2 layers51 × 35 mm
2 layers35 × 14 mm
Dongle
iTeleTram/dongle_hwUSB to DCC dongle hardware schematics for KiCad
- Size
- 35 × 14 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 39
- Nets
- 33
- Pads
- 129
- Tracks, vias
- 339, 44
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 2 Jul 2017
- Updated
- 2 Jul 2017
Overview
Dongle is an open-source printed circuit board by iTeleTram, from the iTeleTram/dongle_hw repository on GitHub, published under the Apache-2.0 licence. It is a 2-layer board of 35 × 14 mm with 39 parts on 33 nets, routed with 339 tracks and 44 vias.
It is built around the SN75176BD, MCP601-I/P and USBLC6-2P6, with the BAT54SL among its other parts. Its parts include 15 capacitors, 12 resistors, 5 diodes, 3 ICs and 3 connectors. It belongs with the Silicon Labs (EFR32, EFM) boards of this library.
Main components
4
SN75176BD
SOIC-80℃~+70℃ 1 1 4.75V~5.25V Transceiver SOIC-8 RS-485 / RS-422 ICs ROHSTexas InstrumentsRS-485 / RS-422 ICs
MCP601-I/P
DIP-8-40℃~+85℃ 1 1pA 1pA 2.3V/us 2.5uV/℃ 2.7V~6V 2.8MHz 22mA 230uA 29nV/√Hz@1kHz 700uV 86dB Built-in compensation、ESD protection Rail-to-rail output DIP-8 Operational Amplifier ROHSMicrochip TechnologyOperational Amplifier
USBLC6-2P6
SOT-666-6-40℃~+125℃ 150nA 17V 2 3.5pF 5.25V 5A@8/20us 6V ESD IEC 61000-4-2 Unidirectional SOT-666-6 ESD and Surge Protection (TVS/ESD) ROHSSTMicroelectronicsESD And Surge Protection (TVS/ESD)
BAT54SL
SOT-23-55℃~+150℃ 1 Pair Series Connection 200mA 2uA@25V 30V 800mV@100mA SOT-23 Schottky Diodes ROHSonsemiSchottky Diodes
Parts
39| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 100n | Capacitors_SMD:C_0603 | C2, C7, C8, C10, C11, C12 |
| 4 | 1u | Capacitors_SMD:C_0603 | C4, C6, C9, C15 |
| 3 | 22 | Resistors_SMD:R_0603 | R1, R2, R5 |
| 2 | 12 | Capacitors_SMD:C_0603 | C1, C3 |
| 2 | 1K | Resistors_SMD:R_0603 | R6, R9 |
| 2 | 220 | Resistors_SMD:R_0603 | R10, R11 |
| 2 | 4u7 | Capacitors_SMD:C_0603 | C5, C13 |
| 2 | NA | Resistors_SMD:R_0603 | R7, R8 |
| 2 | USBLC6-2 | TO_SOT_Packages_SMD:SOT-23-6 | D4, D5 |
| 1 | 1 | Resistors_SMD:R_0603 | R12 |
| 1 | 10K | Resistors_SMD:R_0603 | R3 |
| 1 | 1n | Capacitors_SMD:C_0603 | C14 |
| 1 | 24 MHz | Crystals:Crystal_SMD_3225-4pin_3.2x2.5mm | Y1 |
| 1 | 49K9 | Resistors_SMD:R_0603 | R4 |
| 1 | BAT54SL | TO_SOT_Packages_SMD:SOT-23 | D1 |
| 1 | CONN_01X02 | Socket_Strips:Socket_Strip_Straight_1x02 | P3 |
| 1 | CONN_01X04 | Socket_Strips:Socket_Strip_Straight_1x04 | P2 |
| 1 | EFM32HG308 | teletram_ic:QFN24_5mm | U1 |
| 1 | MCP601 | TO_SOT_Packages_SMD:SOT-23-5 | U2 |
| 1 | RED | LEDs:LED_0603 | D2 |
| 1 | SN75176B | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U3 |
| 1 | USB_A | teletram_connectors:usb_plug_th | P1 |
| 1 | YELLOW | LEDs:LED_0603 | D3 |
Similar boards
- 2 layers
Wiggle spine
gitter-badger/wiggleport
Modular I/O for multi-channel sound, light, and motion
173 partsMIT - 2 layers300 × 105 mm
- 4 layers76.2 × 76.2 mm
Dodekaedri
e-xla/dodekaedri
dodekaedrin muotoinen radio ":D" / dodecahedron shaped radio ":D"
227 parts2 - 2 layers30 × 237.9 mm
Vca
thismatters/EurorackVca
Voltage Control Amplifier for Eurorack -- Based on Yusynth Simple VCA
67 parts1 - 4 layers102 × 150 mm
Generator dds
kpatrykEIT/DDS_generator_ATmega32u4
Programmable periodic waveform generator based on the ATmega32U4 microcontroller and a DAC
47 parts - 2 layers202.2 × 131 mm
New system
MadsRudolph/62768-energy-system
Team project for 62768 Electrical Energy Systems (DTU, June 2026, 3-week course). We design and build a complete electrical energy system per the course requirement spec (Kravspecifikation), from idea to a working…
131 parts - 2 layers25 × 5.7 mm
Questions
How big is the Dongle PCB?
It measures 35 × 14 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Dongle use?
39 parts, built around the SN75176BD, MCP601-I/P, USBLC6-2P6 and BAT54SL. 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 Dongle KiCad files?
From the iTeleTram/dongle_hw repository on GitHub, at the commit this page was made from: the board is dongle.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Dongle design in my own project?
Its repository publishes it under the Apache-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).