STMicroelectronics has released nine chip-scale passive RF balun ICs that include antenna impedance-matching and harmonic filtering for its STM32WL sub0GHz wireless microcontrollers. Intended to sit in Rx and TX paths between the MCUs and their antennas, the 8bump parts are in 2.13 x 1.83mm packages with a maximum height of 630µm after reflow. Applications are …
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