switches - smt 8 8 - 108 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 general description features functional diagram rohs compliant product low insertion loss (2 ghz): 0.5 db single positive supply: vdd = +5v integrated 2:4 ttl decoder 16 lead qsop package electrical specifications, t a = +25 c, for ttl control and vdd = +5v in a 50 ohm system typical applications the hmc241qs16 & hmc241QS16E are ideal for: ? base stations & portable wireless ? catv / dbs ? wireless local loop ? test equipment the hmc241qs16 & hmc241QS16E are general purpose low-cost non-re ective sp4t switches in 16-lead qsop packages. covering dc - 3.5 ghz, this switch offers high isolation and has a low insertion loss of 0.5 db at 2 ghz. the switch offers a single positive bias and true ttl/cmos compatibility. a 2:4 decoder is integrated on the switch requiring only 2 control lines and a positive bias to select each path, replacing 8 control lines normally required by gaas sp4t switches. parameter frequency min. typ. max. units insertion loss dc - 1.0 ghz dc - 2.0 ghz dc - 2.5 ghz dc - 3.5 ghz 0.5 0.5 0.6 1.0 0.8 0.8 0.9 1.5 db db db db isolation dc - 1.0 ghz dc - 2.0 ghz dc - 2.5 ghz dc - 3.5 ghz 40 32 28 23 45 36 32 26 db db db db return loss on state dc - 2.5 ghz dc - 3.5 ghz 17 9 21 12 db db return loss rf1-4 off state 0.3 - 3.5 ghz 0.5 - 2.5 ghz 8 12 12 16 db db input power for 1db compression 0.3 - 3.5 ghz 22 25 dbm input third order intercept (two-tone input power = +7 dbm each tone) 0.3 - 3.5 ghz 40 44 dbm switching characteristics 0.3 - 3.5 ghz trise, tfall (10/90% rf) ton, toff (50% ctl to 10/90% rf) 40 150 ns ns gaas mmic sp4t non-reflective switch, dc - 3.5 ghz v04.0404 hmc241qs16 / 241QS16E
switches - smt 8 8 - 109 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 bias voltage & current ttl/cmos control voltages vdd range = +5.0 vdc 10% vdd (vdc) idd (typ.) (ma) idd (max.) (ma) +5.0 4.0 7.0 state bias condition low 0 to +0.8 vdc @ 5ua typ. high +2.0 to +5.0 vdc @ 70 ua typ. truth table note: dc blocking capacitors are required at ports rfc and rf1, 2, 3, 4. control input signal path state a b rfcom to: low low rf1 high low rf2 low high rf3 high high rf4 gaas mmic sp4t non-reflective switch, dc - 3.5 ghz v04.0404 hmc241qs16 / 241QS16E -3 -2.5 -2 -1.5 -1 -0.5 0 01234 +25 c +85 c -40 c insertion loss (db) frequency (ghz) -30 -25 -20 -15 -10 -5 0 01234 rfc rf1-4 "on" rf1-4 "off" return loss (db) frequency (ghz) -70 -60 -50 -40 -30 -20 -10 0 01234 rf1 rf2 rf3 rf4 isolation (db) frequency (ghz)
switches - smt 8 8 - 110 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 bias voltage range (port vdd) +7.0 vdc control voltage range (a & b) -0.5v to vdd +1 vdc channel temperature 150 c thermal resistance (insertion loss path) 210 c/w thermal resistance (terminated path) 250 c/w storage temperature -65 to +150 c operating temperature -40 to +85 c maximum input power vdd = +5 vdc +20 dbm (0.05 - 0.5 ghz) +27 dbm (0.5 - 3.5 ghz) electrostatic sensitive device observe handling precautions 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 leadframe plating msl rating package marking [3] hmc241qs16 low stress injection molded plastic silica and silicon impregnated sn/pb solder msl1 [1] hmc241 xxxx hmc241QS16E rohs-compliant low stress injection molded plastic silica and silicon impregnated 100% matte tin msl1 [2] hmc241 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 gaas mmic sp4t non-reflective switch, dc - 3.5 ghz v04.0404 hmc241qs16 / 241QS16E
switches - smt 8 8 - 111 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 pcb the circuit board used in the nal application should be generated with proper rf circuit design techniques. signal lines at the rf port should have 50 ohm impedance and the package ground leads should be connected directly to the ground plane similar to that shown above. the evalua- tion circuit board shown above is available from hittite microwave corporation upon request. list of materials for evaluation pcb 102913 [1] item description j1 - j5 pcb mount sma rf connector j6 - j9 dc pin c1 - c5 330 pf capacitor, 0402 pkg. u1 hmc241qs16 / hmc241QS16E sp4t switch pcb [2] 102809 evaluation pcb [1] reference this number when ordering complete evaluation pcb [2] circuit board material: rogers 4350 gaas mmic sp4t non-reflective switch, dc - 3.5 ghz v04.0404 hmc241qs16 / 241QS16E
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