2 layers58.4 × 28.6 mm
2 layers69.3 × 32.3 mm
Oscillators
level-two/mfos-experimenter-boardPCBs for MFOS DIY Experimenter Board
- Size
- 69.3 × 32.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 51
- Nets
- 43
- Pads
- 148
- Tracks, vias
- 377, 14
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 1 Jan 2020
- Updated
- 18 Jan 2021
Overview
Oscillators is an open-source printed circuit board by level-two, from the level-two/mfos-experimenter-board repository on GitHub. It is a 2-layer board of 69.3 × 32.3 mm with 51 parts on 43 nets, routed with 377 tracks and 14 vias.
It is built around the LM3900D and MMBT3904. Its parts include 38 resistors, 6 capacitors, 3 connectors, 2 ICs and 2 transistors.
Main components
2
LM3900D
SOIC-14-16V~-2.2V、2.2V~16V 0℃~+70℃ 10mA 10mA 2.5MHz 200nA 20V/us 4 4.5V~32V 6.2mA 70dB Built-in compensation SOIC-14 Operational Amplifier ROHSTexas InstrumentsOperational Amplifier
MMBT3904
SOT-23-55℃~+150℃ 1 NPN 100 100nA 200mA 200mW 300MHz 300mV 40V 6V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)
Parts
51| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 20k | Resistor_SMD:R_0402_1005Metric | R2, R9, R11, R15, R21, R28, R30, R34 |
| 6 | 100k | Resistor_SMD:R_0402_1005Metric | R1, R5, R12, R20, R24, R31 |
| 6 | 1k | Resistor_SMD:R_0402_1005Metric | R13, R16, R17, R32, R35, R36 |
| 6 | 270k | Resistor_SMD:R_0402_1005Metric | R3, R4, R19, R22, R23, R38 |
| 4 | 15k | Resistor_SMD:R_0402_1005Metric | R10, R14, R29, R33 |
| 2 | .01uF | Capacitor_SMD:C_0402_1005Metric | C1, C4 |
| 2 | .1uF | Capacitor_SMD:C_0603_1608Metric | C2, C3 |
| 2 | 10k | Resistor_SMD:R_0402_1005Metric | R7, R26 |
| 2 | 10u | Capacitor_SMD:C_Elec_6.3x5.4 | C5, C6 |
| 2 | 200k | Resistor_SMD:R_0402_1005Metric | R18, R37 |
| 2 | 62k | Resistor_SMD:R_0402_1005Metric | R8, R27 |
| 2 | 7.5k | Resistor_SMD:R_0402_1005Metric | R6, R25 |
| 2 | Conn_01x03 | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Horizontal | J2, J3 |
| 2 | MMBT3904 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 1 | Conn_02x09_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x10_P2.54mm_Horizontal | J1 |
| 1 | LM3900 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | IC1 |
| 1 | TL074 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U1 |
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Questions
How big is the Oscillators PCB?
It measures 69.3 × 32.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Oscillators use?
51 parts, built around the LM3900D and MMBT3904. 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 Oscillators KiCad files?
From the level-two/mfos-experimenter-board repository on GitHub, at the commit this page was made from: the board is Oscillators/Oscillators.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Oscillators design in my own project?
Its repository states no licence, so its author keeps all rights: ask level-two before reusing the design.