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advance product information july 20, 2005 1 triquint semiconductor texas: phone (972)994-8465 fax (972)994-8504 email: info-mmw@tqs.com web: www.triquint.com catv tia/gain block TGA2803-SM key features and performance ? frequency range: 40mhz - 1ghz ? 20 db flat gain ? 800 w transimpedance * ? <5pa/ ? hz equivalent input noise current * ? 1.5 db 75 w noise figure ? ultra-low distortion (45dbm ip3 typ.) ? low dc power consumption ? single supply bias (+8v) ? proven gaas technology ? 20l package dimension: 4.0 x 4.0 x 0.9 mm * includes 1:1 balun, no photodiode or auto-transformer product description the triquint TGA2803-SM is an ultra- linear, packaged tia/gain block which operates from 40mhz to 1000mhz. the TGA2803-SM typically provides flat gain along with ultra-low distortion. it also provides high output power with low dc power consumption. this amplifier is ideally suited for use in catv distribution systems or other applications requiring extremely low noise and distortion. demonstration boards are available. lead-free and rohs compliant. bottom view top view primary applications ? hfc nodes ? catv line amplifiers ? head end equipment 0 4 8 12 16 20 24 0 200 400 600 800 1000 1200 frequency (mhz) gain (db) typical 75 : gain w/external balun losses removed 75 : output toi 35 39 43 47 51 55 0 100 200 300 400 500 600 700 800 900 frequency (mhz) otoi (dbm) input referred current noise with high impedance source 0 1 2 3 4 5 6 0 200 400 600 800 1000 1200 frequency (mhz) noise current(pa/rt(hz)) tga 2803 note: this device is early in the characterization process prior to finalizing all electrical specifications. specifications ar e subject to change without notice.
advance product information july 20, 2005 2 triquint semiconductor texas: phone (972)994-8465 fax (972)994-8504 email: info-mmw@tqs.com web: www.triquint.com TGA2803-SM table ii dc specifications symbol parameter typ unit v dd bias supply voltage 8 v i dd bias supply current 350 ma v g1 gate 1 voltage (pin 19) 0.90 v v g2 gate 2 voltage (pin 7) 2.66 v v out1 rf output 1 voltage (pin 14/15) v dd v v out2 rf output 2 voltage (pin 11/12) v dd v table i maximum ratings 1/ symbol parameter min max units notes v dd bias supply voltage 0 15 v i dd bias supply current 500 ma 1/ 2 / p in rf input power 77 dbmv 3/ t assy assembly temperature (30 seconds max) 300 c t stg storage temperature -65 150 c t case package operating temperature (heat slug) -40 110 c 1/ these values reflect maximum operable values for this device. operating above the recommended values may directly affect mttf. 2/ total current 3/ total input power
advance product information july 20, 2005 3 triquint semiconductor texas: phone (972)994-8465 fax (972)994-8504 email: info-mmw@tqs.com web: www.triquint.com table iii rf specifications 1/ t a =25 c, v dd =8v symbol parameter min typ max units note bw bandwidth 40 870 mhz s 21 power gain 20 db 2/ gf gain flatness 0.3 db 2/ nf noise figure 1.5 db 2/ tz transimpedance 800 w i n equivalent input current noise 5 pa/rthz 3/ ip 3 two-tone, third-order intercept (450 mhz) 46 dbm irl input return loss 16 db orl output return loss 20 db i d drain current 350 ma 4/ p1db output power at p1db (450 mhz) 27 dbm 1/ using electrical application circuit on pg. 8 2/ 1:1 balun losses have been removed from the measurement 3/ measured with open-circuited input 4/ increasing drain current will improve linearity of device TGA2803-SM
advance product information july 20, 2005 4 triquint semiconductor texas: phone (972)994-8465 fax (972)994-8504 email: info-mmw@tqs.com web: www.triquint.com typical measured s-parameters (75 : ) using application circuit (includes effects of external baluns) -40 -36 -32 -28 -24 -20 -16 -12 -8 -4 0 0 200 400 600 800 1000 1200 frequency (mhz) s11(db) 0 4 8 12 16 20 24 0 200 400 600 800 1000 1200 frequency (mhz) s21 (db) -40 -35 -30 -25 -20 -15 -10 -5 0 0 200 400 600 800 1000 1200 frequency (mhz) s12 (db) -40 -35 -30 -25 -20 -15 -10 -5 0 0 200 400 600 800 1000 1200 frequency (mhz) s22 (db) TGA2803-SM
advance product information july 20, 2005 5 triquint semiconductor texas: phone (972)994-8465 fax (972)994-8504 email: info-mmw@tqs.com web: www.triquint.com 0 1 2 3 4 5 6 0 200 400 600 800 1000 1200 frequency (mhz) noise current(pa/rt(hz)) typical measured performance using application circuit (includes effects of external baluns) 35 39 43 47 51 55 0 100 200 300 400 500 600 700 800 900 frequency (mhz) otoi (dbm) 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 0 200 400 600 800 1000 1200 frequency(mhz) noise figure(db) input balun losses removed TGA2803-SM
advance product information july 20, 2005 6 triquint semiconductor texas: phone (972)994-8465 fax (972)994-8504 email: info-mmw@tqs.com web: www.triquint.com mechanical specifications TGA2803-SM
advance product information july 20, 2005 7 triquint semiconductor texas: phone (972)994-8465 fax (972)994-8504 email: info-mmw@tqs.com web: www.triquint.com pinout top side dot indicates pin 1 bottom side pin description pin description 1 rf input 1 11 rf output 2 2 rf input 1 12 rf output 2 3 gnd 13, 21 gnd 4 rf input 2 14 rf output 1 5 rf input 2 15 rf output 1 6nc 16nc 7 vg2 (optional) 17 vdd (choked) 8vdd 18vdd 9 vdd (choked) 19 vg1 (optional) 10 isense 1/ 20 nc 1/ bias current monitor: i bias = v pin 10 / w tga 2803 TGA2803-SM
advance product information july 20, 2005 8 triquint semiconductor texas: phone (972)994-8465 fax (972)994-8504 email: info-mmw@tqs.com web: www.triquint.com optical receiver electrical gain amplifier balun tga 2803 push-pull tia balun electrical out 75 : electrical in 75 : TGA2803-SM application diagrams fiber in balun balun electrical out 75 : photodiode + transformer tga 2803 push-pull tia
advance product information july 20, 2005 9 triquint semiconductor texas: phone (972)994-8465 fax (972)994-8504 email: info-mmw@tqs.com web: www.triquint.com recommended electrical assembly component description ref description c1 0.01 m f capacitor c2 0.01 m f capacitor c3 470pf capacitor c4 470pf capacitor c5 270pf capacitor c6 270pf capacitor l1 820nh inductor l2 820nh inductor 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 (adtl1-18-75), m/a-com (etc1-1-13), and pulse engineering (cx2071). +8v +8v rf out tga 2803 1 2 3 4 5 15 14 13 12 11 678910 20 19 18 17 16 rf in t1 t2 l1 c2 c3 c4 c5 c6 c1 l2 TGA2803-SM
advance product information july 20, 2005 10 triquint semiconductor texas: phone (972)994-8465 fax (972)994-8504 email: info-mmw@tqs.com web: www.triquint.com component description ref description c1 0.01 m f capacitor c2 0.01 m f capacitor c3 470pf capacitor c4 470pf capacitor c5 270pf capacitor c6 270pf capacitor l1 820nh inductor l2 820nh inductor t1 balun 1/ t2 balun 1/ pd broadband photodiode 2/ 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 (adtl1-18-75), m/a-com (etc1-1-13), and pulse engineering (cx2071). 2/ emcore 2609c broadband photodiode module is recommended. the module includes a 4:1 impedance transformer. recommended electro-optical assembly +8v single-mode fiber pd -15v rfout +8v rf out tga 2803 1 2 3 4 5 15 14 13 12 11 67 8 9 10 20 19 18 17 16 t1 t2 l1 c2 c3 c4 c5 c6 c1 l2 TGA2803-SM
advance product information july 20, 2005 11 triquint semiconductor texas: phone (972)994-8465 fax (972)994-8504 email: info-mmw@tqs.com web: www.triquint.com ordering information part package style TGA2803-SM qfn 20l 4x4 surface mount recommended surface mount package assembly proper esd precautions must be followed while handling packages. clean the board with acetone. rinse with alcohol. allow the circuit to fully dry. triquint recommends using a conductive solder paste for attachment. follow solder paste and reflow oven vendors recommendations when developing a solder reflow profile. typical solder reflow profiles are listed in the table below. hand soldering is not recommended. solder paste can be applied using a stencil printer or dot placement. the volume of solder paste depends on pcb and component layout and should be well controlled to ensure consistent mechanical and electrical performance. clean the assembly with alcohol. gaas mmic devices are susceptible to damage from electrostatic discharge. proper precautions should be observed during handling, assembly and test. typical solder reflow profiles reflow profile snpb pb free ramp-up rate 3 c/sec 3 c/sec activation time and temperature 60 C 120 sec @ 140 C 160 c 60 C 180 sec @ 150 C 200 c time above melting point 60 C 150 sec 60 C 150 sec max peak temperature 240 c260 c time within 5 c of peak temperature 10 C 20 sec 10 C 20 sec ramp-down rate 4 C 6 c/sec 4 C 6 c/sec TGA2803-SM

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