TC3938 rev2_20070503 transcom, inc., 90 dasoong 7 th road, tainan science-based industrial park, hsin-she shiang, tainan county, taiwan, r.o.c. web-site: www.transcominc.com.tw phone: 886-6-5050086 fax: 886-6-5051602 p 1 / 3 packaged single-bias medium power phemt gaas fets features 1.0 db typical noise figure at 12 ghz photo enlargement high associated gain: ga = 8 db typical at 12 ghz 24dbm typical power at 12 ghz 9 db typical linear power gain at 12 ghz lg = 0.25 m, wg = 600 m 100 % dc tested micro-x metal ceramic package description the TC3938 is a single-bias medium power ceramic micro-x packaged device with tc1304 phemt gaas fets, which is designed to provide the single power supply application. the device is suitable for oscillator, medium power amplifier in a wide range of commercial applications. all devices are 100% dc tested to assure consistent quality. electrical specifications (t a =25 c) symbol conditions min typ max unit nf noise figure at v ds = 5 v, f = 12ghz 1.0 1.5 db g a associated gain at v ds = 5 v, f = 12ghz 7 8 db p 1db output power at 1db gain compression point, f = 12ghz v ds = 5 v 23 24 dbm g l linear power gain, f = 12ghz v ds = 5 v 7.5 9 db i ds drain-source current at v ds = 5 v 100 ma r th thermal resistance 65 c/w absolute maximum ratings (t a =25 c) handling precautions: symbol parameter rating v ds drain-source voltage 7.0 v p in rf input power, cw 24 dbm p t continuous dissipation 600 mw t ch channel temperature 175 c t stg storage temperature -65 c to +175 c the user must operate in a clean, dry environment. electrostatic discharge (esd) precautions should be observed at all stages of storage, handling, assembly, and testing. the static discharge must be less than 300v.
TC3938 rev2_20070503 transcom, inc., 90 dasoong 7 th road, tainan science-based industrial park, hsin-she shiang, tainan county, taiwan, r.o.c. web-site: www.transcominc.com.tw phone: 886-6-5050086 fax: 886-6-5051602 p 2 / 3 typical scattering parameters (t a =25 c) v ds = 5 v 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 swp max 18ghz swp min 2ghz s11 0 15 30 45 60 75 90 105 120 135 150 165 -180 -165 -150 -135 -120 -105 -90 -75 -60 -45 -30 -15 swp max 18 ghz swp min 2 ghz mag max 0.2 0.05 per div s12 0 15 30 45 60 75 90 105 120 135 150 165 -180 -165 -150 -135 -120 -105 -90 -75 -60 -45 -30 -15 swp max 18 ghz swp min 2 ghz mag max 15 5 per div s21 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 swp max 18ghz swp min 2ghz s22 frequency s11 s21 s12 s22 (ghz) mag ang mag ang mag ang mag ang 2 0.9899 -94.49 10.0886 119.50 0.0700 26.92 0.4661 -84.14 3 0.8248 -132.76 7.9964 87.63 0.0719 14.36 0.3077 -113.14 4 0.7094 -159.33 6.3675 65.63 0.0734 9.99 0.2125 -130.99 5 0.6433 178.81 5.2844 47.81 0.0804 5.95 0.1541 -148.68 6 0.6088 159.19 4.5319 32.28 0.0878 2.90 0.1221 -170.82 7 0.5983 137.96 3.9849 14.58 0.0959 -6.42 0.1029 154.53 8 0.6083 120.43 3.5482 0.68 0.1040 -13.59 0.1188 122.04 9 0.6310 101.29 3.1807 -15.18 0.1073 -22.99 0.1560 94.13 10 0.6684 79.82 2.8945 -31.62 0.1151 -33.31 0.2201 82.28 11 0.7080 62.52 2.6062 -46.80 0.1150 -44.60 0.2815 69.66 12 0.7424 45.99 2.3325 -61.83 0.1137 -55.33 0.3533 59.04 13 0.7726 31.82 2.0896 -77.07 0.1117 -66.93 0.4023 46.88 14 0.8012 17.78 1.8510 -91.82 0.1079 -76.66 0.4351 36.43 15 0.8184 5.23 1.6631 -105.62 0.1056 -87.30 0.4492 26.42 16 0.8211 -5.34 1.5084 -119.26 0.1104 -100.70 0.4559 16.03 17 0.8301 -14.03 1.4072 -131.18 0.1153 -108.69 0.4420 7.60 18 0.8276 -21.90 1.3512 -142.98 0.1279 -122.32 0.4200 0.54
TC3938 rev2_20070503 transcom, inc., 90 dasoong 7 th road, tainan science-based industrial park, hsin-she shiang, tainan county, taiwan, r.o.c. web-site: www.transcominc.com.tw phone: 886-6-5050086 fax: 886-6-5051602 p 3 / 3 outline dimensions (in inch) tape & reel package orientation (in mm) 4.0 section a-a 12.0 +/- 0.3 5.5 +/- 0.05 a a ao = 7.0 mm a1 = 1.45 mm bo = 7.0 mm b1 = 0.9 mm ko = 2.0 mm 0.5 +0.1/-0.0 1.75 0.30 +/- 0.05 ko 2.0 +/- 0.05 ao bo 8.0 a1 0.5 min. standard reel size 7? standard reel quantity 1000
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