1 of 9 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 sales-support@rfmd.com. ordering information rf mems ldmos rf4 RF1147 rf3 charge pump/ decoder rf2 rf1 ant vdd v1 v2 RF1147 broadband low power sp4t switch the RF1147 is a single-pole four-throw (sp4t) switch designed for general purpose switching applications which require very low insertion loss and low power handling capability. the RF1147 is ideally suited for batt ery operated applications requiring high performance switching with very low dc power consumption. the RF1147 features very low insertion loss with excellent linearity perfor- mance down to 1.8v control voltage. additionally, RF1147 includes inte- grated decoding logic, allowing just two control lines needed for switch control. the RF1147 is packaged in a very compact 3mmx3mmx0.6mm, 16-pin, leadless qfn package. unless external dc is presented to the device rf ports, no external dc blocking capacitors are needed. features ? low frequency - 2.7ghz operation ? very low insertion loss: cell band 0.35db pcs band 0.45db ? high isolation: cell band 29db pcs band 22db ? compatible with low voltage logic: (v high =1.8v) ? excellent linearity perfor- mance (iip2): cell band 106dbm pcs band 110dbm ? lowest bom cost and small solution size applications ? cellular handset applications ? cellular infrastructure appli- cations RF1147 broadband low power sp4t switch RF1147pcba-410 fully assembled evaluation board ds110429 ? ? package style: qfn, 16-pin, 3mmx3mm
2 of 9 RF1147 ds110429 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com. absolute maximum ratings parameter rating unit v dd , v1, v2 6.0 v maximum input power (dc to 2.5ghz, 2.5v control) 28 dbm operating temperature -40 to +90 c storage temperature -65 to +125 c parameter specification unit condition min. typ. max. operating characteristics active mode:v high > 1.8v,v low < 0.4v; v dd =2.75v; temp=25c; p in =26dbm unless otherwise specified. insertion loss rf1-ant, rf2-ant, rf3-ant, rf4-ant 0.35 0.50 db 824 mhz to 960 mhz 0.35 0.60 db 1574mhz to 1577mhz 0.45 0.65 db 1850mhz to 1990mhz 0.55 0.70 db 2170mhz to 2500mhz 0.55 0.75 db 2510mhz to 2690mhz isolation rf1-ant, rf2-ant, rf3-ant, rf4-ant 26 29 db 824 mhz to 960 mhz 22 24 db 1574mhz to 1577mhz 20 22 db 1850mhz to 1990mhz 17 20 db 2170mhz to 2500mhz 17 20 db 2510mhz to 2690mhz return loss rf1-ant, rf2-ant, rf3-ant, rf4-ant 19 25 db for above listed frequency ranges, all rf ports in insertion loss state. harmonics second harmonic (2f 0 )7086dbcf=880mhz, p in =26dbm 70 88 dbc f=1880mhz, p in =26dbm third harmonic (3f 0 )7081dbcf=880mhz, p in =26dbm 70 79 dbc f=1880mhz, p in =26dbm iip2 rf1-ant, rf2-ant, rf3-ant, rf4-ant (cell) 102 106 dbm tone 1: 824mhz @ 16 dbm, tone 2: 1693mhz @ -20dbm, receive freq: 869mhz rf1-ant, rf2-ant, rf3-ant, rf4-ant (aws) 104 108 dbm tone 1: 1710mhz @ 16 dbm, tone 2: 3820mhz @ -20dbm, receive freq: 2110mhz rf1-ant, rf2-ant, rf3-ant, rf4-ant (pcs) 106 110 dbm tone 1: 1850mhz @ 16dbm, tone 2: 3780mhz @ -20 dbm, receive freq: 1930mhz triple beat ratio (tbr) rf1-ant, rf2-ant, rf3-ant, rf4-ant (cell) 65 68 dbc vswr=2:1; temp=15c, 25c, 60c; jam- mer freq=881.5 mhz rf1-ant, rf2-ant, rf3-ant, rf4-ant (pcs) 65 68 dbc vswr=2:1; temp=15c, 25c, 60c; jam- mer freq=1960mhz 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 de vice reliability. specified typical perfor- mance or functional operation of the devi ce under absolute maximum rating condi- tions is not implied. rohs status based on eudirective2002/95/ec (at time of this document revision). 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.
3 of 9 RF1147 ds110429 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com. parameter specification unit condition min. typ. max. 0.1db compression (p0.1db) 28 dbm f=900mhz 28 dbm f=1800 mhz switching speed 0.55 1.5 ? s 50% control to 10%/90% supply and control signal characteristics switch supply voltage (v dd ) 2.50 2.75 3.30 v continuously supply current (i dd ) 600 900 ? a control voltage v high 1.3 1.8 2.9 v v low 00.4v control current 0.1 1 ? ap in =16dbm
4 of 9 RF1147 ds110429 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com. pin function description 1gnd ground 2vdd supply 3v2 control signal 2 4v1 control signal 1 5gnd ground 6rf rf output 4 7gnd ground 8rf3 rf output 3 9gnd ground 10 gnd ground 11 ant rf input. connected to antenna 12 gnd ground 13 rf1 rf output 1 14 gnd ground 15 rf2 rf output 2 16 nc can be left floating or grounded pkg base gnd ground
5 of 9 RF1147 ds110429 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com. pin out package drawing 1 2 3 4 5 6 7 8 12 11 10 9 16 15 14 13 top view rf1 gnd rf2 nc gnd vdd v2 v1 rf3 gnd rf4 gnd gnd ant gnd gnd
6 of 9 RF1147 ds110429 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com. general information control logic the switch is operable in four states (see truth table, below) . the switch is designed for two modes: active and stand-by. thes e modes are controlled by the v dd signal. when vdd is high, the switch is active. truth table electrical test methods the electrical parameters for the switch were measured on test evaluation board provided by the switch supplier. the test eval- uation board includes means for decoupling rf signals from control signal port (shunt capacitor at control signal ports). all measurements are done with calibration plane at switch pins. the effect of test board losses and phase delay has been removed from the results. mode v1 v2 s1 s2 s3 s4 ant-rf1 low low on off off off ant-rf2 low high off on off off ant-rf3 high low off off on off ant-rf4 high high off off off on
7 of 9 RF1147 ds110429 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com. application schematic application diagram and guidelines the decoupling capacitors are optional and, if necessary, may be used for noise reduction. decoupling capacitors on the con- trol pins protect the control circuitry from possible rf leakage. dc blocking capacitors are not needed on the rf paths as ther e is no dc on the rf paths, however care should be taken to ensure that dc is not injected into the switch from external circuitr y. an esd filter is needed to protect the switch from antenna esd ev ents. the filter is formed by lesd inductor and cesd capaci- tor. the switch has a supply input to feed the built-in logic decoding. *lesd value will depend on the level of esd protec tion and the loss acceptable in a given application. 6 8 5 7 17 1 16 2 12 11 10 9 3 15 14 13 4 rf4 rf3 ant rf2 rf1 c1 dni l1 dni c3 100 pf c2 100 pf c4 10 nf p1 1 2 3 4 5 v1 v2 vdd
8 of 9 RF1147 ds110429 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com. evaluation board layout board thickness 0.0658?, board material fr-4 and rogers r2003 component layer topside rf layer inner layer 1 inner layer 2 ground plane layer
9 of 9 RF1147 ds110429 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com. typical performance data on evaluation board fixture losses have been de-embedded (temp=25c, v dd =2.75v, v control high=1.8v, v control low=0v) -1.5 -1.3 -1.0 -0.8 -0.5 -0.3 0.0 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 3200 3400 3600 insertion loss (db) freque ncy (mhz) insertion loss (temp = 25c, v dd =2.75v) -50.0 -40.0 -30.0 -20.0 -10.0 0.0 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 3200 3400 3600 return loss (db) frequency (mhz) return loss (temp = 25c, v dd =2.75v) -50.0 -40.0 -30.0 -20.0 -10.0 0.0 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 3200 3400 3600 isolation (db) frequency (mhz) antenna to port isolation (temp = 25c, v dd =2.75v) -110.0 -100.0 -90.0 -80.0 -70.0 -60.0 17 18 19 20 21 22 23 24 25 26 27 harmonic level (dbc) input power (dbm) harmonics (temp=25c, v dd =2.75v, frequency=880mhz) 2fo 3fo 16.0 18.0 20.0 22.0 24.0 26.0 28.0 17 18 19 20 21 22 23 24 25 26 27 output power p out (dbm) input power pin (dbm) output power versus input power (temperature=25c, frequency=1880mhz, vdd=2.75v)
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