2 layers75 × 105 mm
2 layers88 × 55 mm
MicSparkCal
werediver/spark-genA spark generator for microphone calibration
- Size
- 88 × 55 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 35
- Nets
- 53
- Pads
- 118
- Tracks, vias
- 79, 141
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 10 Jun 2024
- Updated
- 10 Jun 2024
Overview
MicSparkCal is an open-source printed circuit board by werediver, from the werediver/spark-gen repository on GitHub. It is a 2-layer board of 88 × 55 mm with 35 parts on 53 nets, routed with 79 tracks and 141 vias.
It is built around the IR4427SPBF, IRF740 and LL4148, with the PMV65UNER among its other parts. Its parts include 12 connectors, 9 capacitors, 5 resistors, 2 ICs and 2 transistors. It belongs with the RP2040 boards of this library.
Main components
4
IR4427SPBF
SOIC-8-40℃~+150℃ 1.5A 1.5A 10ns 15ns 2 9V~20V IGBT、MOSFET Interleaved conduction protection Low Side SOIC-8 Gate Drivers ROHSInfineon TechnologiesGate Drivers
IRF740
TO-220-55℃~+175℃ 1 N-channel 1.162nF 100W 10A 17pF 32nC@10V 400V 4V 500mΩ@10V N-Channel TO-220 MOSFETs ROHSMinosMOSFETs
LL4148
LL-341 Independent 1V@10mA 200mA 4A 4ns 500mW 5uA@75V 75V LL-34 Switching Diodes ROHSMDDSwitching Diodes
PMV65UNER
SOT-23-55℃~+150℃ 1 N-channel 1V 2.8A 20V 291pF 43pF 52pF 6nC@4.5V 73mΩ@4.5V 940mW N-Channel SOT-23 MOSFETs ROHSNexperiaMOSFETs
README
README.mdSpark generator for microphone calibration
Parts
35| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 1n 20kV | Capacitor_THT:C_Rect_L16.5mm_W4.7mm_P15.00mm_MKT | C7, C8, C9 |
| 2 | 1u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C5 |
| 2 | 47u 25V | Capacitor_Tantalum_SMD:CP_EIA-7343-31_Kemet-D_Pad2.25x2.55mm_HandSolder | C2, C4 |
| 1 | +12V | TestPoint:TestPoint_Pad_D1.5mm | TP1 |
| 1 | 0.15 | Resistor_SMD:R_2512_6332Metric | R4 |
| 1 | 0.1u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C6 |
| 1 | 10 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2 |
| 1 | 100 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5 |
| 1 | 100k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 1 | 10u | Capacitor_Tantalum_SMD:CP_EIA-3216-10_Kemet-I_Pad1.58x1.35mm_HandSolder | C3 |
| 1 | BOOST_COMM | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J4 |
| 1 | BOOST_IN_P | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J3 |
| 1 | BOOST_OUT_P | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J5 |
| 1 | Cortex Debug | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical_SMD | J1 |
| 1 | GND_TIE | NetTie:NetTie-2_SMD_Pad2.0mm | NT1 |
| 1 | HV_A | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J12 |
| 1 | HV_B | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J13 |
| 1 | Heatsink_Pad | Custom:HeatSink_TO-220 | HS1 |
| 1 | IR4427S | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | IRF740 | Package_TO_SOT_THT:TO-220-3_Vertical | Q2 |
| 1 | LL4148 | Diode_SMD:D_MiniMELF | D1 |
| 1 | ON/OFF | Connector_Molex:Molex_KK-254_AE-6410-02A_1x02_P2.54mm_Vertical | J2 |
| 1 | PMV65UN | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | PULSE_CUR | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J7 |
| 1 | RP2040-Plus | RP2040_boards:Waveshare_RP2040-Plus_SMD | U1 |
| 1 | TF_P_A | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J8 |
| 1 | TF_P_B | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J9 |
| 1 | TF_S_A | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J10 |
| 1 | TF_S_B | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J11 |
| 1 | ~ | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | ~ | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
Questions
How big is the MicSparkCal PCB?
It measures 88 × 55 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MicSparkCal use?
35 parts, built around the IR4427SPBF, IRF740, LL4148 and PMV65UNER. 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 MicSparkCal KiCad files?
From the werediver/spark-gen repository on GitHub, at the commit this page was made from: the board is KiCad/MicSparkCal/MicSparkCal.kicad_pcb and its schematic KiCad/MicSparkCal/MicSparkCal.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MicSparkCal design in my own project?
Its repository states no licence, so its author keeps all rights: ask werediver before reusing the design.
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