this is information on a product in full production. october 2014 docid024794 rev 3 1/10 10 BAL-NRF02D3 50 ohm nominal input / conjugate match balun to nrf51822-ceaa and nrf51422-ceaa datasheet ? production data figure 1. pin coordinates features ? 50 nominal input / conjugate match to nordic semiconductor chips nrf51422-ceaa and nrf51822-ceaa. ? low insertion loss ? low amplitude imbalance ? low phase imbalance ? small footprint: < 1.2 mm 2 benefits ? very low profile: < 560 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 nrf51422-ceaa, nrf51822-ceaa. description stmicroelectronics BAL-NRF02D3 is an ultraminiature balun. the BAL-NRF02D3 integrates matching network and harmonics filter. matching impedance has been customized for the following nordic semiconductor circuits: nrf51422-ceaa and nrf51822-ceaa. the BAL-NRF02D3 uses stmicroelectronics ipd technology on non-conductive glass substrate which optimize rf performances. the BAL-NRF02D3 has been tested and approved by nordic semiconductor in the nrfgo modules. lead-free flip-chip package 5 bumps se vdd diff gnd diff top view 32 1 a b www.st.com
application BAL-NRF02D3 2/10 docid024794 rev 3 1 application figure 2. application schematic vcc_nrf p0.14 p0.13 p0.12 p0.08 p0.09 p0.10 p0.11 vcc_nrf c8 100nf c9 1.0nf p0.17 p0.18 p0.19 p0.15 p0.16 swdcl k swdio p0.04 p0.03 p0.02 p0.30 p0.00 p0.01 p0.05 p0.06 p0.07 p0.20 p0.24 p0.25 p0.29 p0.28 p0.27 p0.26 p0.21 c10 47nf p0.23 p0.22 p0.31 c1 12pf c2 12pf x1 16mhz c11 100nf vcc_nrf c7 100nf r1 12k c3 2.2nf vdd b8 vdd h8 vss b1 vdd_pa e1 ant1 d1 ant2 c1 vss b4 vss c8 avdd a1 xc1 a2 xc2 a3 nrf51822 dcc b9 p0.30 d8 p0.00 c9 p0.01 e9 p0.02 d9 p0.03 f9 p0.04 f8 p0.05 h9 p0.06 g8 p0.07 h7 p0.08 j8 p0.09 j7 p0.10 h6 p0.11 j6 dec1 a4 p0.21 a5 p0.22 b5 p0.23 b6 p0.24 a6 p0.25 c5 p0.27 a8 p0.26 a7 p0.29 c7 p0.28 b7 p0.17 g2 p0.18 h1 p0.19 f2 p0.20 g1 dec2 f1 p0.12 j5 p0.13 h5 p0.14 h4 p0.15 j4 swdio/nreset j2 swdcl k h2 p0.16 j3 p0.31 e8 vss d7 vss g6 vss g9 vss h3 u1 nrf51822-ceaa ant1 a3 ant2 b3 vdd_pa a2 gnd b1 se a1 b1 BAL-NRF02D3 rf
docid024794 rev 3 3/10 BAL-NRF02D3 characteristics 2 characteristics table 1. absolute maximum ratings (limiting values) symbol parameter value unit min. typ. max. p in input power rfin 20 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 charge device model (jesd22-c101-c) 500 esd ratings machine model, all i/o 200 t op operating temperature (jesd22-a115-c), all i/o -40 +85 c table 2. impedances (t amb = 25 c) symbol parameter value unit min. typ. max. z out nominal differential output impedance matched z in nominal input impedance 50 table 3. rf performance (t amb = 25 c) symbol parameter test condition value unit min. typ. max. f frequency range (bandwidth) 2400 2540 mhz i l insertion loss in bandwidth 1.9 db r l return loss in bandwidth 12 db imb phase imbalance 6 aimb amplitude imbalance 0.15 db 2f0 2nd harmonic s21 attenuation 4880 mhz 10 db 3f0 3rd harmonic s21 attenuation 7320 mhz 20 db
characteristics BAL-NRF02D3 4/10 docid024794 rev 3 2.1 on-board measurements figure 3. transmission (t amb = 25 c) figure 4. insertion loss (t amb = 25 c) -0 -5 -10 -15 -20 -25 -30 db 012 3 4 5 6 78 f (ghz) 2.40 2.44 2.47 2.49 2.50 2.41 2.42 2.43 2.45 2.46 2.48 -0 -0.5 -1.0 -1.5 -2.0 -2.5 -3.0 db f (ghz) figure 5. return loss on se port (t amb = 25 c) figure 6. return loss on diff port (t amb = 25 c) 2.40 2.44 2.47 2.49 2.50 -10 -11 -12 -13 -14 -15 2.41 2.42 2.43 2.45 2.46 2.48 db f (ghz) -15.0 -17.5 -20.0 -22.5 -25.0 2.40 2.44 2.47 2.49 2.50 2.41 2.42 2.43 2.45 2.46 2.48 db f (ghz) figure 7. amplitude imbalance (t amb = 25 c) figure 8. phase imbalance (t amb = 25 c) db 2.40 2.44 2.47 2.49 2.50 0.5 0.4 0.3 0.2 0.1 0.0 -0.1 -0.2 -0.3 -0.4 -0.5 2.41 2.42 2.43 2.45 2.46 2.48 f (ghz) degrees 2.40 2.44 2.47 2.49 2.50 15.0 12.5 10.0 7.5 5.0 2.5 0.0 -2.5 -5.0 -7.5 -7.5 -10.0 -1 .0 5 2.41 2.42 2.43 2.45 2.46 2.48 f (ghz)
docid024794 rev 3 5/10 BAL-NRF02D3 package information 3 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. figure 9. package dimensions 6 ( ? p ? p % x p s y l h z ? p ? p ? ? p ? p ? p ? p ? p ? ? p ? p * 1 ' ' , ) ) ' , ) ) ? p ? p ? p ? 9 ' ' 7 r s y l h z 6 ( ' , ) ) 9 ' ' * 1 ' ' , ) ) ? p ? p ? p ? p ? p ? p ? p ? p ? ? p ? p ? ? p
package information BAL-NRF02D3 6/10 docid024794 rev 3 figure 10. recommended land pattern figure 11. pcb stack-up recommendation soldermask opening ? = 320 m top layer pad ? = 220 m 650 m layer 1 layer 2 layer 3 layer 4 35um 35um 35um 35um 230um 230um 9 30um layer 1 layer 2 layer 3 layer 4
docid024794 rev 3 7/10 BAL-NRF02D3 package information figure 14. marking figure 12. footprint - non solder mask defined figure 13. footprint - solder mask defined copper pad diameter: 220m recommended 180m minimum 260m maximum solder mask opening: 320m recommended 300m minimum 340m maximum solder stencil opening: 220m recommended line to connect copper pad on solder mask opening shopuld be smaller than copper pad diameter solder mask opening: 220m recommended 180m minimum 260m maximum copper pad diameter: 320m recommended 300m minimum solder stencil opening : 220m recommended x y x w z w dot, st logo ecopack grade xx = marking z = manufacturing location yww = datecode
package information BAL-NRF02D3 8/10 docid024794 rev 3 figure 15. flip chip tape and reel specifications note: more information is available in the stmicroelectronics application notes: an2348 flip-chip: ?package description and recommendations for use? an4315: ?BAL-NRF02D3 matched balun with integrated harmonics filter for nordic semiconductor ultralow power transceivers? dot identifying pin a1 location user direction of unreeling all dimensions are typical values in mm 4.0 0.10 2.0 0.05 8.0 +0.30-0.10 1.75 0.10 3.5 0.05 ? 1.50 0.10 0.71 0.05 0.95 0.05 0.20 0.02 1.47 0.05 4.0 0.10 st st st xxz yww xxz yww xxz yww st st st xxz yww xxz yww xxz yww
docid024794 rev 3 9/10 BAL-NRF02D3 ordering information 4 ordering information 5 revision history table 4. ordering information order code marking weight base qty delivery mode BAL-NRF02D3 sk 1.58 mg 5000 tape and reel table 5. document revision history date revision changes 02-jul-2013 1 initial release 30-aug-2013 2 updated table 1 . 13-oct-2014 3 updated figure 9 .
BAL-NRF02D3 10/10 docid024794 rev 3 important notice ? please read carefully stmicroelectronics nv and its subsidiaries (?st?) reserve the right to make changes, corrections, enhancements, modifications, and improvements to st products and/or to this document at any time without notice. purchasers should obtain the latest relevant in formation on st products before placing orders. st products are sold pursuant to st?s terms and conditions of sale in place at the time of o rder acknowledgement. purchasers are solely responsible for the choice, selection, and use of st products and st assumes no liability for application assistance or the design of purchasers? products. no license, express or implied, to any intellectual property right is granted by st herein. resale of st products with provisions different from the information set forth herein shall void any warranty granted by st for such product. st and the st logo are trademarks of st. all other product or service names are the property of their respective owners. information in this document supersedes and replaces information previously supplied in any prior versions of this document. ? 2014 stmicroelectronics ? all rights reserved
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