at tenu a tors - s m t 1 hmc939lp4 / 939lp4e v 01.1211 1.0 db lsb gaas mmic 5-bit digital attenuator, 0.1 - 33 ghz electrical specifcations, t a = +25 c, with vdd = +5v, vss = -5v, p0 - p4 = 0/ +5v t he hmc939lp4 / hmc939lp4 e is ideal for: ? fiber optics & broadband telecom ? microwave radio & vsat ? military radios, radar & ecm ? space applications ? sensors ? test & measurement equipment 1.0 db lsb steps to 31 db single positive control line per bit 1.0 db typical bit error high input ip3: +43 dbm 16mm 2 leadless smt plastic package t he hmc939lp4 & HMC939LP4E are broadband 5-bit gaas ic digital attenuators in low cost leadless surface mount packages. covering 0.1 to 33.0 ghz, the insertion loss is less than 5 db typical. the attenu - ator bit values are 1.0 (lsb), 2, 4, 8, 16 for a total atten - uation of 31 db. attenuation accuracy is excellent at 0.4 db typical step error with an iip3 of +43 dbm. five control voltage inputs, toggled between +5v and 0v, are used to select each attenuation state. parameter frequency (ghz) min. typ. max. units insertion loss 0.1 - 18.0 ghz 18.0 - 26.5 ghz 26.5 - 33.0 ghz 4.0 5.5 6.5 5.5 7.0 8.5 db db db attenuation range 0.1 - 33.0 ghz 31 db return loss (rf1 & rf2, all atten. states) 0.1 - 33.0 ghz 12 db attenuation accuracy: (referenced to insertion loss) 1.0 - 15 db states 16 - 31 db states 16 - 31 db states 0.1 - 33.0 ghz 0.1 - 20.0 ghz 20.0 - 33.0 ghz (0.5 + 5%) of atten. setting max (0.5 + 5%) of atten. setting max (0.6 + 8%) of atten. setting max db db db input power for 0.1 db compression 0.1 - 0.5 ghz 0.5 - 33.0 ghz 20 25 dbm dbm input third order intercept point (two-tone input power= 0 dbm each tone) 0.1 - 0.5 ghz 0.5 - 33.0 ghz 40 43 dbm dbm switching characteristics trise, tfall (10/90% rf) ton/toff (50% ctl to 10/90% rf) 0.1 - 33.0 ghz 60 90 ns ns idd 0.1 - 33.0 ghz 2.5 4.5 6.5 ma iss 0.1 - 33.0 ghz -7.0 -5.0 -3.0 ma general description features functional diagram typical applications for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com
at tenu a tors - s m t 2 hmc939lp4 / 939lp4e v 01.1211 1.0 db lsb gaas mmic 5-bit digital attenuator, 0.1 - 33 ghz input return loss (only major states are shown) output return loss (only major states are shown) insertion loss vs. temperature normalized attenuation (only major states are shown) bit error vs. frequency (only major states are shown) bit error vs. attenuation state -12 -10 -8 -6 -4 -2 0 0 5 10 15 20 25 30 35 40 +25 c +85 c -40 c insertion loss (db) frequency (ghz) -50 -40 -30 -20 -10 0 0 5 10 15 20 25 30 35 40 return loss (db) frequency (ghz) -50 -40 -30 -20 -10 0 0 5 10 15 20 25 30 35 40 return loss (db) frequency (ghz) -40 -35 -30 -25 -20 -15 -10 -5 0 0 5 10 15 20 25 30 35 40 normalized attenuation (db) frequency (ghz) -0.8 -0.4 0 0.4 0.8 1.2 1.6 2 2.4 0 4 8 12 16 20 24 28 5 ghz 10 ghz 18 ghz 26.5 ghz 33 ghz bit error (db) attenuation state (db) -3 -2 -1 0 1 2 3 0 5 10 15 20 25 30 35 40 bit error (db) frequency (ghz) 31 db for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com
at tenu a tors - s m t 3 hmc939lp4 / 939lp4e v 01.1211 1.0 db lsb gaas mmic 5-bit digital attenuator, 0.1 - 33 ghz 20 30 40 50 60 0.01 0.1 1 10 100 ip3 (dbm) frequency (ghz) relative phase vs. frequency (only major states are shown) step attenuation vs. attenuation state 0.1 - 18 ghz input ip3 vs. temperature (minimum attenuation state) input ip3 over major attenuation states input power for 0.1 db compression -20 0 20 40 60 80 100 120 0 5 10 15 20 25 30 35 40 relative phase (deg) frequency (ghz) 31 db 0 0.4 0.8 1.2 1.6 0 4 8 12 16 20 24 28 32 5 ghz 10 ghz 18 ghz step attenuation (db) attenuation state (db) 20 30 40 50 60 0.01 0.1 1 10 100 +25 c +85 c -40 c ip3 (dbm) frequency (ghz) 6 10 14 18 22 26 30 0.01 0.1 1 10 100 +25 c +85 c -40 c p0.1db (dbm) frequency (ghz) step attenuation vs. attenuation state 18 - 33 ghz -0.4 0 0.4 0.8 1.2 1.6 0 4 8 12 16 20 24 28 32 26.5 ghz 33 ghz step attenuation (db) attenuation state (db) for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com
at tenu a tors - s m t 4 hmc939lp4 / 939lp4e v 01.1211 1.0 db lsb gaas mmic 5-bit digital attenuator, 0.1 - 33 ghz control voltage bias voltages & currents absolute maximum ratings state bias condition low 0 to 0.8v @ 1 a high 2 to 5v @ 1 a vdd +5v @ 4.5 ma vss -5v @ 5 ma rf input power (0.1 to 33.0 ghz) +25 dbm control voltage (p0 to p4) vdd + 0.5v vdd +7 vdc vss -7 vdc channel temperature 150 c continuous pdiss (t = 85 o c) (derate 6.8 mw/ o c above 85 o c) 0.451 w thermal resistance 144 c/w storage temperature -65 to + 150 c operating temperature -40 to +85 c esd sensitivity (hbm) class 1a electrostatic sensitive device observe handling precautions outline drawing 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 la n d pa t tern . part number package body material lead finish msl rating package marking [3] hmc939lp4 low stress injection molded plastic sn/pb solder m s l1 [1] h939 xxxx hmc939lp4 e rohs-compliant low stress injection molded plastic 100% matte sn m s l1 [2] h939 xxxx [1] max peak refow temperature of 235 c [2] max peak refow temperature of 260 c [3] 4-digit lot number xxxx package information for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com
at tenu a tors - s m t 5 hmc939lp4 / 939lp4e v 01.1211 1.0 db lsb gaas mmic 5-bit digital attenuator, 0.1 - 33 ghz pad number function description interface schematic 1 vss negative bias -5v 2-4, 6-13, 15-17, 19 n /c the pins are not connected internally; however, all data shown herein was measured with these pins connected to rf/dc ground externally. 5, 14 rf1, rf2 these pins are dc coupled and matched to 50 ohm. blocking capacitors are required if rf line potential is not equal to 0v. 18 vdd positive bias +5v 20 - 24 p0 - p4 see truth table and control voltage table. gnd package bottom must be connected to rf/dc ground. pin descriptions truth table control voltage input attenuation state rf1 - rf2 p4 16 db p3 8 db p2 4 db p1 2 db p0 1 db high high high high high reference i.l. high high high high low 1 db high high high low high 2 db high high low high high 4 db high low high high high 8 db low high high high high 16 db low low low low low 31 db any combination of the above states will provide an attenuation approximately equal to the sum of the bits selected. for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com
at tenu a tors - s m t 6 hmc939lp4 / 939lp4e v 01.1211 1.0 db lsb gaas mmic 5-bit digital attenuator, 0.1 - 33 ghz application circuit for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com
at tenu a tors - s m t 7 hmc939lp4 / 939lp4e v 01.1211 1.0 db lsb gaas mmic 5-bit digital attenuator, 0.1 - 33 ghz evaluation pcb list of materials for evaluation pcb 130450 [1] item description j1, j2, j4, j5 2.9 mm pc mount rf connector j3 dc connector c1, c2 1000 pf capacitor, 0402 pkg. u 1 hmc939lp4 digital attenuator pcb [2] 131909 evaluation board [1] reference this number when ordering complete evaluation pcb [2] circuit board material: rogers 4350 the circuit board used in the application should use rf circuit design techniques. signal lines should have 50 ohm impedance while the package ground leads should be connected directly to the ground plane similar to that shown. a sufficient number of via holes should be used to connect the top and bottom ground planes. the evaluation circuit board shown is available from hittite upon request. for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com
at tenu a tors - s m t 8 hmc939lp4 / 939lp4e v 01.1211 1.0 db lsb gaas mmic 5-bit digital attenuator, 0.1 - 33 ghz notes: for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com
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