2 layers288.5 × 91.5 mm
OTTO Beta Aux
bitfieldaudio/otto-hardware
OTTO hardware files for upcoming beta. WORK IN PROGRESS
186 parts37
4 layers288.5 × 95 mm
OTTO Beta Main
bitfieldaudio/otto-hardware37OTTO hardware files for upcoming beta. WORK IN PROGRESS
- Size
- 288.5 × 95 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 331
- Nets
- 227
- Pads
- 1,296
- Tracks, vias
- 2,947, 559
- Pours
- 20
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 3 Dec 2019
- Updated
- 15 Jan 2023
Overview
OTTO Beta Main is an open-source printed circuit board by bitfieldaudio, from the bitfieldaudio/otto-hardware repository on GitHub. It is a 4-layer board of 288.5 × 95 mm with 331 parts on 227 nets, routed with 2,947 tracks and 559 vias.
It is built around the TPS5430DDA, AMS1117-3.3 and SN74HC14D, with the SRV05-4, SM4007PL and PJ-3930-8A among its other parts. Its parts include 70 capacitors, 70 diodes, 58 switches, 57 resistors and 11 connectors. It belongs with the STM32 boards of this library.
Main components
9
TPS5430DDA
ESOP-8-40℃~+125℃@(TJ) 1 1.221V~32.04V 3A 4.4mA 5.5V~36V 500kHz Adjustable Buck Buck Built-in No ESOP-8 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
SN74HC14D
SOIC-14-40℃~+85℃ 1 1.5V~4.2V 21ns@6V,50pF 2V~6V 2uA 300mV~1.2V 5.2mA 5.2mA 6 74HC Series Schmitt trigger SOIC-14 Inverters ROHSTexas InstrumentsInverters
SRV05-4
SOT-23-6L-55℃~+150℃ 15V 1pF 4A 5V 5uA 6V 80W ESD Four channels IEC 61000-4-2、IEC 61000-4-5 Unidirectional SOT-23-6L ESD and Surge Protection (TVS/ESD) ROHShongjiachengESD And Surge Protection (TVS/ESD)
SM4007PL
SOD-123FL-55℃~+150℃ 1.1V@1A 10uA@1kV 1A 1kV 25A Independent SOD-123FL Diodes - General Purpose ROHSMDDDiodes - General Purpose
PJ-3930-8A
插件3.5mm Headphone Jack 30V 500mA Gold Phosphor bronze 插件 Audio Connectors ROHSHRO ElectronicsAudio Connectors (Headphones)
SS34
SMA(DO-214AC)-55℃~+125℃ 3A 40V 500uA@40V 550mV@3A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
1N4148W
SOD-123150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHSSTMicroelectronicsSwitching Diodes
AO4407A
SOP-8-55℃~+150℃ 1 P-Channel 1.8V 14A 2.05nF 20nC@4.5V、40nC@10V 3.1W 300pF 30V 330pF 9.5mΩ@10V、14.7mΩ@4.5V SOP-8 MOSFETs ROHSUMWMOSFETs
README
README.mdDescription
otto-hw-beta is the hardware design for the OTTO beta circuit board. The design is implemented in KiCad.
Target Outputs
By Beta formal release, the target output files will be the following: Schematic Layout Fabrication Gerber Copper Layers Soldermask Silkscreen Drill Assembly Gerber Paste Mask Component/Pin-XY Data Bill of Materials Installed/Not-Installed Part Numbers Purchase Reference links Est. Cost
Parts
331| Qty | Value | Footprint | References |
|---|---|---|---|
| 58 | SM4007PL | Diode_SMD:D_SOD-123F | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D202, D203, D204 +42 |
| 28 | 6x6x13mm | OTTO_Footprints_Lib:6x6mm_Switch | SW27, SW28, SW29, SW30, SW31, SW32, SW33, SW34, SW35, SW36, SW37, SW38, SW39, SW40, SW41, SW42 +12 |
| 27 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C4, C48, C49, C50, C51, C52, C53, C54, C55, C56, C60, C61, C62, C63, C64, C65 +11 |
| 16 | ALPS SKHC | OTTO_Footprints_Lib:ALPS_SKHC_white | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12, SW13, SW14, SW15, SW16 |
| 12 | Fiducial | Fiducial:Fiducial_1mm_Mask2mm | FID1, FID2, FID3, FID4, FID5, FID6, FID7, FID8, FID9, FID10, FID11, FID12 |
| 10 | 33 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R213, R215, R231, R232, R233, R234, R235, R236, R237, R238 |
| 10 | ALPS SKHC | OTTO_Footprints_Lib:ALPS_SKHC_black | SW17, SW18, SW19, SW20, SW21, SW22, SW23, SW24, SW25, SW26 |
| 9 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C3, C243, C246, C247, C250, C260, C261, C264 |
| 9 | TestPoint | TestPoint:TestPoint_THTPad_D1.0mm_Drill0.5mm | TP1, TP2, TP7, TP8, TP9, TP15, TP16, TP17, TP18 |
| 8 | 47k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R4, R203, R204, R221, R225, R228, R229, R230 |
| 6 | 6V BI TVS | Diode_SMD:D_SOD-123F | D50, D51, D52, D53, D55, D56 |
| 6 | PJ-3930-8A | OTTO_Footprints_Lib:3.5mm_jack_PJ-3930-8A | TRS201, TRS202, TRS203, TRS204, TRS205, TRS206 |
| 5 | 0 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R2, R3, R17, R19 |
| 5 | 100k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R13, R16, R18, R20, R26 |
| 5 | 1uF (AUDIO) | OTTO_Footprints_Lib:C_Rect_L7.2mm_W5.0mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C251, C253, C254, C255, C257 |
| 5 | 220uF | OTTO_Footprints_Lib:CP_Elec_6.3x4.5 | C79, C81, C84, C258, C262 |
| 5 | MountingHole | OTTO_Footprints_Lib:Mounting_Hole_M2.5_Loose_Fit | H201, H202, H203, H204, H205 |
| 5 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad_Via | H1, H2, H3, H4, H5 |
| 4 | 10nF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C2, C5, C6, C87 |
| 4 | 2.2k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R202, R205, R206, R207 |
| 4 | 30pF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C204, C205, C265, C266 |
| 4 | 5.1k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R218, R219, R222, R224 |
| 4 | ALPS EC11E183440C | OTTO_Footprints_Lib:ALPS_EC11 | ENC1, ENC2, ENC3, ENC4 |
| 4 | Conn_02x05 | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | J3, J4, J5, J6 |
| 3 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R14, R29, R30 |
| 3 | 220pF (C0G) | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C252, C256, C259 |
| 3 | 47uF | Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C9, C10, C11 |
| 3 | Tooling Hole | OTTO_Footprints_Lib:JLC_TOOLING_HOLE | H101, H102, H103 |
| 2 | 10 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R212, R214 |
| 2 | 100 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R220, R223 |
| 2 | 10uf Tantalum | OTTO_Footprints_Lib:CP_EIA-3216-18_Kemet-A_Pad1.58x1.35mm_HandSolder | C267, C268 |
| 2 | 15pF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C96, C97 |
| 2 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C218, C219 |
| 2 | 2.2uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C221, C222 |
| 2 | 330 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R28, R227 |
| 2 | 4.7K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R6, R7 |
| 2 | SS34 | Diode_SMD:D_SMA | D54, D65 |
| 2 | SW_DIP_x02 | OTTO_Footprints_Lib:SW_DIP_SPSTx02_Slide_HRO_EP-02KS | SW48, SW202 |
| 1 | 12.288MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y203 |
| 1 | 12k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R10 |
| 1 | 13k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R15 |
| 1 | 15V BI TVS | Diode_SMD:D_SOD-123F | D48 |
| 1 | 15V ZENER | Diode_SMD:D_SOD-123 | D49 |
| 1 | 15uH | OTTO_Footprints_Lib:L_6.6x7.1 | L1 |
| 1 | 180k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R12 |
| 1 | 1N4148W | Diode_SMD:D_SOD-123 | D206 |
| 1 | 1nF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C8 |
| 1 | 220 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R217 |
| 1 | 25MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y201 |
| 1 | 270 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R216 |
| 1 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | 3.3k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R9 |
| 1 | 30k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R5 |
| 1 | 32.768kHz | OTTO_Footprints_Lib:Crystal_SMD_3215-2Pin_3.2x1.5mm_HandSoldering | Y202 |
| 1 | 4.3k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R11 |
| 1 | 4.7uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C211 |
| 1 | 5.2x5.2x1.5mm | OTTO_Footprints_Lib:SW_SPST_5.2x5.2x1.5mm | SW201 |
| 1 | 6.8uH | Inductor_SMD:L_Sunlord_MWSA0518_5.4x5.2mm | L2 |
| 1 | 680 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R226 |
| 1 | 68k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R8 |
| 1 | 6N137 | Package_DIP:DIP-8_W8.89mm_SMDSocket_LongPads | U201 |
| 1 | AMS1117-3.3 | OTTO_Footprints_Lib:SOT-223-3_TabPin2 | U208 |
| 1 | AO4407A | OTTO_Footprints_Lib:SOIC-8_3.9x4.9mm_P1.27mm | Q1 |
| 1 | Barrel Jack, 2.0mmID, 6.5mmOD | OTTO_Footprints_Lib:BarrelJack_2.0mmID_6.5mmOD | DC201 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J9 |
| 1 | Conn_01x20 | OTTO_Footprints_Lib:X10B25L20T_FPC_1x20-1MP_P1.00mm_Horizontal | J7 |
| 1 | Conn_02x03 | OTTO_Footprints_Lib:Harwin_M20-7810345_2x03_P2.54mm_Vertical_SolderHoles | J207 |
| 1 | Conn_02x04 | Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical | J2 |
| 1 | Conn_02x06 | OTTO_Footprints_Lib:Harwin_M20-7810645_2x06_P2.54mm_Vertical_SolderHoles | J206 |
| 1 | Conn_ARM_JTAG_SWD_10 | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical_SMD | J1 |
| 1 | Microphone | OTTO_Footprints_Lib:INGHAi_GMI6050p | MK201 |
| 1 | Net-Tie_2 | OTTO_Footprints_Lib:NetTie-2_Pad5.0mm | NT1 |
| 1 | RED LED | LED_SMD:LED_0603_1608Metric | D57 |
| 1 | Raspberry Pi Connector | OTTO_Footprints_Lib:Raspberry_Pi_A_FacingDown_TH | J201 |
| 1 | SN74HC14 | OTTO_Footprints_Lib:SOIC-14_3.9x8.7mm_P1.27mm | U205 |
| 1 | SRV05-4 | OTTO_Footprints_Lib:SOT-23-6 | U204 |
| 1 | STM32F407VGTx | OTTO_Footprints_Lib:LQFP-100_14x14mm_P0.5mm | U202 |
| 1 | SW_DPDT_x2 | OTTO_Footprints_Lib:SSAC120100 | SW49 |
| 1 | TPS22918_SOT23-6_A | OTTO_Footprints_Lib:SOT-23-6 | U5 |
| 1 | TPS5430DDA | OTTO_Footprints_Lib:TI_SO-PowerPAD-8_ThermalVias | U1 |
The 327 most common of 331 parts.
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Questions
How big is the OTTO Beta Main PCB?
It measures 288.5 × 95 mm and has 4 copper layers, 1.6 mm thick.
What parts does the OTTO Beta Main use?
331 parts, built around the TPS5430DDA, AMS1117-3.3, SN74HC14D and SRV05-4. 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.
Where can I download the OTTO Beta Main KiCad files?
From the bitfieldaudio/otto-hardware repository on GitHub, at the commit this page was made from: the board is KiCad/MainBoard/OTTO-Beta-Main.kicad_pcb and its schematic KiCad/AuxBoard/KEYS+ENCODERS.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the OTTO Beta Main design in my own project?
Its repository states no licence, so its author keeps all rights: ask bitfieldaudio before reusing the design.