdf **Pins:** - - [pin 4] - + [pin 3] - ~DISABLE [pin 5] - OUTPUT [pin 1] - V- [pin 2] - V+ [pin 6] ### U3 — [ADA4807-1ARJZ-R2](https://www.flux.ai/jecstronic/ada4807-1arjz-r2~7qt.md) - Manufacturer Name: Analog Devices Inc. - Manufacturer Part Number: ADA4807-1ARJZ-R2 - Part Type: Operational Amplifier (OP-AMP) - Datasheet URL: https://www.analog.com/media/en/technical-documentation/data-sheets/ADA4807-1_4807-2_4807-4.pdf **Pins:** - - [pin 4] - + [pin 3] - ~DISABLE [pin 5] - OUTPUT [pin 1] - V- [pin 2] - V+ [pin 6] ### U4 — [TP4056](https://www.flux.ai/vasy_skral/tp4056~xa.md) - Manufacturer Name: NanJing Top Power ASIC Corp. - Datasheet URL: https://dlnmh9ip6v2uc.cloudfront.net/datasheets/Prototyping/TP4056.pdf - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: TP4056 **Pins:** - ~CHRG [pin 7] - ~STDBY [pin 6] - BAT [pin 5] - CE [pin 8] - EP [pin 9] - GND [pin 3] - PROG [pin 2] - TEMP [pin 1] - VCC [pin 4] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/seansew2412/bone-conduction-hearing-aid-v2p1~2d](https://www.flux.ai/seansew2412/bone-conduction-hearing-aid-v2p1~2d).* --- *Generated from [https://www.flux.ai/seansew2412/bone-conduction-hearing-aid-v2p1~2d](https://www.flux.ai/seansew2412/bone-conduction-hearing-aid-v2p1~2d)*