Description
STMicroelectronics BAL-CW1250D3 is a balun (balanced/unbalanced device) designed to transform a single ended signal to differential signals in WLAN application. This BAL-CW1250D3, with low insertion losses in the bandwidth 2400 MHz to 2500 MHz, has been customized for CW1250, CW1150, CW1260, CW1160 transceiver. The differential output embeds an integrated matching network adapted to the transceiver. The BAL-CW1250D3 has been designed using STMicroelectronics IPD (integrated passive device) technology on non-conductive glass substrate to optimize RF performance.

Features
■ 50 Ω nominal input / match ST-Ericsson RF IC CW1250, CW1150, CW1260, CW1160
■ Low insertion loss
■ Low amplitude imbalance
■ Low phase imbalance
■ DC blocking access on single RF input
■ Small footprint: < 1.2 mm2 Benefits
■ Extremely low profile (< 550 µm after reflow)
■ Integrate matching network
■ High RF performance
■ RF components count and area reduction

Applications
■ Balun with integrated matching for ST-Ericsson RF IC CW1250, C1150, CW1260