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NJG1144UX2 - 1 - ver.2013-12-25 gnss low noise amplifier general description package outline the NJG1144UX2 is a low noise amplifier gaas mmic d esigned for gnss (global navigation satellite systems). thi s amplifier operates from 1.5v to 3.6v supply voltage. the njg1 144ux2 achieves high gain, low noise figure and excellent input vswr. according to adjust the external components, the nj g1144ux2 could also be used in wide frequency range from 1.0 ghz to 3.0ghz. the NJG1144UX2 is available in a very small, rohs c ompliant, halogen free, 0.65mm x 0.65mm x 0.37 mm, 4-pin epff p4-x2 package. applications gnss applications, like gps, galileo, glonass and c ompass. features low voltage operation 1.5~3.6v low current consumption 3.5ma@ v dd =2.85v 1.8ma@ v dd =1.8v low noise figure 0.65db@ f=1575mhz, v dd =2.85v high gain 21.0db@ f=1575mhz, v dd =2.85v high input ip3 -2.0dbm@ f=1575mhz, v dd =2.85v package epffp4-x2 (package size: 0.65mm x 0.65mm x 0.37mm typ.) built-in esd protection diode rohs compliant, pb free, halogen free pin configuration note: specifications and description listed in this datasheet are subject to change without notice 1 32 4 rfin gnd gnd rfout pin connection 1. gnd 2. rfout 3. gnd 4. rfin 1pin index NJG1144UX2 (top view)
NJG1144UX2 - 2 - absolute maximum ratings t a =+25c, z s =z l =50 ohm parameter symbol conditions ratings units supply voltage v dd 5.0 v input power p in v dd =2.85v +15 dbm power dissipation p d 4-layer fr4 pcb with through-hole (101.5x114.5mm), t j =150c 250 mw operating temperature t opr -40~+85 c storage temperature t stg -55~+150 c electrical characteristics 1 (dc characteristics) t a =+25c parameters symbol conditions min typ max units operating voltage v dd 1.5 - 3.6 v operating current1 i dd 1 rf off, v dd =2.85v - 3.5 5.5 ma operating current2 i dd 2 rf off, v dd =1.8v - 1.8 3.2 ma
NJG1144UX2 - 3 - electrical characteristics 2 (rf characteristics) v dd =2.85v, freq=1575mhz, t a =+25c, z s =z l =50 ohm, with application circuit parameters symbol conditions min typ max units small signal gain1 gain1 18.0 21.0 23.5 db noise figure1 nf1 exclude pcb, connector losses (0.08db) - 0.65 0.95 db input power 1db gain compression1 p -1db(in) 1 -19.0 -16.5 - dbm input 3rd order intercept point1 iip3_1 f1=freq, f2=freq+100khz, p in =-34dbm -5.0 -2.0 - dbm isolation1 isl1 s12 - -35.0 -25.0 db rf in vswr1 vswri1 - 1.5 2.0 - rf out vswr1 vswro1 - 1.5 2.2 - electrical characteristics 3 (rf characteristics) v dd =1.8v, freq=1575mhz, t a =+25c, z s =z l =50 ohm, with application circuit parameters symbol conditions min typ max units small signal gain2 gain2 16.0 18.0 21.5 db noise figure2 nf2 exclude pcb, connector losses (0.08db) - 0.85 1.30 db input power 1db gain compression2 p -1db(in) 2 -22.0 -18.5 - dbm input 3rd order intercept point2 iip3_2 f1=freq, f2=freq+100khz, p in =-34dbm -11.0 -6.0 - dbm isolation2 isl2 s12 - -35.0 -25.0 db rf in vswr2 vswri2 - 1.8 2.4 - rf out vswr2 vswro2 - 1.8 2.6 -
NJG1144UX2 - 4 - terminal information no. symbol description 1 gnd ground terminal (0v), connect to the pcb grou nd plane. 2 rfout rf output and voltage supply terminal. an external output matching circuit is required. 3 gnd ground terminal (0v), connect to the pcb grou nd plane. 4 rfin rf input terminal. dc blocking capacitor is not req uired. an external input matching circuit is required.
NJG1144UX2 - 5 - -20 -15 -10 -5 0 5 10 15 20 -40 -30 -20 -10 0 10 pout vs. pin (v dd =2.85v, frf=1575mhz) pout (dbm) pin (dbm) pout p-1db(in)=-16.5dbm 8 10 12 14 16 18 20 22 24 2 3 4 5 6 7 8 9 10 -40 -30 -20 -10 0 10 gain, i dd vs. pin (v dd =2.85v, frf=1575mhz) gain (db) i dd (ma) pin (dbm) gain i dd p-1db(in)=-16.5dbm -100 -80 -60 -40 -20 0 20 40 60 -40 -30 -20 -10 0 10 pout, im3 vs. pin (v dd =2.85v, f1=1575mhz, f2=f1+100khz) pout , im3 (dbm) pin (dbm) pout im3 iip3=-2.3dbm 8 10 12 14 16 18 20 22 24 -8 -6 -4 -2 0 2 4 6 8 1550 1560 1570 1580 1590 1600 oip3, iip3 vs. frequency (v dd= 2.85v, f1=1550~1600mhz, f2=f1+100khz, pin=-34dbm) oip3 (dbm) iip3 (dbm) frequency (mhz) oip3 iip3 0.0 0.5 1.0 1.5 2.0 2.5 3.0 14 16 18 20 22 24 26 1.50 1.55 1.60 1.65 nf, gain vs. frequency (v dd =2.85v, f=1.5~1.65ghz) noise figure (db) gain (db) frequency (ghz) gain nf (nf: exclude pcb, connector losses) electrical characteristics conditions: v dd =2.85v, ta=25c, z s =z l =50 ohm, with application circuit
NJG1144UX2 - 6 - 18 19 20 21 22 23 24 0.0 0.5 1.0 1.5 2.0 2.5 3.0 -60 -40 -20 0 20 40 60 80 100 gain, nf vs. temperature (v dd =2.85v, f=1575mhz) gain (db) noise figure (db) temperature ( o c) gain nf (nf: exclude pcb, connector losses) -24 -22 -20 -18 -16 -14 -12 -10 -60 -40 -20 0 20 40 60 80 100 p-1db(in) vs. temperature (v dd =2.85v, f=1575mhz) p-1db(in) (dbm) temperature ( o c) p-1db(in) 15 16 17 18 19 20 21 22 23 -4 -3 -2 -1 0 1 2 3 4 -60 -40 -20 0 20 40 60 80 100 oip3, iip3 vs. temperature (v dd =2.85v, f1=1575mhz, f2=f1+100khz, pin=-34dbm) oip3 (dbm) iip3 (dbm) temperature ( o c) oip3 iip3 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 -60 -40 -20 0 20 40 60 80 100 vswr vs. temperature (v dd =2.85v, f=1575mhz) vswri vswro vswr temperature ( o c) 1 2 3 4 5 6 -60 -40 -20 0 20 40 60 80 100 i dd vs. temperature (v dd =2.85v, rf off) i dd (ma) temperature ( o c) i dd 0 5 10 15 20 0 5 10 15 20 k factor vs. temperature (v dd =2.85v, f=50mhz~20ghz) -40 o c -25 o c -10 o c 0 o c +25 o c +55 o c +85 o c k factor frequency (ghz) electrical characteristics conditions: v dd =2.85v, z s =z l =50 ohm, with application circuit
NJG1144UX2 - 7 - electrical characteristics conditions: v dd =2.85v, ta=25c, z s =z l =50 ohm, with application circuit s11, s22 s21, s12 vswri, vswro zin, zout s11, s22 (50m~20ghz) s21, s12 (50m~20ghz)
NJG1144UX2 - 8 - electrical characteristics conditions: v dd =1.8v, ta=25c, z s =z l =50 ohm, with application circuit -25 -20 -15 -10 -5 0 5 10 -40 -30 -20 -10 0 10 pout vs. pin (v dd =1.8v, frf=1575mhz) pout (dbm) pin (dbm) pout p-1db(in)=-17.7dbm 6 8 10 12 14 16 18 20 22 0 1 2 3 4 5 6 7 8 -40 -30 -20 -10 0 10 gain, i dd vs. pin (v dd =1.8v, frf=1575mhz) gain (db) i dd (ma) pin (dbm) gain i dd p-1db(in)=-17.7dbm -100 -80 -60 -40 -20 0 20 -40 -30 -20 -10 0 10 pout, im3 vs. pin (v dd =1.8v, f1=1575mhz, f2=f1+100khz) pout , im3 (dbm) pin (dbm) pout im3 iip3=-5.3dbm 2 4 6 8 10 12 14 16 18 -10 -8 -6 -4 -2 0 2 4 6 1550 1560 1570 1580 1590 1600 oip3, iip3 vs. frequency (v dd= 1.8v, f1=1550~1600mhz, f2=f1+100khz, pin=-34dbm) oip3 (dbm) iip3 (dbm) frequency (mhz) oip3 iip3 0.0 0.5 1.0 1.5 2.0 2.5 3.0 10 12 14 16 18 20 22 1.50 1.55 1.60 1.65 nf, gain vs. frequency (v dd =1.8v, f=1.5~1.65ghz) noise figure (db) gain (db) frequency (ghz) gain nf (nf: exclude pcb, connector losses)
NJG1144UX2 - 9 - 15 16 17 18 19 20 21 0.0 0.5 1.0 1.5 2.0 2.5 3.0 -60 -40 -20 0 20 40 60 80 100 gain, nf vs. temperature (v dd =1.8v, f=1575mhz) gain (db) noise figure (db) temperature ( o c) gain nf (nf: exclude pcb, connector losses) -24 -22 -20 -18 -16 -14 -12 -10 -60 -40 -20 0 20 40 60 80 100 p-1db(in) vs. temperature (v dd =1.8v, f=1575mhz) p-1db(in) (dbm) temperature ( o c) p-1db(in) 9 10 11 12 13 14 15 16 17 -8 -7 -6 -5 -4 -3 -2 -1 0 -60 -40 -20 0 20 40 60 80 100 oip3, iip3 vs. temperature (v dd =1.8v, f1=1575mhz, f2=f1+100khz, pin=-34dbm) oip3 (dbm) iip3 (dbm) temperature ( o c) oip3 iip3 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 -60 -40 -20 0 20 40 60 80 100 vswr vs. temperature (v dd =1.8v, f=1575mhz) vswri vswro vswr temperature ( o c) 0 1 2 3 4 -60 -40 -20 0 20 40 60 80 100 i dd vs. temperature (v dd =1.8v, rf off) i dd (ma) temperature ( o c) i dd 0 5 10 15 20 0 5 10 15 20 k factor vs. temperature (v dd =1.8v, f=50mhz~20ghz) -40 o c -25 o c -10 o c 0 o c +25 o c +55 o c +85 o c k factor frequency (ghz) electrical characteristics conditions: v dd =1.8v, z s =z l =50 ohm, with application circuit
NJG1144UX2 - 10 - electrical characteristics conditions: v dd =1.8v, ta=25c, z s =z l =50 ohm, with application circuit s11, s22 s21, s12 vswri, vswro zin, zout s11, s22 (50m~20ghz) s21, s12 (50m~20ghz)
NJG1144UX2 - 11 - 8 10 12 14 16 18 20 22 24 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 1.0 1.5 2.0 2.5 3.0 3.5 4.0 gain, nf vs. v dd (f=1575mhz) gain (db) noise figure (db) v dd (v) gain nf (nf: exclude pcb, connector losses) -21 -20 -19 -18 -17 -16 -15 -14 -13 1.0 1.5 2.0 2.5 3.0 3.5 4.0 p-1db(in) vs. v dd (f=1575mhz) p-1db(in) (dbm) v dd (v) p-1db(in) 4 6 8 10 12 14 16 18 20 22 24 -10 -8 -6 -4 -2 0 2 4 6 8 10 1.0 1.5 2.0 2.5 3.0 3.5 4.0 oip3, iip3 vs. v dd (f1=1575mhz, f2=f1+100khz, pin=-34dbm) oip3 (dbm) iip3(dbm) v dd (v) oip3 iip3 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 1.0 1.5 2.0 2.5 3.0 3.5 4.0 vswr vs. v dd (f=1575mhz) vswri vswro vswri v dd (v) 0 1 2 3 4 5 6 1.0 1.5 2.0 2.5 3.0 3.5 4.0 i dd vs. v dd (rf off) i dd (ma) v dd (v) i dd electrical characteristics conditions: ta=25c, z s =z l =50 ohm, with application circuit
NJG1144UX2 - 12 - application circuit test pcb layout parts id. manufacturer l1~l3 murata lqp03t_02 series c1, c2 murata grm03 series 1 32 4 rfin gnd gnd rfout rf in l1 9.1nh rf out 1pin index l 2 15nh l 3 6.2nh c 1 1.6pf c2 1000pf v dd (top view) parts list 1pin index rf in rf out l2 l1 l3 c2 c1 v dd (top view) * please place all external parts around the ic as close as possible. pcb (fr-4): t=0.2mm microstrip line width =0.40mm (z 0 =50 ohm) pcb size=14.0mm x 14.0mm
NJG1144UX2 - 13 - measurement block diagram measuring instruments nf analyzer agilent 8973a, 8975a noise source agilent 346a setting the nf analyzer measurement mode form device under test amplifier system downconverter off mode setup form sideband lsb averages 16 average mode point bandwidth 4mhz loss comp off tcold setting the temperature of noise source (304.65k) calibration setup noise source (agilent 346a) nf analyzer (agilent 8973a, 8975a) input (50ohm) noise source drive output measurement setup noise source (agilent 346a) dut nf analyzer (agilent 8973a, 8975a) input (50ohm) noise source drive output in out * noise source and dut, dut and nf analyzer are connected directly. * noise source and nf analyzer are connected directly.
NJG1144UX2 - 14 - package outline (epffp4-x2) caution s on using this product this product contains gallium-arsenide (gaas) wh ich is a harmful material. ? do not eat or put into mouth. ? do not dispose in fire or break up this product. ? do not chemically make gas or powder with this pro duct. ? to wast e th is product, please obey the relati ng law of your country. this product may be damaged with electric static di scharge (esd) or spike voltage. please hand le with care to avoid these damages . [caution] the specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. the application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. unit mm substrate fr-4 terminal treat au molding material epoxy resin weight 0.38mg

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