switches - smt 10 10 - 220 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 hmc347g8 gaas mmic hermetic smt spdt switch, dc - 8 ghz v02.0605 general description features functional diagram the hmc347g8 is a broadband high isolation non- re ective gaas mesfet spdt switch in a 8 lead glass/metal (hermetic) surface mount package. covering dc to 8 ghz, the switch features >42 db isolation up to 2 ghz and >25 db isolation up to 8 ghz. the switch operates using complementary negative control voltage logic lines of -5/0v and requires no bias supply. this spdt is a good replacement for the hmc132g7 spdt. isolation: 42 db @ 2.5 ghz 30 db @ 6 ghz insertion loss: 2 db @ 6 ghz non-re ective design 8 lead hermetic smt package electrical speci cations, t a = +25 c, with 0/-5v control, 50 ohm system typical applications the hmc347g8 is ideal for: ? telecom infrastructure ? microwave radio & vsat ? military radios, radar & ecm ? test instrumentation parameter frequency min. typ. max. units insertion loss dc - 2.0 ghz dc - 6.0 ghz dc - 8.0 ghz 2.0 2.2 2.2 2.3 2.6 2.7 db db db isolation dc - 2.0 ghz dc - 6.0 ghz dc - 8.0 ghz 39 25 22 43 28 25 db db db return loss on state dc - 2.0 ghz dc - 8.0 ghz 9 6 12 10 db db return loss rf1, rf2 off state dc - 2.0 ghz dc - 8.0 ghz 9 6 db db input power for 1 db compression 0.5 - 8.0 ghz 19 23 dbm input third order intercept (two-tone input power= +7 dbm each tone, 1 mhz tone separation) 0.5 - 8.0 ghz 38 43 dbm switching characteristics trise, tfall (10/90% rf) ton, toff (50% ctl to 10/90% rf) dc - 8.0 ghz 3 6 ns ns
switches - smt 10 10 - 221 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 input third order intercept point return loss 0.1 and 1 db input compression point insertion loss isolation hmc347g8 gaas mmic hermetic smt spdt switch, dc - 8 ghz v02.0605 -5 -4 -3 -2 -1 0 012345678910 + 25c + 85c - 40c insertion loss (db) frequency (ghz) 10 15 20 25 30 0246810 1 db compression point 0.1 db compression point input p1db (dbm) frequency (ghz) 30 35 40 45 50 0246810 +25c +85c -40c input ip3 (dbm) frequency (ghz) -20 -15 -10 -5 0 012345678910 rfc rf1, rf2 on rf1, rf2 off return loss (db) frequency (ghz) -70 -60 -50 -40 -30 -20 -10 0 012345678910 rf1 rf2 isolation (db) frequency (ghz)
switches - smt 10 10 - 222 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 outline drawing 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 max. high -5v @ 10 ua typ. to -7v @ 40 ua typ. ( 0.5 vdc) notes: 1. package material: alumina loaded borosilicate glass. 2. lead, base, cover material: kovar? (#7052 corning). 3. plating: electrolytic gold 50 microinches min., over electrolytic nickel 50 microinches min. 4. dimensions are in inches [millimeters]. 5. tolerances: .005 [0.13] unless otherwise specified. 6. all ground leads and ground paddle must be soldered to pcb rf ground. caution: do not hot switch power levels greater than +13 dbm (vctl = 0/-5 vdc). absolute maximum ratings rf input power (vctl = -5v) +27 dbm control voltage range (a & b) +0.5v to -7.5 vdc channel temperature 150 c thermal resistance (insertion loss path) 440 c/w thermal resistance (terminated path) 540 c/w storage temperature -65 to +150 c operating temperature -55 to +85 c esd sensitivity (hbm) class 1a electrostatic sensitive device observe handling precautions hmc347g8 gaas mmic hermetic smt spdt switch, dc - 8 ghz v02.0605
switches - smt 10 10 - 223 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 pin descriptions suggested driver circuit pin number function description interface schematic 1, 4, 7 rfc, rf1, rf2 this pin is dc coupled and matched to 50 ohm. blocking capacitors are required if rf line potential is not equal to 0v. 2, 3, 8 gnd package bottom must also be connected to pcb rf ground. 5 ctla see truth table and control voltage table. 6 ctlb see truth table and control voltage table. hmc347g8 gaas mmic hermetic smt spdt switch, dc - 8 ghz v02.0605
switches - smt 10 10 - 224 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 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. list of materials for evaluation pcb 107261 [1] item description j1 - j3 pcb mount sma rf connector j4 - j6 dc pin u1 hmc347g8 spdt switch pcb [2] 102088-3 evaluation pcb [1] reference this number when ordering complete evaluation pcb [2] circuit board material: rogers 4350 hmc347g8 gaas mmic hermetic smt spdt switch, dc - 8 ghz v02.0605
switches - smt 10 10 - 225 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 notes: hmc347g8 gaas mmic hermetic smt spdt switch, dc - 8 ghz v02.0605
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