switches - smt 9 9 - 138 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 hmc270ms8g / 270MS8GE gaas mmic spdt switch non-reflective, dc - 8.0 ghz v04.0607 general description features functional diagram broadband performance: dc - 8 ghz very high isolation: 45 db @ 6 ghz non-re ective design low cost msop-8 package: 14.8 mm 2 electrical specifications, t a = +25 c, with 0/-5v control, 50 ohm system typical applications the hmc270ms8g / hmc270MS8GE is ideal for dc - 8.0 ghz applications: ? catv ? mmds & wirelesslan ? wireless local loop the hmc270ms8g & hmc270MS8GE are broad- band non-re ective gaas spdt switches in 8 lead msop grounded base surface mount plastic packages. covering dc to 8 ghz, the switch offers excellent isolation from 70 to 35 db. the negative control voltage of -5 volts allows operation down to dc. if positive control is required along with high isolation, see the dc to 3.5 ghz hmc284ms8g non- re ective spdt. parameter frequency min. typ. max. units insertion loss dc - 2.0 ghz dc - 6.0 ghz dc - 8.0 ghz 0.8 1.0 1.5 1.2 1.7 2.4 db db db isolation dc - 2.0 ghz dc - 4.0 ghz dc - 6.0 ghz dc - 8.0 ghz 43 42 37 28 48 47 45 33 db db db db return loss on state dc - 2.0 ghz dc - 6.0 ghz dc - 8.0 ghz 11 9 7 14 12 10 db db db return loss rf1, rf2 off state dc - 2.0 ghz dc - 6.0 ghz dc - 8.0 ghz 15 13 10 20 18 15 db db db input power for 1 db compression 0.5 - 8.0 ghz 20 23 dbm input third order intercept (two-tone input power = +7 dbm each tone) 0.5 - 8.0 ghz 33 36 dbm switching characteristics dc - 8.0 ghz trise, tfall (10/90% rf) ton, toff (50% ctl to 10/90% rf) 20 50 ns ns
switches - smt 9 9 - 139 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 hmc270ms8g / 270MS8GE return loss insertion loss isolation v04.0607 gaas mmic spdt switch non-reflective, dc - 8.0 ghz 0.1 and 1 db input compression point input third order intercept point -5 -4 -3 -2 -1 0 0123456789 rf1 rf2 insertion loss (db) frequency (ghz) 25 30 35 40 45 0123456789 third order intercept (dbm) frequency (ghz) 18 19 20 21 22 23 24 25 26 0123456789 1 db compression point 0.1 db compression point compression point (dbm) frequency (ghz) -25 -20 -15 -10 -5 0 0123456789 rfc rf1,2 on rf1,2 off return loss (db) frequency (ghz) -70 -60 -50 -40 -30 -20 -10 0 0123456789 rf1 rf2 isolation (db) frequency (ghz)
switches - smt 9 9 - 140 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 truth table control voltages rfc, rf1, & rf2 should be at <100 mv dc potential. otherwise, dc blocking capacitors are recommended. choose value for lowest frequency of operation. do not hot switch power levels >+13 dbm (vctl = 0/-5vdc) control input signal path state a b rfc to rf1 rfc to rf2 high low on off low high off on state bias condition low 0 to -0.2v @ 10 ua typ. high -5v @ 35 ua typ. to -7v @ 100 ua typ (0.5 vdc) hmc270ms8g / 270MS8GE v04.0607 gaas mmic spdt switch non-reflective, dc - 8.0 ghz
switches - smt 9 9 - 141 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 rf input power, vctl = -5v +24 dbm control voltage range +0.5 to -7.5 vdc storage temperature -65 to +150 c operating temperature -40 to +85 c esd sensitivity (hbm) class 1a electrostatic sensitive device observe handling precautions part number package body material lead finish msl rating package marking [3] hmc70ms8g low stress injection molded plastic sn/pb solder msl1 [1] h270 xxxx hmc270MS8GE rohs-compliant low stress injection molded plastic 100% matte sn msl1 [2] h270 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 hmc270ms8g / 270MS8GE v04.0607 gaas mmic spdt switch non-reflective, dc - 8.0 ghz 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 and ground paddle must be soldered to pcb rf ground.
switches - smt 9 9 - 142 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 suggested driver circuit for hmc270ms8g simple driver using inexpensive standard logic ics provides fast switching using minimum dc current while translating from stan - dard positive voltage ttl or cmos logic to negative voltage gaas ic logic. hmc270ms8g / 270MS8GE v04.0607 gaas mmic spdt switch non-reflective, dc - 8.0 ghz
switches - smt 9 9 - 143 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 eval board layout (top view) the circuit board used in the nal application should be generated with proper rf circuit design tech- niques. signal lines at the rf ports should have 50 ohm impedance and the package ground leads and exposed ground paddle should be connected directly to the ground plane similar to that shown above. the evaluation circuit board shown above is available from hittite microwave corporation upon request. list of materials for evaluation pcb 107949 [1] *r1 = r2 = 100 ohm. these are optional resistors. item description j1 - j3 pcb mount sma connector j4 - j5 dc pin c1 - c3 chip capacitor, 0402 pkg, choose value for lowest frequency of operation. pcbs are pro- vided with 100 ~ 300 pf capacitors. user may jumper capacitor mounting gaps on pcb to allow operation to dc. r1 - r2 100 ohm resistor, 0402 pkg. u1 hmc270ms8g / hmc270MS8GE spdt switch pcb [2] 102807 evaluation pcb 2.0 x 2.6 [1] reference this number when ordering complete evaluation pcb [2] circuit board material: rogers 4350 hmc270ms8g / 270MS8GE v04.0607 gaas mmic spdt switch non-reflective, dc - 8.0 ghz
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