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| CHT4660-QAG rohs compliant ref: dscht4660qag0211- 30 jul 2010 1/18 specificati ons subject to change without notice united monolithic semiconductors s.a.s. route dpartementale 128 - bp46 - 91401 orsay cedex france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 dc-16ghz attenuator gaas monolithic microwave ic in smd leadless packag e description the CHT4660-QAG is a dc-16ghz variable attenuator designed for a wide range of applications, from military to commercial communication systems. the circuit is manufactured with a mesfet process, 0.7m gate length, via holes through the substrate and air bridges. it is supplied in lead-free package. main features broadband performance: dc-16ghz 24dbm typical input 1db compression point (any attenuation) 30db dynamic range dc bias: -5v dc-16ghz attenuator CHT4660-QAG ref. : dscht4660qag0211- 30 jul 2010 3/18 specifica tions subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 absolute maximum ratings (1) tamb = +25c symbol parameter values unit v1 v1 control voltage -6v to +0.6v v v2 v2 control voltage -6v to +0.6v v pin rf input power 30 dbm ta operating temperature range (reference on ground paddle) -40 to +85 c tstg storage temperature range -55 to +155 c (1) operation of this device above anyone of these parameters may cause permanent damage. typical biasing conditions tamb = +25c symbol pin no. parameter values unit v1 6 v1 control voltage -5 to 0 v v2 7 v2 control voltage -5 to 0 v CHT4660-QAG dc-16ghz attenuator ref : dscht4660qag0211- 30 jul 2010 4/18 specificat ions subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 typical package sij parameters tamb = +25c, v1 = -5v & v2= -5v C minimum attenuat ion freq dbs11 phs11 dbs12 phs12 dbs21 phs21 dbs22 phs22 0.1 -37.1 -179.6 -0.3 -6.6 -0.1 -6.6 -38.2 -175.6 0.3 -29.5 -138.2 -0.4 -38.4 -0.2 -38.5 -30.4 -142.8 0.6 -23.6 -161.5 -0.5 -69.9 -0.3 -70.0 -24.9 -167.2 0.8 -20.9 165.7 -0.7 -101.2 -0.4 -101.3 -21.7 162.5 1.1 -19.4 132.7 -0.8 -132.2 -0.6 -132.3 -20.2 128.2 1.3 -18.5 97.0 -1.0 -163.1 -0.7 -163.3 -19.7 88.9 1.6 -18.3 59.1 -1.1 166.0 -0.8 165.9 -19.8 51.6 1.8 -18.1 21.7 -1.3 135.1 -0.9 135.1 -20.1 9.4 2.1 -17.6 -21.1 -1.5 104.4 -1.1 104.4 -20.1 -35.9 2.3 -17.3 -65.1 -1.8 74.5 -1.4 74.4 -20.9 -82.3 2.6 -17.4 -104.4 -1.9 44.5 -1.6 44.3 -21.9 -124.1 2.8 -17.2 -149.2 -2.1 15.8 -1.7 15.8 -24.3 -174.8 3.1 -18.2 170.3 -2.1 -13.4 -1.7 -13.5 -28.0 162.0 3.3 -20.2 136.6 -2.2 -42.8 -1.7 -42.9 -28.5 140.1 3.6 -24.0 111.5 -2.1 -72.4 -1.6 -72.4 -28.1 139.0 3.8 -30.3 127.1 -1.9 -101.7 -1.4 -101.8 -24.7 123.8 4.1 -24.8 136.4 -1.7 -132.6 -1.3 -132.8 -24.7 107.7 4.3 -21.7 109.3 -1.7 -164.0 -1.2 -164.1 -24.9 91.7 4.6 -21.2 76.0 -1.7 164.8 -1.2 164.7 -25.6 73.2 4.8 -22.0 53.0 -1.7 134.4 -1.2 134.2 -28.0 55.5 5.1 -23.0 17.5 -1.7 103.0 -1.2 103.0 -33.4 57.7 5.6 -37.2 -42.6 -1.8 41.3 -1.2 41.2 -25.2 88.6 6.1 -27.5 72.5 -1.9 -20.6 -1.3 -20.7 -18.7 41.6 6.6 -22.5 15.7 -2.1 -82.2 -1.4 -82.2 -16.6 -12.3 7.1 -21.8 -39.2 -2.2 -143.6 -1.5 -143.7 -17.1 -69.8 7.6 -25.3 -92.0 -2.2 154.7 -1.6 154.4 -19.5 -135.3 8.1 -34.5 -137.6 -2.3 92.8 -1.6 92.7 -22.5 140.9 8.6 -42.8 -79.4 -2.5 30.7 -1.7 30.6 -21.8 48.6 9.1 -39.7 54.8 -2.7 -31.3 -1.9 -31.3 -18.6 -15.6 9.6 -22.7 4.7 -2.9 -92.7 -2.1 -93.0 -16.2 -63.4 10.1 -16.6 -51.7 -3.0 -154.1 -2.2 -154.5 -14.5 -106 .9 10.6 -14.3 -111.0 -3.3 145.1 -2.4 144.8 -14.0 -154. 9 11.1 -14.8 -169.5 -3.3 84.9 -2.4 84.6 -15.6 151.2 11.6 -19.2 136.7 -3.3 23.1 -2.3 23.0 -20.6 80.3 12.1 -27.1 129.5 -3.3 -38.9 -2.3 -39.0 -24.2 -44.4 12.6 -22.9 119.9 -3.5 -100.6 -2.5 -100.9 -19.4 -136 .8 13.1 -20.5 51.1 -3.6 -161.7 -2.6 -161.9 -17.0 170.4 13.6 -19.1 -36.2 -3.7 137.0 -2.6 136.8 -16.2 131.9 14.1 -17.5 -119.3 -3.8 75.9 -2.6 75.9 -15.9 94.9 14.6 -17.2 169.7 -3.8 14.9 -2.7 14.4 -16.5 51.6 15.1 -18.1 109.2 -3.8 -46.3 -2.6 -46.8 -18.5 1.9 15.6 -17.8 54.7 -3.6 -107.1 -2.5 -108.4 -23.5 -51.3 16.1 -16.9 5.5 -3.6 -171.2 -2.5 -171.2 -31.2 -137.2 16.6 -15.2 -41.7 -4.0 127.1 -2.8 128.1 -26.1 98.4 17.1 -13.3 -87.4 -3.9 65.7 -2.5 66.7 -19.0 27.8 17.6 -12.5 -129.1 -4.0 2.7 -2.7 2.5 -14.7 -44.0 18.1 -12.2 -172.3 -4.0 -58.9 -2.7 -59.1 -12.6 -111. 5 18.6 -13.1 140.3 -4.1 -121.3 -2.8 -121.3 -13.1 -171 .5 19.1 -17.0 85.1 -4.1 176.6 -2.7 176.9 -17.2 141.7 19.6 -28.5 -0.5 -4.1 113.2 -2.6 113.8 -22.7 138.9 dc-16ghz attenuator CHT4660-QAG ref. : dscht4660qag0211- 30 jul 2010 5/18 specifica tions subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 tamb = +25c, v1 = 0v & v2= 0v C maximum attenuatio n freq dbs11 phs11 dbs12 phs12 dbs21 phs21 dbs22 phs22 0.1 -1.7 174.2 -15.5 -7.7 -15.5 -8.1 -1.8 174.0 0.3 -2.0 145.2 -15.8 -44.7 -15.9 -44.8 -2.0 145.8 0.6 -2.3 117.1 -16.2 -80.5 -16.2 -80.6 -2.2 118.2 0.8 -2.5 89.6 -16.6 -115.4 -16.7 -115.5 -2.4 90.8 1.1 -2.9 61.6 -17.1 -150.0 -17.1 -150.1 -2.7 63.4 1.3 -3.2 33.8 -17.6 175.9 -17.6 175.9 -3.0 35.9 1.6 -3.6 6.2 -18.2 142.1 -18.2 142.0 -3.2 8.4 1.8 -4.0 -21.4 -18.7 108.0 -18.7 108.0 -3.5 -19.0 2.1 -4.3 -49.0 -19.3 74.4 -19.3 74.6 -3.7 -46.3 2.3 -4.7 -76.0 -20.0 41.5 -20.1 41.1 -4.0 -73.6 2.6 -5.0 -102.6 -20.8 8.2 -20.8 7.6 -4.3 -100.8 2.8 -5.4 -128.6 -21.6 -24.2 -21.6 -23.9 -4.5 -127.6 3.1 -5.7 -153.9 -22.4 -55.4 -22.5 -55.4 -4.8 -154.3 3.3 -6.0 -179.0 -23.3 -87.0 -23.2 -87.3 -5.0 179.6 3.6 -6.3 157.0 -24.0 -117.9 -24.0 -117.4 -5.2 153.9 3.8 -6.5 133.0 -24.6 -147.2 -24.7 -147.3 -5.3 128.8 4.1 -6.8 109.3 -25.3 -177.3 -25.2 -178.1 -5.5 104.2 4.3 -7.1 86.3 -25.8 151.8 -25.7 151.8 -5.7 79.7 4.6 -7.3 63.0 -26.3 121.3 -26.3 121.4 -6.1 55.5 4.8 -7.6 40.0 -26.9 91.1 -26.9 90.8 -6.4 31.1 5.1 -8.0 17.0 -27.2 60.5 -27.2 60.6 -6.8 6.3 5.6 -8.7 -30.0 -28.1 -0.6 -28.2 -1.1 -7.6 -43.2 6.1 -9.4 -78.2 -28.9 -63.3 -29.0 -63.0 -8.7 -93.9 6.6 -10.2 -127.9 -29.8 -124.8 -29.7 -125.2 -10.0 -1 47.4 7.1 -10.7 179.9 -30.6 173.1 -30.6 173.0 -10.9 156.0 7.6 -10.8 126.9 -31.4 111.2 -31.4 111.5 -11.3 99.6 8.1 -10.5 75.1 -32.1 50.8 -32.1 50.4 -11.4 45.7 8.6 -10.0 25.0 -32.8 -9.2 -32.9 -9.5 -11.2 -4.6 9.1 -9.4 -22.4 -33.5 -67.1 -33.5 -67.7 -11.0 -50.3 9.6 -9.0 -67.8 -33.8 -124.2 -33.9 -124.8 -11.1 -92. 4 10.1 -8.9 -112.0 -34.0 177.8 -34.1 178.1 -11.6 -132 .1 10.6 -9.0 -156.4 -33.9 122.0 -33.9 121.9 -12.5 -170 .5 11.1 -9.5 157.9 -33.7 64.7 -33.7 64.2 -14.0 149.6 11.6 -10.2 109.7 -33.6 6.1 -33.6 6.3 -16.2 105.9 12.1 -10.9 58.1 -33.4 -51.2 -33.4 -51.7 -19.2 55.1 12.6 -11.3 3.2 -33.2 -110.3 -33.3 -110.0 -22.7 -9.6 13.1 -11.1 -52.2 -33.5 -167.4 -33.4 -167.5 -22.6 -9 0.2 13.6 -10.7 -105.6 -33.4 135.2 -33.4 135.0 -19.8 -15 1.4 14.1 -10.3 -157.2 -33.6 77.8 -33.7 77.4 -17.6 164.3 14.6 -10.1 153.0 -33.9 21.4 -34.0 20.7 -16.5 126.2 15.1 -9.9 102.7 -34.3 -37.9 -34.2 -37.8 -15.8 87.5 15.6 -9.8 51.9 -34.9 -88.1 -35.0 -90.3 -15.6 51.1 16.1 -9.3 2.1 -35.0 -143.6 -35.5 -142.2 -15.4 15.8 16.6 -8.6 -47.0 -35.2 161.5 -35.1 162.4 -15.2 -22.0 17.1 -8.1 -93.3 -35.5 106.0 -35.5 105.8 -15.0 -61.3 17.6 -7.8 -137.3 -35.7 50.2 -35.7 51.2 -14.1 -100.6 18.1 -8.1 179.8 -35.4 -5.0 -35.4 -5.7 -13.3 -140.2 18.6 -8.7 136.7 -35.4 -66.3 -35.5 -66.5 -12.9 -179. 6 19.1 -9.9 90.2 -36.1 -128.7 -36.1 -128.3 -13.6 140. 2 19.6 -11.3 35.4 -37.0 174.7 -37.1 174.5 -15.3 97.5 the sij measurement calibration planes are defined in the paragraph definition of the sij reference planes. CHT4660-QAG dc-16ghz attenuator ref : dscht4660qag0211- 30 jul 2010 6/18 specificat ions subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 typical measured performances tamb = +25c, measurements in the package access pl anes attenuation versus frequency (down to 50mhz) v1 = -5v to 0v & v2= -5v and after v1= 0v & v2 = -5 v to 0v a : v1 = -5v to 0v & v2= -5v b : v1= 0v & v2 = -5v to 0v a b dc-16ghz attenuator CHT4660-QAG ref. : dscht4660qag0211- 30 jul 2010 7/18 specifica tions subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 input return loss versus frequency in total attenua tion range output return loss versus frequency in total attenu ation range maximum attenuation minimum attenuation maximum attenuation minimum attenuation CHT4660-QAG dc-16ghz attenuator ref : dscht4660qag0211- 30 jul 2010 8/18 specificat ions subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 attenuation control with v2=-5v attenuation control with v1=0v 0.05ghz 4ghz 16ghz 0.05ghz 4ghz 16ghz dc-16ghz attenuator CHT4660-QAG ref. : dscht4660qag0211- 30 jul 2010 9/18 specifica tions subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 attenuation versus input power @ 0.7ghz v1 = -5v to 0v & v2= -5v and after v1= 0v & v2 = -5 v to 0v attenuation versus input power @ 4ghz v1 = -5v to 0v & v2= -5v and after v1= 0v & v2 = -5 v to 0v CHT4660-QAG dc-16ghz attenuator ref : dscht4660qag0211- 30 jul 2010 10/18 specifica tions subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 attenuation versus input power @ 16ghz v1 = -5v to 0v & v2= -5v and after v1= 0v & v2 = -5 v to 0v input ip3 versus input power v1 = -3.5v & v2= -5v (worst case area for the linea rity) 10 14 18 22 26 30 34 38 -5 -3 -1 1 3 5 7 9 double input power (dbm) input ip3 (dbm) 0.5ghz 4ghz 8ghz 12ghz 16ghz dc-16ghz attenuator CHT4660-QAG ref. : dscht4660qag0211- 30 jul 2010 11/18 specifications subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 c/i3 versus input power v1 = -3.5v & v2= -5v (worst case area for the linea rity) 30 34 38 42 46 50 54 58 62 66 70 -5 -3 -1 1 3 5 7 9 double input power (dbm) c/i3 (db) 0.5ghz 4ghz 8ghz 12ghz 16ghz CHT4660-QAG dc-16ghz attenuator ref : dscht4660qag0211- 30 jul 2010 12/18 specifica tions subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 typical measured performances in temperature measurements in the package access planes attenuation versus input power @ 0.7ghz attenuation versus input power @ 4ghz v1=v2=-5v v1=0v / v2=-5v v1=v2=0v v1=v2=-5v v1=v2=0v v1=0v / v2=-5v -40c +25c +85c -40c -40c +25c +85c +25c +85c -40c +25c +85c +85c dc-16ghz attenuator CHT4660-QAG ref. : dscht4660qag0211- 30 jul 2010 13/18 specifications subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 attenuation versus input power @ 16ghz input ip3 versus input power @ 0.5ghz 10 14 18 22 26 30 34 38 -5 -3 -1 1 3 5 7 9 double input power (dbm) input ip3 (dbm) -40c +25c +85c v1=v2=-5v v1=v2=0v v1=0v / v2=-5v -40c +25c +85c -40c +25c +85c -40c +25c +85c +85c CHT4660-QAG dc-16ghz attenuator ref : dscht4660qag0211- 30 jul 2010 14/18 specifica tions subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 input ip3 versus input power @ 16ghz 10 14 18 22 26 30 34 38 -5 -3 -1 1 3 5 7 9 double input power (dbm) input ip3 (dbm) -40c +25c +85c dc-16ghz attenuator CHT4660-QAG ref. : dscht4660qag0211- 30 jul 2010 15/18 specifications subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 package outline (1) matt tin, lead free (green) 1- gnd (2) 9- gnd (2) units mm 2- gnd (2) 10- rf out from the standard jedec mo-220 3- rf in 11- gnd (2) (veed) 4- gnd (2) 12- gnd (2) 17- gnd 5- nc 13- nc 6- v1 14- nc 7- v2 15- nc 8- nc 16- nc (1) the package outline drawing included to this data-s heet is given for indication. refer to the application note an0017 available at http://www.ums-gaas.com for exact package dimensions. (2) it is strongly recommended to ground the gnd pins o n the pcb board. t4660 CHT4660-QAG dc-16ghz attenuator ref : dscht4660qag0211- 30 jul 2010 16/18 specifica tions subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 definition of the sij reference planes the reference planes used for sij measurements give n above are symmetrical from the symmetrical axis of the package (see drawing beside). the input and output reference planes are located at 2.65mm offset (inpu t wise and output wise respectively) from this axis. then, the given sij parameters incorporate the land patte rn of the evaluation motherboard recommended at the page 18. recommended package footprint refer to the application note an0017 available at http://www.ums-gaas.com for package foot print recommendations. smd mounting procedure the smd leadless package has been designed for high volume surface mount pcb assembly process. the dimensions and footprint requ ired for the pcb (motherboard) are given in the drawings above. for the mounting process standard techniques involv ing solder paste and a suitable reflow process can be used. for further details, see appli cation note an0017. recommended esd management refer to the application note an0020 available at http://www.ums-gaas.com for esd sensitivity and handling recommendations for the um s package products. recommended environmental management refer to the application note an0019 available at http://www.ums-gaas.com for environmental data on ums package products. dc-16ghz attenuator CHT4660-QAG ref. : dscht4660qag0211- 30 jul 2010 17/18 specifications subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 packaged part biasing options to obtain good performances in linearity, biasing v oltage should be applied as following: - control of 1 st stage attenuation with v1 from C5v to 0v, with v2 fixed at -5v - control of 2 nd stage with v2 from C5v to 0v, with v1 fixed at 0v v1 v1v1 v1 v2 v2v2 v2 v1 v1v1 v1 v2 v2v2 v2 0v -5v attenuation min. max. voltage v1 v2 0v -5v attenuation min. max. voltage v1 v2 the rf ports are not dc blocked. there are no dc ca pacitors in the package. note this part could be also driven in single voltage co ntrol, applying the same voltage from -5v to 0v on v1 and v2, leading to lower linearity perf ormances. rf in rf out CHT4660-QAG dc-16ghz attenuator ref : dscht4660qag0211- 30 jul 2010 18/18 specifica tions subject to change without notice route dpartementale 128, bp46 - 91401 orsay cedex - france tel.: +33 (0) 1 69 33 03 08 - fax: +33 (0) 1 69 33 03 09 evaluation mother board compatible with the proposed footprint based on typically ro4003 / 8mils or equivalent using a microstrip to coplanar transition to acces s the package recommended for the implementation of this product on a module board decoupling capacitors of 10nf 10% are recommended for all dc accesses (see application note an0017 for details) ordering information qfn 3x3 rohs compliant package: CHT4660-QAG/xy stick: xy = 20 tape & reel: xy = 21 information furnished is believed to be accurate an d reliable. however united monolithic semiconductors s.a.s. assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. no license is granted by impli cation or otherwise under any patent or patent rights of united monolithic semiconductors s.a.s. . specifications mentioned in this publication are subject to change without notice. this publication supersedes and re places all information previously supplied. united monolithic semiconductors s.a.s. products are not authorised for use as critical components in life support devices or s ystems without express written approval from united monolithic semiconductors s.a.s. v1 v2 10nf 10% capacitors |
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