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may 2006 rev 1 1/15 15 DB-54008L-830 rf power amplifier using 1 x pd54008l n-channel enhancement -mode lateral mosfets general feature excellent thermal stability frequency: 800 - 830mhz supply voltage: 7.2v output power: 7w power gain: 7.9 0.3db efficiency: 56% - 59% load mismatch: 20:1 beo free amplifier description the DB-54008L-830 is a common source n-channel enhancement-mode lateral field effect rf power amplifier designed for wireless data modem applications. order code DB-54008L-830 mechanical specification: l = 60 mm, w = 30 mm www.st.com
contents DB-54008L-830 2/15 contents 1 electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5 test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 circuit layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7 mounting indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 8 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 9 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
DB-54008L-830 electrical data 3/15 1 electrical data 1.1 maximum ratings 2 electrical characteristics t a = +25 o c, v dd = 7.2 v, i dq = 50ma table 1. absolute maximum ratings symbol parameter value unit v dd supply voltage 16 v i d drain current 2.5 a t case operating case temper ature -20 to +85 c t a max. ambient temperature +55 c table 2. electrical specification symbol test conditions min typ max unit freq frequency range 800 830 mhz p out 7w gain @ p out = 8w 7.9 0.3 db nd @ p out = 8w 56 - 59 % h2 2 nd harmonic @ p out = 8w -51 / -54 dbc h3 3 rd harmonic @ p out = 8w -46 / -48 dbc vswr load mismatch all phases @ p out = 8w 20:1
impedance DB-54008L-830 4/15 3 impedance figure 1. impedance graphic table 3. impedance data f(mhz) z gs z dl 800 1.6 - j 1.5 1.9 + j 0.2 810 1.6 - j 1.2 1.9 + j 0.5 820 1.6 - j 1.1 1.7 + j 0.5 830 1.5 - j 0.8 1.96 + j 0.7 z dl z in g d s z gs
DB-54008L-830 typical performance 5/15 4 typical performance figure 2. output power vs input power figure 3. gain & efficiency vs output power figure 4. gain & efficiency vs output power figure 5. gain & efficiency vs output power 0 1 2 3 4 5 6 7 8 9 10 11 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 pin (w) pout (w) 800 815 830 vdd = 7.2v idq = 50m a 0 2 4 6 8 10 12 14 16 01234 56789 output power (w) gain (db) 0 10 20 30 40 50 60 70 80 drain efficiency (%) gain nd freq = 830 mhz vdd = 7.2v idq = 50ma 0 2 4 6 8 10 12 14 16 0123456789 output power (w) gain (db) 0 10 20 30 40 50 60 70 80 drain efficiency (%) gain nd freq = 815 mhz vdd = 7.2v idq = 50m a 0 2 4 6 8 10 12 14 16 0123456789 output power (w) gain (db) 0 10 20 30 40 50 60 70 80 drain efficiency (%) gain nd freq = 800 mhz vdd = 7.2v idq = 50m a
typical performance DB-54008L-830 6/15 figure 8. output power vs drain voltage figure 9. harmonics vs frequency figure 6. power gain & efficiency vs frequency figure 7. input return loss vs frequency 0 2 4 6 8 10 12 14 16 790 800 810 820 830 840 freq (mhz) gain (db) 0 10 20 30 40 50 60 70 80 nd (%) gain nd vdd = 7.2v idq = 50ma pout = 7w -20 -18 -16 -14 -12 -10 -8 -6 -4 -2 0 790 800 810 820 830 840 freq (mhz) input return loss (db) vdd = 7.2v idq = 50ma pout = 7w 0 1 2 3 4 5 6 7 8 9 10 11 12 2 3 4 5 6 7 8 9 10 11 12 13 vdd (v) pout (w) 800 815 830 idq = 50ma pin = 500 m w -70 -60 -50 -40 -30 -20 790 800 810 820 830 840 freq (mhz) harmonics level (db) h2 h3 vdd = 7.2v idq = 50ma pout = 7w
DB-54008L-830 test circuit 7/15 5 test circuit table 4. test circuit schematic + c9 c10 c8 c6 tl1 tl2 rfin l2 c12 tl7 tl6 tl5 tl4 tl3 c14 c7 rfout c13 c3 c4 c5 b2 c2 vcc 2 - 1 + l3 l1 r1 c1 c11 fr4 msu b h=60 mil msub r2 r3 d1 pd54008l ldmos b1 table 5. component part list component id description value case size manufacturer part code c4 capacitor 10nf 1206 murata grm42-6x7r104k50 c3 capacitor 1nf 1206 murata grm42-6c0g102j50 c1 capacitor 120pf 1206 murata grm42-6c0g121j50 c2 capacitor 120pf 1206 murata grm42-6c0g121j50 c6 capacitor 51pf 100b atc 510 c7 capacitor 51pf 100b atc 510 c9 capacitor 1.1pf 100b atc 1r1 c10 capacitor 3.6pf 100b atc 3r6 c11 capacitor 15pf 100b atc 150 c12 capacitor 18pf 100b atc 180 c13 capacitor 15pf 100b atc 150 c8 variable capacitor 0.8 -:- 8pf johnson 27293 c14 variable capacitor 0.8 -:- 8pf johnson 27293
test circuit DB-54008L-830 8/15 component id description value case size manufacturer part code c5 capacitor 10 uf smt panasonic eevhb1v100p b2 ferrite bead panasonic exceldrc35c b1 ferrite bead panasonic exceldrc35c l1 inductor 8nh coilcraft a03t mini spring l2 inductor 3.85nh coilcraft 0906-4 micro spring l3 inductor 1.65nh coilcraft 0906-2 micro spring pd54008l ldmos stmicroelectronics pd54008l r2 potentiometer 10k bourns electronics 3214w-1-103e r3 resistor 1k 1206 tyco electronics 01623440-1 r1 resistor 680 1206 tyco electronics rf in sma-conn johnson 142-0701-801 rf out sma-conn johnson 142-0701-801 tl1 transmission line w=2.87mm ; l=8.6mm tl2 transmission line w=2.87mm ; l= 6.3mm tl3 transmission line w=2.87mm ; l=2.8mm tl4 transmission line w=4.9mm ; l=8mm tl5 transmission line w=4.9mm ; l=5.86mm tl6 transmission line w=4.9mm ; l=10.9mm tl7 transmission line w=2.87mm ; l=7.5mm d1 zener diode 5.1 v sod110 philips bzx284c5v1 fr-4 thk=0.060" 2oz cu both sides table 5. component part list
DB-54008L-830 circuit layout 9/15 6 circuit layout figure 10. test fixture component layout figure 11. test circuit photomaster
mounting indications DB-54008L-830 10/15 7 mounting indications figure 12. standard smd mounting
DB-54008L-830 package mechanical data 11/15 8 package mechanical data in order to meet environmental requirements, st offers these devices in ecopack? packages. these packages have a lead-free second level interconnect . the category of second level interconnect is marked on the package and on the inner box label, in compliance with jedec standard jesd97. the maximum ratings related to soldering conditions are also marked on the inner box label. ecopack is an st trademark. ecopack specifications are available at: www.st.com
package mechanical data DB-54008L-830 12/15 table 6. powerflat? mechanical data dim. mm inch min. typ. max. min. typ. max. a 0.90 1.00 0.035 0.039 a1 0.02 0.05 0.001 0.002 a3 0.24 0.009 aa 0.15 0.25 0.35 0.006 0.01 0.014 b 0.43 0.51 0.58 0.017 0.020 0.023 c 0.64 0.71 0.79 0.025 0.028 0.031 d 5.00 0.197 d 0.30 0.011 e 5.00 0.197 e2 2.49 2.57 2.64 0.098 0.101 0.104 e 1.27 0.050 f 3.37 0.132 g 0.74 0.03 h 0.21 0.008 figure 13. powerflat? package dimensions
DB-54008L-830 package mechanical data 13/15 table 7. powerflat? tape & reel dimensions dim. mm. inch min. typ max. min. typ max. ao 5.15 5.25 5.35 0.12 0.13 0.13 bo 5.15 5.25 5.35 0.12 0.13 0.13 ko 1.0 1.1 1.2 0.02 0.02 0.02 figure 14. powerflat? tape & reel
revision history DB-54008L-830 14/15 9 revision history table 8. revision history date revision changes 19-may-2006 1 initial release
DB-54008L-830 15/15 please read carefully: information in this document is provided solely in connection with st products. stmicroelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described he rein at any time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a parti cular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. unless expressly approved in writing by an authorize representative of st, st products are not designed, authorized or warranted for use in military, air craft, space, life saving, or life sustaining applications, nor in products or systems, where failure or malfunction may result in personal injury, death, or severe property or environmental damage. resale of st products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or registered trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2006 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com

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