Lea m8f board
About the Lea m8f board
Lea m8f board is an open source PCB design by Opendigitalradio, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 37.2 × 43.8 mm, with 33 components from 22 distinct parts.
Other key parts include the NC7SZ125, LT1962, LEA-M8F, USB6B1 and B200_GPSDO. By type, the board carries 11 resistors, 7 ICs, 6 connectors, 5 diodes and 4 capacitors.
From the project
A USRP B200 compatible GPSDO board with the u-blox LEA-M8F
This repository contains a KiCAD project for a Ettus USRP B200-compatible GPSDO that uses the u-blox LEA-M8F module.
It requires a modified UHD, because the reference clock output of the LEA-M8F is 30.72MHz.
This design is published under a Creative Commons CC-BY-SA licence, see LICENCE.txt for details.
Main components on the Lea m8f board
Lea m8f board bill of materials (BOM)
33 components, 22 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | NC7SZ125 | SC70 | U1, U4, U5 |
| 1 | LT1962 | MS8 | U2 |
| 1 | LEA-M8F | LEA | U3 |
| 1 | USB6B1 | SO-8 | U6 |
| 1 | B200_GPSDO | GPSDO_B200 | U100 |
| 1 | USB-MICRO-B | USB_Micro-B | CON1 |
| 1 | RF_IN | SMA_SIDE | J1 |
| 1 | PPS | SMA_SIDE | J3 |
| 1 | 30.72 | SMA_SIDE | J4 |
| 1 | CONN_01X08 | Pin_Header_Straight_1x08 | P1 |
| 1 | 5V IN | Pin_Header_Straight_1x01 | P2 |
| 2 | DIODESCH | Diode_0603_HandSoldering | D1, D4 |
| 1 | PPS | Diode_0603_HandSoldering | D2 |
| 1 | VDD | Diode_0603_HandSoldering | D3 |
| 1 | VUSB | Diode_0603_HandSoldering | D5 |
| 1 | 10uF | SMD-0805 | C1 |
| 1 | 10nF | SMD-0805 | C2 |
| 2 | 1uF | SMD-0805 | C3, C4 |
| 3 | DNF | R_0603_HandSoldering | R1, R5, R8 |
| 3 | 0 | R_0603_HandSoldering | R2, R3, R4 |
Show 2 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 27 | R_0603_HandSoldering | R6, R7 |
| 3 | 510 | R_0603_HandSoldering | R10, R11, R12 |
Lea m8f board design files
The KiCad project lives in the Opendigitalradio/lea-m8f-board repository on GitHub; these links point at the commit this page was built from.
- Layoutlea-m8f.kicad_pcb
Lea m8f board: common questions
How big is the Lea m8f board?
The Lea m8f board measures 37.2 × 43.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Lea m8f board?
33 components, from 22 distinct parts. The full bill of materials is listed on this page.
Where can I download the Lea m8f board design files?
From the Opendigitalradio/lea-m8f-board repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Lea m8f board design in my own project?
Yes, under the terms of its CC-BY-SA-4.0 license, which Opendigitalradio chose for the repository.