BALF-SPI-01D3 50 nominal input / conjugate match balun to SPIRIT1, with integrated harmonic filter Datasheet production data Features 50 nominal input / conjugate match to SPIRIT1 Low insertion loss Low amplitude imbalance Low phase imbalance Small footprint Flip-Chip package 6 bumps Benefits Figure 1. Pin coordinates (top view) Very low profile (< 670 m) High RF performance RF BOM and area reduction *1 5 B3 Applications % 868 MHz and 915 MHz impedance matched 17 5 B1 balun filter Optimized for SPIRIT1 sub GHz RFIC 7 *1 & Description STMicroelectronics BALF-SPI-01D3 is an ultra Figure 2. Application schematic (top view) miniature balun. The BALF-SPI-01D3 integrates matching network and harmonics filters. Matching impedance has been customized for the SPIRIT1 ST transceiver. & The BALF-SPI-01D3 uses STMicroelectronics 9 & IPD technology on non-conductive glass & substrate which optimize RF performance. *3,2 9% 95(* 7 *3,2 *3,2 6 1 / / & 0,62 6036 ( W LJLWDO LQWHUIDFH 026, 6036 ( W 63,5,7 / 6&/. 7 *1 B3 &6Q & 1 3 287 1 , 79% 5) QWHQQD 5) % /) 63, / 7 & & November 2015 DocID025035 Rev 5 1/12 This is information on a product in full production. www.st.com 12 9 *3,2 Characteristics BALF-SPI-01D3 1 Characteristics Table 1. Absolute maximum ratings (limiting values) Value Symbol Parameter Unit Min. Typ. Max. P Input power RFIN - 20 dBm IN ESD ratings human body model (JESD22-A114-C), all I/O one at a 2000 - time while others connected to GND V V ESD ESD ratings machine model, all I/O 200 - T Operating temperature (JESD22-A115-C), all I/O -40 - +85 C OP Table 2. Impedances (T = 25 C) amb Value Symbol Parameter Unit Min. Typ. Max. Z Nominal differential RX balun impedance RX - match to SPIRIT1 - Z Nominal TX filter impedance TX Z Antenna impedance - 50 - ANT Table 3. RF performance (T = 25 C) amb Value Symbol Parameter Test condition Unit Min. Typ. Max. F Frequency range (bandwidth) 779 868 956 MHz Insertion loss in bandwidth S21 -1.7 -2 dB RX-ANT without mismatch loss (RX balun) Insertion loss in bandwidth S21 -1.4 -2 dB TX-ANT without mismatch loss (TX filter) S11 Input return loss in bandwidth (RX balun) -23 -15 dB ANT S11 Input return loss in bandwidth (TX filter) -15 -12 dB ANT Output phase imbalance (RX balun) 5 10 15 imb A Output amplitude imbalance (RX balun) 0.35 0.8 dB imb Attenuation at 2fo -35 Att Harmonic levels (TX filter) dBm Attenuation at 3fo -40 2/12 DocID025035 Rev 5