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tg a4541 - sm ka - band variable gain driver amplifier preliminary data sheet: rev - 0 5 / 0 8 /12 - 1 of 14 - disclaimer: subject to change without notice ? 2012 triquint semiconductor, inc. connecting the digital world to the global network ? applications ? vsat ? point - to - point radio ? test equipment & sensors qfn 6 x 6 mm 40 l product features functional block diagram ? frequency range: 28 C ? power: 23 dbm p1 db ? gain: 3 3 db ? output toi: 31 dbm ? attenuation range: 30 db ? bias: vd = 5 v, id = 33 0 ma, vg = - 0.7 v typical ? package dimensions: 6.0 x 6 .0 x 0.85 mm general description pin configuration the triquint tga4541 - sm is a variable gain amplifier to be used as a driver amplifier in linear ka band applications. the tga4541 - sm operates from 28 to 31 ghz and is designed using triquints phemt . the tga4541 - sm is available in a low - cost, surface mount 40 lead 6x6 qfn package and is ideally suited for vsat ground terminals a nd point - to - point radio applications. lead - free and rohs compliant. evaluation boards are available upon request. pin # symbol 1, 2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 17, 19, 20, 21, 22, 23, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 37, 39, 40 n/c 4 rf in 14 vg 16 vd2 18 vd3 24 rf out 35 vc 36 gnd 38 vd1 ordering information part no. eccn description tg a4541 - sm ear99 k a - band variable gain amp standard t/r size = 5 00 pieces on a 7 reel. 4541 1248 5342
tg a4541 - sm ka - band variable gain driver amplifier preliminary data sheet: rev - 0 5 / 0 8 /12 - 2 of 14 - disclaimer: subject to change without notice ? 2012 triquint semiconductor, inc. connecting the digital world to the global network ? specifications absolute maximum ratings parameter rating drain voltage,v d + 6 v drain current , i d 1 96 ma drain current, i d 2 +id3 672 ma power dissipation , pdiss 4.0 w rf input power, cw, 50,t = 25oc o c mounting temperature (30 seconds) 260 o c storage temperature - 40 to 15 0 o c operation of this device outside the parameter ranges given above may cause permanent damage. these are stress ratings only, and functional operation of the device at these conditions is not implied. recommended operating conditions parameter min typ ical max units v d 5 v i d 1 6 0 m a id2 +id3 27 0 m a vg - 0.7 v electrical specifications are measured at specified test conditions. specifications are not guaranteed over all recommended operating conditions. electrical specifications test conditions unless otherwise noted: 25 oc, vd = 5 v, id = 33 0 m a (id1 = 60 m a, id2 +id3 = 27 0 m a) , vc = - 1 .0 0 v, vg = - 0.7 v t ypical . id 2 +id3 are held constant throughout the test. parameter min typical max units operational frequency range 28 31 ghz gain 3 3 db attenuation range 30 db input return loss 1 8 db output return loss 1 7 db output power @ 1db gain compression (max gain) 2 3 dbm output toi 3 1 dbm gain temperature coefficient (max gain) - 0. 0 8 db/c power temperature coefficient (max gain) - 0.0 0 8 db /c
tg a4541 - sm ka - band variable gain driver amplifier preliminary data sheet: rev - 0 5 / 0 8 /12 - 3 of 14 - disclaimer: subject to change without notice ? 2012 triquint semiconductor, inc. connecting the digital world to the global network ? specifications (cont.) thermal and reliability information parameter condition rating thermal resistance, jc , measured to back of package tbase = 85 c jc = 34.5 c/w channel temp erature (tch), and median lifetime (tm) tbase = 85 c, vd = 5 v, id = 33 0 m a, pdiss = 1. 6 5 w tch = 142 c tm = 2 . 8 e+ 6 hours channel temperature ( tch ) , and median lifetime (tm) under rf drive tbase = 85 c, vd = 5 v, id = 330 m a, pout = 24 dbm , pdiss = 1.40 w tch = 13 3 c tm = 7. 9 e+ 6 hours 1 e+ 04 1 e+ 05 1 e+ 06 1 e+ 07 1 e+ 08 1 e+ 09 1 e+ 10 1 e+ 11 1 e+ 12 1 e+ 13 1 e+ 14 1 e+ 15 25 50 75 100 125 150 175 200 median lifetime, tm (hours) channel temperature, tch ( c) median lifetime (tm) vs. channel temperature (tch) fet 5
tg a4541 - sm ka - band variable gain driver amplifier preliminary data sheet: rev - 0 5 / 0 8 /12 - 4 of 14 - disclaimer: subject to change without notice ? 2012 triquint semiconductor, inc. connecting the digital world to the global network ? typical performance id2 +id3 are held constant throughout the test. - 80 - 75 - 70 - 65 - 60 - 55 - 50 - 45 - 40 - 35 - 30 14 16 18 20 22 24 26 28 im5 (dbc) pout/tone (dbm) im5 vs. pout/tone vs. frequency vd = 6 v, id = 1.3 a, vg = - 0.55 v typical, +25 0 c 12.7ghz 13.30ghz 14.4ghz 15.4ghz 0 5 10 15 20 25 30 35 40 45 28 28.5 29 29.5 30 30.5 31 gain (db) frequency (ghz) gain vs. frequency vd = 5 v, id = 330 ma, vc = - 1.00 v, vg = - 0.7 v, 25 c 0 5 10 15 20 25 30 28 28.5 29 29.5 30 30.5 31 return loss (db) frequency (ghz) irl, orl vs. frequency vd = 5 v, id = 330 ma, vc = - 1.00 v, vg = - 0.7 v, 25 c orl irl 18 19 20 21 22 23 24 25 26 28 28.5 29 29.5 30 30.5 31 output power (dbm) frequency (ghz) output power vs. frequency vd = 5 v, idq = 330 ma, vc = - 1.00 v, vg = - 0.7 v, 25 c psat p1db 100 200 300 400 500 600 0 10 20 30 40 50 - 32 - 28 - 24 - 20 - 16 - 12 - 8 - 4 0 id (ma) output power (dbm), gain (db) input power (dbm) power, gain, id vs. input power vd = 5 v, idq = 330 ma, vc = - 1.00 v, vg = - 0.7 v, 25 c pout gain id @ 29.5 ghz 0 5 10 15 20 25 30 35 40 28 28.5 29 29.5 30 30.5 31 otoi (dbm) frequency (ghz) otoi vs. frequency vd = 5 v, idq = 330 ma, vc = - 1.00 v, vg = - 0.7 v, 25 c 12 dbm pout/tone 0 5 10 15 20 25 30 35 40 28 28.5 29 29.5 30 30.5 31 otoi (dbm) frequency (ghz) otoi vs. frequency vs. pout/tone vd = 5 v, idq = 330 ma, vc = - 1.00 v, vg = - 0.7 v, 25 c 14 dbm pout/tone 12 dbm pout/tone 10 dbm pout/tone 8 dbm pout/tone 4 dbm pout/tone 0 dbm pout/tone
tg a4541 - sm ka - band variable gain driver amplifier preliminary data sheet: rev - 0 5 / 0 8 /12 - 5 of 14 - disclaimer: subject to change without notice ? 2012 triquint semiconductor, inc. connecting the digital world to the global network ? typical performance (cont.) id2 +id3 are held constant throughout the test. - 80 - 75 - 70 - 65 - 60 - 55 - 50 - 45 - 40 - 35 - 30 14 16 18 20 22 24 26 28 im5 (dbc) pout/tone (dbm) im5 vs. pout/tone vs. frequency vd = 6 v, id = 1.3 a, vg = - 0.55 v typical, +25 0 c 12.7ghz 13.30ghz 14.4ghz 15.4ghz 26 28 30 32 34 36 38 40 28 28.5 29 29.5 30 30.5 31 gain (db) frequency (ghz) gain vs. frequency vs. drain voltage id = 330 ma, vc = - 1.00 v, vg = - 0.7 v, 25 c 5.5 v 5.0 v 4.5 v 0 5 10 15 20 25 30 35 40 45 28 28.5 29 29.5 30 30.5 31 gain (db) frequency (ghz) gain vs. frequency vs. temperature vd = 5 v, id = 330 ma, vc = - 1.00 v, vg = - 0.7 v - 40 c 25 c 85 c 18 19 20 21 22 23 24 25 26 28 28.5 29 29.5 30 30.5 31 p1db (dbm) frequency (ghz) power vs. frequency vs. temperature vd = 5 v, idq = 330 ma, vc = - 1.00 v, vg = - 0.7 v - 40 c 25 c 85 c 20 22 24 26 28 30 32 34 36 38 28 28.5 29 29.5 30 30.5 31 otoi (dbm) frequency (ghz) otoi vs. frequency vs. temperature vd = 5 v, idq = 330 ma, vc = - 1.00 v, vg = - 0.7 v - 40 c 25 c 85 c 12 dbm pout/tone 0 5 10 15 20 25 30 35 40 45 - 1 - 0.9 - 0.8 - 0.7 - 0.6 - 0.5 - 0.4 - 0.3 - 0.2 - 0.1 0 attenuation (db) control voltage (v) attenuation vs. vc vs. temperature vd = 5 v, id = 330 ma, vg = - 0.7 v, 29 ghz - 40 c 25 c 85 c 0 5 10 15 20 25 30 35 40 45 - 1 - 0.9 - 0.8 - 0.7 - 0.6 - 0.5 - 0.4 - 0.3 - 0.2 - 0.1 0 attenuation (db) control voltage (v) attenuation vs. vc vs. frequency vd = 5 v, id = 330 ma, vg = - 0.7 v, 25 c 28ghz 29ghz 30ghz 31ghz
tg a4541 - sm ka - band variable gain driver amplifier preliminary data sheet: rev - 0 5 / 0 8 /12 - 6 of 14 - disclaimer: subject to change without notice ? 2012 triquint semiconductor, inc. connecting the digital world to the global network ? typical performance (cont.) id2+ id3 are held constant throughout the test. - 80 - 75 - 70 - 65 - 60 - 55 - 50 - 45 - 40 - 35 - 30 14 16 18 20 22 24 26 28 im5 (dbc) pout/tone (dbm) im5 vs. pout/tone vs. frequency vd = 6 v, id = 1.3 a, vg = - 0.55 v typical, +25 0 c 12.7ghz 13.30ghz 14.4ghz 15.4ghz 0 5 10 15 20 25 30 35 40 28 28.5 29 29.5 30 30.5 31 otoi (dbm) frequency (ghz) otoi vs. frequency vs. control voltage vd = 5 v, idq = 330 ma, vg = - 0.7 v, 25 c - 1.00 v - 0.85 v - 0.71 v - 0.62 v 12 dbm pout/tone - 5 0 5 10 15 20 25 30 35 40 45 28 28.5 29 29.5 30 30.5 31 gain (db) frequency (ghz) gain vs. frequency vs. control voltage vd = 5 v, id = 330 ma, vg = - 0.7 v, 25 c - 1.00v - 0.85v - 0.71v - 0.62v - 0.48v 0.00v - 0.56v 16 18 20 22 24 26 28 30 32 34 36 - 2 0 2 4 6 8 10 12 14 otoi (dbm) pout/tone (dbm) otoi vs. pout/tone vs. frequency vd = 5 v, idq = 330 ma, vc = - 1.00 v, vg = - 0.7 v, 25 c 28ghz 29ghz 30ghz 31ghz - 2 2 6 10 14 18 22 26 28 28.5 29 29.5 30 30.5 31 p1db (dbm) frequency (ghz) power vs. frequency vs. control voltage vd = 5 v, idq = 330 ma, vg = - 0.7 v, 25 c - 1.00v - 0.85v - 0.71v - 0.62v - 0.56v - 0.48v 0.00v
tg a4541 - sm ka - band variable gain driver amplifier preliminary data sheet: rev - 0 5 / 0 8 /12 - 7 of 14 - disclaimer: subject to change without notice ? 2012 triquint semiconductor, inc. connecting the digital world to the global network ? application circuit bias - up procedure bias - down procedure set v g to - 1.5 v turn off rf supply set vd1 to 5 v reduce v g to - 1.5 v set vd2 +vd3 to 5 v set vc to 0 v set vc to - 1.00 v reduce vd2 +vd3 to 0 v adjust vg mo re positive until quiescent id2+id3 = 270 ma, id1 = 60 ma, vg ~ - 0.7 v typical reduce vd1 to 0 v apply rf signal vd1 and vd2 +vd3 should be separately monitored. the tga4541 - sm will be marked with the 4541 designator and a lot code marked below the part designator. the y y represents the last two digit s of the year the part was manufactured, the ww is the work week, and the xxxx is an au to - generated assembly lot number . vd2 + vd3 vc vg vd1 rf input rf output 4541 yyww xxxx - 80 - 75 - 70 - 65 - 60 - 55 - 50 - 45 - 40 - 35 - 30 14 16 18 20 22 24 26 28 im5 (dbc) pout/tone (dbm) im5 vs. pout/tone vs. frequency vd = 6 v, id = 1.3 a, vg = - 0.55 v typical, +25 0 c 12.7ghz 13.30ghz 14.4ghz 15.4ghz
tg a4541 - sm ka - band variable gain driver amplifier preliminary data sheet: rev - 0 5 / 0 8 /12 - 8 of 14 - disclaimer: subject to change without notice ? 2012 triquint semiconductor, inc. connecting the digital world to the global network ? pin description pin symbol description 1, 2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13 , 19, 20, 21, 22, 23, 25, 26, 27 , 28, 29, 30, 31, 32, 33, 34 , 39, 40 n/c no internal connection; must be grounded on pcb . 4 rf in rf input. 14 vg gate voltage. bias network is required; se e application circuit on page 7 as an example. 15, 17, 37 n/c no internal connection; should be left open. 16 vd2 drain voltage. bias network is required; se e application circuit on page 7 as an example. 18 vd3 drain voltage. bias network is required; se e application circuit on page 7 as an example. 24 rf out rf output. 35 vc control v oltage. bias network is required; se e application circuit on page 7 as an example. 36 gnd internally grounded through a resistor; must be grounded on pcb. 38 vd1 drain voltage. bias network is required; se e application circuit on page 7 as an example. 41 gnd backside p addle s; must be grounded on pcb . multiple vias should be employed to minimize inductance and thermal resistance; see m ounting configuration on page 12 for suggested footprint. top view
tg a4541 - sm ka - band variable gain driver amplifier preliminary data sheet: rev - 0 5 / 0 8 /12 - 9 of 14 - disclaimer: subject to change without notice ? 2012 triquint semiconductor, inc. connecting the digital world to the global network ? applications information pc board layout top rf layer is 0.0 10 thick rogers ro 32 03, ? r = 3.02 . metal layers are 1 /2 - oz copper. the pad pattern shown has been developed and tested for optimized assembly at triquint semiconductor. the pcb land pattern has been developed to accommodate lead and package tolerances. since surface m ount processes vary from company to company, careful process development is recommended. for further technical information, r efer to the tga4541 - sm product information page. bill of material ref des value description manufacturer part number c1 - c4 100 p f cap , 0402, 20v, 5%, cog various c5 - c8 1 f cap, 0603, 25v, 5%, x5r various c9 - c10 10 f cap , 0805, 25v, 5%, x5r various r1 - r2 15 res, 0402, 0.1w, smd various detail is on the next page c1 c2 c3 c4 r1 r2 c5 c6 c7 c8 c9 c10
tg a4541 - sm ka - band variable gain driver amplifier preliminary data sheet: rev - 0 5 / 0 8 /12 - 10 of 14 - disclaimer: subject to change without notice ? 2012 triquint semiconductor, inc. connecting the digital world to the global network ? applications information (cont.) pc board tuning layout dimens ions are in millimeters .
tg a4541 - sm ka - band variable gain driver amplifier preliminary data sheet: rev - 0 5 / 0 8 /12 - 11 of 14 - disclaimer: subject to change without notice ? 2012 triquint semiconductor, inc. connecting the digital world to the global network ? mechanical information package information and dimensions all dimensions are in millimeters. this package is lead - free/rohs - complia nt with a copper alloy base (cda194), and the plating material on the leads is nipdau . it is compatible with both lead - free (maximum 260 c reflow temperature) and tin - lead (maximum 245 c reflow temperature) soldering processes.
tg a4541 - sm ka - band variable gain driver amplifier preliminary data sheet: rev - 0 5 / 0 8 /12 - 12 of 14 - disclaimer: subject to change without notice ? 2012 triquint semiconductor, inc. connecting the digital world to the global network ? mechanical information (cont . ) mounting configuration all dimens ions are in millimeters . n otes: 1 . ground vias are critical for the proper performan ce of this device. vias have a drill diameter of 0 . 2 5 mm . tape and reel information tape and reel specifications for this part are also available on the triquint website in the application notes section. standard t/r size = 5 00 pieces on a 7 x 0.5 reel. carrier and cover tape dimensions part feature symbol size (in) size (mm) cavity length a0 0. 248 6.3 width b0 0. 248 6.3 depth k0 0.0 43 1. 1 pitch p1 0. 472 12.0 distance between centerline cavity to perforation length direction p2 0.079 2 .0 cavity to perforation width direction f 0.2 95 7.5 cover tape width c 0. 561 14.25 carrier tape width w 0. 63 1 6 .0
tg a4541 - sm ka - band variable gain driver amplifier preliminary data sheet: rev - 0 5 / 0 8 /12 - 13 of 14 - disclaimer: subject to change without notice ? 2012 triquint semiconductor, inc. connecting the digital world to the global network ? product compliance information esd information esd rating: tbd value: tbd test: human body model (hbm) standard: jedec standard jesd22 - a114 solderability compatible with the latest version of j - std - 020, lead free solder, 260 c this part is compliant with eu 2002/95/ec rohs directive (restrictions on the use of certain hazardous substances in electrical and electronic equipment). this product also has the following attributes: ? lead free ? halogen free (chlorine, bromine) ? antimony free ? tbbp - a (c 15 h 12 br 4 0 2 ) free ? pfos free ? svhc free msl rating level tbd at +260 c convection reflow the part is rated moisture sensitivity level tbd at 260c per jedec standard ipc/jedec j - std - 020. eccn us department of commerce ear99 recommended soldering temperature profile
tg a4541 - sm ka - band variable gain driver amplifier preliminary data sheet: rev - 0 5 / 0 8 /12 - 14 of 14 - disclaimer: subject to change without notice ? 2012 triquint semiconductor, inc. connecting the digital world to the global network ? contact information for the latest specifications, additional product information, worldwide sales and distribution locations, and information ab out triquint: web: www.triquint.com tel: +1. 972.994.8465 email: info - sales@tqs.com fax: +1.972.99 4.8504 for technical questions and application information: email: info - networks@tqs. com important notice the information contained herein is believed to be reliable . triquint makes no warranties regarding the information contain ed herein . triquint assumes no responsibility or liability whatsoever for any of the information contained her ein. triquint assumes no responsibility or liability whatsoever for the use of the information contained herein. the information contained herein is provided "as is, where is" and with all faults, and the entire risk associated with such inf ormation is entirely with the user. all information contained herein is subject to change without notice. customers should obtain and verify the latest relevant information before placing orders for triquint products. the information contained herein or any use of such information does not grant, explicitly or implicitly, to any party any patent rights, licenses, or any other intellectual pro perty rights, whether with regard to such information itself or anything described by such information. triquint products are not warranted or authorized for use as critical components in medical, life - saving, or life - sustaining applications, or other applications where a failure would reasonably be expected to cause severe personal injury or death.

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