2 layers158 × 18.5 mm
4 layers65 × 56.4 mm
Audio Board
woytekm/IRIS22Network Radio revisited
- Size
- 65 × 56.4 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 78
- Nets
- 70
- Pads
- 274
- Tracks, vias
- 999, 223
- Pours
- 12
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 1 Dec 2018
- Updated
- 30 Sep 2020
Overview
Audio Board is an open-source printed circuit board by woytekm, from the woytekm/IRIS2 repository on GitHub. It is a 4-layer board of 65 × 56.4 mm with 78 parts on 70 nets, routed with 999 tracks and 223 vias.
It is built around the MT3608, TAS5721DCA and 10MQ040NTRPBF. Its parts include 42 capacitors, 17 resistors, 8 connectors, 7 inductors and 3 ICs. It belongs with the audio and music and radio and wireless boards of this library.
Main components
3
MT3608
SOT-23-6-40℃~+85℃ 1 1.2MHz 100uA、1.6mA 2A 2V~24V Adjustable Boost Boost Built-in No SOT-23-6 DC-DC Converters ROHS西安航天民芯DC-DC Converters
TAS5721DCA
HTSSOP-480.07% 0℃~+85℃ 106dB 10Wx2@8Ω 2-Channel 50mA 8V~26.4V HTSSOP-48 Audio Amplifiers ROHSTexas InstrumentsAudio Amplifiers
10MQ040NTRPBF
SMA(DO-214AC)-55℃~+150℃ 1 Independent 120A 1A 40V 500uA@40V 540mV@1A SMA(DO-214AC) Schottky Diodes ROHSVishay IntertechnologySchottky Diodes
README
README.mdIRIS2 network radio project. This repository will contain all the necessary information required to build the unit.
Project images and video clips: https://drive.google.com/open?id=105BILNTAdYNRVomJvfbO0CPW3QA1uIXu
Currently we have here:
- Code for core Iris application along with all necessary system scripts
- KiCad projects/schematics for all PCB's
- STL's of all parts of the IRIS2 case
- Some initial documentation
What we need to add:
- More documentation
- Detailed assembly instructions for all the PCB's and the unit itself
- Detailed BOM for all of the PCB's, and additional stuff required to assemble the unit itself
- Detailed instructions on how to make your own copy of IRIS2 firmware based on Raspbian (and/or firmware images)
Parts
78| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 0.33uF/50 | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C2, C4, C6, C8, C10, C11 |
| 4 | 0.033uF/50 | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C20, C30, C31, C32 |
| 4 | 15K | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R15, R16, R17, R18 |
| 4 | 15uH/3.5A | Inductor_SMD:L_7.3x7.3_H3.5 | L1, L2, L3, L4 |
| 4 | 18R | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R3, R6, R7, R8 |
| 4 | 220uF/50 | Capacitor_SMD:CP_Elec_6.3x7.7 | C33, C34, C35, C36 |
| 4 | 330pF/50V | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C5, C7, C9, C24 |
| 3 | 0R | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R1, R5, R13 |
| 3 | 100nF/16 | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C37, C41, C42 |
| 3 | Conn_01x02 | Connector_Molex:Molex_Micro-Latch_53253-0270_1x02_P2.00mm_Vertical | J2, J3, J8 |
| 2 | 0.047uF/16 | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C12, C14 |
| 2 | 0.1uF/25 | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C1, C27 |
| 2 | 10uF/16 | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C16, C23 |
| 2 | 1uF/10 | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C18, C19 |
| 2 | 220uF/25 | Capacitor_SMD:CP_Elec_6.3x7.7 | C3, C28 |
| 2 | 22uF/25 | Capacitor_SMD:C_1210_3225Metric_Pad1.42x2.65mm_HandSolder | C39, C40 |
| 2 | 4700pF/25V | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C13, C17 |
| 2 | 470R | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R11, R12 |
| 2 | Conn_01x15 | Connector_PinSocket_2.54mm:PinSocket_1x15_P2.54mm_Vertical | J1, J7 |
| 2 | Ferrite Bead | Inductor_SMD:L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L6, L7 |
| 1 | +5V analog - external | Connector_Molex:Molex_Micro-Latch_53253-0270_1x02_P2.00mm_Vertical | J5 |
| 1 | 0.1uF/16V | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C29 |
| 1 | 100n/16 | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C22 |
| 1 | 10MQ040NTRPBF | Diode_SMD:D_3220_8050Metric_Pad2.65x5.15mm_HandSolder | D1 |
| 1 | 10uF/16 | Capacitor_Tantalum_SMD:CP_EIA-3216-18_Kemet-A_Pad1.58x1.35mm_HandSolder | C38 |
| 1 | 18.2K | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R14 |
| 1 | 1K | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R4 |
| 1 | 1uF/16 | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C15 |
| 1 | 1uF/25V | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C25 |
| 1 | 2.2K | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R10 |
| 1 | 2200pF/50V | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C26 |
| 1 | 3K | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R9 |
| 1 | 4.7uF/6.3 | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C21 |
| 1 | 4.7uH 1A | Inductor_SMD:L_6.3x6.3_H3 | L5 |
| 1 | AP1117-33 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | Conn_02x20_Odd_Even | Connector_PinSocket_2.54mm:PinSocket_2x20_P2.54mm_Vertical | J6 |
| 1 | Ext/Int +5V Analog | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J4 |
| 1 | MT3608 | Package_TO_SOT_SMD:SOT-23-6_Handsoldering | U5 |
| 1 | TAS5721 | HTSSOP48:HTSSOP48 | U1 |
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Questions
How big is the Audio Board PCB?
It measures 65 × 56.4 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Audio Board use?
78 parts, built around the MT3608, TAS5721DCA and 10MQ040NTRPBF. 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 Board KiCad files?
From the woytekm/IRIS2 repository on GitHub, at the commit this page was made from: the board is Hardware/Audio Board v2 - 2+1/Audio Board.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Audio Board design in my own project?
Its repository states no licence, so its author keeps all rights: ask woytekm before reusing the design.