1 of 6 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 vrf1 vrf2 RF1128 rf1 rf2 RF1128 broadband medium power (high isolation) spdt switch the RF1128 is a single-pole double-thr ow (spdt) switch designed for gen- eral purpose switching applications which require very low insertion loss and high power handling capability. th e RF1128 is ideally suited for bat- tery operated applications requiring high performance switching with very low dc power consumption. the RF1128 features very low insertion loss, broadband isolation and excellent line arity performance, and is operable from 1.8v to 3.3v control voltage. it is fabricated with 0.5 ? m gaas phemt process, and is packaged in a very compact 2mmx1.3mm, 6-pin, leadless qfn package. features ? broadband performance: low frequency to 3.5 ghz ? very low insertion loss: - 0.35db at 1ghz - 0.40db at 2ghz ? excellent linearity: - iip2 > 108dbm (typ.) - iip3 > 67dbm (typ.) ? p0.1db:32dbm (typ.) ? compact footprint (2.0mmx1.3mmx0.35mm, 6-pin qfn) applications ? cellular handset applications ? antenna tuning applications ? multi-mode gsm, w-cdma applications ? wlan applications RF1128 broadband medium power (high isolation) spdt switch RF1128pcba-410 fully assembled evaluation board ds110419 ? package style: qfn, 6-pin, 2mmx1.3mm
2 of 6 RF1128 ds110419 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 voltage 6.0 v maximum input power (0.6ghz to 3.5ghz), rf1, rf2, 50 ? +34 dbm operating temperature -30 to +85 c storage temperature -65 to +100 c parameter specification unit condition min. typ. max. vrf1, vrf2=high=3v, vrf1=vrf2=low=0v, temp=25c operating frequency 600 3500 mhz insertion loss rfc - rf1, rfc - rf2 0.25 0.35 db rf on, 50mhz to 600mhz 0.35 0.50 db rf on, 824mhz to 960mhz 0.40 0.55 db rf on, 1850mhz to 1990mhz 0.45 0.60 db rf on, 2170mhz to 2500mhz 0.55 0.70 db rf on, 3500mhz rf isolation rf1 - rf2 and rf2 - rf1 27 29 db rf on, 600mhz 25 27 db rf on, 824mhz to 960mhz 29 31 db rf on, 1850mhz to 1990mhz 32 34 db rf on, 2170mhz to 2500mhz rfc - rf1, rfc - rf2 27 29 db rf on, 600mhz 25 27 db rf on, 824mhz to 960mhz 28 30 db rf on, 1850mhz to 1990mhz 31 33 db rf on, 2170mhz to 2500mhz rf port return loss vswr 1.5:1 880mhz harmonics second harmonic 70 91 dbc p in =26dbm; f o =880mhz third harmonic 70 91 dbc p in =26dbm; f o =880mhz 1880mhz harmonics second harmonic 70 85 dbc p in =26dbm; f o =1880mhz third harmonic 70 88 dbc p in =26dbm; f o =1880mhz 2500mhz harmonics second harmonic 70 82 dbc p in =26dbm; f o =2500mhz third harmonic 70 86 dbc p in =26dbm; f o =2500mhz caution! esd sensitive device. exceeding any one or a combination of the absolute maximum rating conditions may cause permanent damage to the device. extended 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. 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 6 RF1128 ds110419 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . control logic parameter specification unit condition min. typ. max. iip2 rf1, rf2 - ant cell 104 111 dbm tone 1: 836.5mhz @ 16dbm, tone 2: 1718mhz @ -20dbm, receive freq: 881.5mhz rf1, rf2 - ant aws 105 111 dbm tone 1: 1732.5mhz @ 16dbm, tone 2: 3865mhz @ -20dbm, receive freq: 2132.5mhz rf1, rf2 - ant pcs 104 108 dbm tone 1: 1880mhz @ 16dbm, tone 2: 3840mhz @ -20dbm, receive freq: 1960mhz iip3 rf1, rf2 - ant cell 65 68 dbm tone 1: 836.5mhz @ 16dbm, tone 2: 791.5mhz @ -20dbm, receive freq: 881.5mhz rf1, rf2 - ant imt 65 67 dbm tone 1: 1950mhz @ 16dbm, tone 2: 1760mhz @ -20dbm, receive freq: 2140mhz input power at 0.1db compression point 32 dbm switching speed 600 ns 50% to 90% rf on, 50% to 10% rf off dc supply vrf1 and vrf2 (h) 2.85 3.0 3.30 v vrf1 and vrf2 (l) 0.00 0.40 v control current 6.00 ua control signals signal paths vrf1 vrf2 rf1-rfc rf2-rfc valid states 1 0 on off 01offon invalid states 0 0 indeterminate state* 1 1 indeterminate state* 0: logic level low, 0v~0.4v 1: logic level high, 2.85v~3.3v note: in indeterminate states, both signal paths are on with degraded performance. for low power applications, RF1128 is operable at 1.8v control voltage with no significant change to the insertion loss, return loss, and isolation performance.
4 of 6 RF1128 ds110419 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or sales-support@rfmd.com . package drawing pin function description 1rf1 rf port 1. 2gnd ground. 3rf2 rf port 2. 4vrf1 control 1. 5rfc antenna. 6vrf2 control 2. pkg base gnd ground.
5 of 6 RF1128 ds110419 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 schematic evaluation board layout 1 2 3 6 5 4 7 c4 100 pf c5 100 pf j3 rf1 j2 rf2 c3 100 pf j1 ant l1 dni vrf2 c2 100 pf vrf1 c1 100 pf vrf1 1 2 3 vrf2 1 2 3
6 of 6 RF1128 ds110419 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 note: fixture losses have been de-embedded (temp=25c, vrf1=vrf2=high=3v, vrf1=vrf2=low=0v) insertion loss (temperature=25c, vrf(h)=3v) -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0.0 500 1000 1500 2000 2500 3000 3500 frequency (mhz) insertion loss (db) ant port return loss (temperature=25c, vrf(h)=3v) -50 -40 -30 -20 -10 0 500 1000 1500 2000 2500 3000 3500 frequency (mhz) return loss (db) harmonics (temperature=25c, vrf(h)=3v) -100 -90 -80 -70 -60 -50 18 19 20 21 22 23 24 25 26 27 28 input power (dbm) harmonic level (dbc) 2fo 3fo port-to-port isolation (temperature=25c, vrf(h)=3v) -50 -40 -30 -20 -10 0 500 1000 1500 2000 2500 3000 frequency (mhz) isolation (db) antenna-to-port isolation (temperature=25c, vrf(h)=3v) -50 -40 -30 -20 -10 0 500 1000 1500 2000 2500 3000 frequency (mhz) isolation (db)
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