4 layers20.3 × 68.6 mm
Carrier
samlittlewood/caravel_carrier
Carrier for efabless Caravel chip used for Google/Skywater 130nm shuttle program.
30 parts18MIT
4 layers20.3 × 68.6 mm
Breakout carrier for the MPW1 PyFive chip
- Size
- 20.3 × 68.6 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 68
- Nets
- 95
- Pads
- 331
- Tracks, vias
- 0, 0
- Pours
- 6
- Routed
- Not yet
- KiCad
- KiCad 5 (file 20210824)
- Created
- 7 Sep 2021
- Updated
- 29 Sep 2021
Overview
Carrier is an open-source printed circuit board by PyFive-RISC-V, from the PyFive-RISC-V/pyfive-mpw1-pcb repository on GitHub, published under the MIT licence. It is a 4-layer board of 20.3 × 68.6 mm with 68 parts on 95 nets.
It is built around the OPA340NA, W25Q128JVSIQ and LP5907MFX-1.8, with the LP5907MFX-3.3, ESDS312DBVR-TP and TYPE-C-31-M-12 among its other parts. Its parts include 20 capacitors, 14 resistors, 13 connectors, 8 ICs and 6 switches.
Main components
6
OPA340NA
SOT-23-5SOT-23-5 Operational Amplifier ROHSTexas InstrumentsOperational Amplifier
W25Q128JVSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 120ms@(32KB) 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASHLP5907MFX-1.8
SOT-23-5-40℃~+125℃@(Tj) 1 1.8V 120mV@(250mA) 12uA 250mA 5.5V 6.5uVrms 82dB@(1kHz) Fixed Positive Under Voltage Lockout、Over Temperature Protection、Enable、Short Circuit Protection SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsLP5907MFX-3.3
SOT-23-5-40℃~+125℃@(Tj) 1 10uVrms 12uA 250mA 250mV@(250mA) 3.3V 5.5V 82dB@(1kHz) Fixed Positive Short Circuit Protection、Thermal shutdown、Enable control、Input under-voltage protection、Output discharge SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsESDS312DBVR-TP
SOT-23-5SOT-23-5 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICUncategorised
TYPE-C-31-M-12
SMD-30℃~+80℃ 1 10,000 cycles 16P 20V 5A 7.35mm Female Surface Mount, Right Angle Type-C SMD USB Connectors ROHSHRO ElectronicsUSB Connectors
README
README.mdpyfive-mpw1-pcb
Breakout carrier for the MPW1 PyFive chip
PyFive specific pins
- mprj_io[11] = usb_dn
- mprj_io[12] = usb_dp
- mprj_io[13] = usb_pu
- mprj_io[14] = usb_sof
- mprj_io[15] = midi_tx
- mprj_io[16] = midi_rx
- mprj_io[17] = pcm_audio_1
- mprj_io[18] = pcm_audio_2
- mprj_io[19] = video_clk
- mprj_io[20] = video_de
- mprj_io[21] = video_hsync
- mprj_io[22] = video_vsync
- mprj_io[23] = video_r
- mprj_io[24] = video_g
- mprj_io[25] = video_b
- mprj_io[26] = video_i
Features
- Input current jumpers
- External clock input header
- 2.54" programming headers
- PCM => RC filter => op-amp => headphone jack
- Header for video output to DVI PMOD
- Buttons
Based on the caravel_carrier design by Sam Littlewood.
Parts
68| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 22n | Capacitor_SMD:C_0402_1005Metric | C9, C10, C11, C12, C13, C14, C15, C16 |
| 7 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J5, J6, J7, J8, J9, J10, J11 |
| 6 | 10k Ohm | Resistor_SMD:R_0402_1005Metric | R9, R10, R11, R12, R13, R14 |
| 6 | SW_Push | Button_Switch_SMD:SW_Push_1P1T_NO_CK_KMR2 | SW1, SW2, SW3, SW4, SW5, SW6 |
| 4 | 100n | Capacitor_SMD:C_0402_1005Metric | C18, C19, C20, C21 |
| 4 | 1u | Capacitor_SMD:C_0603_1608Metric | C1, C2, C5, C6 |
| 4 | 4u7 | Capacitor_SMD:C_0603_1608Metric | C3, C4, C7, C8 |
| 4 | ESDS312DBVR | Package_TO_SOT_SMD:SOT-23-5 | D1, D2, D3, D4 |
| 2 | 100 Ohm | Resistor_SMD:R_0402_1005Metric | R7, R8 |
| 2 | 22 Ohm | Resistor_SMD:R_0402_1005Metric | R2, R3 |
| 2 | 5k1 Ohm | Resistor_SMD:R_0402_1005Metric | R4, R5 |
| 2 | Conn_01x26 | Connector_PinHeader_2.54mm:PinHeader_1x26_P2.54mm_Vertical | J2, J3 |
| 2 | LP5907MFX-1.8 | Package_TO_SOT_SMD:SOT-23-5 | U4, U5 |
| 2 | LP5907MFX-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U3, U6 |
| 2 | OPA340NA | Package_TO_SOT_SMD:SOT-23-5 | U8, U9 |
| 1 | 1.5k Ohm | Resistor_SMD:R_0402_1005Metric | R6 |
| 1 | 1M Ohm | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | AudioJack3_SwitchTR | Connector_Audio:Jack_3.5mm_CUI_SJ1-3535NG_Horizontal_CircularHoles | J12 |
| 1 | CARAVEL | carrier:WLCSP-60_P0.5mm | U1 |
| 1 | Conn_02x06_Odd_Even | Connector_PinSocket_2.54mm:PinSocket_2x06_P2.54mm_Horizontal | J13 |
| 1 | Conn_02x06_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Vertical | J1 |
| 1 | SG-5032CAN | Oscillator:Oscillator_SMD_SeikoEpson_SG8002LB-4Pin_5.0x3.2mm | X1 |
| 1 | SolderJumper_3_Bridged12 | Jumper:SolderJumper-3_P1.3mm_Bridged12_Pad1.0x1.5mm | JP1 |
| 1 | TYPE-C-31-M-12 | HRO_TYPE-C-31-M-12:HRO_TYPE-C-31-M-12 | J4 |
| 1 | TestPoint | TestPoint:TestPoint_Keystone_5000-5004_Miniature | TP1 |
| 1 | W25Q128JVS | Package_SO:SOIC-8_5.23x5.23mm_P1.27mm | U2 |
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Questions
How big is the Carrier PCB?
It measures 20.3 × 68.6 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Carrier use?
68 parts, built around the OPA340NA, W25Q128JVSIQ, LP5907MFX-1.8 and LP5907MFX-3.3. 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 Carrier KiCad files?
From the PyFive-RISC-V/pyfive-mpw1-pcb repository on GitHub, at the commit this page was made from: the board is carrier.kicad_pcb and its schematic carrier.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Carrier design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).