2 layers30.5 × 17.8 mm
2 layers35 × 24.9 mm
At86rf212b 2l
ilf-S/at86rf212b- Size
- 35 × 24.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 23
- Nets
- 26
- Pads
- 99
- Tracks, vias
- 775, 292
- Pours
- 8
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171125)
- Created
- 27 Oct 2017
- Updated
- 1 Dec 2017
Overview
At86rf212b 2l is an open-source printed circuit board by ilf-S, from the ilf-S/at86rf212b repository on GitHub. It is a 2-layer board of 35 × 24.9 mm with 23 parts on 26 nets, routed with 775 tracks and 292 vias.
It is built around the AT86RF212B-ZU. Its parts include 8 capacitors, 7 resistors, 3 connectors, 2 inductors and 1 IC.
Main components
1README
README.mdKicad project files for a 2 layer PCB with AT86RF212B transceiver. The board uses separated digital and analog ground planes on a 2 layer PCB design. Board has not been tested yet, so use with caution.
- 2 Layer design
- 4 Ground planes: Digital, Analog, Xtal & RF
- Digital handles all signals like SPI connection, IRQ, etc.
- Analog is mostly for things connected to the RF/Xtal, etc. but is confined bellow the IC QFN package. Consult the documentation, all analog ground pins are connected to the pads bellow the QFN.
- The RF is a separate plane connected to the IC by the two analog GND pins surrounding the RF_P/RF_N pins. Again consult the documentation
- The Xtal GND plane is connected to the IC with a single Analog GND pin and is hard grounded with via stitches. This hopefully will help with interference with the nearby IRQ pin. Capacitance could be an issue, though, might need some tweaking.
The rest is straight forward. Just follow the AT86RF212B Atmel SpecSheet.
Still not tested!
Parts
23| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 0 | Resistors_SMD:R_0402 | R2, R3, R4, R5 |
| 4 | 1uF | Capacitors_SMD:C_0402 | C1, C2, C6, C7 |
| 2 | 10pF | Capacitors_SMD:C_0402 | C5, C8 |
| 2 | Conn_01x07 | Pin_Headers:Pin_Header_Straight_1x07_Pitch2.54mm | J2, J3 |
| 1 | 100pF | Capacitors_SMD:C_0402 | C10 |
| 1 | 10k | Resistors_SMD:R_0402 | R8 |
| 1 | 16.0Mhz | Crystals:Crystal_SMD_3225-4pin_3.2x2.5mm | Y1 |
| 1 | 2.2pF | Capacitors_SMD:C_0402 | C3 |
| 1 | 22 | Resistors_SMD:R_0402 | R6 |
| 1 | 470 | Resistors_SMD:R_0402 | R1 |
| 1 | ANT | adafruit:SMA_EDGELAUNCH | J1 |
| 1 | AT86RF212B | Housings_DFN_QFN:QFN-32-1EP_5x5mm_Pitch0.5mm | U1 |
| 1 | BALUN | makerlab:BALUN | B1 |
| 1 | FB1 | Resistors_SMD:R_0805 | L3 |
| 1 | FB2 | Resistors_SMD:R_0805 | L2 |
Questions
How big is the At86rf212b 2l PCB?
It measures 35 × 24.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the At86rf212b 2l use?
23 parts, built around the AT86RF212B-ZU. 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 At86rf212b 2l KiCad files?
From the ilf-S/at86rf212b repository on GitHub, at the commit this page was made from: the board is at86rf212b_2l/at86rf212b_2l.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the At86rf212b 2l design in my own project?
Its repository states no licence, so its author keeps all rights: ask ilf-S before reusing the design.
Similar boards
- 2 layers65 × 56 mm
- 2 layers14 × 100 mm
Yunomi
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
23 parts3kApache-2.0 - 2 layers50.8 × 52.2 mm
- 2 layers138.8 × 89.8 mm
- 2 layers32.9 × 53.3 mm
- 2 layers35.5 × 50 mm
- 2 layers19 × 19 mm
