PCB Design for the OAE prototype
Oae is an open-source printed circuit board by ADE-GlobalHealth, from the ADE-GlobalHealth/oae_hardware repository on GitHub. It is a 4-layer board of 76 × 81.2 mm with 115 parts on 96 nets, routed with 858 tracks and 111 vias.
It is built around the PCM1862DBTR. Its parts include 48 capacitors, 32 resistors, 8 connectors, 7 ICs and 4 switches. It belongs with the STM32 boards of this library.
PCB designs for the OAE prototype.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 1uF | Capacitor_SMD:C_0603_1608Metric | C304, C404, C408, C409, C503, C602, C704, C705, C801, C810 |
| 9 | 10uF | Capacitor_SMD:C_0603_1608Metric | C301, C303, C401, C603, C706, C707, C802, C804, C811 |
| 7 | 100nF | Capacitor_SMD:C_0603_1608Metric | C405, C406, C410, C412, C601, C701, C702 |
| 6 | 4.7K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R10, R11, R15, R16, R17, R18 |
| 5 | 1uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C703, C806, C807, C808, C809 |
| 4 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C803, C805 |
| 4 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4 |
| 4 | 2K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R705, R708, R709, R712 |
| 4 | 33 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6, R7, R8, R9 |
| 3 | 100K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R13, R14, R704 |
| 3 | 10nF | Capacitor_SMD:C_0603_1608Metric | C411, C709, C711 |
| 3 | 200 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R503, R504, R505 |
| 3 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C402, C403, C407 |
| 2 | 0 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R12, R301 |
| 2 | 100nF | Capacitor_SMD:C_1206_3216Metric | C708, C710 |
| 2 | 10K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R601, R602 |
| 2 | 20pF | Capacitor_SMD:C_0603_1608Metric | C501, C502 |
| 2 | 499 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R603, R604 |
| 2 | 5.1K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R201, R202 |
| 2 | >2uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C604, C605 |
| 2 | BTN1 | Button_Switch_SMD:SW_SPST_EVPBF | SW1, SW2 |
| 1 | 1A | Fuse:Fuse_1206_3216Metric | F301 |
| 1 | 22uF | Capacitor_SMD:C_0603_1608Metric | C302 |
| 1 | 3V3 | TestPoint:TestPoint_Pad_D2.5mm | TP302 |
| 1 | 8MHz | oae_mod:XTAL_ABMM2-8.000MHZ-E2-T | Y501 |
| 1 | AZ1117-3.3 | Package_TO_SOT_SMD:TO-252-3_TabPin2 | U301 |
| 1 | BMS Connector | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J206 |
| 1 | Bandpass | oae_mod:SOIC127P599X175-8N | U702 |
| 1 | Communication Pins | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J205 |
| 1 | DBG1 | TestPoint:TestPoint_Pad_1.5x1.5mm | TP501 |
| 1 | DBG1 | LED_SMD:LED_0603_1608Metric | D501 |
| 1 | DBG2 | TestPoint:TestPoint_Pad_1.5x1.5mm | TP502 |
| 1 | DBG2 | LED_SMD:LED_0603_1608Metric | D502 |
| 1 | DBG3 | LED_SMD:LED_0603_1608Metric | D503 |
| 1 | DBG3 | TestPoint:TestPoint_Pad_1.5x1.5mm | TP503 |
| 1 | Earpiece Connector | Connector_PinHeader_2.54mm:PinHeader_1x07_P2.54mm_Vertical | J204 |
| 1 | GND | TestPoint:TestPoint_Pad_D2.5mm | TP303 |
| 1 | GPIO Header | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J207 |
| 1 | HDMI_A_1.4 | Connector_HDMI:HDMI_A_Molex_208658-1001_Horizontal | J1 |
| 1 | MIC_AMP | TestPoint:TestPoint_Pad_D2.5mm | TP702 |
| 1 | MIC_BUFF | TestPoint:TestPoint_Pad_D2.5mm | TP701 |
| 1 | MIC_FILTERED | TestPoint:TestPoint_Pad_D2.5mm | TP703 |
| 1 | Opamp_Buffer | oae_mod:SOIC127P599X175-8N | U701 |
| 1 | Opamp_Speaker | oae_mod:SOIC127P599X175-8N | U601 |
| 1 | PCM1862DBT | Capacitor_SMD:C_0603_1608Metric | U1 |
| 1 | Power Terminal | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J201 |
| 1 | Programming Header | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J203 |
| 1 | RST_BTN | Button_Switch_SMD:SW_SPST_EVPBF | SW501 |
| 1 | SPEAKER_A | TestPoint:TestPoint_Pad_D2.5mm | TP602 |
| 1 | SPEAKER_B | TestPoint:TestPoint_Pad_D2.5mm | TP603 |
| 1 | STM32L496RGTx | Package_QFP:LQFP-64_10x10mm_P0.5mm | U3 |
| 1 | SW_SPDT | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | SW502 |
| 1 | TLV320ADC3120IRTER | oae_mod:WQFN20_RTE_TEX | U801 |
| 1 | USB_C_Micro | oae_mod:GCT_USB4105-GF-A | J202 |
| 1 | VBUS | TestPoint:TestPoint_Pad_D2.5mm | TP301 |
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It measures 76 × 81.2 mm and has 4 copper layers, 4.69 mm thick.
115 parts, built around the PCM1862DBTR. 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.
From the ADE-GlobalHealth/oae_hardware repository on GitHub, at the commit this page was made from: the board is oae/oae.kicad_pcb and its schematic oae/adc.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask ADE-GlobalHealth before reusing the design.
