switches - smt 10 10 - 238 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 HMC349LP4C / 349lp4ce high isolation spdt non-reflective switch, dc - 4 ghz v02.1205 general description features functional diagram high isolation: 67 db @ 1 ghz 62 db @ 2 ghz single positive control: 0/+5v +52 dbm input ip3 non-re ective design all off state 16 mm 2 leadless qfn smt package typical applications the HMC349LP4C / HMC349LP4Ce is ideal for: ? basestation infrastructure ? mmds & 3.5 ghz wll ? catv/cmts ? test instrumentation the HMC349LP4C & HMC349LP4Ce are high isolation non-re ective dc to 4 ghz gaas mesfet spdt switches in low cost leadless surface mount packages. the switch is ideal for cellular/pcs/3g basestation applications yielding 60 to 65 db iso-lation, low 0.9 db insertion loss and +52 dbm input ip3. power handling is excellent up through the 3.5 ghz wll band with the switch offering a p1db compression point of +31 dbm. on-chip circuitry allows a single positive voltage control of 0/+5 volts at very low dc currents. an enable input (en) set to logic high will put the switch in an all off state. electrical speci cations, t a = +25 c, vctl = 0/+5 vdc, vdd = +5 vdc, 50 ohm system parameter frequency min. typ. max. units insertion loss dc - 1.0 ghz dc - 2.0 ghz dc - 3.0 ghz dc - 4.0 ghz 0.9 1.0 1.2 1.4 1.2 1.3 1.5 1.7 db db db db isolation (rfc to rf1/rf2) dc - 1.0 ghz dc - 4.0 ghz 60 55 67 62 db db return loss (on state) dc - 2.0 ghz dc - 3.0 ghz dc - 4.0 ghz 20 15 13 db db db return loss (off state) 0.5 - 4.0 ghz 15 db input power for 1 db compression 0.25 - 4.0 ghz 27 31 dbm input third order intercept (two-tone input power = +7 dbm each tone) 0.25 - 1.0 ghz 1.0 - 2.0 ghz 2.0 - 3.0 ghz 3.0 - 4.0 ghz 52 50 49 46 dbm dbm dbm dbm switching speed dc - 4.0 ghz trise, tfall (10/90% rf) ton, toff (50% ctl to 10/90% rf) 50 120 ns ns
switches - smt 10 10 - 239 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 HMC349LP4C / 349lp4ce high isolation spdt non-reflective switch, dc - 4 ghz v02.1205 return loss insertion loss isolation between ports rfc and rf1 / rf2 0.1 and 1 db input compression point isolation between ports rf1 and rf2 -5 -4 -3 -2 -1 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 +25c +85c -40c insertion loss (db) frequency (ghz) -80 -70 -60 -50 -40 -30 -20 -10 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 rf1 rf2 all off isolation (db) frequency (ghz) -80 -70 -60 -50 -40 -30 -20 -10 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 rfc-rf1 on rfc-rf2 on isolation (db) frequency (ghz) 20 22 24 26 28 30 32 34 01234 0.1 db compression point 1 db compression point input compression (dbm) frequency (ghz) -30 -25 -20 -15 -10 -5 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 rfc rf1, rf2 on rf1, rf2 off return loss (db) frequency (ghz) input third order intercept point 40 44 48 52 56 60 01234 +25c +85c -40c ip3 (dbm) frequency (ghz) note: rfc is re ective in all off state.
switches - smt 10 10 - 240 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 absolute maximum ratings control input signal path state vctl en rfc - rf1 rfc - rf2 low low off on high low on off low high off off high high off off ttl/cmos control voltages state bias condition low 0 to +0.8 vdc @ <1 a typical high +2.0 to +5.0 vdc @ 30 a typical rf input power (vctl = 0v/+5v) (0.25 - 4 ghz) +30 dbm (t = +85 c) supply voltage range (vdd) +7 vdc control voltage range (vctl) -1v to vdd +1v hot switch power level (vdd = +5v) +30 dbm channel temperature 150 c continuous pdiss (t = 85 c) (derate 12 mw/c above 85 c) 0.75 w thermal resistance 87 c/w storage temperature -65 to +150 c operating temperature -40 to +85 c esd sensitivity (hbm) class 1a note: dc blocking capacitors are required at ports rfc, rf1 and rf2. their value will determine the lowest transmission frequency. vdd range = +5.0 vdc 10% vdd (vdc) idd (typ.) (ma) idd (max.) (ma) +5.0 2.3 5.0 bias voltage & current electrostatic sensitive device observe handling precautions HMC349LP4C / 349lp4ce high isolation spdt non-reflective switch, dc - 4 ghz v02.1205
switches - smt 10 10 - 241 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 outline drawing part number package body material lead finish msl rating package marking [3] HMC349LP4C low stress injection molded plastic sn/pb solder msl1 [1] h349 xxxx HMC349LP4Ce rohs-compliant low stress injection molded plastic 100% matte sn msl1 [2] h349 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 HMC349LP4C / 349lp4ce high isolation spdt non-reflective switch, dc - 4 ghz v02.1205 notes: 1. leadframe material: copper alloy 2. dimensions are in inches [millimeters] 3. lead spacing tolerance is non-cumulative. 4. pad burr length shall be 0.15mm maximum. pad burr height shall be 0.05mm maximum. 5. package warp shall not exceed 0.05mm. 6. all ground leads and ground paddle must be soldered to pcb rf ground. 7. refer to hittite application note for suggested land pattern.
switches - smt 10 10 - 242 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 pin number function description interface schematic 1vdd supply voltage. 2 vctl control input. see truth and control voltage tables. 3, 9, 12 rfc, rf1, rf2 these pins are dc coupled and matched to 50 ohms. blocking capacitors are required. 4, 6, 7, 8, 13, 14, 15, 16 n/c no connection. these pins may be connected to rf ground. performance will not be affected. 5 en enable. see truth and control voltage tables. 10, 11 gnd package bottom must also be connected to pcb rf ground. HMC349LP4C / 349lp4ce high isolation spdt non-reflective switch, dc - 4 ghz v02.1205
switches - smt 10 10 - 243 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 and backside ground slug 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 106975 [1] item description j1 - j3 pc mount sma rf connector j4 - j8 dc pin c1 - c3 100 pf capacitor, 0402 pkg. u1 HMC349LP4C / HMC349LP4Ce spdt switch pcb [2] 106965 evaluation pcb [1] reference this number when ordering complete evaluation pcb [2] circuit board material: rogers 4350 HMC349LP4C / 349lp4ce high isolation spdt non-reflective switch, dc - 4 ghz v02.1205
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