triquint semiconductor texas : (972)994 8465 fax (972)994 8504 web: www.triquint.com product data sheet july 7, 2007 1 catv ultra-linear power amp TGA2801D-SG key features ? ultra-low distortion (52dbm ip3 typ.) ? high power compression (p1db 31.5 dbm typ.) ? flat gain ? wide bandwidth (40mhz - 1ghz) ? low dc power consumption ? single supply bias (+12v) ? proven gaas technology description the triquint TGA2801D-SG is an ultra-linear, packaged power amplifier which operates from 40mhz to 1000mhz. the amplifier is packaged in a standard 16 lead soic package. the amplifier provides a flat gain along with ultra-low distortion. it also provides a high output power with a low dc power consumption. this amplifier is ideally suited for use in catv distribution systems or other applications requiring high output powers and extremely low distortion. tga2801d compression 13.5 db tilt to 870 mhz: 79 ch, qam to 870 mhz with 6 db offset, 550ma -90 -80 -70 -60 -50 -40 46 48 50 52 54 56 58 60 62 64 equiv output @ 870 mhz, (dbmv/ch) distortion (dbc) xmod ctb gain in a typical circuit w/external balun effects removed 9 10 11 12 13 14 0 200 400 600 800 1000 frequency (mhz) s21 (db) primary applications ? hfc nodes ? catv line amplifiers ? head end equipment evaluation boards are available upon request. rohs & lead-free compliant tga2801d compression flat to 870 mhz: 110 ch, no qam, 550ma -90 -80 -70 -60 -50 -40 46 48 50 52 54 56 58 60 62 64 equiv output @ 870 mhz, (dbmv/ch) distortion (dbc) xmod ctb
triquint semiconductor texas : (972)994 8465 fax (972)994 8504 web: www.triquint.com product data sheet july 7, 2007 2 TGA2801D-SG dc specifications symbol parameter typ unit v dd bias supply voltage 12 v i dd bias supply current 540 ma v g1 gate 1 voltage (pin 7) 0.68 v v g2 gate 2 voltage (pin 2) 4.15 v v out1 rf output 1 voltage (pin 14) v dd v v out2 rf output 2 voltage (pin 11) v dd v maximum ratings 1 / symbol parameter min max units notes v dd bias supply voltage 0 15 v i dd bias supply current 615 ma p in rf input power 70 dbmv t assy assembly temperature (30 seconds max) 260 c t stg storage temperature -65 150 c t case package operating temperature (heat slug) -40 120 c 1 / these values reflect maximum operable values for this device. operating above the recommended values may directly affect median lifetime, t m . thermal information parameter test conditions t ch ( c) jc ( c/w) t m (hrs) jc thermal resistance (channel to backside of package) v dd = 12v i dd = 540ma p diss = 6.48w t base = 85 c 139 8.3 5e8
triquint semiconductor texas : (972)994 8465 fax (972)994 8504 web: www.triquint.com product data sheet july 7, 2007 3 rf specifications t a =25 c, v dd =12v symbol parameter min typ max units bw bandwidth 40 1000 mhz s 21 gain 1 / 10 12 db gf gain flatness 1 / 0.3 db nf noise figure 2.75 db p 1db 1db gain compression 29 31.5 dbm ip 3 two-tone, third-order intercept (750mhz) 44 52 dbm ctb composite triple beat distortion 2 / -80 dbc cso composite second order distortion 2 / -72 dbc xmod cross modulation 2 / -73 dbc irl input return loss 1 / 3 / 22 db orl output return loss 1 / 3 / 22 db i d drain current 4 / 540 600 ma 1 / measured performance of chip alone. balun effects have been removed. 2 / 112-channel flat, +44dbmv/channel output 3 / using application circuit on last page 4 / increasing drain current will improve linearity of device TGA2801D-SG
triquint semiconductor texas : (972)994 8465 fax (972)994 8504 web: www.triquint.com product data sheet july 7, 2007 4 typical measured s-parameters using application circuit (includes effects of external baluns) -25 -20 -15 -10 -5 0 0 200 400 600 800 1000 frequency (mhz) s12 (db) 9 10 11 12 13 14 0 200 400 600 800 1000 frequency (mhz) s21 (db) TGA2801D-SG
triquint semiconductor texas : (972)994 8465 fax (972)994 8504 web: www.triquint.com product data sheet july 7, 2007 5 typical measured s-parameters using application circuit (includes effects of external baluns) -50 -40 -30 -20 -10 0 0 200 400 600 800 1000 frequency (mhz) s11 (db) -50 -40 -30 -20 -10 0 0 200 400 600 800 1000 frequency (mhz) s22 (db) TGA2801D-SG
triquint semiconductor texas : (972)994 8465 fax (972)994 8504 web: www.triquint.com product data sheet july 7, 2007 6 typical measured performance using application circuit (includes effects of external baluns) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 0 100 200 300 400 500 600 700 800 900 1000 frequency (mhz) nf (db) TGA2801D-SG
triquint semiconductor texas : (972)994 8465 fax (972)994 8504 web: www.triquint.com product data sheet july 7, 2007 7 lci pa - 2001 11 6 15 14 13 11 10 9 8 7 6 5 4 3 2 12 0.296 0.406 heat slug 0.234 0.184 0.087 0.056 0.050 0.016 0.407 0.002 0.094 mechanical specifications tga2801d TGA2801D-SG bottom view
triquint semiconductor texas : (972)994 8465 fax (972)994 8504 web: www.triquint.com product data sheet july 7, 2007 8 lci pa - 2001 11 6 15 14 13 11 10 9 8 7 6 5 4 3 2 12 0.296 0.406 tga2801d pinout pin description pin description 1gnd 2 gate 2: open circuit on pc board 3 rf input 1 4gnd 5gnd 6 rf input 2 7 gate 1: current adjust r 1 = open circuit 8gnd 9gnd 10 v dd 11 rf output 2 12 gnd 13 gnd 14 rf output 1 15 v dd 16 gnd TGA2801D-SG
triquint semiconductor texas : (972)994 8465 fax (972)994 8504 web: www.triquint.com product data sheet july 7, 2007 9 component description ref description c1 0.01 f capacitor c2 0.01 f capacitor c3 300pf capacitor c4 300pf capacitor c5 - c8 1.0pf - 2.0pf capacitor 3 / l1 390nh inductor l2 390nh inductor r1 current adjust 2 / r 1 = open circuit t1 balun 1 / t2 balun 1 / 1 / balun performance impacts amplifier return losses and gain. best performance can be achieved by winding 34 or 36 gauge bifilar wire around a small binocular core made from low-loss magnetic material. suitable wire may be obtained from mws wire industries. core vendors include ferronics, fairrite, tdk, and micrometals. alternatively, off-the-shelf baluns can be purchased from a number of vendors including mini-circuits ( adtl1-10-75-1, used for this data) , adtl1-18-75), m/a-com (etc1-1- 13), and pulse engineering (cx2071). 2 / current can be adjusted by either changing resistor, r1, or forcing a voltage on pin 7. 3 / tunes out balun inductance. selected for best return loss. recommended assembly TGA2801D-SG
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