Description

The BAL-2690D3U is a balun designed to transform single ended signals to differential signals in Bluetooth applications.

The BAL-2690D3U has been customized for the STLC2690 Bluetooth transceiver with 0.8 dB insertion losses in the bandwidth (2400 MHz - 2500 MHz) and with a specific requirement for the SCC22 parameter.

The BAL-2690D3U has been designed using STMicroelectronics IPD (integrated passive device) technology on non conductive glass substrate to optimize RF performances.

Features

■ 50 Ω nominal input / 30+j25 output differential impedance

■ Low insertion loss

■ Low amplitude imbalance

■ Low phase imbalance

■ Small footprint: BAL-2690D3U

Benefits

■ Very low profile (<700 µm)

■ High RF performances

■ RF BOM and area reduction

Applications

Balun transformer for applications such as:

■ Bluetooth STLC2690

■ Mobile phone