2 layers24.2 × 18 mm
Audio pot big
cycfi/audio_pot_big
KiCad PCB project — part of the Cycfi Connect series (umbrella repo: cycfi/connect)
16 parts
2 layers30 × 8 mm
Audio buffer
cycfi/audio_bufferKiCad PCB project — part of the Cycfi Connect series (umbrella repo: cycfi/connect)
- Size
- 30 × 8 mm
- Copper layers
- 2
- Thickness
- 1.09 mm
- Parts
- 15
- Nets
- 8
- Pads
- 32
- Tracks, vias
- 59, 7
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 23 Jul 2026
- Updated
- 23 Jul 2026
Overview
Audio buffer is an open-source printed circuit board by cycfi, from the cycfi/audio_buffer repository on GitHub. It is a 2-layer board of 30 × 8 mm with 15 parts on 8 nets, routed with 59 tracks and 7 vias.
It is built around the OPA197IDBV and LBSS84LT1G. Its parts include 4 capacitors, 4 resistors, 2 connectors, 1 IC and 1 transistor. It belongs with the audio and music boards of this library.
Main components
2
OPA197IDBV
SOT-23-5-18V~-2.25V、2.25V~18V -40℃~+125℃ 1 100uV 10MHz 140dB 1mA 2.5uV/℃ 20V/us 20pA 4.5V~36V 5.5nV/√Hz@1kHz 5pA 65mA EMI filtering/RF suppression Rail-to-Rail Input, Rail-to-Rail Output SOT-23-5 Operational Amplifier ROHSTexas InstrumentsPrecision Op Amps
LBSS84LT1G
SOT-23-55℃~+150℃ 1 P-Channel 10pF 10Ω@5V 130mA 225mW 2V 30pF 50V 5pF 6nC P-Channel SOT-23 MOSFETs ROHSLeshan Radio (LRC)MOSFETs
Parts
15| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 1MΩ | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | conn_1x3 | cycfi_library:pin_header_1x3p_2.54mm_smd_horizontal | J1, J2 |
| 1 | 100k | Resistor_SMD:R_0402_1005Metric | R3 |
| 1 | 100nF | Capacitor_SMD:C_0402_1005Metric | C4 |
| 1 | 100nF | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | 4.7k | Resistor_SMD:R_0402_1005Metric | R4 |
| 1 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C3 |
| 1 | LBSS84LT1G | Package_TO_SOT_SMD:TSOT-23 | Q1 |
| 1 | LOGO | cycfi_library:infinity_logo_5mm | G*** |
| 1 | LOGO | cycfi_library:cycfi-logo-9mm | G*** |
| 1 | OPA197IDBV | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP1 |
Questions
How big is the Audio buffer PCB?
It measures 30 × 8 mm and has 2 copper layers, 1.09 mm thick.
What parts does the Audio buffer use?
15 parts, built around the OPA197IDBV and LBSS84LT1G. 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 Audio buffer KiCad files?
From the cycfi/audio_buffer repository on GitHub, at the commit this page was made from: the board is audio_buffer.kicad_pcb and its schematic audio_buffer.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Audio buffer design in my own project?
Its repository states no licence, so its author keeps all rights: ask cycfi before reusing the design.
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