switches - smt 10 10 - 208 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 HMC345LP3 / 345lp3e gaas mmic sp4t non-reflective positive control switch, dc* - 8 ghz v04.0805 general description features functional diagram the HMC345LP3 & HMC345LP3e are broadband non-re ective gaas mesfet sp4t switches in low cost leadless surface mount packages. covering dc to 8 ghz, this switch offers high isolation and low insertion loss. this switch also includes an on board binary decoder circuit which reduces the required logic control lines to two. the switch operates using a positive control voltage of 0/+5v, and requires a xed bias of +5v. broadband performance: dc - 8 ghz high isolation: 35 db@ 6 ghz low insertion loss: 2.2 db@ 6 ghz integrated positive supply 2:4 ttl decoder 3 x 3 mm smt package electrical speci cations, t a = +25 c, with 0/+5v control, 50 ohm system typical applications this switch is suitable for usage in dc - 8.0 ghz 50- ohm or 75-ohm systems: ? broadband ? fiber optics ? switched filter banks ? wireless below 8 ghz * blocking capacitors are required at ports rfc and rf1, 2, 3, & 4. their value will determine the lowest transmission frequency. parameter frequency min. typ. max. units insertion loss dc - 2.0 ghz dc - 6.0 ghz dc - 8.0 ghz 2.0 2.2 2.4 2.4 2.6 2.9 db db db isolation dc - 2.0 ghz dc - 4.0 ghz dc - 6.0 ghz dc - 8.0 ghz 37 32 31 27 42 37 35 32 db db db db return loss on state dc - 2.0 ghz dc - 4.0 ghz dc - 6.0 ghz dc - 8.0 ghz 10 8 7 6 13 11 10 9 db db db db return loss (rf1 - rf4) off state 2.0 - 8.0 ghz 6 10 db input power for 1 db compression 2.0 - 8.0 ghz 17 21 dbm input third order intercept (two-tone input power = +7 dbm each tone, 1mhz tone separation) 2.0 - 8.0 ghz 37 45 dbm switching characteristics trise, tfall (10/90% rf) ton, toff (50% ctl to 10/90% rf) dc - 8.0 ghz 50 120 ns ns
switches - smt 10 10 - 209 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 vs. temperature isolation * isolation is recorded above insertion loss & measured at output of switch. HMC345LP3 / 345lp3e gaas mmic sp4t non-reflective positive control switch, dc* - 8 ghz v04.0805 -5 -4 -3 -2 -1 0 0123456789 +25 c -40 c +85 c insertion loss (db) frequency (ghz) 30 35 40 45 50 55 60 12345678 rf1 rf2 rf3 rf4 input third order intercept (dbm) frequency (ghz) 10 13 16 19 22 25 12345678 0.1db compression point 1.0db compression point input compression point (dbm) frequency (ghz) -25 -20 -15 -10 -5 0 0123456789 rfc rf1-rf4 on rf1-rf4 off return loss (db) frequency (ghz) -70 -60 -50 -40 -30 -20 -10 0 0123456789 rf1 rf2 rf3 rf4 isolation (db) frequency (ghz)
switches - smt 10 10 - 210 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 bias voltage & current control voltages absolute maximum ratings note: dc blocking capacitors are required at ports rfc and rf1, 2, 3, & 4. their value will determine the lowest transmission frequency. control input signal path state a b rfcom to: low low rf1 high low rf2 low high rf3 high high rf4 vdd range = +5.0 vdc 10% vdd (vdc) idd (typ.) (ma) idd (max.) (ma) +5.0 3.0 6.0 state bias condition low 0 to +0.8 vdc @ 5 ua typical high +2.0 to +5.0 vdc @ 60 ua typical bias voltage range (vdd) +7.0 vdc control voltage range (a & b) -0.5v to vdd +1.0 vdc channel temperature 150 c thermal resistance (insertion loss path) 143 c/ w thermal resistance (terminated path) 1030 c/w storage temperature -65 to +150 c operating temperature -40 to +85 c maximum input power +24 dbm esd sensitivity (hbm) class 1a electrostatic sensitive device observe handling precautions HMC345LP3 / 345lp3e gaas mmic sp4t non-reflective positive control switch, dc* - 8 ghz v04.0805
switches - smt 10 10 - 211 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 HMC345LP3 / 345lp3e gaas mmic sp4t non-reflective positive control switch, dc* - 8 ghz v04.0805 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. part number package body material lead finish msl rating package marking [3] HMC345LP3 low stress injection molded plastic sn/pb solder msl1 [1] 345 xxxx HMC345LP3e rohs-compliant low stress injection molded plastic 100% matte sn msl1 [2] 345 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 10 10 - 212 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 number function description interface schematic 1, 4, 9, 12, 15 rf4, rf3, rf2, rf1, rfc this pin is dc coupled and matched to 50 ohm. blocking capacitors are required. 2, 3, 10, 11, 13 n/c this pin should be connected to pcb rf ground to maximize isolation. 5, 14, 16 gnd package bottom has exposed metal paddle that must also be connected to pcb rf ground. 6 vdd supply voltage +5v 10% 7 ctlb see truth table and control voltage table. 8 ctla see truth table and control voltage table. pin descriptions HMC345LP3 / 345lp3e gaas mmic sp4t non-reflective positive control switch, dc* - 8 ghz v04.0805
switches - smt 10 10 - 213 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. item description j1 - j7 pcb mount sma rf connector j8 - j11 dc pin c1 - c7 100 pf capacitor, 0402 pkg. c8 10k pf capacitor, 0603 pkg. u1 HMC345LP3 / HMC345LP3e sp4t switch pcb [2] 104708 evaluation pcb 1.29x1.55 [1] reference this number when ordering complete evaluation pcb [2] circuit board material: rogers 4350 HMC345LP3 / 345lp3e gaas mmic sp4t non-reflective positive control switch, dc* - 8 ghz v04.0805 list of materials for evaluation pcb 108333 [1]
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