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SPIRIT1 Board v1

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Status: Completed


Spirit1 Board is ST's SPIRIT1 based low consumption radio board suitable for e.g. wireless sensor applications.


Spirit board v1 gerbers
Spirit1 board v1 3D view in Kicad
Spirit1 board v1 schema

BOM generic

Ref Value Digikey ref Mouser ref
C0 100nF 0402 -
C9 12pF 0402 -
C10 10pF 0402 -
C12 100nF CAP CER 0.1UF 16V X7R 0402 -
C13 330pF CAP CER 330PF 50V NP0 0402 -
CX1 220pf CAP CER 220PF 50V NP0 0402 -
C19 10nF CAP CER 10000PF 16V X7R 0402 -
C20 1uF CAP CER 1UF 6.3V X5R 0603 -
C21 100pF CAP CER 100PF 50V NP0 0402 -
L7 10uH FIXED IND 10UH 100MA 600 MOHM -
R1 0Ω 0603 -
R2 0Ω 0603 -
X1 50 MHz ABM3-50.000MHZ-D2Y-F-T -
RB-CN10 2mm header N/A N/A
CN2 antenna N/A N/A
CN3 antenna U.FL-R-SMT(01) -

BOM 433 Mhz

Ref Value Digikey ref Mouser ref
C11 1 uF CAP CER 1UF 6.3V X5R 0603 -
L0 150nH FIXED IND 150NH 140MA 2.99 OHM -
L8 62nH FIXED IND 62NH 145MA 1.82 OHM -

BOM 868 Mhz

Ref Value Digikey ref Mouser ref
C11 470nF CAP CER 0.47UF 6.3V X5R 0603 -
L0 100nH FIXED IND 100NH 150MA 1.25 OHM -
L8 27nH FIXED IND 27NH 280MA 520 MOHM -

Assembled boards

Board Reworks Notes
#1 0402 resoldered SPI works (mostly?), radio not tested with antenna
#2 0402 resoldered Doesn't assert, doesn't do anything else either?
#3 0402 resoldered Balun pads connected together
#4 0402 resoldered Spirit1 misaligned, shortcut


  • Clearance for antenna trace much more than the recommended 100um