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Headless tef lite

FMDX-org·headless-tef-lite·Kicad/Headless TEF lite.kicad_pcb

Headless tef lite PCB layout, top view — open source STM32 board by FMDX-org

About the Headless tef lite PCB

Headless tef lite is an open source STM32 PCB design by FMDX-org, published on GitHub under the CERN-OHL-W-2.0 license. It is a 2-layer board measuring 55 × 25 mm, with 84 components from 40 distinct parts.

Its main chip is the C92504, from the STM32 family. Other key parts include the TEF6687HN/V205 (F8705), C2827693 and C2862740. By type, the board carries 35 capacitors, 25 resistors, 9 inductors, 5 diodes, 4 ICs and 3 connectors.

It belongs with the rf & radio designs in this gallery.

From the project

Small low cost Headless TEF variant.

USB radio tuner based on the STM32F072 MCU and TEF668X/V205 RF receiver with digital audio output over USB. This is the lite variant of our Headless USB tuner. It is more compact, with a simplified RF input path and only one antenna input for AM/FM.

This design is optimized as a cost-efficient solution tailored for automated PCBA (Printed Circuit Board Assembly) processes.

Headless tef lite, from the project README
From the project README

Main components on the Headless tef lite

TEF6687HN/V205 (F8705)C2827693C92504C2862740

Headless tef lite bill of materials (BOM)

84 components, 40 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TEF6687HN/V205 (F8705)
U1
1
C2827693
USBLC6-2P6
U2
1
C92504
STM32F072CBU6
U3
1
C2862740
TPS7A2033PDBVR
U4
1
C312425
55.46667 MHz
Y1
1
C341525
8 MHz
Y2
1
C5150972
12402012E212A
J1
1
SMA
J2
1
36903205S
J3
1
C404378
ACM2012-202-2P-T002
FL1
1
C20416655
BAV99S
D1
1
C2594895
CPDV3V3A-HF
D2
1
C434446
GREEN
D3
1
C434445
RED
D4
1
C434447
BLUE
D5
4
C14182
FERRIT
FB1, FB2, FB3, FB4
1
C316408
820nH
L1
1
C84474
3.3uH
L2
2
C49501
270nH
L3, L4
1
C18834
220nH
L5
Show 20 more
QtyPartRefs
1
C1538
4n7
C1
1
C32949
10p
C2
1
C1537
470p
C3
1
C16772
220n
C4
2
C1523
1n
C5, C21
1
C281752
1n5
C6
1
C1553
1p8
C7
2
C1550
1p
C8, C12
3
C15525
10u
C9, C20, C29
13
C1525
100n
C10, C11, C13, C14, C15, C19, C23, C24 +5
1
C15195
10n
C16
3
C1547
12p
C17, C31, C35
4
C23733
4u7
C18, C22, C28, C32
1
C1569
4p7
C34
7
C25905
5K1
R1, R2, R7, R12, R13, R14, R18
3
C26083
1M
R3, R4, R5
9
C25076
100R
R6, R8, R9, R10, R11, R16, R17, R19 +1
1
C163460
560R
R15
3
C4109
2k
R21, R22, R23
2
C11702
1k
R24, R25

Headless tef lite design files

The KiCad project lives in the FMDX-org/headless-tef-lite repository on GitHub; these links point at the commit this page was built from.

Headless tef lite: common questions

What microcontroller does the Headless tef lite use?

The Headless tef lite is built around the C92504, from the STM32 family.

How big is the Headless tef lite PCB?

The Headless tef lite measures 55 × 25 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Headless tef lite?

84 components, from 40 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Headless tef lite design files?

From the FMDX-org/headless-tef-lite repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Headless tef lite design in my own project?

Yes, under the terms of its CERN-OHL-W-2.0 license, which FMDX-org chose for the repository.

Can I test firmware for the Headless tef lite without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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