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this is information on a product in full production. september 2015 docid026543 rev 4 1/13 13 BALF-NRG-01D3 50 ? nominal input / conjugate match balun to bluenrg transceiver, with integrated harmonic filter datasheet ? production data 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 ? small footprint applications ? bluetooth low energy impedance matched balun filter ? optimized for st bluenrg rfic 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. figure 1. application schematic with qfn type bluenrg figure 2. application schematic with wlcsp type bluenrg flip-chip package 4 bumps www.st.com
characteristics BALF-NRG-01D3 2/13 docid026543 rev 4 1 characteristics table 1. absolute maximum ratings (limiting values) symbol parameter value unit min. typ. max. p in input power rfin - 10 dbm v esd esd ratings human body model (jesd22-a114-c), all i/o one at a time while others connected to gnd 2000 - v esd ratings machine model (mm: c = 200 pf, r = 25 ? , l = 500 nh) 200 - t op operating temperature -40 - +105 c table 2. impedances (t amb = 25 c) symbol parameter value unit min. typ. max. z diff nominal differential impedance - match to bluenrg - ? z ant antenna impedance - 50 - ? table 3. rf performance (t amb = 25 c) symbol parameter test condition value unit min. typ. max. f frequency range (bandwidth) 2400 2500 mhz s11 input return loss bandwidth -20 db s21 insertion loss -1.1 db s21 harmonic rejection (differential mode) h2 -8 db h3 -38 h4 -31 h5 -23 phase_imbal output phase imbalance 7 ampl_imbal output amplitude imbalance 0.5 db docid026543 rev 4 3/13 BALF-NRG-01D3 characteristics figure 3. differential transmission figure 4. return loss g % i * + ] g % i * + ] figure 5. insertion loss figure 6. h2 filtering g % i * + ] g % i * + ] figure 7. h3 filtering figure 8. h4 filtering g % i * + ] g % i * + ] characteristics BALF-NRG-01D3 4/13 docid026543 rev 4 figure 11. phase imbalance figure 9. h5 filtering figure 10. amplitude imbalance g % i * + ] g % i * + ] g h j i * + ] docid026543 rev 4 5/13 BALF-NRG-01D3 BALF-NRG-01D3 with qfn type bluenrg 2 BALF-NRG-01D3 with qfn type bluenrg figure 12. application board evb (2 layers) figure 13. recommended balun land pattern (evb) smt = 320 m 180 m 254 m top and spt = 220 m BALF-NRG-01D3 with qfn type bluenrg BALF-NRG-01D3 6/13 docid026543 rev 4 2.1 BALF-NRG-01D3 measurements on qfn evb figure 16. pout figure 14. harmonics figure 15. sensitivity docid026543 rev 4 7/13 BALF-NRG-01D3 BALF-NRG-01D3 with wlcsp type bluenrg 3 BALF-NRG-01D3 with wlcsp type bluenrg figure 17. recommended balun land pattern (wlcsp) figure 18. pcb stack-up recommendation 800 m 220 m BALF-NRG-01D3 with wlcsp type bluenrg BALF-NRG-01D3 8/13 docid026543 rev 4 3.1 BALF-NRG-01D3 measurements on wlcsp evb figure 21. pout figure 19. harmonics figure 20. sensitivity docid026543 rev 4 9/13 BALF-NRG-01D3 package information 4 package information ? epoxy meets ul94, v0 ? lead-free package in order to meet environmental requirements, st offers these devices in different grades of ecopack ? packages, depending on their level of environmental compliance. ecopack ? specifications, grade definitions and product status are available at: www.st.com . ecopack ? is an st trademark. 4.1 flip-chip package information figure 22. flip-chip package outline ' ( i ' i ( $ $ f f f $ ? e 6 ( ' ( % r w w r p y l h z v l g h y l h z 7 r s y l h z package information BALF-NRG-01D3 10/13 docid026543 rev 4 table 4. flip-chip package mechanical data dim. mm min. typ. max. a 0.580 0.630 0.680 a1 0.180 0.205 0.230 a2 0.380 0.40 0.420 b 0.230 0.255 0.280 d 1.375 1.40 1.425 d1 0.99 1 1.01 e 0.825 0.85 0.875 e1 0.39 0.4 0.41 se 0.2 fd 0.17 0.2 0.23 fe 0.195 0.225 0.255 ccc 0.05 $ 0.025 figure 23. footprint - 3 mils stencil -non solder mask defined figure 24. footprint - 3 mils stencil - solder mask defined & |