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specifications and information are subject to change without notice. wj communications, inc phone 1 - 800 - wj1 - 4401 fax: 408 - 577 - 6621 e - mail: sales@wj.com web site: www.wj.com september 2004 fp1189 ? - watt hfet product information product features 50 ? 4000 mhz +27 dbm p1db +40 dbm output ip3 high drain efficiency 20.5 db gain @ 900 mhz lead - free/green/ rohs - compliant sot - 89 package mttf >100 years applications mobile infrastructure catv / dbs w - lan / ism rfid defense / homeland s ecurity fixed wireless product description the fp1189 is a high performance ? - watt hfet (heterostructure fet) in a low - cost sot - 89 surface - mount package. this device works optimally at a drain bias of +8 v and 125 ma to achieve +40 dbm output ip3 perfo rmance and an output power of +27 dbm at 1 - db compression, while providing 20.5 db gain at 900 mhz. the device conforms to wj communications? long history of producing high reliability and quality components. the fp1189 has an associated mttf of greater than 100 years at a mounting temperature of 85 c and is available in both the standard sot - 89 package and the environmentally - friendly lead - free/green/rohs - compliant and green sot - 89 package. all devices are 100% rf & dc tested. the product is targeted for use as driver amplifiers for wireless infrastructure where high performance and high efficiency are required. functional diagram function pin no. input / gate 1 output / drain 3 ground 2, 4 specifications dc parameter units min typ max sat urated drain current, i dss (1) ma 220 290 360 transconductance, g m ms 155 pinch off voltage, v p (2) v - 2.1 rf parameter (3) units min typ max operational bandwidth mhz 50 - 4000 test frequency mhz 800 small signal gain db 20.5 ss gain (50 w , unmatched) db 17 21 maximum stable gain db 24 output p1db dbm +27.4 output ip3 (4) dbm +40 noise figure db 2.7 drain bias +8 v @ 125 ma 1. i dss is measured with v gs = 0 v, v ds = 3 v. 2. pinch - off voltage is measured when i ds = 1.2 ma. 3. test conditions unless otherwise noted : t = 25oc, v ds = 8 v, i dq = 125 ma, in a tuned application circuit with z l = z lopt , z s = z sopt (optimized for output power). 4. 3oip measured with two tones at an output power of +12 dbm/tone separated by 1 m hz. the suppression on the largest im3 product is used to calculate the 3oip using a 2:1 rule. absolute maximum rating parameter rating operating case temperature - 40 to +85 c storage temperature - 55 to +150 c dc power 2.0 w rf input power (continu ous) 6 db above input p1db drain to gate voltage, v dg +14 v junction temperature +220 c operation of this device above any of these parameters may cause permanent damage. typical performance (5) parameter units typical frequency mhz 915 1960 2140 2 450 gain db 20.6 15.7 14.7 13.2 input return loss db 13 26 24 36 output return loss db 6.0 9.6 9.0 7.6 output p1db dbm +27.4 +27.2 +27.2 +28.1 output ip3 (4) dbm +39.9 +40.4 +39.7 +40.0 noise figure db 2.7 3.7 4.3 is - 95 channel power @ - 45 dbc acpr dbm +21 +20.8 w - cdma ch. power @ - 45 dbc aclr +18.4 drain voltage v +8 drain current ma 125 5. typical parame ters represent performance in a tuned application circuit. ordering information part no. description fp1189 ? - watt hfe t (leaded sot - 89 pkg) fp1189 - g ? - watt hfet (lead - free/green/rohs - compliant sot - 89 pkg) fp1189 - pcb900s 870 ? 960 mhz application circuit fp1189 - pcb1900s 1930 ? 1990 mhz application circuit fp1189 - pcb2140s 2110 ? 2170 mhz application circuit rf in gnd rf out gnd 1 2 3 4
specifications and information are subject to change without notice. wj communications, inc phone 1 - 800 - wj1 - 4401 fax: 408 - 577 - 6621 e - mail: sales@wj.com web site: www.wj.com september 2004 fp1189 ? - watt hfet product information typical device data s - parameters (v ds = +8 v, i ds = 125 ma, t = 25 c, calibrated to device leads) 0 1 2 3 4 5 6 frequency (ghz) s21, maximum stable gain vs. frequency 0 5 10 15 20 25 30 s21, msg (db) db(|s[2,1]|) db(msg) 0 1.0 1.0 -1.0 10.0 10.0 -10.0 5.0 5.0 -5.0 2.0 2.0 -2.0 3.0 3.0 -3.0 4.0 4.0 -4.0 0.2 0.2 -0.2 0.4 0.4 -0.4 0.6 0.6 -0.6 0.8 0.8 -0.8 s11 swp max 6ghz swp min 0.05ghz 0 1.0 1.0 -1.0 10.0 10.0 -10.0 5.0 5.0 -5.0 2.0 2.0 -2.0 3.0 3.0 -3.0 4.0 4.0 -4.0 0.2 0.2 -0.2 0.4 0.4 -0.4 0.6 0.6 -0.6 0.8 0.8 -0.8 s22 swp max 6ghz swp min 0.05ghz note: measurements were made on the packaged device in a test fixture with 50 ohm input and output lines. the s - parameters shown are the de - embedded data dow n to the device leads and represents typical performance of the device. freq (mhz) s11 (mag) s11 (ang) s21 (mag) s21 (ang) s12 (mag) s12 (ang) s22 (mag) s22 (ang) 50 1.000 - 4.52 10.313 176.55 0.002 87.44 0.544 - 3.02 250 0.988 - 21.51 10.120 163.88 0.01 0 76.64 0.535 - 13.77 500 0.959 - 42.21 9.681 148.45 0.020 64.73 0.520 - 27.13 750 0.933 - 61.23 9.005 134.71 0.028 53.45 0.495 - 39.31 1000 0.895 - 78.75 8.270 122.08 0.035 44.25 0.469 - 50.54 1250 0.860 - 95.09 7.561 109.58 0.040 34.30 0.447 - 60.96 1500 0.8 48 - 109.61 7.028 99.15 0.044 26.69 0.428 - 70.64 1750 0.821 - 122.91 6.408 88.96 0.046 19.57 0.407 - 79.82 2000 0.807 - 135.32 5.950 79.64 0.048 13.93 0.400 - 88.93 2250 0.796 - 147.01 5.474 70.37 0.049 7.21 0.386 - 97.59 2500 0.785 - 157.00 5.087 62.43 0.050 2.99 0.374 - 105.24 2750 0.780 - 166.26 4.732 53.97 0.050 - 1.58 0.376 - 113.47 3000 0.775 - 175.87 4.415 45.54 0.049 - 6.79 0.369 - 121.84 3250 0.766 175.78 4.082 38.18 0.049 - 9.36 0.368 - 129.77 3500 0.770 167.34 3.843 30.76 0.048 - 12.48 0.372 - 137.25 3750 0.771 159.87 3.602 23.91 0.050 - 14.97 0.369 - 144.61 4000 0.771 152.07 3.408 16.74 0.050 - 17.53 0.374 - 152.17 4250 0.771 145.63 3.241 9.15 0.048 - 19.53 0.382 - 161.00 4500 0.772 138.97 3.053 2.49 0.048 - 21.27 0.387 - 168.31 4750 0.770 132.07 2.876 - 4.50 0 .050 - 23.00 0.396 - 175.08 5000 0.780 126.56 2.743 - 10.47 0.048 - 25.08 0.408 177.65 5250 0.794 120.21 2.622 - 17.28 0.049 - 26.64 0.412 170.89 5500 0.795 114.22 2.507 - 24.43 0.051 - 30.44 0.423 162.41 5750 0.794 108.27 2.346 - 31.21 0.052 - 30.16 0.442 154.6 6 6000 0.798 102.86 2.237 - 36.95 0.052 - 31.18 0.446 147.41 device s - parameters are available for download off of the website at: http://www.wj.com 1 2 3 4 gh 5 gh 6 1 2 3 4 5 6
specifications and information are subject to change without notice. wj communications, inc phone 1 - 800 - wj1 - 4401 fax: 408 - 577 - 6621 e - mail: sales@wj.com web site: www.wj.com september 2004 fp1189 ? - watt hfet product information application circuit: 870 ? 960 mhz (fp1189 - pcb900s) the application circuit is matched for output power. typical rf performance drain bias = +8 v, i ds = 125 ma, 25 c frequency mhz 870 915 960 s21 ? gain db 20.9 20.6 19.8 s11 ? input return loss db - 10 - 13 - 10 s22 ? output return loss db - 5.2 - 6.0 - 7.6 output p1db dbm +27.5 +27.4 +27.5 output ip3 ( +12 dbm / tone, 1 mhz spacing) dbm +39.9 noise figure db 2.7 2.7 2.6 is - 95 channel power @ - 45 dbc acpr dbm +21 res r= id= 10 ohm r2 ind l= id= 12 nh l4 cap c= id= 3.9 pf c13 ind l= id= 47 nh l1 res r= id= 20 ohm r1 cap c= id= 68 pf c1 cap c= id= 18 pf c2 cap c= id= 68 pf c3 cap c= id= 1000 pf c4 cap c= id= dnp pf c10 res r= id= 0 ohm l2 cap c= id= dnp pf c12 ind l= id= 47 nh l3 cap c= id= 18 pf c6 cap c= id= 68 pf c7 cap c= id= 1000 pf c8 cap c= id= 1e5 pf c11 cap c= id= dnp pf c5 cap c= id= 68 pf c9 1 2 subckt net= id= "fp1189" q1 port z= p= 50 ohm 1 port z= p= 50 ohm 2 -vgg vds = 8 v @ 125 ma 14 mil getek tm ml200dss (e r = 4.2) the main microstrip line has a line impedance of 50 o. bill of materials ref. desig. value part style size c1, c3, c7, c9 68 pf chip capacitor 0603 c2, c6 18 pf chip capacitor 0603 c4, c8 1000 pf chip capacitor 0603 c11 0.1 m f chip capacitor 1206 c13 3.9 pf chip capacitor 0603 l1, l3 47 nh multilayer chip inductor 0603 l2 0 o chip resisto r 0603 l4 12 nh multilayer chip inductor 0603 r1 10 o chip resistor 0603 r2 20 o chip resistor 0603 q1 fp1189 wj 0.5w hfet sot - 89 c5, c12, c10 do not place
specifications and information are subject to change without notice. wj communications, inc phone 1 - 800 - wj1 - 4401 fax: 408 - 577 - 6621 e - mail: sales@wj.com web site: www.wj.com september 2004 fp1189 ? - watt hfet product information fp1189 - pcb900s application circuit performance plots s11 vs. frequency -30 -25 -20 -15 -10 -5 0 860 880 900 920 940 960 frequency (mhz) s11 (db) -40c +25c +85c s21 vs. frequency 17 18 19 20 21 22 860 880 900 920 940 960 frequency (mhz) s21 (db) -40c +25c +85c s22 vs. frequency -30 -25 -20 -15 -10 -5 0 860 880 900 920 940 960 frequency (mhz) s22 (db) -40c +25c +85c p1db vs. frequency 20 22 24 26 28 30 860 880 900 920 940 960 frequency (mhz) p1db (dbm) -40c +25c +85c noise figure vs. frequency 0 1 2 3 4 5 6 860 880 900 920 940 960 frequency (mhz) nf (db) -40c +25c +85c acpr vs. channel power is-95, 9 ch. forward, 885 khz offset, 30 khz meas bw -70 -60 -50 -40 -30 16 17 18 19 20 21 22 23 24 output channel power (dbm) acpr (dbc) -40 c +25 c +85 c freq = 915 mhz oip3 vs. temperature 32 34 36 38 40 42 -40 -15 10 35 60 85 temperature (c) oip3 (dbm) freq = 915, 916 mhz +12 dbm / tone imd products vs. output power fundamental frequency = 915 mhz, 916 mhz; temp = +25 c -80 -60 -40 -20 0 4 8 12 16 20 24 output power (dbm) imd products (dbm) imd_low imd_high oip3 vs. output power fundamental frequency = 915 mhz, 916 mhz; temp = +25 c 25 30 35 40 45 0 4 8 12 16 20 24 output power (dbm) oip3 (dbm) output power / gain vs. input power frequency = 915 mhz, temp = -40 c 12 14 16 18 20 22 -12 -8 -4 0 4 8 12 input power (dbm) gain (db) 10 14 18 22 26 30 output power (dbm) output power gain output power / gain vs. input power frequency = 915 mhz, temp = +25 c 12 14 16 18 20 22 -12 -8 -4 0 4 8 12 input power (dbm) gain (db) 10 14 18 22 26 30 output power (dbm) output power gain output power / gain vs. input power frequency = 915 mhz, temp = +85 c 12 14 16 18 20 22 -12 -8 -4 0 4 8 12 input power (dbm) gain (db) 10 14 18 22 26 30 output power (dbm) output power gain
specifications and information are subject to change without notice. wj communications, inc phone 1 - 800 - wj1 - 4401 fax: 408 - 577 - 6621 e - mail: sales@wj.com web site: www.wj.com september 2004 fp1189 ? - watt hfet product information application circuit: 1 930 ? 1990 mhz (fp1189 - pcb1900s) the application circuit is matched for output power. typical rf performance drain bias = +8 v, i ds = 125 ma, 25 c frequency mhz 1930 1960 1990 s21 ? gain db 15.8 15.7 15.5 s11 ? input return loss db - 26 - 26 - 24 s22 ? o utput return loss db - 9.2 - 9.6 - 9.0 output p1db dbm +27.4 +27.2 +27.4 output ip3 (+12 dbm / tone, 1 mhz spacing) dbm +40.4 noise figure db 3.7 is - 95 channel power @ - 45 dbc acpr dbm +20.8 res r= id= 10 ohm r2 cap c= id= dnp pf c13 ind l= id= 22 nh l1 res r= id= 100 ohm r1 cap c= id= 33 pf c1 cap c= id= dnp pf c2 ind l= id= 22 nh l3 cap c= id= 33 pf c6 cap c= id= dnp pf c7 cap c= id= dnp pf c8 cap c= id= dnp pf c12 cap c= id= 0.5 pf c5 cap c= id= 33 pf c9 cap c= id= 1.8 pf c15 cap c= id= dnp pf c13 ind l= id= 2.7 nh l2 cap c= id= 1e5 pf c11 cap c= id= dnp pf c3 cap c= id= 33 pf c4 cap c= id= dnp pf c10 1 2 subckt net= id= "fp1189" q1 port z= p= 50 ohm 1 port z= p= 50 ohm 2 -vgg vds = 8 v @ 125 ma 14 mil getektm ml200dss (er = 4.2) the main microstrip line has a line impedance of 50 o. bill of materials ref. desig. value part style size c1, c4, c6, c9 33 pf chip capacitor 0603 c5 0.5 pf chip capacitor 0603 c11 0.1 m f chip capacitor 1206 c15 1.8 pf chip capacitor 0603 l1, l3 22 nh multilayer chip inductor 0603 l2 2.7 nh multilayer chip inductor 0603 r1 100 o chip resistor 0603 r2 10 o chip resistor 0603 q1 fp1189 wj 0.5w hfet sot - 89 c2, c3, c7, c8, c10, c12, c13, c14 do not place
specifications and information are subject to change without notice. wj communications, inc phone 1 - 800 - wj1 - 4401 fax: 408 - 577 - 6621 e - mail: sales@wj.com web site: www.wj.com september 2004 fp1189 ? - watt hfet product information f p1189 - pcb1900s application circuit performance plots s11 vs. frequency -30 -25 -20 -15 -10 -5 0 1930 1950 1970 1990 frequency (mhz) s11 (db) -40c +25c +85c s21 vs. frequency 12 13 14 15 16 17 1930 1950 1970 1990 frequency (mhz) s21 (db) -40c +25c +85c s22 vs. frequency -30 -25 -20 -15 -10 -5 0 1930 1950 1970 1990 frequency (mhz) s22 (db) -40c +25c +85c p1db vs. frequency 20 22 24 26 28 30 1930 1950 1970 1990 frequency (mhz) p1db (dbm) -40c +25c +85c noise figure vs. frequency 0 1 2 3 4 5 6 1930 1950 1970 1990 frequency (mhz) nf (db) -40c +25c +85c acpr vs. channel power is-95, 9 ch. forward, 885 khz offset, 30 khz meas bw -70 -60 -50 -40 -30 16 17 18 19 20 21 22 23 24 output channel power (dbm) acpr (dbc) -40 c +25 c +85 c freq = 1960 mhz oip3 vs. temperature 32 34 36 38 40 42 -40 -15 10 35 60 85 temperature (c) oip3 (dbm) freq = 1960, 1961 mhz +12 dbm / tone imd products vs. output power fundamental frequency = 1960, 1961 mhz; temp = +25 c -80 -60 -40 -20 0 4 8 12 16 20 24 output power (dbm) imd products (dbm) imd_low imd_high oip3 vs. output power fundamental frequency = 1960, 1961 mhz; temp = +25 c 25 30 35 40 45 0 4 8 12 16 20 24 output power (dbm) oip3 (dbm) output power / gain vs. input power frequency = 1960 mhz, temp = -40 c 8 10 12 14 16 18 -4 0 4 8 12 16 20 input power (dbm) gain (db) 10 14 18 22 26 30 output power (dbm) output power gain output power / gain vs. input power frequency = 1960 mhz, temp = +25 c 8 10 12 14 16 18 -4 0 4 8 12 16 20 input power (dbm) gain (db) 10 14 18 22 26 30 output power (dbm) output power gain output power / gain vs. input power frequency = 1960 mhz, temp = +85 c 8 10 12 14 16 18 -4 0 4 8 12 16 20 input power (dbm) gain (db) 10 14 18 22 26 30 output power (dbm) output power gain
specifications and information are subject to change without notice. wj communications, inc phone 1 - 800 - wj1 - 4401 fax: 408 - 577 - 6621 e - mail: sales@wj.com web site: www.wj.com september 2004 fp1189 ? - watt hfet product information application circuit: 2110 ? 2170 mhz (fp1189 - pcb2140s) the application circuit is matched for output power. typical rf performance drain bias = +8 v, i ds = 125 ma, 25 c frequency mhz 2 110 2140 2170 s21 ? gain db 14.7 14.7 14.7 s11 ? input return loss db - 24 - 24 - 24 s22 ? output return loss db - 7.6 - 9.0 - 9.8 output p1db dbm +27.1 +27.2 +26.8 output ip3 (+12 dbm / tone, 1 mhz spacing) dbm +39.7 noise figure db 4.2 4.3 4.2 w - c dma channel power @ - 45 dbc acpr dbm +18.4 res r= id= 10 ohm r2 ind l= id= 18 nh l1 res r= id= 100 ohm r1 cap c= id= 22 pf c1 cap c= id= dnp pf c2 ind l= id= 18 nh l2 cap c= id= dnp pf c6 cap c= id= 22 pf c7 cap c= id= 1e5 pf c8 cap c= id= 22 pf c9 ind l= id= 2.7 nh l3 cap c= id= 33 pf c3 cap c= id= 0.5 pf c5 cap c= id= dnp pf c4 cap c= id= dnp pf c11 cap c= id= 1.5 pf c10 1 2 subckt net= id= "fp1189" q1 port z= p= 50 ohm 1 port z= p= 50 ohm 2 -vgg vds = 8 v @ 125 ma 14 mil getek tm ml200dss (e r = 4.2) the main microstrip line has a line impedance of 50 o. bill of materials ref. desig. value part style size c1, c7, c9 22 pf chip capacitor 0603 c3 33 pf chip cap acitor 0805 c5 0.5 pf chip capacitor 0603 c8 0.1 m f chip capacitor 1206 c10 1.5 pf chip capacitor 0603 l1, l2 18 nh multilayer chip inductor 0603 l3 2.7 nh multilayer chip resistor 0603 r1 100 o chip resistor 0603 r2 10 o chip resistor 0603 q1 fp11 89 wj 0.5w hfet sot - 89 c2, c4, c6, c11 do not place
specifications and information are subject to change without notice. wj communications, inc phone 1 - 800 - wj1 - 4401 fax: 408 - 577 - 6621 e - mail: sales@wj.com web site: www.wj.com september 2004 fp1189 ? - watt hfet product information fp1189 - pcb2140s application circuit performance plots s11 vs. frequency -30 -25 -20 -15 -10 -5 0 2110 2130 2150 2170 frequency (mhz) s11 (db) -40c +25c +85c s21 vs. frequency 11 12 13 14 15 16 2110 2130 2150 2170 frequency (mhz) s21 (db) -40c +25c +85c s22 vs. frequency -30 -25 -20 -15 -10 -5 0 2110 2130 2150 2170 frequency (mhz) s22 (db) -40c +25c +85c p1db vs. frequency 20 22 24 26 28 30 2110 2130 2150 2170 frequency (mhz) p1db (dbm) -40c +25c +85c noise figure vs. frequency 0 1 2 3 4 5 6 2110 2130 2150 2170 frequency (mhz) nf (db) -40c +25c +85c acpr vs. channel power 3gpp w-cdma, test model 1 +64 dpch, 5 mhz offset -65 -60 -55 -50 -45 -40 -35 13 14 15 16 17 18 19 20 21 output channel power (dbm) acpr (dbc) -40 c +25 c +85 c freq = 2140 mhz oip3 vs. temperature 32 34 36 38 40 42 -40 -15 10 35 60 85 temperature (c) oip3 (dbm) freq = 2140, 2141 mhz +12 dbm / tone output power / gain vs. input power frequency = 2140 mhz, temp = +25 c 6 8 10 12 14 16 0 4 8 12 16 20 input power (dbm) gain (db) 10 14 18 22 26 30 output power (dbm) output power gain oip3 vs. output power fundamental frequency = 1960, 1961 mhz; temp = +25 c 25 30 35 40 45 0 4 8 12 16 20 24 output power (dbm) oip3 (dbm) output power / gain vs. input power frequency = 2140 mhz, temp = -40 c 6 8 10 12 14 16 0 4 8 12 16 20 input power (dbm) gain (db) 10 14 18 22 26 30 output power (dbm) output power gain imd products vs. output power fundamental frequency = 2140, 2141 mhz; temp = +25 c -80 -60 -40 -20 0 4 8 12 16 20 24 output power (dbm) imd products (dbm) imd_low imd_high output power / gain vs. input power frequency = 2140 mhz, temp = +85 c 6 8 10 12 14 16 0 4 8 12 16 20 input power (dbm) gain (db) 10 14 18 22 26 30 output power (dbm) output power gain
specifications and information are subject to change without notice. wj communications, inc phone 1 - 800 - wj1 - 4401 fax: 408 - 577 - 6621 e - mail: sales@wj.com web site: www.wj.com september 2004 fp1189 ? - watt hfet product information reference design: 2450 mhz the application circuit is matched for output power. typical rf performance, 25 c frequency mhz 245 0 2450 s21 ? gain db 13.2 s11 ? input return loss db - 36 s22 ? output return loss db - 7.6 output p1db dbm +27.5 +28.1 output ip3 (+12 dbm / tone, 1 mhz spacing) dbm +38 +40 drain voltage v +8 +8 drain current ma 100 125 the 2450 mhz reference circuit is shown for design purposes only. an evaluation board is not readily available for this application. the reader can obtain an fp1189 - pcb2140s evaluation board and modify it with the circuit shown to achieve the performance shown in this referenc e design. only two component changes are required (c4 and l3) from the fp1189 - pcb2140s evaluation board. 2200 2300 2400 2500 2600 2700 frequency (mhz) s-parameters -30 -25 -20 -15 -10 -5 0 5 10 15 db(|s[1,1]|) db(|s[2,1]|) db(|s[2,2]|) cap c= id= 22 pf c1 cap c= id= 1.2 pf c4 cap c= id= 33 pf c3 cap c= id= 0.5 pf c5 cap c= id= 22 pf c7 cap c= id= 100000 pf c8 cap c= id= 22 pf c7 ind l= id= 18 nh l1 ind l= id= 18 nh l2 ind l= id= 1.8 nh l3 res r= id= 100 ohm r1 res r= id= 10 ohm r2 tlinp f0= loss= eeff= l= z0= id= 0 mhz 0 4.2 135 mil 50 ohm tl1 tlinp f0= loss= eeff= l= z0= id= 0 mhz 0 4.2 45 mil 50 ohm tl2 tlinp f0= loss= eeff= l= z0= id= 0 mhz 0 4.2 80 mil 50 ohm tl3 tlinp f0= loss= eeff= l= z0= id= 0 mhz 0 4.2 35 mil 50 ohm tl4 cap c= id= dnp pf c2 cap c= id= dnp pf c6 1 2 subckt net= id= "fp1189" q1 port z= p= 50 ohm 1 port z= p= 50 ohm 2 vds = 8 v @ 125 ma -vgg the lengths shown in the microstrip lines are referenced from the component or pin edge - to - edge. 14 mil getek tm ml200dss (e r = 4.2) the main microstrip line has a line impedance of 50 o. bill of materials ref. desig. value part style size c1, c7, c9 22 pf chip capacitor 0603 c3 33 pf chip capacitor 0805 c4 1.2 pf chip capacitor 0603 c5 0.5 pf chip capacito r 0603 c8 0.1 m f chip capacitor 1206 l1, l2 18 nh multilayer chip inductor 0603 l3 1.8 nh multilayer chip resistor 0603 r1 100 o chip resistor 0603 r2 10 o chip resistor 0603 q1 fp1189 wj 0.5w hfet sot - 89 c2, c4, c6, c11 do not place c4
specifications and information are subject to change without notice. wj communications, inc phone 1 - 800 - wj1 - 4401 fax: 408 - 577 - 6621 e - mail: sales@wj.com web site: www.wj.com september 2004 fp1189 ? - watt hfet product information application note: constant - current active - biasing special attention should be taken to properly bias the fp1189. power supply sequencing is required to prevent the device from operating at 100% idss for a prolonged period of time and possibly causing damag e to the device. it is recommended that for the safest operation, the negative supply be ?first on and last off.? with a negative gate voltage present, the drain voltage can then be applied to the device. the gate voltage can then be adjusted to have th e device be used at the proper quiescent bias condition. an optional active - bias current mirror is recommended for use with the application circuits shown in this datasheet. generally in a laboratory environment, the gate voltage is adjusted until the dr ain draws the recommended operating current. the gate voltage required can vary slightly from device to device because of device pinchoff variation, while also varying slightly over temperature. the active - bias circuit, shown on the right, uses dual pnp transistors to provide a constant drain current into the fp1189, while also eliminating the effects of pinchoff variation. this configuration is best suited for applications where the intended output power level of the amplifier is backed off at least 6 d b away from its compression point. with the implementation of the circuit, lower p1db values may be measured for a class - ab amplifier, where the device will attempt to source more drain current while the circuit tries to provide a constant drain current. the circuit should be connected directly in line with where the voltage supplies would be normally connected with the amplifier circuit, as shown the diagram. any required matching circuitry remains the same, although it is not shown in the diagram. thi s recommended active - bias constant - current circuit adds 7 components to the parts count for implementation, but should cost only an extra $0.144 to realize ($0.10 for u1, $0.0029 for r1, r3, r4, r5, $0.024 for r2, and $0.0085 for c1). temperature compensa tion is achieved by tracking the voltage variation with the temperature of the emitter - to - base junction of the two pnp transistors. as a 1st order approximation, this is achieved by using matched transistors with approximately the same ibe current. thus the transistor emitter voltage adjusts the hfet gate voltage so that the device draws a constant current, regardless of the temperature. a rohm dual transistor - umt1n - is recommended for cost, minimal board space requirements, and to minimize the variat ion between the two transistors. minimizing the variability between the base - to - emitter junctions allow more accuracy in setting the current draw. more details can be found in a separate application note ?active - bias constant - current source recommended f or hfets? found on the wj website. parameter fp1189 pos supply, vdd +8 v neg supply, vgg - 5 v vds +7.75 v ids 125 ma r1 62 w r2 2.0 w r3 1.8 k w r4 1 k w r5 1 k w 6 1 5 2 4 3 r1 r2 r3 r4 1 k w - v gg +v dd u1 rohm umt1n rf in rf out dut m.n. m.n. hfet application circuit r5 c1 .01 m f
specifications and information are subject to change without notice. wj communications, inc phone 1 - 800 - wj1 - 4401 fax: 408 - 577 - 6621 e - mail: sales@wj.com web site: www.wj.com september 2004 fp1189 ? - watt hfet product information fp1189 (sot - 89 package) mechanical information this package may contain lead - bearing materials. the plating material on the leads is snpb. outline drawing land pattern thermal specifications parameter rating operating case temperature - 40 to +85 c thermal resistance, rth (1) 68 c/w junction temperature, tjc (2) 153 c 1. the thermal resistance is referenced from the hottest part of the junction to the ground tab (pin 4). 2. this corresponds to the typical drain biasing condition of +8v, 125 ma at an 85 c case temperature. a minimum mttf of 1 million hours is achieved for junction temperatures below 160 c. product marking the fp1189 will be marked wi th an ?fp1189? designator. an alphanumeric lot code (?xxxx - x?) is also marked below the part designator on the top surface of the package. tape and reel specifications for this part are located on the website in the ?application notes? section. msl / e sd rating esd rating: class 1b value: passes / 500v to <1000v test: human body model (hbm) standard: jedec standard jesd22 - a114 esd rating: class iv value: passes at 2000 v min. test: charged device model (cdm) standard: jedec standard jesd22 - c101 ms l rating: level 3 at +235 c convection reflow standard: jedec standard j - std - 020 mounting config. notes 1. ground / thermal vias are critical for the proper performance of this device. vias should use a .35mm (#80 / .0135?) diameter drill and have a fin al plated thru diameter of .25 mm (.010?). 2. add as much copper as possible to inner and outer layers near the part to ensure optimal thermal performance. 3. mounting screws can be added near the part to fasten the board to a heatsink. ensure that the gr ound / thermal via region contacts the heatsink. 4. do not put solder mask on the backside of the pc board in the region where the board contacts the heatsink. 5. rf trace width depends upon the pc board material and construction. 6. use 1 oz. copper mi nimum. 7. all dimensions are in millimeters (inches). angles are in degrees. mttf vs. gnd tab temperature 0 1 10 100 60 70 80 90 100 110 120 tab temperature (c) mttf (million hrs)
specifications and information are subject to change without notice. wj communications, inc phone 1 - 800 - wj1 - 4401 fax: 408 - 577 - 6621 e - mail: sales@wj.com web site: www.wj.com september 2004 fp1189 ? - watt hfet product information fp1189 - g (green / lead - free sot - 89 package) mechanical information this package is lead - free/green/rohs - compliant. it is compatible with both lead - free (maximum 260 c reflow te mperature) and leaded (maximum 245 c reflow temperature) soldering processes. the plating material on the leads is nipdau. outline drawing land pattern thermal specifications parameter rating operating case temperature - 40 to +85 c thermal resistance, rth (1) 68 c/w junction temperature, tjc (2) 153 c 1. the thermal resistance is referenced from the hottest part of the junction to the ground tab (pin 4). 2. this corresponds to t he typical drain biasing condition of +8v, 125 ma at an 85 c case temperature. a minimum mttf of 1 million hours is achieved for junction temperatures below 160 c. product marking the fp1189 - g will be marked with an ?fp11g? designator. an alphanumeric lot code (?xxxx - x?) is also marked below the part designator on the top surface of the package. tape and reel specifications for this part are located on the website in the ?application notes? section. msl / esd rating esd rating: class 1b value: pa sses / 500v to <1000v test: human body model (hbm) standard: jedec standard jesd22 - a114 esd rating: class iv value: passes at 2000 v min. test: charged device model (cdm) standard: jedec standard jesd22 - c101 msl rating: level 3 at +260 c convection ref low standard: jedec standard j - std - 020 mounting config. notes 1. ground / thermal vias are critical for the proper performance of this device. vias should use a .35mm (#80 / .0135?) diameter drill and have a final plated thru diameter of .25 mm (.010?). 2. add as much copper as possible to inner and outer layers near the part to ensure optimal thermal performance. 3. mounting screws can be added near the part to fasten the board to a heatsink. ensure that the ground / thermal via region contacts the heat sink. 4. do not put solder mask on the backside of the pc board in the region where the board contacts the heatsink. 5. rf trace width depends upon the pc board material and construction. 6. use 1 oz. copper minimum. 7. all dimensions are in millimeters (inches). angles are in degrees. mttf vs. gnd tab temperature 0 1 10 100 60 70 80 90 100 110 120 tab temperature (c) mttf (million hrs)

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