2 layers52.5 × 36.6 mm
ESP8266-WebRadio
karawin/Ka-Radio
A wifi webradio with only low cost boards ESP8266 and VS1053 by Jp Cocatrix
52 parts453
2 layers192.9 × 71.2 mm
AudioInjector.Octo.balanced
flatmax/AudioInjector.Octo.balanced4The Audio Injector Octo sound card for the Raspberry Pi - differential powered breakouts. Find more information at : http://audioinjector.net
- Size
- 192.9 × 71.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 232
- Nets
- 148
- Pads
- 644
- Tracks, vias
- 2,359, 364
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 17 Feb 2017
- Updated
- 9 Nov 2021
Overview
AudioInjector.Octo.balanced is an open-source printed circuit board by flatmax, from the flatmax/AudioInjector.Octo.balanced repository on GitHub, published under the GPL-2.0 licence. It is a 2-layer board of 192.9 × 71.2 mm with 232 parts on 148 nets, routed with 2,359 tracks and 364 vias.
It is built around the NE5532, ECHU1H102GX5 and ECHU1H471GX5, with the NLCV32T-470K-PF among its other parts. Its parts include 108 resistors, 86 capacitors, 14 ICs, 14 switches and 4 inductors.
Main components
4
NE5532
SOP-8-22V~22V 0℃~+70℃ 100dB 10nA 14mA 2 40V/us 42mA 4mV 800nA 8nV/√Hz@30Hz Built-in compensation SOP-8 Operational Amplifier ROHSSungineOperational Amplifier
ECHU1H102GX5
0805-55℃~+125℃ 1nF 30V、50V Polyphenylene Sulfide (PPS) ±2% 0805 Film Capacitors ROHSPanasonicFilm CapacitorsECHU1H471GX5
0805-55℃~+125℃ 30V、50V 470pF Metallized PPS ±2% 0805 Film Capacitors ROHSPanasonicFilm Capacitors
NLCV32T-470K-PF
12101.64Ω 180mA 47uH Wire-wound inductor ±10% 消费级 1210 Power Inductors ROHSTDKPower Inductors
README
README.mdAudioInjector.Octo.balanced
The Audio Injector Octo sound card for the Raspberry Pi - differential powered breakouts. Find more information at : http://audioinjector.net
These KiCad (http://kicad.org/) files give both the schematic and PCB gerber layouts for the RCA breakouts for the Audio Injector Octo sound card.
These balanced breakout boards are based on Sallen-Key filters.
Matt Flax flatmax.com
Parts
232| Qty | Value | Footprint | References |
|---|---|---|---|
| 52 | 47k | Resistors_SMD:R_0603 | R3, R11, R12, R17, R18, R23, R24, R29, R30, R35, R36, R100, R101, R102, R103, R104 +36 |
| 32 | 2.49k | Resistors_SMD:R_0603 | R1, R2, R10, R13, R14, R15, R16, R19, R20, R21, R22, R25, R26, R27, R28, R31 +16 |
| 32 | ECHU1H102GX5 | Capacitors_SMD:C_0805 | C1, C2, C10, C13, C14, C15, C16, C19, C20, C21, C22, C25, C26, C27, C28, C31 +16 |
| 28 | 1u | Capacitors_ThroughHole:C_Rect_L7_W4.5_P5 | C3, C11, C12, C17, C18, C23, C24, C29, C30, C35, C36, C41, C42, C47, C48, C49 +12 |
| 14 | 10u | Capacitors_SMD:c_elec_4x5.3 | C73, C74, C75, C76, C77, C78, C79, C80, C81, C82, C83, C84, C85, C86 |
| 14 | NE5532 | SMD_Packages:SOIC-8-N | U1, U2, U3, U4, U5, U6, U7, U8, U9, U10, U11, U12, U13, U14 |
| 12 | 634 | Resistors_SMD:R_0603 | R55, R56, R65, R66, R75, R76, R85, R86, R95, R96, R105, R106 |
| 12 | 91 | Resistors_SMD:R_0603 | R57, R58, R67, R68, R77, R78, R87, R88, R97, R98, R107, R108 |
| 12 | ECHU1H471GX5 | Capacitors_SMD:C_0805 | C51, C52, C55, C56, C59, C60, C63, C64, C67, C68, C71, C72 |
| 8 | ck-6.35 | 635mm:334g_6p_noThru | K1, K2, K3, K4, K5, K6, K7, K8 |
| 6 | ck-6.35 | 635mm:334g_6p | K9, K10, K11, K12, K13, K14 |
| 4 | NLCV32T-470K | Inductors_NEOSID:Neosid_Inductor_SM-NE30_SMD1210 | L1, L2, L3, L4 |
| 1 | ADC_in | Pin_Headers:Pin_Header_Straight_2x12 | P6 |
| 1 | DAC_out | Pin_Headers:Pin_Header_Straight_2x12 | P5 |
The 228 most common of 232 parts.
Questions
How big is the AudioInjector.Octo.balanced PCB?
It measures 192.9 × 71.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the AudioInjector.Octo.balanced use?
232 parts, built around the NE5532, ECHU1H102GX5, ECHU1H471GX5 and NLCV32T-470K-PF. 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 AudioInjector.Octo.balanced KiCad files?
From the flatmax/AudioInjector.Octo.balanced repository on GitHub, at the commit this page was made from: the board is AudioInjector.Octo.balanced.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the AudioInjector.Octo.balanced design in my own project?
Its repository publishes it under the GPL-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
Similar boards
- 2 layers100 × 68 mm
- 2 layers165 × 103.8 mm
Output pcb
QuinnFreedman/modular
A collection of free & open source DIY synthesizer module designs for Eurorack
128 parts116 - 2 layers173 × 85 mm
Audio board
EleonoreMizo/pedalevite
Pédale Vite — DIY multi-FX pedalboard for guitar/bass/etc.
268 parts101WTFPL - 2 layers84 × 85 mm
- 2 layers149.9 × 55.9 mm
- 4 layers99 × 99 mm
MegaBlaster2
AidanHockey5/MegaBlaster2
The latest iteration of my hardware Sega Genesis/Megadrive Video Game Music Player
120 parts59AGPL-3.0 - 2 layers80 × 60 mm
