BALF-NRG-01D3 STMicroelectronics

BALF-NRG-01D3 50 ohm nominal input / conjugate match balun balun to BlueNRG tranceiver, with integrated harmonic filter Datasheet - production data Description STMicroelectronics BALF-NRG-01D3 is an ultra miniature balun. The BALF-NRG-01D3 integrates matching network and harmonics filter. Matching impedance has been customized for the BlueNRG ST transceiver (both QFN and WLCSP versions). It is using STMicroelectronics IPD technology on non conductive glass substrate which optimizes RF performance. Flip-Chip (4 bumps) package Figure 1: Application schematic with QFN type BlueNRG Features 50 nominal input / conjugate match to BlueNRG device Low insertion loss Low amplitude imbalance Low phase imbalance Wafer level chip scale package (WLCSP) Benefits Very low profile < 670 m High RF performance RF BOM reduction Figure 2: Application schematic with WLCSP type Small footprint BlueNRG Solder a 10u 0805 between 1-2 or a 0R0 0805 between 1-3 Applications Bluetooth low energy impedance matched balun filter Optimized for ST BlueNRG RFIC May 2017 DocID026543 Rev 5 1/15 www.st.com This is information on a product in full production. Characteristics BALF-NRG-01D3 1 Characteristics Table 1: Absolute maximum ratings (limiting values) Value Symbol Parameter Unit Min. Typ. Max. PIN Input power RFIN - 20 dBm ESD ratings MIL STD883C (HBM: C = 100 pF, R = 1.5 , 2000 - air discharge) V V ESD ESD ratings machine model (MM: C = 200 pF, R = 25 W, L 200 - = 500 nH) T Operating temperature -40 - +105 C OP Table 2: Impedances (Tamb = 25 C) Value Symbol Parameter Unit Min. Typ. Max. ZOUT Nominal differential output impedance - Match to BlueNRG - Z Nominal input impedance - 50 - IN Table 3: RF performance (T = 25 C) amb Value Symbol Parameter Test condition Unit Min. Typ. Max. f Frequency range (bandwidth) 2400 2500 MHz S Input return loss bandwidth -20 dB 11 S21 Insertion loss -1.1 dB H2 -8 H3 -38 S Harmonic rejection (differential mode) dB 21 H4 -31 H5 -23 Output phase imbalance 7 imb Aimb Output amplitude imbalance 0.5 dB 2/15 DocID026543 Rev 5