nRF54L15 BLE Schematic Design

flux

0:00

Work completed
  • Placed and configured the 3-pad pi-match footprint (MATCH1) between U1:ANT and the Johanson chip antenna pad
  • Tied the pi-match ground pad to GND
  • Connected U1:ANT → MATCH1 input pad, MATCH1 output pad → ANT1 feed pad, and MATCH1 ground pad → GND net
  • Renamed RF nets: pi-match input as MATCH_IN and pi-match output as MATCH_OUT
  • Configured PCB stackup to “Standard 4 Layer”
  • Researched and set antenna keepout margin to 5 mm; updated keepout zones accordingly
  • Calculated and set board outline dimensions to 13 mm × 13 mm
  • Updated project description to note pi-match network addition
  • Marked RF layout as prepared
Success criteria
  • ✅ Pi-match footprint placed and isolated with dedicated ground connection
  • ✅ RF connections between nRF54L15 and antenna clearly defined; MATCH_IN and MATCH_OUT nets applied
  • ✅ PCB layout settings (stackup, keepout zones, board outline) correctly configured for RF performance
Next step
According to our workflow, the schematic and RF setup are complete. The next stage is PCB layout:
  • Review and verify all footprints (including 3-pad pi-match, antenna, crystals, connectors)
  • Place components on the board outline and set up placement constraints
  • Proceed with Auto-Layout placement before routing
92 days
Sign up to send

To get started, talk to Flux or create a New Document.

Documents

    Documents are markdown text files which describe project goals, capture details, or even simulation outputs.

    Assets

    Assets are files uploaded to this project which can be used in various ways.

    Smart Glasses PCB thumbnail
    Smart Glasses BLE Audio & RF PCB with Nordic nRF54L15 MCU and 3‑Pad RF Pi‑Match Network for Johanson 2450AT18B100E Chip Antenna (4‑Layer Microstrip, Antenna Keepout, Impedance‑Controlled RF Path)

    Properties

    mm

    Pricing & Availability

    Distributor

    Qty 1

    Arrow

    $2.42–$3.20

    Digi-Key

    $2.50–$3.16

    LCSC

    $6.47

    Mouser

    $6.22

    TME

    $0.41

    Verical

    $2.25–$8.66

    Controls