1 of 7 optimum technology matching? applied gaas hbt ingap hbt gaas mesfet sige bicmos si bicmos sige hbt gaas phemt si cmos si bjt gan hemt functional block diagram rf micro devices?, rfmd?, optimum technology matching?, enabling wireless connectivity?, powerstar?, polaris? total radio? and ultimateblue? are trademarks of rfmd, llc. bluetooth is a trade- mark owned by bluetooth sig, inc., u.s.a. and licensed for use by rfmd. all other trade names, trademarks and registered tradem arks are the property of their respective owners. ?2006, rf micro devices, inc. product description 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . ordering information bifet hbt ldmos 1 2 3 9 8 7 6 5 4 12 lna_en gnd gnd nc rx_out vdd gnd tx_in c_tx/rx ant 10 11 gnd nc RF5540 4.9ghz to 5.85ghz switch and lna front end solution the RF5540 is designed specifically for high-performance wifi applications in the 5ghz ism band. this module integrates the lna with bypass and an spdt switch of a front end solution. the integrated inpu t and output match reduces the number of external components keeping cost down and utilizing minimum layout area for implementation. the RF5540 is provided in a 2mmx2mmx0.5mm, 12-pin qfn package. this lna + switch front-end solu tion meets or exceeds the specification requirements of ieee 802.11a rf systems. features ? single supply voltage 2.7v to 4.8v ? integrated 5ghz lna with bypass and spdt applications ? ieee802.11a wifi applications ? consumer electronics ? mobile devices ? gaming ? general purpose switch and lna solution for 4.9ghz to 5.85ghz frequency range ds120727 ? package: qfn, 12-pin, 2.0mmx2.0mmx0.5mm RF5540 4.9ghz to 5.85ghz switch and lna front end solution RF5540sb 5-piece bag RF5540sq 25-piece bag RF5540sr standard 100-piece bag RF5540tr7 standard 2500-piece reel RF5540pck-410 fully assembled evaluation board and 5 loose sample pieces free datasheet http://
2 of 7 RF5540 ds120727 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . absolute maximum ratings parameter rating unit dc supply voltage 5.5 v full spec compliant temperature range -15 to +75 c storage temperature -40 to +150 c esd - human body model 500 v esd - cdm 1000 v lna input power (no damage) 5 dbm moisture sensitivity msl2 parameter specification unit condition min. typ. max. compliance ieee802.11a, fcc cfr 15.247, .205, .209, en and jdec, v dd =2.7 to 4.2v, lna_en=2.5 to v dd -0.2v, temp=-15c to +75c, freq=4.9ghz to 5.85ghz, unless otherwise noted. receive parameters frequency 4.90 5.85 ghz lna voltage supply (v dd ) 2.7 3.6 4.2 v lna enable voltage (lna-en) lna enabled 2.5 3.3 v dd - 0.2 v lna off 0 0.2 v lna_en off turns bypass switch on switch control logic low 0 0.2 v high 2.5 3.3 v dd - 0.2 v lna current lna v dd 17 22 ma lna in ?on? state, over all conditions 0 5 30 ua lna in ?off? state, over all conditions lna_en current 1 ma lna in ?on? state, over all conditions 100 ua lna in ?off? state, over all conditions gain wifi rx 11 16 20 db wifi ant-rx, 4.9ghz to 5.85ghz, over all conditions bypass mode -12 -9 -7 db wifi ant-rx, bypass mode, over all conditions noise figure 2.4 3.2 db v dd > 3.0v, including switch, over all conditions passband ripple wifi rx mode -1.3 +1.3 db over all conditions, 5.10ghz to 5.85ghz -0.8 +0.8 db over all conditions, 4.9ghz to 5.1ghz wifi rx bypass mode -0.8 +0.8 db over all conditions wifi rx port return loss 10 db over all conditions ip1db -7 dbm over all conditions iip3 3 dbm over all conditions caution! esd sensitive device. exceeding any one or a combination of the absolute maximum rating conditions may cause permanent damage to the device. ex tended application of absolute maximum rating conditions to the device may reduce device reliability. specified typical perfor- mance or functional operation of the devi ce under absolute maximum rating condi- tions is not implied. the information in this publication is believed to be accurate and reliable. however, no responsibility is assumed by rf micro devices, inc. ("rfmd") for its use, nor for any infringement of patents, or other rights of third parties, resulting from its use. no license is granted by implication or otherwise under any patent or patent rights of rfmd. rfmd reserves the right to change component circuitry, recommended appli- cation circuitry and specifications at any time without prior notice. rfmd green: rohs compliant per eu directive 2002/95/ec, halogen free per iec 61249-2-21, < 1000ppm each of antimony trioxide in polymeric materials and red phosphorus as a fl ame retardant, and <2% antimony in solder. free datasheet http://
3 of 7 RF5540 ds120727 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . parameter specification unit condition min. typ. max. transmit switch parameters frequency 4.90 5.85 ghz insertion loss 1 1.8 db tx-ant, over all conditions noise figure 1 1.8 db tx-ant, over all conditions passband ripple -0.2 +0.2 db over all conditions p1db to tx path 25 30 dbm switch ports only, over all conditions input power 18 dbm system evm=0.5% assumed for the incoming signal; 18dbm at the input with 1% composite evm at the output. input return loss 9.6 12 db over all conditions output return loss 8.5 12 db over all conditions port impedance tuning 50 ? all rf ports tuned for 50 ? system isolation tx to rx 20 db tx dc mode, path ant to rx, over all conditions isolation rx to tx 20 db wifi rx bypass mode, path ant-tx, over all conditions switch control current 35 50 ua per control line, over all conditions switch control speed 75 150 nsec over all conditions free datasheet http://
4 of 7 RF5540 ds120727 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . pin out switch logic truth table: pin function description 1gnd ground. 2ant this is the common port (antenna). matched to 50 ? . external dc blocking capacitor required. 3gnd ground. 4lna_en lna enable/bypass enable control pin. see switch truth table for proper settings. 5gnd ground. 6vdd supply voltage to the lna. 7nc no board connection allowed. 8rx_out receive port for 802.11a/n band. rx output includes integrated dc-block and 50 ? match. 9nc no board connection allowed. 10 gnd ground. 11 tx_in transmit port for 802.11a/n band. matched to 50 ? . external dc blocking capacitor required. 12 c_tx/rx transmit and receive mode control pin. se e switch truth table for proper settings. mode c_tx/rx lna_en rx gain l h rx bypass l l tx h l lna_en gnd vdd c_tx/rx 1 2 3 9 8 7 6 5 4 12 gnd nc rx_out gnd tx_in ant 10 11 gnd nc free datasheet http://
5 of 7 RF5540 ds120727 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . package drawing free datasheet http://
6 of 7 RF5540 ds120727 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . pcb pattern application schematic e pcb stencil pattern a a b b d d d d c c c c a a b b d d c d c c d c a a b b d d d d c c c c pcb solder mask pattern pcb metal pattern a = 0.250 x 0.402 (mm) typ b = 0.402 x 0.250 (mm) typ c = 0.250 x 0.402 (mm) 60% rounded rectangle d = 0.402 x 0.250 (mm) 60% rounded rectangle e = 1.050 x 1.050 (mm) e e 0.000 3x 0.926 2x 0.500 3x 0.926 0.000 2x 0.500 2x 0.500 3x 0.926 2x 0.500 3x 0.926 12x 0.200 8x 0.250 0.000 3x 0.926 2x 0.500 3x 0.926 0.000 2x 0.500 2x 0.500 3x 0.926 2x 0.500 3x 0.926 12x 0.100 8x 0.150 a = 0.350 x 0.502 (mm) typ b = 0.502 x 0.350 (mm) typ c = 0.350 x 0.502 (mm) 60% rounded rectangle d = 0.502 x 0.350 (mm) 60% rounded rectangle e = 1.150 x 1.150 (mm) a = 0.225 x 0.362 (mm) b = 0.362 x 0.225 (mm) c = 0.225 x 0.362 (mm) 60% rounded rectangle d = 0.362 x 0.225 (mm) 60% rounded rectangle e = 0.945 x 0.945 (mm) 0.000 3x 0.926 0.000 2x 0.500 2x 0.500 3x 0.926 2x 0.500 3x 0.926 12x 0.273 8x 0.275 3x 0.926 2x 0.500 shaded area represents pin 1 location. 1 2 3 9 8 7 6 5 4 12 10 11 ant lna_en tx_in rx_out vdd 0.1uf 100 pf 100 pf c_tx/rx free datasheet http://
7 of 7 RF5540 ds120727 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . RF5540 performance plots 8 10 12 14 16 18 20 22 24 4900 5100 5400 5850 highgain(db) frequency(mhz) RF5540:highgainversustemperature (v dd =3.3v;controlvoltagehigh2.7v,controlvoltagelow0.2v) 15c +25c +75c 10 12 14 16 18 20 22 24 4900 5100 5400 5850 i dd (ma) frequency(mhz) RF5540:operatingcurrentversustemperature (v dd =3.3v;controlvoltagehigh2.8v,controlvoltagelow0.2v) 15c +25c +75c 0 1 2 3 4 5 4900 5100 5400 5850 noisefigure(db) frequency(mhz) RF5540:noisefigureversustemperature (v dd =3.3v;controlvoltagehigh2.8v,controlvoltagelow0.2v ) 15c +25c +75c 3 2.5 2 1.5 1 0.5 0 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 5900 txil(db) frequency(mhz) RF5540:transmitinsertionlossversustemperature (v dd =3.3v;controlvoltagehigh2.8v,controlvoltagelow0.2v) 15c +25c +75c free datasheet http://
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