switches - smt 10 10 - 256 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 HMC427LP3 / 427lp3e gaas mmic positive control transfer switch, dc* - 8 ghz v07.0805 general description features functional diagram the HMC427LP3 & HMC427LP3e are low loss broadband positive control transfer switches in leadless surface mount packages. covering dc to 8 ghz, this switch offers high isolation and low insertion loss. the switch operates using a positive control voltage of 0/+5v and requires a fi xed bias of +5v @ < 20 a. high isolation: 40 ~ 45 db thru 6 ghz low insertion loss: 1.2 db@ 6 ghz non-refl ective design 3 x 3 mm smt package electrical specifi cations, t a = +25 c, with 0/+5v control, 50 ohm system typical applications the HMC427LP3 / HMC427LP3e is ideal for: ? test instrumentation ? fiber optics & broadband telecom ? basestation infrastructure ? microwave radio & vsat ? military radios, radar, & ecm * blocking capacitors are required at ports rf1, 2, 3, & 4. their value will determine the lowest transmission fre- quency. parameter frequency min. typ. max. units insertion loss dc - 6.0 ghz dc - 8.0 ghz 1.2 1.6 1.6 2.1 db db isolation dc - 1.0 ghz dc - 2.0 ghz dc - 6.0 ghz dc - 8.0 ghz 42 37 33 27 48 42 38 32 db db db db return loss dc - 6.0 ghz dc - 8.0 ghz 17 15 db db input power for 1 db compression 1.0 - 8.0 ghz 23 26 dbm input third order intercept (two-tone input power= +7 dbm each tone, 1 mhz tone separation) 1.0 - 8.0 ghz 37 43 dbm switching characteristics trise, tfall (10/90% rf) ton, toff (50% ctl to 10/90% rf) dc - 8.0 ghz 2 4 ns ns
switches - smt 10 10 - 257 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 0.1 and 1 db input compression point insertion loss vs. temperature isolation -5 -4 -3 -2 -1 0 0123456789 +25 c +85 c -40 c insertion loss (db) frequency (ghz) -60 -50 -40 -30 -20 -10 0 0123456789 rf4 to rf1 rf2 to rf3 rf4 to rf2 rf1 to rf3 isolation (db) frequency (ghz) -30 -25 -20 -15 -10 -5 0 0123456789 rf1 rf2 rf3 rf4 return loss (db) frequency (ghz) 10 12 14 16 18 20 22 24 26 28 30 123456789 1 db compression point 0.1 db compression point input compression point (dbm) frequency (ghz) 20 25 30 35 40 45 50 123456789 +25 c +85 c -40 c input third order intercept point (dbm) frequency (ghz) input third order intercept point HMC427LP3 / 427lp3e gaas mmic positive control transfer switch, dc* - 8 ghz v07.0805
switches - smt 10 10 - 258 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 bias voltage & current vdd range = +5.0 vdc 10 % vdd (vdc) idd (typ.) (a) idd (max.) (a) +5.0 5 10 state bias condition low 0 to +0.2 vdc @ 5 a typical high vdd 0.2 vdc @ 5 a typical control input signal path state ab rf4 to rf2 rf1 to rf3 rf4 to rf1 rf2 to rf3 low high on on off off high low off off on on absolute maximum ratings 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 130 c/w storage temperature -65 to +150 c operating temperature -40 to +85 c maximum input power +27 dbm esd sensitivity (hbm) class 1a note: dc blocking capacitors are required at ports rf1, 2, 3, & 4. their value will determine the lowest transmission fre- quency. electrostatic sensitive device observe handling precautions HMC427LP3 / 427lp3e gaas mmic positive control transfer switch, dc* - 8 ghz v07.0805
switches - smt 10 10 - 259 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 HMC427LP3 / 427lp3e gaas mmic positive control transfer switch, dc* - 8 ghz v07.0805 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] HMC427LP3 low stress injection molded plastic sn/pb solder msl1 [1] 427 xxxx HMC427LP3e rohs-compliant low stress injection molded plastic 100% matte sn msl1 [2] 427 xxxx [1] max peak refl ow temperature of 235 c [2] max peak refl ow temperature of 260 c [3] 4-digit lot number xxxx package information
switches - smt 10 10 - 260 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 1, 4, 9, 12 rf4, rf1, rf3, rf2 this pin is dc coupled and matched to 50 ohm. blocking capacitors are required. 2, 3, 5, 8, 10, 11, 13, 14, 16 n/c this pin should be connected to pcb rf ground to maximize isolation. gnd package bottom has exposed metal paddle that must be connected to pcb rf ground. 6 ctrla see truth table and control voltage table. 7 ctrlb see truth table and control voltage table. 15 vdd supply voltage +5v 10%. HMC427LP3 / 427lp3e gaas mmic positive control transfer switch, dc* - 8 ghz v07.0805
switches - smt 10 10 - 261 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 fi 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. item description j1 - j4 pcb mount sma rf connector j5 - j8 dc pin c1 1000 pf capacitor, 0603 pkg. c2 - c5 100 pf capacitor, 0402 pkg. r1 - r2 100 ohm resistor, 0603 pkg. u1 HMC427LP3 / HMC427LP3e transfer switch pcb [2] 105674 evaluation pcb [1] reference this number when ordering complete evaluation pcb [2] circuit board material: rogers 4350 HMC427LP3 / 427lp3e gaas mmic positive control transfer switch, dc* - 8 ghz v07.0805 list of materials for evaluation pcb 105672 [1]
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