Description
STMicroelectronics BALF-2690-02D3 is a balun design to transform single ended signal to differential signals in Bluetooth applications. This BALF-2690-02D3 has been customized for STLC2690 Bluetooth transceiver with less than 1.2 dB insertion losses in the bandwidth (2400 MHz-2500 MHz). The BALF-2690-02D3 has been designed using STMicroelectronics IPD (integrated passive device) technology on non-conductive glass substrate which optimize RF performance.

Features
■ 50 Ω nominal input / matched output differential impedance
■ Integrated harmonic filter
■ Low insertion loss
■ Low amplitude imbalance
■ Low phase imbalance
■ Small footprint < 1.54 mm² Benefits
■ Very low profile (< 560 µm after reflow)
■ High RF performance
■ RF BOM and area reduction

Applications
■ Bluetooth STLC2690 application
■ Mobile phone application