switches - smt 8 8 - 96 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com hmc239s8 / 239S8E gaas mmic spdt switch dc - 2.5 ghz v02.0805 general description features functional diagram low insertion loss: 0.4 db high isolation: 35 db fast switching speed: 2ns high input ip3: +50 dbm electrical specifications, t a = +25 c, vctl = 0/-5v, 50 ohm system typical applications the hmc239s8 / hmc239S8E is ideal for: ? mmds & wirelesslan ? basestation infrastructure ? portable wireless the hmc239s8 & hmc239S8E are low-cost gaas mmic spdt switches in 8-lead soic packages. the switch can control signals from dc to 2.5 ghz. it is especially suited for low or medium power applica- tions which require extremely fast switching with minimal insertion loss. the two control voltages require a minimal amount of dc current which is opti- mal for battery powered radio systems. rf1 and rf2 are re ective shorts when off. parameter frequency min. typ. max. units insertion loss dc - 0.1 ghz dc - 0.5 ghz dc - 1.0 ghz dc - 2.0 ghz dc - 2.5 ghz 0.4 0.4 0.5 0.6 0.7 0.6 0.6 0.7 0.8 1.0 db db db db db isolation dc - 0.5 ghz dc - 1.0 ghz dc - 2.0 ghz dc - 2.5 ghz 33 26 18 14 36 29 21 17 db db db db return loss dc - 1.0 ghz dc - 2.0 ghz dc - 2.5 ghz 18 17 15 21 21 20 db db db input power for 1db compression 0/-5v control 0.5 - 1.0 ghz 0.5 - 2.5 ghz 25 23 29 27 dbm dbm input third order intercept (two-tone input power = +7 dbm each tone) 0/-5v control 0.5 - 1.0 ghz 0.5 - 2.5 ghz 45 44 50 49 dbm dbm switching characteristics dc - 2.5 ghz trise, tfall (10/90% rf) ton, toff (50% ctl to 10/90% rf) 2 10 ns ns
switches - smt 8 8 - 97 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com return loss insertion loss isolation input 0.1 and 1.0 db compression vs. control voltage input third order distortion vs. control voltage hmc239s8 / 239S8E gaas mmic spdt switch dc - 2.5 ghz v02.0805 20 25 30 35 compression (dbm) -9 -8 -7 -6 -5 -4 control voltage (vdc) p1 db at 900 mhz p1 db at 1900 mhz p0.1 db at 900 mhz p0.1 db at 1900 mhz 45 50 55 ip3 (dbm) -9 -8 -7 -6 -5 -4 control voltage ( vdc ) 1900 mhz 900 mhz -3 -2.5 -2 -1.5 -1 -0.5 0 0123 insertion loss (db) frequency (ghz) -40 -30 -20 -10 0 0123 return loss (db) frequency (ghz) -60 -50 -40 -30 -20 -10 0 0123 isolation (db) frequency (ghz) rf1 rf2
switches - smt 8 8 - 98 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com compression vs. bias voltage caution: do not operate in 1 db compression at power levels above +30 dbm and do not hot switch power levels greater than +20 dbm (vctl= -5 vdc). distortion vs. bias voltage truth table *control input voltage tolerances are 0.2 vdc. control input* control current signal path state a (vdc) b (vdc) ia (ua) ib (ua) rf to rf1 rf to rf2 -5 0 -25 10 on off 0-510-25offon -6 0 -75 30 on off 0-630-75offon -7 0 -130 60 on off 0-760-130offom -8 0 -190 80 on off 0-880-190offon carrier at 900 mhz carrier at 1900 mhz control input input power for 0.1 db compression input power for 1.0 db compres- sion input power for 0.1 db compression input power for 1.0 db compression (vdc) (dbm) (dbm) (dbm) (dbm) -5 25 29 23 27 -6 27 31 26 29 -8 29 33 28 32 control input third order intercept (dbm) +7 dbm each tone (vdc) 900 mhz 1900 mhz -5 50 49 -8 53 51 hmc239s8 / 239S8E gaas mmic spdt switch dc - 2.5 ghz v02.0805
switches - smt 8 8 - 99 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com absolute maximum ratings outline drawing max. input power (vctl = 0/-8v) 0.05 ghz 0.5 - 2 ghz +27 dbm +34 dbm control voltage range (a & b) +2 to -12 vdc storage temperature -65 to +150 c operating temperature -40 to +85 c electrostatic sensitive device observe handling precautions hmc239s8 / 239S8E gaas mmic spdt switch dc - 2.5 ghz v02.0805 notes: 1. leadframe material: copper alloy 2. dimensions are in inches [millimeters] 3. dimension does not include moldflash of 0.15mm per side. 4. dimension does not include moldflash of 0.25mm per side. 5. all ground leads must be soldered to pcb rf ground. part number package body material lead finish msl rating package marking [3] hmc239s8 low stress injection molded plastic sn/pb solder msl1 [1] hmc239 xxxx hmc239S8E rohs-compliant low stress injection molded plastic 100% matte sn msl1 [2] hmc239 xxxx [1] max peak re ow temperature of 235 c [2] max peak re ow temperature of 260 c [3] 4-digit lot number xxxx package information
switches - smt 8 8 - 100 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com simple driver using inexpensive standard logic ics provides fast switching using minimum dc current. typical application circuit hmc239s8 / 239S8E gaas mmic spdt switch dc - 2.5 ghz v02.0805
switches - smt 8 8 - 101 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com evaluation circuit board the circuit board used in the nal application should be generated with proper rf circuit design tech- niques. signal lines at the rf port should have 50 ohm impedance and the package ground leads and package bottom should be connected directly to the ground plane similar to that shown above. the eval- uation circuit board shown above is available from hittite microwave corporation upon request. item description j1 - j3 pcb mount sma rf connector j4 - j6 dc pin c1 - c3 330 pf capacitor, 0402 pkg. u1 hmc239s8 / hmc239S8E spdt switch pcb [2] 101780 evaluation pcb [1] reference this number when ordering complete evaluation pcb [2] circuit board material: rogers 4350 hmc239s8 / 239S8E gaas mmic spdt switch dc - 2.5 ghz v02.0805 list of materials for evaluation pcb 101782 [1]
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