From Semtech reference design to RF fine-tuned product
summary
Shows how a Semtech reference design becomes a tuned product by chaining simulation, PCB layout, measurement and iterative tuning; uses basic Smith‑chart tools, network analyzer, impedance tuner/load‑pull, spectrum analyzer and selective soldering to adjust LC matching and a two‑stage harmonic filter (notch + pi). Provides concrete targets and parts: 14–15 dBm output (SX1261) and 22 dBm option (SX1262), load‑pull to find Zopt, and aim: <30 mA RX current and −137 dBm sensitivity at SF12.
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chapters (5)
- 0:00Start
- 3:56SX1261 Reference Design
- 6:54TX Matching
- 9:27Component Tuning: Trial and Error
- 11:13RX Matching
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