2 layers100 × 68 mm
2 layers100 × 68 mm
SI4684 SMD
PE5PVB/SI4684-DAB-Receiver135SI4684 ESP32 DAB Receiver
- Size
- 100 × 68 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 91
- Nets
- 80
- Pads
- 306
- Tracks, vias
- 492, 721
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 22 Feb 2024
- Updated
- 2 Jul 2026
Overview
SI4684 SMD is an open-source printed circuit board by PE5PVB, from the PE5PVB/SI4684-DAB-Receiver repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 100 × 68 mm with 91 parts on 80 nets, routed with 492 tracks and 721 vias.
It is built around the LM2596S-5.0, NE5532 and AMS1117-3.3, with the MIC5504-1.8YM5-TR, TPA6130A2RTJTG4 and BAV99 among its other parts. Its parts include 43 capacitors, 26 resistors, 6 ICs, 6 connectors and 6 inductors.
Main components
7
LM2596S-5.0
TO-263-5-40℃~+125℃@(TJ) 1 150kHz 3A 4.5V~40V 5V 5mA Buck Buck Built-in Fixed No TO-263-5 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
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
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
MIC5504-1.8YM5-TR
SOT-23-5-40℃~+125℃@(Tj) 1 1.8V 175uVrms 300mA 380mV@(300mA) 5.5V 55uA 60dB@(1kHz) Fixed Over Current Protection、Over Temperature Protection Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMicrochip TechnologyVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsTPA6130A2RTJTG4
QFN-20QFN-20 New Arrivals ROHSTexas InstrumentsUncategorised
BAV99
SOT-231 Pair Series Connection 1.25V@150mA 100V 215mA 250mW 4A 4ns 500nA@80V SOT-23 Switching Diodes ROHSNexperiaSwitching Diodes
SS34
SMA(DO-214AC)-55℃~+125℃ 3A 40V 500uA@40V 550mV@3A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
README
README.md
Note:
The version in the repository is an ongoing development. It could and will contain bugs. To make sure you use the latest fully tested firmware, check the releases!
SI4684 DAB receiver
Advanced DAB Tuner software for Skyworks SI4684 tuner with ESP32 board and a color LCD
More information: https://www.pe5pvb.nl/
Building instructions
On Youtube I published a video how to build your own radio.
In English: https://www.youtube.com/watch?v=C_xd0h_HTuU
In Dutch: https://www.youtube.com/watch?v=wV3G2J327qg
Libraries
These are the libraries used for this project:
- https://github.com/Bodmer/TFT_eSPI
- https://github.com/Bodmer/JPEGDecoder
- https://github.com/bitbank2/PNGdec
Use these settings in the TFT_eSPI library:
#define ILI9341_DRIVER
#define TFT_CS 5
#define TFT_DC 4
#define TFT_RST 17
#define SPI_FREQUENCY 50000000
#define SMOOTH_FONTButtons
A brief instruction for the buttons:
- Top encoder: Choose frequency or memory channel
- Bottom encoder: Choose service or set headphones volume
- Top button: Short press: Service information, Long press: Stand-by mode.
- Middle button: Short press: Set mode, Long press: Open menu.
- Lower button: Toggle Slideshow view.
Contributing
I'm open for a new ideas in our project. Feel free to share your thoughts in Discussions.
You can also contribute your own code using Pull Requests. We will review it and merge into main branch.
You are using my software and you found a difficulty? Please create new issue and describe your problem.
I also would like to invite you to join our Discord community where we share our ideas and help each other with some issues.
Special thanks to all contributors. You are awesome! ❤️
License
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
If you like this software
Parts
91| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 10uF | Capacitor_SMD:CP_Elec_4x5.4 | C8, C9, C10, C11, C22, C24, C27, C28, C31, C37 |
| 8 | 1uF | Capacitor_SMD:C_0603_1608Metric | C1, C4, C14, C15, C17, C26, C35, C41 |
| 6 | 100 | Resistor_SMD:R_0603_1608Metric | R4, R5, R6, R7, R10, R11 |
| 5 | 4k7 | Resistor_SMD:R_0603_1608Metric | R3, R8, R9, R19, R21 |
| 4 | 100k | Resistor_SMD:R_0603_1608Metric | R15, R16, R25, R26 |
| 4 | 100n | Capacitor_SMD:C_0603_1608Metric | C6, C18, C19, C21 |
| 4 | 220 | Resistor_SMD:R_0603_1608Metric | R12, R13, R23, R24 |
| 4 | 2n2 | Capacitor_SMD:C_0603_1608Metric | C7, C25, C30, C40 |
| 4 | 8p2 | Capacitor_SMD:C_0603_1608Metric | C12, C23, C29, C38 |
| 3 | 10p | Capacitor_SMD:C_0603_1608Metric | C32, C33, C36 |
| 2 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 2 | 220uF | Capacitor_SMD:CP_Elec_6.3x7.7 | C2, C13 |
| 2 | 270p | Capacitor_SMD:C_0603_1608Metric | C34, C39 |
| 2 | 39k | Resistor_SMD:R_0603_1608Metric | R14, R17 |
| 2 | 3k9 | Resistor_SMD:R_0603_1608Metric | R20, R22 |
| 2 | 47uF | Capacitor_SMD:CP_Elec_6.3x5.4 | C42, C43 |
| 1 | 10 | Resistor_SMD:R_0603_1608Metric | R18 |
| 1 | 100uF | Capacitor_SMD:CP_Elec_6.3x7.7 | C16 |
| 1 | 120nH | Inductor_SMD:L_0603_1608Metric | L3 |
| 1 | 18nH | Inductor_SMD:L_0603_1608Metric | L1 |
| 1 | 19.2MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | X1 |
| 1 | 1uF | Capacitor_SMD:CP_Elec_4x5.4 | C20 |
| 1 | 22nH | Inductor_SMD:L_0603_1608Metric | L4 |
| 1 | 22uH | Inductor_SMD:L_TracoPower_TCK-047_5.2x5.8mm | L6 |
| 1 | 2p7 | Capacitor_SMD:C_0603_1608Metric | C5 |
| 1 | 33p | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 33uH | Inductor_SMD:L_TracoPower_TCK-047_5.2x5.8mm | L5 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U4 |
| 1 | AUDIO | Library:FC68405_cinch | J5 |
| 1 | Ant | Connector_Coaxial:SMA_Amphenol_132134-16_Vertical | J2 |
| 1 | BAV99 | Package_TO_SOT_SMD:SOT-23 | D1 |
| 1 | BEAD | Inductor_SMD:L_0603_1608Metric | L2 |
| 1 | DC IN | Connector_BarrelJack:BarrelJack_Horizontal | J1 |
| 1 | FRONT-PCB | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J4 |
| 1 | Headphones | Connector_JST:JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | J3 |
| 1 | I2S | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J6 |
| 1 | LM2596S-5 | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U2 |
| 1 | MIC5504-1.8YM5 | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | NE5532 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U6 |
| 1 | SI4684 SMD-A10-GM | Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.3x5.3mm | U3 |
| 1 | SS34 | Diode_SMD:D_SMB | D2 |
| 1 | TPA6130A2RTJTG4 | Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.7x2.7mm | U5 |
The 90 most common of 91 parts.
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Questions
How big is the SI4684 SMD PCB?
It measures 100 × 68 mm and has 2 copper layers, 1.6 mm thick.
What parts does the SI4684 SMD use?
91 parts, built around the LM2596S-5.0, NE5532, AMS1117-3.3 and MIC5504-1.8YM5-TR. 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 SI4684 SMD KiCad files?
From the PE5PVB/SI4684-DAB-Receiver repository on GitHub, at the commit this page was made from: the board is Kicad/Mainboard SMD/SI4684 SMD.kicad_pcb and its schematic Kicad/Controller SMD/SI4684 controller SMD.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SI4684 SMD design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).