microwave corporation 14 - 150 for price, delivery, and to place orders, please contact hittite microwave corporation: 12 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order online at www.hittite.com switches - smt 14 HMC276QS24 gaas mmic 4x2 switch matrix, 0.7 - 3.0 ghz v04.0701 general description features functional diagram the HMC276QS24 is a low-cost 4x2 switch matrix in a 24-lead qsop package for use in rf multiplex- ing applications from 700 to 3000 mhz. a positive voltage controlled 4 bit decoder is integrated on the switch. the switch may be used in either 75 ohm or 50 ohm systems. both switch outputs (op1 & op2) can independently select any of the four inputs (hh, hl, vh, vl) or simultaneously select the same inputs. note that the switch is bi-directional and input/output function- ality may be interchanged. the recommended load- ing impedance is 62.5 ohms on each input (hh, hl, vh, vl) and 75 ohms on each output (op1 & op2). all data presented was measured in a 50 ohm (input/output) system. 4x2 switch matrix using one ic 4x4 switch matrix using two ics integrated 4 bit decoder single positive supply: vdd = +5v electrical speci cations, t a = +25?c, vdd= +5v, 50 ohm system typical applications 4x2 switch matrix for 0.7 - 3.0 ghz applications: ? cable modem ? catv ? cellular systems ? dbs parameter frequency min. typ. max. units insertion loss 700 - 3000 mhz 6.0 7.0 db isolation 700 - 950 mhz 950 - 1450 mhz 1450 - 2150 mhz 2150 - 3000 mhz 34 29 25 38 33 30 db db db db return loss (input; vl, hl, vh, hh) 700 - 3000 mhz 10 15 db return loss (output; op1, op2) 700 - 3000 mhz 9 14 db output ip3 700 - 3000 mhz 31 37 dbm input power for 1 db compression 700 - 3000 mhz 22 26 dbm switching speed trise / tfall (10/90% rf) ton / toff (50% ctl to 10/90% rf) 700 - 3000 mhz 140 350 ns ns see op1/2 isolation tables
microwave corporation 14 - 151 for price, delivery, and to place orders, please contact hittite microwave corporation: 12 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order online at www.hittite.com 14 switches - smt -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 0.5 1 1.5 2 2.5 3 3.5 4 vl to op1 (state 1) vl to op1 (state 2) vh to op1 (state 5) vh to op1 (state 6) hl to op1 (state 11) hl to op1 (state 12) hh to op1 (state 15) hh to op1 (state 16) insertion loss (db) frequency (ghz) -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 0.5 1 1.5 2 2.5 3 3.5 4 vl to op2 (state 1) vl to op2 (state 5) vh to op2 (state 2) vh to op2 (state 6) hl to op2 (state 11) hl to op2 (state 15) hh to op2 (state 12) hh to op2 (state 16) insertion loss (db) frequency (ghz) -25 -20 -15 -10 -5 0 0.5 1 1.5 2 2.5 3 3.5 4 input rl, input selected input rl, input deselected output rl return loss (db) frequency (ghz) -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 0.5 1 1.5 2 2.5 3 3.5 4 +25c +85c -40c insertion loss (db) frequency (ghz) gaas mmic sub-harmonically pumped mixer 17 - 25 ghz HMC276QS24 return loss typical insertion loss vs. temperature gaas mmic 4x2 switch matrix, 0.7 - 3.0 ghz v04.0701 insertion loss on op1 insertion loss on op2 op1 isolation 950 - 1450 mhz op2 isolation 950 - 1450 mhz input to output state interfering signal state min. (db) ty p. (db) hl to op1 vl to op1 vl to op1 all other states 9 11 all other states 34 36 40 36 38 >43 vl to op1 vh to op1 all other states 2 all other states 37 40 40 >43 vh to op1 vl to op1 vl to op1 all other states 5 6 all other states 35 37 40 37 40 >42 hh to op1 vl to op1 vl to op1 hl to op1 13 16 15 35 36 39 37 38 41 input to output state interfering signal state min. (db) ty p. (db) hl to op2 hh to op1 all other states 15 all other states 38 40 40 >43 vh to op2 hl to op2 hl to op2 all other states 10 6 all other states 34 36 37 37 38 >40 vl to op2 hl to op2 hl to op2 all other states 9 1 all other states 34 36 40 36 38 >42 hh to op2 all other states 12 16 all other states 35 38 40 37 40 >42
microwave corporation 14 - 152 for price, delivery, and to place orders, please contact hittite microwave corporation: 12 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order online at www.hittite.com switches - smt 14 HMC276QS24 gaas mmic 4x2 switch matrix, 0.7 - 3.0 ghz v04.0701 -60 -50 -40 -30 -20 -10 0 0.5 1 1.5 2 2.5 3 3.5 4 hh to op1 (state 11) hh to op1 (state 12) vh to op1 (state 10) vl to op1 (state 11) vl to op1 (state 9) vh to op1 (state 11) isolation (db) frequency (ghz) -60 -50 -40 -30 -20 -10 0 0.5 1 1.5 2 2.5 3 3.5 4 hh to op1 (state 8) hl to op1 (state 6) hl to op1 (state 7) vl to op1 (state 6) vl to op1 (state 5) hh to op1 (state 6) isolation (db) frequency (ghz) -60 -50 -40 -30 -20 -10 0 0.5 1 1.5 2 2.5 3 3.5 4 hl to op1 (state 3) vh to op1 (state 2) hh to op1 (state 1) hh to op1 (state 4) vh to op1 (state 1) hl to op1 (state 1) isolation (db) frequency (ghz) -60 -50 -40 -30 -20 -10 0 0.5 1 1.5 2 2.5 3 3.5 4 vl to op1 (state 16) vh to op1 (state 16) vl to op1 (state 13) vh to op1 (state 14) hl to op1 (state 16) hl to op1 (state 15) isolation (db) frequency (ghz) -60 -50 -40 -30 -20 -10 0 0.5 1 1.5 2 2.5 3 3.5 4 hh to op2 (state 11) hh to op2 (state 15) vh to op2 (state7) vh to op2 (state 11) vl to op2 (state 11) vl to op2 (state 3) isolation (db) frequency (ghz) -60 -50 -40 -30 -20 -10 0 0.5 1 1.5 2 2.5 3 3.5 4 vh to op2 (state 1) vh to op2 (state 5) hh to op2 (state 1) hh to op2 (state 13) hl to op2 (state 1) hl to op2 (state 9) isolation (db) frequency (ghz) * isolation is recorded above insertion loss & measured at output of switch. isolation when vl is connected to op1* isolation when hh is connected to op1* isolation when hl is connected to op1* isolation when vh is connected to op1* isolation when hl is connected to op2* isolation when vl is connected to op2*
microwave corporation 14 - 153 for price, delivery, and to place orders, please contact hittite microwave corporation: 12 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order online at www.hittite.com 14 switches - smt HMC276QS24 gaas mmic 4x2 switch matrix, 0.7 - 3.0 ghz v04.0701 -60 -50 -40 -30 -20 -10 0 0.5 1 1.5 2 2.5 3 3.5 4 hh to op2 (state 14) hl to op2 (state 6) vl to op2 (state 2) vl to op2 (state 6) hh to op2 (state 6) hl to op2 (state 10) isolation (db) frequency (ghz) -60 -50 -40 -30 -20 -10 0 0.5 1 1.5 2 2.5 3 3.5 4 hl to op2 (state 12) hl to op2 (state 16) vh to op2 (state 8) vh to op2 (state 16) vl to op2 (state 16) vl to op2 (state 4) isolation (db) frequency (ghz) isolation when vh is connected to op2* isolation when hh is connected to op2* output third order intercept point * isolation is recorded above insertion loss & measured at output of switch. path state f1 pout (dbm) pout intermod (dbm) imr (dbc) output ip3 (dbm) vl to op1 1 -12 -106 94 35 vl to op2 1 -12 -114 102 39 hl to op1 11 -12 -108 96 36 hl to op2 11 -12 -110 98 37 vh to op1 6 -12 -115 103 39.5 vh to op2 6 -12 -115 103 39.5 hh to op1 16 -12 -116 104 40 hh to op2 16 -12 -114 102 39 test conditions temperature = +25 c f1 = 2150 (mhz): -12 dbm at the output f2 = 2151 (mhz): -12 dbm at the output vdd = +5v vctl low = 0v, high = +5v
microwave corporation 14 - 154 for price, delivery, and to place orders, please contact hittite microwave corporation: 12 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order online at www.hittite.com switches - smt 14 dc blocking and decoupling capacitors the HMC276QS24 requires dc blocks on all 6 rf ports (op1, op2, vl, hl, vh, hh). characterization on the HMC276QS24 was done using 0603 size 330pf capacitors on all rf ports. a 0.01 f dc decoupling capacitor (0603 size) is recommended for the vdd pin. HMC276QS24 gaas mmic 4x2 switch matrix, 0.7 - 3.0 ghz v04.0701 truth table control input output to input state rf path state state hv 1 tone 1 hv 2 tone 2 op1 op2 vl to op1 hl to op1 vh to op1 hh to op1 vl to op2 hl to op2 vh to op2 hh to op2 1 0 0 0 0 vl vl loss isol isol isol loss isol isol isol 2 0 0 0 1 vl vh loss isol isol isol isol isol loss isol 3 0 0 1 0 vl hl loss isol isol isol isol loss isol isol 4 0 0 1 1 vl hh loss isol isol isol isol isol isol loss 5 0 1 0 0 vh vl isol isol loss isol loss isol isol isol 6 0 1 0 1 vh vh isol isol loss isol isol isol loss isol 7 0 1 1 0 vh hl isol isol loss isol isol loss isol isol 8 0 1 1 1 vh hh isol isol loss isol isol isol isol loss 9 1 0 0 0 hl vl isol loss isol isol loss isol isol isol 10 1 0 0 1 hl vh isol loss isol isol isol isol loss isol 11 1 0 1 0 hl hl isol loss isol isol isol loss isol isol 12 1 0 1 1 hl hh isol loss isol isol isol isol isol loss 13 1 1 0 0 hh vl isol isol isol loss loss isol isol isol 14 1 1 0 1 hh vh isol isol isol loss isol isol loss isol 15 1 1 1 0 hh hl isol isol isol loss isol loss isol isol 16 1 1 1 1 hh hh isol isol isol loss isol isol isol loss control voltages hv1, tone1, hv2, tone2 bias voltage vdd range = +5.0 vdc 10 % vdd (vdc) idd (typ.) (ma) idd (max.) (ma) +5.0 1 2 state bias condition low (0) 0 to 0.8 vdc @ 5 a typical high (1) +2.0 to +5.0 vdc @ 25 a typical
microwave corporation 14 - 155 for price, delivery, and to place orders, please contact hittite microwave corporation: 12 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order online at www.hittite.com 14 switches - smt HMC276QS24 gaas mmic 4x2 switch matrix, 0.7 - 3.0 ghz v04.0701 absolute maximum ratings outline drawing bias voltage range (vdd) +8.0 vdc control voltage range (all logic lines) vdd +0.5 to -0.2v vdc storage temperature -65 to +150 c operating temperature -40 to +85 c maximum input power +17 dbm (700 - 2150 mhz) notes: 1. package body material: low stress injection molded plastic silica and silicon impregnated. 2. leadframe material: copper alloy 3. leadframe plating: sn/pb solder 4. dimensions are in inches [millimeters]. 5. dimension does not include moldflash of 0.15mm per side. 6. dimension does not include moldflash of 0.25mm per side. 7. all ground leads must be soldered to pcb rf ground.
microwave corporation 14 - 156 for price, delivery, and to place orders, please contact hittite microwave corporation: 12 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order online at www.hittite.com switches - smt 14 HMC276QS24 gaas mmic 4x2 switch matrix, 0.7 - 3.0 ghz v04.0701 the HMC276QS24 switch can operate as a 4x4 switch by connecting the 4 inputs of two switches directly together. the vl, vh, hl, and hh inputs of the ? rst switch should be connected to the second switch, as illus- trated. mirror image switch performance can be realized by inverting the hv1 & hv2 logic control signals of one of the HMC276QS24 switches. the input loading impedance of two switches in parallel should be 31.25 ohms. the output loading impedance on each output should be 75 ohms. the interconnect rf line between the switch?s inputs should be an rf trace with a characteristic imped- ance of 62.5 ohms. this will allow the switch to remain matched in all possible switch states. the HMC276QS24 does not provide output to output (op1 to op2) isolation. for this reason,it is recommended that external ampli? ers should be used at each output. the ampli? er?s reverse isolation will provide output to output isolation, if this is necessary. each HMC276QS24 requires dc blocking capacitors on all rf input and output ports. switch application circuit for 4x4 switch matrix
microwave corporation 14 - 157 for price, delivery, and to place orders, please contact hittite microwave corporation: 12 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order online at www.hittite.com 14 switches - smt HMC276QS24 gaas mmic 4x2 switch matrix, 0.7 - 3.0 ghz v04.0701 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 should be connected directly to the ground plane similar to that shown above. a generous number of ground vias should be used to interconnect top/bottom ground planes. the evaluation circuit board shown above is available from hittite micro- wave corporation upon request. list of material j1 multi pin dc interface (j1) item description j2 - j7 pc mount sma rf connector j1 dc pin c1 - c6 100 pf capacitor, 0402 pkg. u1 HMC276QS24 4x2 switch matrix pcb* 102945 eval board * circuit board material: rogers 4350 pin line 1 vdd 2 hv1 3 gnd 4 hv2 5 gnd 6 tone1 7 n/c 8 n/c 9 tone2
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