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ADA-4643 silicon bipolar darlington amplifi er data sheet attention: observe precautions for handling electrostatic sensitive devices. esd machine model (class a) esd human body mode (class 1b) refer to avago application note a004r: electrostatic discharge, damage and control. rfin 2tx gnd rfout & vd gnd description avago technologies ADA-4643 is an economical, easy-to- use, general purpose silicon bipolar rfic gain block am- plifi ers housed in a 4-lead sc-70 (sot-343) surface mount plastic package which requires only half the board space of a sot-143 package. the darlington feedback structure provides inherent broad bandwidth performance, resulting in useful ope- rating frequency up to 2.5 ghz. this is an ideal device for small-signal gain cascades or if amplifi cation. ADA-4643 is fabricated using avagos hp25 silicon bipolar process, which employs a double-diff used single poly- silicon process with self-aligned submicron emitter geometry. the process is capable of simultaneous high f t and high npn breakdown (25 ghz f t at 6 v bvceo). the process utilizes industry standard device oxide isolation technologies and submicron aluminum multilayer inter- connect to achieve superior performance, high uniformity, and proven reliability. surface mount package sot-343 pin connections and package marking note: top view. package marking provides orientation and identifi cation. 2t = device code x = date code character identifi es month of manufacture. c block c block c bypass r c v cc = 5 v v d = 3.5 v rfc rf input rf output 2tx r c = v cc C v d i d features ??? small signal gain amplifi er ??? operating frequency dc C 2.5 ghz ??? unconditionally stable ??? 50 ohms input & output ??? flat, broadband frequency response up to 1 ghz ??? operating current: 20 to 60 ma ??? industry standard sot-343 package ??? lead-free option available specifi cations 900 mhz, 3.5 v, 35 ma (typ.) ??? 17 db associated gain ??? 13.4 dbm p 1db ??? 28.3 dbm oip 3 ??? 4 db noise fi gure ??? vswr < 2.2 throughput operating frequency ??? single supply, typical i d = 35 ma applications ??? cellular/pcs/wll base stations ??? wireless data/wlan ??? fiber-optic systems ??? ism typical biasing confi guration
2 ADA-4643 electrical specifi cations t a = 25 c, zo = 50 ? , pin = -25 dbm, i d = 35 ma (unless specifi ed otherwise) symbol parameter and test condition: i d = 35 ma, zo = 50 ? frequency units min. typ. max. std. dev. v d device voltage i d = 35 ma v 3.2 3.5 3.9 gp power gain (|s 21 |) 2 100 mhz 900 mhz [1,2] db 15.5 17.5 17.0 18.5 ? gp gain flatness 100 to 900 mhz 0.1 to 2 ghz db 0.5 1.8 f 3db 3 db bandwidth ghz 3.2 vswr in input voltage standing wave ratio 0.1 to 6 ghz 2.0:1 vswr out output voltage standing wave ratio 0.1 to 6 ghz 1.6:1 nf 50 ? noise figure 100 mhz 900 mhz [1,2] db 3.9 4.0 0.07 0.1 p 1db output power at 1db gain compression 100 mhz 900 mhz [1,2] dbm 14.7 13.4 oip 3 output 3 rd order intercept point 100 mhz [3] 900 mhz [1,2] dbm 29.0 28.3 dv/dt device voltage temperature coeffi cient mv/c -5.3 notes: 1. typical value determined from a sample size of 500 parts from 3 wafers. 2. measurement obtained using production test board described in the block diagram below. 3. i) 900 mhz oip 3 test condition: f1 = 900 mhz, f2 = 905 mhz and pin = -25 dbm per tone. ii) 100 mhz oip 3 test condition: f1 = 100 mhz, f2 = 105 mhz and pin = -25 dbm per tone. ADA-4643 absolute maximum ratings [1] symbol parameter units absolute maximum i d device current ma 70 p diss total power dissipation [2] mw 270 p in max. rf input power dbm 18 t j channel temperature ? c 150 t stg storage temperature ? c -65 to 150 ? jc thermal resistance [3] ? c/w 152 notes: 1. operation of this device above any one of these parameters may cause permanent damage. 2. ground lead temperature is 25 c. derate 6.6 mw/c for tl >109 c. 3. junction-to-case thermal resistance measured using 150 c liquid crystal measurement method. block diagram of 900 mhz production test board used for v d , gain, p 1db , oip 3 , and nf measurements. circuit losses have been de-embedded from actual measurements. input 50 ohm transmission (0.5 db loss) dut 50 ohm transmission including bias (0.5 db loss) output
3 product consistency distribution charts at 900 mhz, i d = 35 ma gain (db) 15 19 16 17 18 300 250 200 150 100 50 0 v d (v) 34 3.2 3.4 3.6 3.8 300 250 200 150 100 50 0 figure 1. gain distribution @ 35 ma. lsl = 15.5, nominal = 17, usl = 18.5 figure 2. v d distribution @ 35 ma. lsl = 3.2, nominal = 3.5, usl = 3.9 notes: 1. statistics distribution determined from a sample size of 500 parts taken from 3 diff erent wafers. 2. future wafers allocated to this product may have typical values anywhere between the minimum and maximum specifi cation limits.
4 ADA-4643 typical performance curves (at 25 c, unless specifi ed otherwise) figure 3. gain vs. frequency at i d = 35 ma. figure 4. p 1db vs. frequency at i d = 35 ma. figure 5. oip 3 vs. frequency at i d = 35 ma. figure 6. nf vs. frequency at i d = 35 ma. figure 7. id vs. v d and temperature. figure 8. gain vs. i d and temperature at 900 mhz. frequency (ghz) gain (db) 06 2 13 5 4 20 15 10 5 0 frequency (ghz) p 1db (dbm) 06 2 13 5 4 20 15 10 5 0 frequency (ghz) oip 3 (dbm) 06 2 13 5 4 30 25 20 15 10 5 frequency (ghz) 06 2 13 5 4 nf (db) 6 5 4 3 2 -40 c 25 c 85 c v d (v) i d (ma) 05 2 134 70 60 50 40 30 20 10 0 i d (ma) gain (db) 070 20 10 30 40 50 60 18 17 16 15 14 13 12 -40 c 25 c 85 c
5 ADA-4643 typical performance curves (at 25 c, unless specifi ed otherwise), continued figure 9. p 1db vs. i d and temperature at 900 mhz. figure 10. oip 3 vs. i d and temperature at 900 mhz. figure 11. nf vs. i d and temperature at 900 mhz. figure 12. gain vs. i d and frequency (ghz). figure 13. p 1db vs. i d and frequency (ghz). figure 14. oip 3 vs. i d and frequency (ghz). i d (ma) oip 3 (dbm) 0.1 0.5 0.9 1.5 2.0 2.5 3 4 5 6 0.1 0.5 0.9 2.0 2.5 3 4 5 6 070 20 10 30 40 50 60 40 35 30 25 20 15 10 5 0.5 0.9 1.5 2.5 3 4 6 i d (ma) p 1db (dbm) 070 20 10 30 40 50 60 20 15 10 5 0 -5 -10 -40 c 25 c 85 c -40 c 25 c 85 c i d (ma) oip 3 (dbm) 070 20 10 30 40 50 60 35 30 25 20 15 10 5 -40 c 25 c 85 c i d (ma) nf (db) 070 20 10 30 40 50 60 16 5 4 3 2 1 0 i d (ma) gain (db) 040 20 10 30 30 30 30 20 18 16 14 12 10 8 i d (ma) p 1db (dbm) 070 20 10 30 40 50 60 25 20 15 10 5 0 -5 -10 1.5 0.1 2.0 5
6 ADA-4643 typical performance curves (at 25 c, unless specifi ed otherwise), continued figure 15. nf vs. i d and frequency (ghz). figure 16. input return loss vs. i d and frequency (ghz). figure 17. output return loss vs. i d and frequency (ghz). 0.1 0.5 0.9 1.5 2.5 3 4 5 6 i d (ma) nf (db) 070 20 10 30 40 50 60 6 5.5 5 4.5 4 3.5 3 2.0 frequency (ghz) irl (db) 0 -5 -10 -15 -20 012 4 2610 8 frequency (ghz) orl (db) 012 4 26 10 8 0 -5 -10 -15 -20 -25 i d = 27 ma i d = 35 ma i d = 45 ma i d = 60 ma i d = 27 ma i d = 35 ma i d = 45 ma i d = 60 ma
7 ADA-4643 typical scattering parameters, t a = 25 c, i d = 27 ma freq. ghz s 11 s 21 s 12 s 22 k mag. ang. db mag. ang. mag. ang. mag. ang. 0.1 0.172 1.1 17.2 7.246 175.9 0.093 -0.8 0.245 -4.1 1.1 0.5 0.202 10 17.04 7.113 160.2 0.091 -4.5 0.245 -12.6 1.1 0.9 0.277 12.3 16.67 6.814 144.7 0.088 -7.4 0.269 -20.4 1.1 1.0 0.286 9.9 16.56 6.726 141.1 0.087 -7.9 0.274 -23.1 1.1 1.5 0.349 -2.8 15.98 6.292 124.2 0.083 -9.3 0.28 -37.6 1.1 1.9 0.375 -11.3 15.54 5.984 111.4 0.080 -9.5 0.273 -48.9 1.2 2.0 0.382 -13.8 15.44 5.918 108.3 0.080 -9.5 0.271 -51.7 1.2 2.5 0.397 -24.2 14.93 5.581 93.2 0.078 -8.9 0.249 -65.8 1.2 3.0 0.402 -34.7 14.47 5.29 78.6 0.078 -7.8 0.22 -81.7 1.3 3.5 0.394 -46 14.02 5.021 64.2 0.079 -6.6 0.192 -100.9 1.3 4.0 0.378 -58.7 13.58 4.775 50 0.082 -5.4 0.176 -123.8 1.3 4.5 0.361 -73.1 13.16 4.55 35.9 0.087 -4.6 0.179 -148.6 1.3 5.0 0.340 -89.3 12.64 4.284 21.9 0.094 -4.9 0.191 -169.9 1.3 5.5 0.328 -107.1 12.15 4.05 8.3 0.102 -5.9 0.212 173.3 1.2 6.0 0.318 -124.8 11.6 3.803 -5.4 0.112 -8.3 0.233 158.2 1.2 6.5 0.299 -141.1 11.09 3.584 -18.6 0.124 -11.5 0.25 141.6 1.1 7.0 0.274 -159.7 10.56 3.371 -32 0.138 -16.5 0.27 123 1.1 7.5 0.243 177.3 9.96 3.149 -45.6 0.150 -22.8 0.3 103.6 1.1 8.0 0.222 148.7 9.29 2.914 -59.1 0.161 -30 0.337 84.8 1.1 8.5 0.226 119.9 8.41 2.632 -71.8 0.168 -36.7 0.381 70.1 1.1 9.0 0.26 95.4 7.62 2.406 -83.7 0.177 -43 0.429 58.4 1.1 9.5 0.305 75.2 6.67 2.155 -96.1 0.187 -49.9 0.481 48.4 1.1 10.0 0.356 60.1 5.82 1.954 -107.1 0.195 -57.3 0.529 39.7 1 notes: 1. s-parameters are measured on a microstrip line made on 0.025 inch thick alumina carrier. the input reference plane is at th e end of the input lead. the output reference plane is at the end of the output lead.
8 ADA-4643 typical scattering parameters, t a = 25 c, i d = 35 ma freq. ghz s 11 s 21 s 12 s 22 k mag. ang. db mag. ang. mag. ang. mag. ang. 0.1 0.151 1.6 17.51 7.504 175.9 0.091 -0.8 0.223 -4.1 1.1 0.5 0.185 13.1 17.35 7.367 160.1 0.09 -4.2 0.224 -11.7 1.1 0.9 0.265 14.9 16.98 7.06 144.6 0.087 -7 0.251 -19 1.1 1.0 0.272 12.4 16.86 6.97 140.9 0.086 -7.5 0.256 -21.7 1.1 1.5 0.340 -0.7 16.27 6.511 123.9 0.082 -8.8 0.264 -36.2 1.1 1.9 0.367 -9.5 15.82 6.178 111 0.080 -9.1 0.259 -47.6 1.2 2.0 0.373 -12.1 15.72 6.107 108 0.079 -9.1 0.256 -50.3 1.2 2.5 0.39 -22.7 15.19 5.745 92.8 0.078 -8.5 0.236 -64.4 1.2 3.0 0.395 -33 14.71 5.436 78.3 0.077 -7.3 0.209 -80.4 1.3 3.5 0.387 -44.3 14.23 5.149 63.9 0.079 -6 0.181 -99.9 1.3 4.0 0.370 -57.4 13.79 4.89 49.9 0.082 -4.8 0.166 -123.4 1.3 4.5 0.353 -71.6 13.36 4.657 35.9 0.087 -3.9 0.17 -148.9 1.3 5.0 0.332 -87.7 12.84 4.383 21.9 0.093 -4.2 0.185 -170.6 1.2 5.5 0.319 -106 12.34 4.141 8.3 0.102 -5.1 0.207 172.5 1.2 6.0 0.310 -123.6 11.8 3.889 -5.4 0.112 -7.5 0.23 157.5 1.2 6.5 0.293 -140.2 11.28 3.666 -18.6 0.124 -10.8 0.248 140.9 1.1 7.0 0.266 -158.8 10.75 3.449 -32 0.138 -15.8 0.27 122.3 1.1 7.5 0.238 177.8 10.15 3.219 -45.5 0.151 -22.2 0.301 103 1.1 8.0 0.217 148.5 9.48 2.979 -59 0.161 -29.3 0.34 84.3 1.1 8.5 0.222 119.5 8.62 2.697 -71.7 0.169 -36.1 0.385 69.6 1.1 9.0 0.256 95 7.81 2.458 -83.4 0.178 -42.5 0.434 57.9 1.1 9.5 0.300 74.9 6.88 2.208 -95.8 0.188 -49.5 0.486 47.9 1 10.0 0.357 59.1 6.01 1.996 -107.2 0.196 -56.9 0.534 39.2 1 notes: 1. s-parameters are measured on a microstrip line made on 0.025 inch thick alumina carrier. the input reference plane is at th e end of the input lead. the output reference plane is at the end of the output lead.
9 ADA-4643 typical scattering parameters, t a = 25 c, i d = 45 ma freq. ghz s 11 s 21 s 12 s 22 k mag. ang. db mag. ang. mag. ang. mag. ang. 0.1 0.137 2.4 17.72 7.691 175.9 0.09 -0.7 0.207 -4 1.1 0.5 0.174 15.3 17.56 7.547 160 0.089 -4 0.209 -10.9 1.1 0.9 0.257 17.4 17.19 7.234 144.5 0.086 -6.8 0.238 -17.6 1.1 1.0 0.267 14.7 17.08 7.144 140.8 0.085 -7.2 0.243 -20.3 1.1 1.5 0.334 0.7 16.47 6.664 123.7 0.081 -8.5 0.253 -34.8 1.1 1.9 0.36 -8.4 16.01 6.317 110.7 0.079 -8.7 0.249 -46.1 1.1 2.0 0.367 -10.9 15.91 6.241 107.7 0.079 -8.7 0.247 -48.9 1.2 2.5 0.386 -21.6 15.36 5.862 92.5 0.077 -8.1 0.227 -62.9 1.2 3.0 0.39 -32.1 14.86 5.534 78 0.077 -7 0.201 -78.9 1.2 3.5 0.382 -43.4 14.38 5.237 63.6 0.078 -5.7 0.174 -98.4 1.3 4.0 0.365 -56.4 13.93 4.971 49.7 0.081 -4.5 0.159 -122.3 1.3 4.5 0.348 -70.8 13.5 4.732 35.7 0.086 -3.6 0.164 -148.3 1.3 5.0 0.327 -86.8 12.97 4.45 21.7 0.093 -3.9 0.179 -170.4 1.2 5.5 0.314 -105.1 12.48 4.205 8.2 0.101 -4.8 0.202 172.6 1.2 6.0 0.304 -122.8 11.93 3.947 -5.5 0.112 -7.1 0.226 157.6 1.2 6.5 0.287 -139.6 11.41 3.721 -18.7 0.124 -10.4 0.245 140.9 1.1 7.0 0.26 -159.1 10.88 3.498 -32 0.138 -15.4 0.268 122.3 1.1 7.5 0.232 177.6 10.28 3.264 -45.6 0.151 -21.8 0.3 102.9 1.1 8.0 0.213 147.8 9.6 3.02 -59.1 0.161 -28.9 0.339 84.2 1.1 8.5 0.218 120.2 8.7 2.724 -71.7 0.169 -35.8 0.385 69.5 1.1 9.0 0.26 94.2 7.95 2.498 -83.7 0.179 -42.1 0.434 57.9 1.1 9.5 0.303 74 6.98 2.233 -96.2 0.189 -49.2 0.487 47.9 1 10.0 0.352 59.4 6.14 2.027 -107.1 0.196 -56.6 0.535 39.1 1 notes: 1. s-parameters are measured on a microstrip line made on 0.025 inch thick alumina carrier. the input reference plane is at th e end of the input lead. the output reference plane is at the end of the output lead.
10 ADA-4643 typical scattering parameters, t a = 25 c, i d = 60 ma freq. ghz s 11 s 21 s 12 s 22 k mag. ang. db mag. ang. mag. ang. mag. ang. 0.1 0.126 2.4 17.88 7.834 175.9 0.089 -0.7 0.194 -3.8 1.1 0.5 0.165 18.1 17.73 7.696 159.9 0.088 -3.8 0.196 -9.9 1.1 0.9 0.252 19.6 17.36 7.377 144.3 0.085 -6.4 0.227 -16.1 1.1 1.0 0.261 16.4 17.24 7.28 140.6 0.085 -6.9 0.233 -18.8 1.1 1.5 0.33 2 16.63 6.787 123.3 0.081 -8.2 0.244 -33.2 1.1 1.9 0.359 -7.4 16.16 6.424 110.3 0.079 -8.4 0.241 -44.4 1.1 2.0 0.365 -9.8 16.05 6.343 107.2 0.078 -8.4 0.239 -47.2 1.1 2.5 0.386 -21 15.49 5.948 91.9 0.077 -7.8 0.221 -61 1.2 3.0 0.387 -31.5 14.98 5.61 77.4 0.077 -6.7 0.195 -76.8 1.2 3.5 0.381 -43 14.49 5.301 63.1 0.078 -5.5 0.168 -96.2 1.3 4.0 0.363 -56 14.02 5.025 49 0.081 -4.3 0.153 -120.3 1.3 4.5 0.344 -70.7 13.58 4.777 35 0.086 -3.5 0.157 -146.9 1.3 5.0 0.323 -87.3 13.04 4.488 21 0.093 -3.7 0.172 -169.4 1.2 5.5 0.31 -105.8 12.54 4.235 7.5 0.101 -4.6 0.195 173.4 1.2 6.0 0.301 -123.6 11.98 3.971 -6.2 0.111 -6.9 0.22 158.2 1.2 6.5 0.281 -140.6 11.44 3.735 -19.4 0.124 -10.2 0.239 141.4 1.1 7.0 0.257 -159.9 10.9 3.507 -32.7 0.138 -15.2 0.262 122.5 1.1 7.5 0.228 176.3 10.29 3.271 -46.3 0.151 -21.5 0.294 103 1.1 8.0 0.212 145.6 9.61 3.022 -59.8 0.161 -28.6 0.333 84.3 1.1 8.5 0.218 117.8 8.72 2.728 -72.4 0.169 -35.6 0.38 69.5 1.1 9.0 0.257 92.7 7.94 2.494 -84.1 0.178 -41.8 0.429 57.9 1.1 9.5 0.302 72.9 6.98 2.234 -96.4 0.189 -48.9 0.482 47.9 1 10.0 0.359 57.7 6.11 2.02 -107.7 0.196 -56.4 0.531 39.2 1 notes: 1. s-parameters are measured on a microstrip line made on 0.025 inch thick alumina carrier. the input reference plane is at th e end of the input lead. the output reference plane is at the end of the output lead.
11 ordering information part number no. of devices container ADA-4643-tr1 3000 7 reel ADA-4643-tr2 10000 13 reel ADA-4643-blk 100 antistatic bag ADA-4643-tr1g 3000 7 reel ADA-4643-tr2g 10000 13 reel ADA-4643-blkg 100 antistatic bag note: for lead-free option, the part number will have the character g at the end. package dimensions outline 43 sot-343 (sc70 4-lead) recommended pcb pad layout for avagos sc70 4l/sot-343 products he d a2 a1 b b1 e 1.30 (.051) bsc 1.15 (.045) bsc c l a dimensions (mm) min. 1.15 1.85 1.80 0.80 0.80 0.00 0.15 0.55 0.10 0.10 max. 1.35 2.25 2.40 1.10 1.00 0.10 0.40 0.70 0.20 0.46 symbol e d he a a2 a1 b b1 c l notes: 1. all dimensions are in mm. 2. dimensions are inclusive of plating. 3. dimensions are exclusive of mold flash & metal burr. 4. all specifications comply to eiaj sc70. 5. die is facing up for mold and facing down for trim/form, ie: reverse trim/form. 6. package surface to be mirror finish. 1.30 (0.051) 0.60 (0.024) 0.9 (0.035) dimensions in mm (inches) 1.15 (0.045) 2.00 (0.079) 1.00 (0.039)
for product information and a complete list of distributors, please go to our web site: www.avagotech.com avago, avago technologies, and the a logo are trademarks of avago technologies in the united states and other countries. data subject to change. copyright ? 2005-2012 avago technologies. all rights reserved. obsoletes 5989-3753en av02-3598en - june 8, 2012 p p 0 p 2 f w c d 1 d e a 0 10 max. t 1 (carrier tape thickness) t t (cover tape thickness) 10 max. b 0 k 0 description symbol size (mm) size (inches) length width depth pitch bottom hole diameter a 0 b 0 k 0 p d 1 2.40 0.10 2.40 0.10 1.20 0.10 4.00 0.10 1.00 + 0.25 0.094 0.004 0.094 0.004 0.047 0.004 0.157 0.004 0.039 + 0.010 cavity diameter pitch position d p 0 e 1.50 0.10 4.00 0.10 1.75 0.10 0.061 + 0.002 0.157 0.004 0.069 0.004 perforation width thickness w t 1 8.00 + 0.30 - 0.10 0.254 0.02 0.315 + 0.012 0.0100 0.0008 carrier tape cavity to perforation (width direction) cavity to perforation (length direction) f p 2 3.50 0.05 2.00 0.05 0.138 0.002 0.079 0.002 distance width tape thickness c t t 5.40 0.10 0.062 0.001 0.205 + 0.004 0.0025 0.0004 cover tape device orientation tape dimensions for outline 4t user feed direction cover tape carrier tape reel end view 8 mm 4 mm top view

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