2 layers100 × 100 mm
2 layers100 × 100 mm
Input Board Panel
jensenr30/cad1Schematics, PCBs, Simulations, ...
- Size
- 100 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 380
- Nets
- 50
- Pads
- 912
- Tracks, vias
- 2,716, 164
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 4 May 2019
- Updated
- 11 Oct 2025
Overview
Input Board Panel is an open-source printed circuit board by jensenr30, from the jensenr30/cad repository on GitHub. It is a 2-layer board of 100 × 100 mm with 380 parts on 50 nets, routed with 2,716 tracks and 164 vias.
It is built around the TL084, 74HC14 and 78L05, with the BC847CW among its other parts. Its parts include 136 resistors, 92 capacitors, 56 connectors, 36 transistors and 20 ICs.
Main components
4
TL084
SOP-14-18V~18V 0℃~+70℃ 1.4mA 16V/us 20nA 3mV 4MHz 4nA 60mA 75dB Four channels Short-Circuit Protection、Built-in compensation SOP-14 FET Input Amplifiers ROHSGcoreOperational Amplifier74HC14
SOP-14-40℃~+85℃ 1.9V、3.98V、4.4V、5.48V、5.9V 100mV、260mV、260mV 20uA 25ns@4.5V,50pF 2V~6V 6 74HC Noise suppression function Schmitt trigger SOP-14 Inverters ROHSJSMSEMIInverters
78L05
SOT-89-3-20℃~+120℃@(Tj) 1 1.7V 100mA 2mA 30V 40uV 49dB@(120Hz) 5V Fixed Over Temperature Protection、Short Circuit Protection Positive SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSUMWVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
BC847CW
SOT-323-65℃~+150℃ 1 NPN 100MHz 100mA 15nA 200mV 200mW 420 45V 6V NPN SOT-323 Bipolar (BJT) ROHSNexperiaBipolar (BJT)
README
README.mdRyan's CAD Files (Schematics, PCBs, Simulations)
kicad5
I started using KiCad 5.1.2 to draw schematics and lay out PCBs in May 2019.
kicad4
I used KiCad 4.0.6 for 3 weeks in September 2017. The two projects I completed are:
- Shift-Register Break-Out-Board - A modular daisy-chain-able serial-in-parallel-out 74hc595-based shift register circuit board.
- XPhone Input Board - A quad transducer amplifier and glockenspiel-key-hit-detection circuit board.
eagle6
Eagle was the first CAD program I ever used. I started using Eagle (on version 5.11.0) sometime in early 2011. I stopped on version 6.6.0 in mid 2017. Some of the more interesting projects I completed using Eagle are:
- Analog Synth - a bunch of analog (and digital) DIY synth modules. Designed, built, and tested by your truly. This includes VCOs, VCFs, VCAs, sequencers, front-panel designs, digital delay, manual oscillators, and power-distribution interconnect PCBs.
- Stroboscope - a device that can turn on and off LEDs very fast (at audio frequencies) in order to produce interesting/useful/helpful visual effects. A stroboscope can be used to enable a human to monitor the rotation of things in real time, e.g. fans, drills, wheels, motors, spinning objects, guitar strings, and any other object engaged in cyclic motion.
- VU Meter - a circuit that represents audio amplitude vertically on several bargraphs (each bargraph displays the amplitude of a given section of the audio spectrum). The device can be used to build a real-time visual audio spectrum analyzer.
- FreqCount84 - Atmel microcontroller-based design for precise measurement of frequency of square waves. I believe the hwardware & firmware achieved an accuracy of ± a few ppm with the help of a 1.5 pm TCXO.
- 9x9 LED Matrix - a 2D array of LEDs (9 LEDs wide, 9 LEDs tall). I remember wanting to build an array that had an odd number of pixels because it would allow me to make symetric visual displays. I programmed a game of pong for this 9x9 LED Matrix. That code exists in my repo for Arduino programs.
- Prototype Boards - three PCBs that enable DIY circuit construction. 0.1"-arrays of SMD pads, 0.1"-arrays of through-holes, SOT-to-DIP break-out-boards, SOIC-to-DIP break-out-boards, etc...
LTspice IV
I have used LTspice version IV to simulate some of my circuits.
Parts
380| Qty | Value | Footprint | References |
|---|---|---|---|
| 88 | 10n | Capacitors_SMD:C_0603_HandSoldering | C1, C1, C1, C1, C10, C10, C10, C10, C11, C11, C11, C11, C12, C12, C12, C12 +72 |
| 36 | BC847CW | TO_SOT_Packages_SMD:SOT-323_SC-70_Handsoldering | Q1, Q1, Q1, Q1, Q2, Q2, Q2, Q2, Q3, Q3, Q3, Q3, Q4, Q4, Q4, Q4 +20 |
| 32 | 100k | Resistors_SMD:R_0603_HandSoldering | R14, R14, R14, R14, R15, R15, R15, R15, R16, R16, R16, R16, R17, R17, R17, R17 +16 |
| 32 | 10M | Resistors_SMD:R_0603_HandSoldering | R10, R10, R10, R10, R12, R12, R12, R12, R22, R22, R22, R22, R23, R23, R23, R23 +16 |
| 32 | 1M | Resistors_SMD:R_0603_HandSoldering | R11, R11, R11, R11, R13, R13, R13, R13, R24, R24, R24, R24, R25, R25, R25, R25 +16 |
| 20 | 10k | Resistors_SMD:R_0603_HandSoldering | R3, R3, R3, R3, R20, R20, R20, R20, R21, R21, R21, R21, R34, R34, R34, R34 +4 |
| 16 | 10k | Potentiometers:Potentiometer_Trimmer_Bourns_3296W | RV1, RV1, RV1, RV1, RV2, RV2, RV2, RV2, RV3, RV3, RV3, RV3, RV4, RV4, RV4, RV4 |
| 16 | 4.7 | Resistors_SMD:R_0603_HandSoldering | R1, R1, R1, R1, R2, R2, R2, R2, R18, R18, R18, R18, R19, R19, R19, R19 |
| 16 | AUDIO | Pin_Headers:Pin_Header_Straight_1x01_Pitch2.54mm | J1, J1, J1, J1, J2, J2, J2, J2, J7, J7, J7, J7, J8, J8, J8, J8 |
| 16 | ENV | Pin_Headers:Pin_Header_Straight_1x01_Pitch2.54mm | J3, J3, J3, J3, J4, J4, J4, J4, J9, J9, J9, J9, J10, J10, J10, J10 |
| 16 | Input Coil | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | L1, L1, L1, L1, L2, L2, L2, L2, L3, L3, L3, L3, L4, L4, L4, L4 |
| 16 | PULSE | Pin_Headers:Pin_Header_Straight_1x01_Pitch2.54mm | J5, J5, J5, J5, J6, J6, J6, J6, J11, J11, J11, J11, J12, J12, J12, J12 |
| 8 | LM833 | Housings_DIP:DIP-8_W7.62mm | U1, U1, U1, U1, U5, U5, U5, U5 |
| 4 | 0 | Resistors_SMD:R_0603_HandSoldering | R7, R7, R7, R7 |
| 4 | 10µ | Capacitors_Tantalum_SMD:CP_Tantalum_Case-B_EIA-3528-21_Wave | C18, C18, C18, C18 |
| 4 | 74HC14 | Housings_DIP:DIP-14_W7.62mm | U4, U4, U4, U4 |
| 4 | 78L05 | TO_SOT_Packages_THT:TO-92_Inline_Wide | U2, U2, U2, U2 |
| 4 | Power In | Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm | J13, J13, J13, J13 |
| 4 | Power Out | Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm | J14, J14, J14, J14 |
| 4 | TL084 | SMD_Packages:SOIC-14_N | U3, U3, U3, U3 |
The 372 most common of 380 parts.
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Questions
How big is the Input Board Panel PCB?
It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Input Board Panel use?
380 parts, built around the TL084, 74HC14, 78L05 and BC847CW. 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 Input Board Panel KiCad files?
From the jensenr30/cad repository on GitHub, at the commit this page was made from: the board is kicad4/XPhone/Input_Board/Input_Board Panel.kicad_pcb and its schematic kicad8/expression-pedal-to-pwm/expression-pedal-to-pwm.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Input Board Panel design in my own project?
Its repository states no licence, so its author keeps all rights: ask jensenr30 before reusing the design.