# Project Aura Hearing Device ## Description Left-ear prototype for Project Aura: a BLE hearing-device/IEM concept with nRF5340 compute, rechargeable LiPo power, digital microphones, flash storage, USB-C, and a multi-driver in-ear body. Current status: requirements captured; schematic capture is blocked pending audio/flex architecture correction. ## Project Details - **Owner:** vcabieles - **Created:** 7/15/2026 - **Last Updated:** 7/17/2026 - **Visibility:** Public ## Key Components ### ANT1 — [2450AT42E010BE](https://www.flux.ai/vasy_skral/2450at42e010be~g4d.md) - Role Details: 2.4GHz chip antenna; needs Nordic RF matching/keepout and tuning in layout - Functional Group: RF - Manufacturer Name: JOHANSON TECHNOLOGY - Role: RF Tuning / Matching - Datasheet URL: https://www.johansontechnology.com/datasheets/2450AT42E010B/2450AT42E010B.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Symbol Style: Parametric - Manufacturer Part Number: 2450AT42E010BE **Pins:** - FEEDING_POINT [pin 1] - GND_1 [pin 3] - GND_2 [pin 4] - NC [pin 2] ### D1 — [BAT54H,115](https://www.flux.ai/jecstronic/bat54hc115~nbk.md) - Datasheet URL: https://assets.nexperia.com/documents/data-sheet/BAT54H.pdf - Role: Protection - Part Type: Diode - Manufacturer Name: Nexperia USA Inc. - Functional Group: Power Protection - Role Details: Prototype battery/rail protection candidate; voltage drop must be checked against PMIC headroom - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: BAT54H,115 **Pins:** - A [pin 2] - K [pin 1] ### J1 — [USB-C 2.0 Receptacle](https://www.flux.ai/vasy_skral/usb-c-2p0-receptacle~1xw.md) - Purchase Url: https://www.digikey.com/en/products/detail/gct/USB4105-GF-A/11198441 - Role Details: USB-C 2.0 sink/data connector; replaces earlier USB4125-GF-A symbol that lacked D+/D- pins - Role: Protection - Manufacturer Name: GTC - Manufacturer Part Number: USB4105-GF-A - Symbol Style: parametric-v1 - Datasheet URL: https://gct.co/files/drawings/usb4105.pdf - Part Type: USB C - Functional Group: USB / Charging **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 — AURA-FLEX-7-AUDIO - Role: Protection - Datasheet URL: https://www.flux.ai/vcabieles/project-aura-hearing-device - Part Type: Connectors - Role Details: Corrected flex pinout: CS47L63 and hook mics stay hook-side; flex carries TDM and amp power/control to IEM body - Functional Group: Flex Interconnect - Manufacturer Name: DevMind LLC - Package or Case Code: CONN-SMD **Pins:** - AMP_EN [pin 7] - GND [pin 2] - GND_SHIELD [pin 3] - TDM_BCLK [pin 4] - TDM_DOUT [pin 6] - TDM_FSYNC [pin 5] - VSYS_AMP [pin 1] ### J3 — [S2B-PH-K-S(LF)(SN)](https://www.flux.ai/lcsc/s2b-ph-k-slfsn~vk6f.md) - Manufacturer Name: JST - Functional Group: Battery - LCSC Part Number: C173752 - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/PH-Connectors_JST-Sales-America_S2B-PH-K-S-LF-SN_JST-Sales-America-S2B-PH-K-S-LF-SN_C173752.html - Role: Protection - Package or Case Code: CONN-TH_S2B-PH-K-S-LF-SN - Role Details: Battery input connector; add polarity protection and use protected LiPo cell - Manufacturer Part Number: S2B-PH-K-S(LF)(SN) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_JST-S2B-PH-K-S-LF-SN_C173752.pdf - Part Type: Wire To Board / Wire To Wire Connector **Pins:** - 1 [pin 1] - 2 [pin 2] ### MIC1 — ICS-40730 - Package or Case Code: Module - Datasheet URL: https://product.tdk.com/system/files/dam/doc/product/sw_piezo/mic/mems-mic/data_sheet/ics-40730-datasheet.pdf - Manufacturer Name: TDK - Manufacturer Part Number: ICS-40730 - Role: Sensing (Shunt) - Functional Group: Hook Microphones - Role Details: TDK InvenSense ICS-40730 analog differential hook microphone; VDD 1.5-3.63V, ~285uA typical **Pins:** - GND [pin 4] - OUTPUT- [pin 3] - OUTPUT+ [pin 2] - VDD [pin 1] ### MIC2 — ICS-40730 - Manufacturer Part Number: ICS-40730 - Manufacturer Name: TDK - Functional Group: Hook Microphones - Role: Sensing (Shunt) - Role Details: TDK InvenSense ICS-40730 analog differential hook microphone; VDD 1.5-3.63V, ~285uA typical - Package or Case Code: Module - Datasheet URL: https://product.tdk.com/system/files/dam/doc/product/sw_piezo/mic/mems-mic/data_sheet/ics-40730-datasheet.pdf **Pins:** - GND [pin 4] - OUTPUT- [pin 3] - OUTPUT+ [pin 2] - VDD [pin 1] ### SPK1 — WBFK-30095-000 - Manufacturer Part Number: WBFK-30095-000 - Datasheet URL: https://www.knowles.com/docs/default-source/default-document-library/datasheetbae31a731dff6ddbb37cff0000940c19.pdf?Status=Master&sfvrsn=0 - Manufacturer Name: Knowles - Mount: Solder - Exclude from PCB: true - Role: Amplification - Package or Case Code: Module - Functional Group: Acoustic Drivers - Role Details: IEM-side woofer BA receiver; excluded from hook PCB layout and to be implemented in Project Aura IEM Board **Pins:** - COIL_A [pin 1] - COIL_B [pin 2] ### SPK2 — CI-22955-000 - Package or Case Code: Module - Manufacturer Name: Knowles - Role: Amplification - Exclude from PCB: true - Role Details: IEM-side mid BA receiver; excluded from hook PCB layout and to be implemented in Project Aura IEM Board - Datasheet URL: https://www.knowles.com/docs/default-source/default-document-library/receiver-datasheet-ci-22955-000-1efdd1a731dff6ddbb37cff0000940c19.pdf?Status=Master&sfvrsn=0 - Manufacturer Part Number: CI-22955-000 - Functional Group: Acoustic Drivers - Mount: Solder **Pins:** - N [pin 1] - P [pin 2] ### SPK3 — TWFK-30017-000 - Functional Group: Acoustic Drivers - Role Details: IEM-side tweeter BA receiver; excluded from hook PCB layout and to be implemented in Project Aura IEM Board - Datasheet URL: https://www.knowles.com/docs/default-source/default-document-library/tw-datasheet.pdf?Status=Master&sfvrsn=521a77b1_0 - Manufacturer Part Number: TWFK-30017-000 - Role: Amplification - Package or Case Code: Module - Manufacturer Name: Knowles - Mount: Solder - Exclude from PCB: true **Pins:** - TERMINAL_1 [pin 1] - TERMINAL_2 [pin 2] ### SW1 — [TS-1088-AR02016](https://www.flux.ai/lcsc/ts-1088-ar02016~e3n1.md) - LCSC Part Number: C720477 - Package or Case Code: SW-SMD_L3.9-W3.0-P4.45 - Role Details: Momentary normally-open DFU/boot input button to ground - Role: Switching - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302330_XUNPU-TS-1088-AR02016_C720477.pdf - Manufacturer Name: XUNPU(讯普) - Part Type: Tactile Switches - Functional Group: User / Debug - Product Info Url: https://lcsc.com/product-detail/Tactile-Switches_XUNPU-TS-1088-AR02016_C720477.html - Manufacturer Part Number: TS-1088-AR02016 **Pins:** - 1 [pin 1] - 2 [pin 2] ### TP1 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Part Type: Test Point - Role Details: SWDIO debug test pad - Functional Group: Debug / Test - Role: Protection - Testpoint Size: 0.5 **Pins:** - P1 [pin 1] ### TP2 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Role Details: SWDCLK debug test pad - Part Type: Test Point - Role: Protection - Functional Group: Debug / Test - Testpoint Size: 0.5 **Pins:** - P1 [pin 1] ### TP3 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Functional Group: Debug / Test - Role Details: nRF5340 reset test pad - Testpoint Size: 0.5 - Part Type: Test Point - Role: Protection **Pins:** - P1 [pin 1] ### TP4 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Part Type: Test Point - Role: Protection - Testpoint Size: 0.5 - Functional Group: Debug / Test - Role Details: Ground reference test pad for SWD/probing **Pins:** - P1 [pin 1] ### TP5 — [Generic Testpoint](https://www.flux.ai/jharwinbarrozo/generic-testpoint~esx.md) - Testpoint Size: 0.5 - Functional Group: Debug / Test - Role: Protection - Role Details: 3V0 rail measurement test pad - Part Type: Test Point **Pins:** - P1 [pin 1] ### U1 — [NRF5340-CLAA-R7](https://www.flux.ai/adrian95/nrf5340-claa-r7~4d.md) - Package or Case Code: BGA95C35P12X11_439X399X45 - Role Details: nRF5340 host for BLE Audio/control, storage, PMIC policy, and I2S source to CS47L63 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Nordic Semiconductor - Integrated Circuit Type: RF Device - Part Type: Integrated Circuit - Datasheet URL: https://infocenter.nordicsemi.com/pdf/nRF5340_PS_v1.1.pdf - Role: BLE SoC - Manufacturer Part Number: NRF5340-CLAA-R7 - Functional Group: Compute / Wireless **Pins:** - ANT [pin D1] - AVSS_1 [pin G5] - AVSS_2 [pin K6] - AVSS_3 [pin K11] - D- [pin A11] - D+ [pin A12] - DCC [pin B6] - DCCD [pin A9] - DCCH [pin D11] - DECA [pin B8] - DECD [pin A7] - DECN [pin B5] - DECR [pin B4] - DECRF [pin B1] - DECUSB [pin C11] - NRESET [pin G2] - P0.00/XL1 [pin F11] - P0.01/XL2 [pin F12] - P0.02/NFC1 [pin G11] - P0.03/NFC2 [pin H12] - P0.04/AIN0 [pin G10] - P0.05/AIN1 [pin F10] - P0.06/AIN2 [pin H10] - P0.07/AIN3 [pin J10] - P0.08/TRACEDATA3/SCK [pin L12] - P0.09/TRACEDATA2/MOSI [pin J9] - P0.10/TRACEDATA1/MISO [pin J8] - P0.11/TRACEDATA0/CSN [pin J7] - P0.12/TRACECLK/DCX [pin J6] - P0.13/IO0 [pin K10] - P0.14/IO1 [pin K9] - P0.15/IO2 [pin L9] - P0.16/IO3 [pin K8] - P0.17/SCK [pin L7] - P0.18/CSN [pin K7] - P0.19 [pin J5] - P0.20 [pin K5] - P0.21 [pin J4] - P0.22 [pin K4] - P0.23 [pin H3] - P0.24 [pin K2] - P0.25/AIN4 [pin L1] - P0.26/AIN5 [pin J2] - P0.27/AIN6 [pin H1] - P0.28/AIN7 [pin E3] - P0.29 [pin E2] - P0.30 [pin C4] - P0.31 [pin C5] - P1.00 [pin D10] - P1.01 [pin E10] - P1.02/TWI [pin J11] - P1.03/TWI [pin K12] - P1.04 [pin K3] - P1.05 [pin L3] - P1.06 [pin J3] - P1.07 [pin G3] - P1.08 [pin F3] - P1.09 [pin H2] - P1.10 [pin E4] - P1.11 [pin C6] - P1.12 [pin C7] - P1.13 [pin C8] - P1.14 [pin C9] - P1.15 [pin C10] - SWDCLK [pin F2] - SWDIO [pin F1] - VBUS [pin B11] - VDD_1 [pin A3] - VDD_2 [pin B7] - VDD_3 [pin B10] - VDD_4 [pin D2] - VDD_5 [pin E11] - VDD_6 [pin H11] - VDD_7 [pin K1] - VDD_8 [pin L5] - VDD_9 [pin L11] - VDDH [pin B12] - VSS_1 [pin A5] - VSS_10 [pin F5] - VSS_11 [pin F6] - VSS_12 [pin F7] - VSS_13 [pin F8] - VSS_14 [pin G6] - VSS_15 [pin G7] - VSS_16 [pin G8] - VSS_2 [pin B2] - VSS_3 [pin B9] - VSS_4 [pin C2] - VSS_5 [pin D12] - VSS_6 [pin E5] - VSS_7 [pin E6] - VSS_8 [pin E7] - VSS_9 [pin E8] - XC1 [pin A1] - XC2 [pin A2] ### U10 — [TLV62568DRL](https://www.flux.ai/kicad-part-library/tlv62568drl~4se.md) - Functional Group: Power - Role Details: Dedicated 3V0 buck replaces nPM1100 150mA buck for main rail; VOUT set by 400k/100k FB divider - Manufacturer Part Number: TLV62568DRL - Package or Case Code: SOT-563 - Datasheet URL: http://www.ti.com/lit/ds/symlink/tlv62568.pdf - Role: Power Conversion - Manufacturer Name: Texas Instruments Inc. **Pins:** - EN [pin 5] - FB [pin 1] - GND [pin 2] - NC [pin 6] - SW [pin 4] - VIN [pin 3] ### U2 — [CS47L63-CWZR](https://www.flux.ai/adrian95/cs47l63-cwzr~wd1.md) - Role: Audio DSP / Codec - Role Details: CS47L63 receives nRF5340 stereo I2S and emits digital ASP/TDM to three MAX98360A amps; analog OUTP/OUTN not used for MAX98360A input - Functional Group: Audio DSP / Front-End - Manufacturer Part Number: CS47L63-CWZR - Manufacturer Name: Cirrus Logic Inc. - Part Type: Integrated Circuit - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://statics.cirrus.com/pubs/proDatasheet/CS47L63_DS1249F2.pdf **Pins:** - AS[1_DOUT/GPIO1 [pin J7] - ASP1_BCLK/GPIO3N [pin K10] - ASP1_DIN/GPIO2 [pin J9] - ASP1_FSYNC/GPIO4 [pin J11] - ASP2_BCLK/GPIO7 [pin K2] - ASP2_DIN/GPIO6 [pin J3] - ASP2_DOUT/GPIO5 [pin J5] - ASP2_FSYNC/GPIO8 [pin K6] - GND_A [pin B10] - GND_A [pin C9] - GND_D [pin F2] - GND_D [pin K8] - GND_D [pin K4] - GND_SUB [pin E7] - IN1_PDMCLK [pin F4] - IN1+PDMDATA [pin E1] - IN1LN_1 [pin C5] - IN1LN_2 [pin E3] - IN1LP_1 [pin D4] - IN1LP_2 [pin E5] - IN1RN [pin B4] - IN1RP [pin A5] - IN2_PDMCLK [pin C1] - IN2_PDMDATA [pin A1] - IN2LN [pin D2] - IN2LP [pin C3] - IN2RN [pin A3] - IN2RP [pin B2] - IRQ [pin F10] - LDO_FILT [pin C7] - MCLK1 [pin L9] - MCLK2 [pin L5] - MICBIAS1A [pin D6] - MICBIAS1B [pin B6] - MICBIAS1C [pin A7] - NC [pin L11] - NC [pin H6] - NC [pin E9] - NC [pin G5] - NC [pin G7] - NC [pin L1] - NC [pin F6] - NC [pin E11] - OUTN [pin B8] - OUTP [pin A9] - RESET [pin F8] - SPI1_MISO/I2C1_SCL [pin G11] - SPI1_MOSI/I2C1_SDA [pin G9] - SPI1_SCK [pin H10] - SPI1_SS [pin H8] - SPI2_MISO/I2C2_SCL/GPIO11 [pin J1] - SPI2_MOSI/I2C2_SDA/GPIO12 [pin H4] - SPI2_SCK/GPIO10 [pin H2] - SPI2_SS/GPIO9 [pin G3] - VDD_A [pin A11] - VDD_D [pin L7] - VDD_D [pin G1] - VDD_IO [pin L3] - VDD_LDO [pin D10] - VREF1_FILT [pin D8] - VREF2_FILT [pin C11] ### U3 — [MAX98360AEFB+T](https://www.flux.ai/adrian95/max98360aefbplust~r40.md) - Exclude from PCB: true - Part Type: Integrated Circuit - Functional Group: Audio Output - Role Details: IEM-side MAX98360A woofer amp; excluded from hook PCB layout and to be implemented in Project Aura IEM Board - Manufacturer Name: Analog Devices Inc./Maxim Integrated - Datasheet URL: https://www.analog.com/media/en/technical-documentation/data-sheets/MAX98360A-MAX98360D.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Role: Digital Audio Amplifier - Manufacturer Part Number: MAX98360AEFB+T **Pins:** - DAI0 [pin 9] - DAI1 [pin 10] - DAI2 [pin 8] - EN [pin 6] - GAIN_SLOT [pin 7] - GND_1 [pin 1] - GND_2 [pin 5] - OUTN [pin 3] - OUTP [pin 2] - VDD [pin 4] ### U4 — [MAX98360AEFB+T](https://www.flux.ai/adrian95/max98360aefbplust~r40.md) - Role Details: IEM-side MAX98360A mid amp; excluded from hook PCB layout and to be implemented in Project Aura IEM Board - Part Type: Integrated Circuit - Manufacturer Name: Analog Devices Inc./Maxim Integrated - Datasheet URL: https://www.analog.com/media/en/technical-documentation/data-sheets/MAX98360A-MAX98360D.pdf - Role: Digital Audio Amplifier - Manufacturer Part Number: MAX98360AEFB+T - Exclude from PCB: true - Functional Group: Audio Output - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - DAI0 [pin 9] - DAI1 [pin 10] - DAI2 [pin 8] - EN [pin 6] - GAIN_SLOT [pin 7] - GND_1 [pin 1] - GND_2 [pin 5] - OUTN [pin 3] - OUTP [pin 2] - VDD [pin 4] ### U5 — [MAX98360AEFB+T](https://www.flux.ai/adrian95/max98360aefbplust~r40.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: MAX98360AEFB+T - Manufacturer Name: Analog Devices Inc./Maxim Integrated - Datasheet URL: https://www.analog.com/media/en/technical-documentation/data-sheets/MAX98360A-MAX98360D.pdf - Part Type: Integrated Circuit - Role Details: IEM-side MAX98360A tweeter amp; excluded from hook PCB layout and to be implemented in Project Aura IEM Board - Functional Group: Audio Output - Exclude from PCB: true - Role: Digital Audio Amplifier **Pins:** - DAI0 [pin 9] - DAI1 [pin 10] - DAI2 [pin 8] - EN [pin 6] - GAIN_SLOT [pin 7] - GND_1 [pin 1] - GND_2 [pin 5] - OUTN [pin 3] - OUTP [pin 2] - VDD [pin 4] ### U6 — [NPM1100-QDAA-R7](https://www.flux.ai/adrian95/npm1100-qdaa-r7.md) - Symbol Style: parametric-v1 - Role Details: nPM1100 charger and buck regulator; rail/current sizing pending full power budget - Part Type: Integrated Circuits - Manufacturer Name: Nordic Semiconductor - Manufacturer Part Number: NPM1100-QDAA-R7 - Package or Case Code: QFN - Role: PMIC / Charger - Functional Group: Power - License: https://creativecommons.org/licenses/by/4.0/ - Implementation Details: Datasheet URL: https://docs-be.nordicsemi.com/bundle/nPM1100_PS_v1.4/raw/resource/enus/nPM1100_PS_v1.4.pdf - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/09cef7deaba14c4dd4da1e0a79cecf914986ef0b2ec42ecc478e885d93a36202.pdf **Pins:** - AVSS [pin 4] - AVSS_EP [pin 25] - CHG [pin 8] - D- [pin 19] - D+ [pin 20] - DEC [pin 21] - ERR [pin 10] - ICHG [pin 12] - ISET [pin 5] - MODE [pin 7] - NC_2 [pin 13] - NC_3 [pin 18] - NC_4 [pin 24] - NTC [pin 14] - PVSS [pin 23] - SHPACT [pin 6] - SHPHLD [pin 11] - SW [pin 22] - VBAT [pin 15] - VBUS [pin 17] - VOUTB [pin 1] - VOUTBSET0 [pin 3] - VOUTBSET1 [pin 2] - VSYS [pin 16] - VTERMSET [pin 9] ### U7 — [W25Q01JVZEIQ](https://www.flux.ai/adrian95/w25q01jvzeiq~wnm.md) - Functional Group: Storage - Manufacturer Part Number: W25Q01JVZEIQ - Role Details: External storage on nRF5340 QSPI bus - Datasheet URL: https://www.winbond.com/resource-files/W25Q01JV%20SPI%20RevB%2011132019.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Role: QSPI Flash - Manufacturer Name: Winbond Electronics - Part Type: Integrated Circuit **Pins:** - ~CS [pin 1] - ~HOLD_OR_~RESET_(IO3) [pin 7] - ~WP_(IO2) [pin 3] - CLK [pin 6] - DI_(IO0) [pin 5] - DO_(IO1) [pin 2] - EP [pin 9] - GND [pin 4] - VCC [pin 8] ### U8 — [TPS79318-EP](https://www.flux.ai/kicad-part-library/tps79318-ep~318.md) - Manufacturer Name: Texas Instruments Inc. - Role: Power Conversion - Package or Case Code: SOT-23-5 - Manufacturer Part Number: TPS79318-EP - Datasheet URL: http://www.ti.com/lit/ds/symlink/tps79333-ep.pdf - Role Details: 3V0 to 1V8_A low-noise LDO for CS47L63 VDD_A; 200mA rating, 170uA IQ typ - Functional Group: Power **Pins:** - BP [pin 4] - EN [pin 3] - GND [pin 2] - IN [pin 1] - OUT [pin 5] ### U9 — [TLV70012_SOT23-5](https://www.flux.ai/kicad-part-library/tlv70012sot23-5~sg.md) - Role: Power Conversion - Role Details: 3V0 to 1V2_D LDO for CS47L63 core/FLL supply; 200mA rating, 31uA IQ typ - Package or Case Code: SOT-23-5 - Manufacturer Name: Texas Instruments Inc. - Functional Group: Power - Manufacturer Part Number: TLV70012_SOT23-5 - Datasheet URL: http://www.ti.com/lit/ds/symlink/tlv700.pdf **Pins:** - EN [pin 3] - GND [pin 2] - IN [pin 1] - NC [pin 4] - OUT [pin 5] ### Y1 — MP06003 - Mount: Surface Mount - Role Details: 32 MHz, 8pF, 2016 reference-design crystal for nRF5340 HFXO - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/f009e7d4705f9c5cee3a0b26ca36c9bd50bfba98fee05d51105a8835c022cda5.pdf - Part Type: Crystals and Oscillators - Frequency: 32MHz - Role: Timing - Package or Case Code: CRYSTAL-SMD - Manufacturer Part Number: MP06003 - Manufacturer Name: Golledge Electronics Ltd - Functional Group: Clock / RF **Pins:** - GND [pin 4] - GND [pin 2] - XTAL1 [pin 1] - XTAL2 [pin 3] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/vcabieles/project-aura-hearing-device~3s](https://www.flux.ai/vcabieles/project-aura-hearing-device~3s).* --- *Generated from [https://www.flux.ai/vcabieles/project-aura-hearing-device~3s](https://www.flux.ai/vcabieles/project-aura-hearing-device~3s)*