BALF-NRF01J5 STMicroelectronics

BALF-NRF01J5 Datasheet 50 ultra thin balun with integrated harmonic filter / conjugate match balun to nRF51822-CTAA/CTAC in WLCSP Features 50 nominal input / conjugate match to Nordic Semiconductor chips nRF51822 WLCSP Low insertion loss Low amplitude imbalance Low phase imbalance 2 Small footprint: < 1.2 mm Extra low profile < 350 m after reflow High RF performance RF BOM and area reduction Applications 2.45 GHz impedance matched balun filter Optimized for Nordic s chip set nRF51822-CTAA, CTAC Wearable applications Description This device is an ultraminiature extra thin balun that integrates matching network and harmonics filter. Matching impedance has been customized for the nRF51822-CTAA and CTAC WLCSP Nordic Semiconductor circuits. Product status Based on IPD technology on high resistivity silicium it optimizes the RF performance. BALF-NRF01J5 The BALF-NRF01J5 has been tested and approved by Nordic Semiconductor. STMicroelectronics qualified this product intended to be used in System in Package module based on standard reliability procedure. For more details, please contact ST representatives. It is the responsibility of the customer to perform qualification reliability verifications as it is related to customer specific application / mission profile and module design / process. DS12205 - Rev 3 - April 2018 www.st.com For further information contact your local STMicroelectronics sales office.BALF-NRF01J5 Characteristics 1 Characteristics Table 1. Absolute ratings (limiting values) Value Symbol Parameter Unit Min. Typ. Max. P Input power RF - 20 dBm IN IN ESD ratings human body model (JESD22-A114-C), all I/O one at a time while others 2000 - connected to GND V V ESD ESD ratings charge device model (JESD22-C101-C) 500 - ESD ratings machine model, all I/O 200 - T Operating temperature -40 - +85 C OP Table 2. Impedances (T = 25 C) amb Value Symbol Parameter Unit Min. Typ. Max. Z Nominal differential output impedance - matched - OUT Z Nominal input impedance - 50 - IN Table 3. RF performances (T = 25 C) amb Value Symbol Parameter Unit Min. Typ. Max. f Frequency range (bandwidth) 2400 2540 MHz I Insertion loss in bandwidth 2.2 2.4 dB L R Return loss in bandwidth 9 12 dB L imb Phase imbalance -7.2 7 7.2 Aimb Amplitude imbalance -0.5 0.3 0.5 dB 2f0 2nd harmonic S21 attenuation 4880 MHz 12 13.5 dB 3f0 3rd harmonic S21 attenuation 7320 MHz 24 25 dB DS12205 - Rev 3 page 2/9