High-quality RF IPD baluns for ISM bands VISUAL ZONE Simplify RF complexity The tremendous growth of Internet of Things is leading to the development of increasingly smaller wearables that require easy-to-implement electronic components in environments with higher densities. Tuned for high RF integration, ST’s RF IPD baluns provide improved system performances while simplifying RFIC to antenna matching network complexity. KEY BENEFITS KEY APPLICATIONS Integration • Beacons • Integrated matched balun with harmonic • Wireless toys filter • Less than 560 µm height after reflow • Smart watches • Smartbands Performance • Drones • Improve RF performance • Low insertion loss • Thermostats • Fitness devices • Low amplitude imbalance • Low phase imbalance Simplicity In addition, designed with integrated harmonic filters, they make it easy to comply with major EMC regulations. • Replaces twisty discrete SMD matching network • Single-chip solution www.st.com BALUN PORTFOLIO RF IC Matched Balun Frequency (MHz) Integrated filter Size Package SPIRIT 1 BALF-SPI-01D3 868-915 Yes 1.4 mm x 1.2 mm WLCSP SPIRIT 1 BALF-SPI-02D3 433 Yes 1.4 mm x 1.2 mm WLCSP STLC2690 BALF-2690-02D3 2400 Yes 1.64 mm x 0.94 mm WLCSP BLUENRG BLUENRG-MS BALF-NRG01D3 2400 Yes 1.4 mm x 0.85 mm WLCSP CC1101 BALF-CC1101-01D3 868-915 No 2.0 mm x 1.0 mm WLCSP CC2540/43/45 CC2530/31/33 BAL-CC25-01D3 2400 No 0.9 mm x 0.9 mm WLCSP CC2541 BALF-CC25-02D3 2400 Yes 0.9 mm x 0.9 mm WLCSP CC2650/CC2640 CC2630/CC2620 CC2610 BALF-CC26-01D3 2400 Yes 0.9 mm x 0.9 mm WLCSP nRF51822-QFAACx nRF51822-QFABAx nRF51422-QFAACx BAL-NRF01D3 2400 Yes 1.5 mm x 1.0 mm WLCSP nRF51822-CxAx nRF51422-CxAx BAL-NFR02D3 2400 Yes 1.4 mm x 0.9 mm WLCSP nRF51822-QFAAHx nRF51822-QFACAx nRF51422-QFAAFx nRF51422-QFACAx BAL-NRF01E3 2400 Yes 1.5 mm x 1.0 mm LGA nRF51822-QFAAGx nRF51822-QFABBx nRF51422-QFAAEx nRF51422-QFABAx BALF-NRF01D3 2400 Yes 1.5 mm x 1.0 mm WLCSP EXAMPLE OF BLUETOOTH LOW ENERGY RF IPD BALUN DIFF+ SE Z DIFF- Impedance matching Filter Balun GND © STMicroelectronics - May 2016 - Printed in United Kingdom - All rights reserved The STMicroelectronics corporate logo is a registered trademark of the STMicroelectronics group of companies All other names are the property of their respective owners Order code: FLBALUN0516 For more information on ST products and solutions, visit www.st.com