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general description the max2041 high-linearity passive upconverter or downconverter mixer is designed to provide 7.4db nf and a 7.2db conversion loss for an rf frequency range of 1700mhz to 3000mhz to support umts/wcdma, dcs, pcs, and wimax base-station transmitter or receiver applications. the iip3 is typically +33.5dbm for both downconversion and upconversion operation. with an lo frequency range of 1900mhz to 3000mhz, this particular mixer is ideal for high-side lo injection architectures. (for a pin-compatible mixer meant for low-side lo injection, refer to the max2039.) in addition to offering excellent linearity and noise perfor- mance, the max2041 also yields a high level of compo- nent integration. this device includes a double-balanced passive mixer core, a dual-input lo selectable switch, and an lo buffer. on-chip baluns are also integrated to allow for a single-ended rf input for downconversion (or rf output for upconversion), and single-ended lo inputs. the max2041 requires a nominal lo drive of 0dbm, and supply current is guaranteed to be below 145ma. the max2041 is pin compatible with the max2031 815mhz to 995mhz mixer, making this family of passive upconverters and downconverters ideal for applications where a common pc board layout is used for both fre- quency bands. the max2041 is available in a compact 20-pin thin qfn package (5mm x 5mm) with an exposed paddle. electrical performance is guaranteed over the extended -40? to +85? temperature range. applications umts/wcdma base stations dcs 1800/pcs 1900 edge base stations cdmaone tm and cdma2000 base stations wimax base stations and customer premise equipment phs/pas base stations predistortion receivers fixed broadband wireless access wireless local loop private mobile radio military systems microwave links digital and spread-spectrum communication systems features 1700mhz to 3000mhz rf frequency range 1900mhz to 3000mhz lo frequency range 1500mhz to 2000mhz lo frequency range (max2039) dc to 350mhz if frequency range 7.2db conversion loss +33.5dbm input ip3 +23.3dbm input 1db compression point 7.4db noise figure integrated lo buffer integrated rf and lo baluns low -3dbm to +3dbm lo drive built-in spdt lo switch with 43db lo1 to lo2 isolation and 50ns switching time pin compatible with the max2031 815mhz to 995mhz mixer external current-setting resistor provides option for operating mixer in reduced-power/reduced- performance mode lead-free package available max2041 high-linearity, 1700mhz to 3000mhz upconversion/ downconversion mixer with lo buffer/switch ________________________________________________________________ maxim integrated products 1 for pricing delivery, and ordering information please contact maxim/dallas direct! at 1-888-629-4642, or visit maxim? website at www.maxim-ic.com. ordering information 19-3948; rev 0; 1/06 evaluation kit available part temp range pin-package pkg code MAX2041ETP -40 c to +85 c 20 thin qfn-ep* (5mm x 5mm) bulk t2055-3 MAX2041ETP-t -40 c to +85 c 20 thin qfn-ep* (5mm x 5mm) t/r t2055-3 MAX2041ETP+ -40 c to +85 c 20 thin qfn-ep* (5mm x 5mm) lead-free bulk t2055-3 MAX2041ETP+t -40 c to +85 c 20 thin qfn-ep* (5mm x 5mm) lead-free t/r t2055-3 * ep = exposed paddle. t = tape-and-reel package. + = lead free. cdmaone is a trademark of cdma development group. cdma2000 is a registered trademark of telecommunications industry association. pin configuration and typical application circuit appear at end of data sheet.
max2041 high-linearity, 1700mhz to 3000mhz upconversion/ downconversion mixer with lo buffer/switch 2 _______________________________________________________________________________________ absolute maximum ratings stresses beyond those listed under ?bsolute maximum ratings?may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. v cc to gnd ...........................................................-0.3v to +5.5v tap, lobias, losel to gnd ....................-0.3v to (v cc + 0.3v) lo1, lo2, if+, if- to gnd ....................................-0.3v to +0.3v if, lo1, lo2 input power...............................................+15dbm rf input power .................................................................20dbm rf (rf is dc shorted to gnd through a balun) .................50ma continuous power dissipation (t a = +70 c) 20-pin qfn-ep (derated 20mw/ c above +70 c) ..........2.2w ja .................................................................................+33 c/w jc ...................................................................................+8 c/w operating temperature range (note a) ....t c = -40 c to +85 c junction temperature ......................................................+150 c storage temperature range .............................-65 c to +165 c lead temperature (soldering, 10s) .................................+300 c dc electrical characteristics (max2041 typical application circuit , v cc = +4.75v to +5.25v, no rf signals applied, if+ and if- dc grounded through a trans- former, t c = -40 c to +85 c. typical values are at v cc = +5v, t c = +25 c, unless otherwise noted.) parameter symbol conditions min typ max units supply voltage v cc 4.75 5.00 5.25 v supply current i cc 104 145 ma lo_sel input logic low v il 0.8 v lo_sel input logic high v ih 2v note a: t c is the temperature on the exposed paddle of the package. ac electrical characteristics (downconverter operation) (max2041 typical application circuit , v cc = +4.75v to +5.25v, rf and lo ports are driven from 50 ? sources, p lo = -3dbm to +3dbm, p rf = 0dbm, f rf = 1700mhz to 3000mhz, f lo = 1900mhz to 3000mhz, f if = 200mhz, f lo > f rf , t c = -40 c to +85 c, unless otherwise noted. typical values are at v cc = +5v, p rf = 0dbm, p lo = 0dbm, f rf = 1900mhz, f lo = 2100mhz, f if = 200mhz, t c = +25 c, unless otherwise noted.) (note 1) parameter symbol conditions min typ max units rf frequency range f rf 1700 3000 mhz max2041 1900 3000 lo frequency range f lo max2039 1500 2000 mhz if frequency range f if external if transformer dependent dc 350 mhz conversion loss l c p rf < +2dbm 7.2 db loss variation over temperature t c = -40 c to +85 c 0.0075 db/ c input compression point p 1db (note 2) 23.3 dbm input third-order intercept point iip3 two tones: f rf1 = 1900mhz, f rf2 = 1901mhz, p rf = 0dbm/tone, f lo = 2100mhz, p lo = 0dbm 33.5 dbm input ip3 variation over temperature t c = -40 c to +85 c 0.75 db noise figure nf single sideband 7.4 db noise figure under-blocking p rf = 5dbm, f rf = 2000mhz, f lo = 2190mhz, f block = 2100mhz (note 3) 19 db
max2041 high-linearity, 1700mhz to 3000mhz upconversion/ downconversion mixer with lo buffer/switch _______________________________________________________________________________________ 3 parameter symbol conditions min typ max units lo drive -3 +3 dbm 2 x 2 2lo - 2rf, p rf = 0dbm 63 spurious response at if 3 x 3 3lo - 3rf, p rf = 0dbm 69 dbc lo2 selected, 1900mhz < f lo < 2100mhz 49 lo1 to lo2 isolation lo1 selected, 1900mhz < f lo < 2100mhz 43 db maximum lo leakage at rf port p lo = +3dbm (note 4) -18.5 dbm maximum lo leakage at if port p lo = +3dbm -30 dbm minimum rf-to-if isolation 35 db lo switching time 50% of losel to if settled to within 2 50 ns rf port return loss 18 db lo port selected, lo and if terminated 16 lo port return loss lo port unselected, lo and if terminated 26 db if port return loss lo driven at 0dbm, rf terminated into 50 ? 20 db ac electrical characteristics (downconverter operation) (continued) (max2041 typical application circuit , v cc = +4.75v to +5.25v, rf and lo ports are driven from 50 ? sources, p lo = -3dbm to +3dbm, p rf = 0dbm, f rf = 1700mhz to 3000mhz, f lo = 1900mhz to 3000mhz, f if = 200mhz, f lo > f rf , t c = -40 c to +85 c, unless otherwise noted. typical values are at v cc = +5v, p rf = 0dbm, p lo = 0dbm, f rf = 1900mhz, f lo = 2100mhz, f if = 200mhz, t c = +25 c, unless otherwise noted.) (note 1) ac electrical characteristics (upconverter operation) (max2041 typical application circuit , v cc = +4.75v to +5.25v, p lo = -3dbm to +3dbm, p if = 0dbm, f rf = 1700mhz to 3000mhz, f lo = 1900mhz to 3000mhz, f if = 200mhz, f rf = f lo - f if , t c = -40 c to +85 c, unless otherwise noted. typical values are at v cc = +5v, p if = 0dbm, p lo = 0dbm, f rf = 1900mhz, f lo = 2100mhz, f if = 200mhz, t c = +25 c, unless otherwise noted.) (note 1) parameter symbol conditions min typ max units input compression point p 1db (note 2) 23.3 dbm input third-order intercept point iip3 two tones: f if1 = 200mhz, f if2 = 201mhz, p if = 0dbm/tone, f lo = 1900mhz, p lo = 0dbm 33.5 dbm lo - 2if 67 lo 2if spur lo + 2if 65 dbc lo - 3if 75 lo 3if spur lo + 3if 72 dbc output noise floor p out = 0dbm -160 dbm/ hz note 1: all limits include external component losses. output measurements taken at if port for downconverter and rf port for upconverter from the typical application circuit . note 2: compression point characterized. it is advisable not to continuously operate the mixer rf or if input above +15dbm. note 3: measured with external lo source noise filtered so the noise floor is -174dbm/hz. this specification reflects the effects of al l snr degradations in the mixer, including the lo noise as defined in maxim application note 2021 . note 4: refer to the max2043 for improved lo leakage of -52dbm typical.
max2041 high-linearity, 1700mhz to 3000mhz upconversion/ downconversion mixer with lo buffer/switch 4 _______________________________________________________________________________________ conversion loss vs. rf frequency max2041 toc01 rf frequency (mhz) conversion loss (db) 2100 1900 1700 5 6 7 8 9 4 1500 2300 t c = +85 c t c = -40 c t c = +25 c conversion loss vs. rf frequency max2041 toc02 rf frequency (mhz) conversion loss (db) 2100 1900 1700 6 5 7 8 9 4 1500 2300 p lo = -3dbm, 0dbm, +3dbm conversion loss vs. rf frequency max2041 toc03 rf frequency (mhz) conversion loss (db) 2100 1900 1700 6 5 7 8 9 4 1500 2300 v cc = 4.75v, 5.0v, 5.25v input ip3 vs. rf frequency max2041 toc04 rf frequency (mhz) input ip3 (dbm) 2100 1900 1700 31 33 35 37 39 25 27 29 1500 2300 t c = +85 c t c = -40 c t c = +25 c input ip3 vs. rf frequency max2041 toc05 rf frequency (mhz) input ip3 (dbm) 2100 1900 1700 31 33 35 37 39 25 27 29 1500 2300 p lo = 0dbm p lo = -3dbm p lo = +3dbm input ip3 vs. rf frequency max2041 toc06 rf frequency (mhz) input ip3 (dbm) 2100 1900 1700 31 33 35 37 39 25 27 29 1500 2300 v cc = 5.25v v cc = 5.0v v cc = 4.75v noise figure vs. rf frequency max2041 toc07 rf frequency (mhz) noise figure (db) 2350 2200 2050 1900 1750 6 7 8 9 10 5 1600 2500 t c = +85 c t c = -40 c t c = +25 c noise figure vs. rf frequency max2041 toc08 rf frequency (mhz) noise figure (db) 2200 2350 2050 1900 1750 6 7 8 9 10 5 1600 2500 p lo = -3dbm p lo = 0dbm, +3dbm noise figure vs. rf frequency max2041 toc09 rf frequency (mhz) noise figure (db) 2200 2350 2050 1900 1750 6 7 8 9 10 5 1600 2500 v cc = 4.75v, 5.0v, 5.25v typical operating characteristics (max2041 typical application circuit , v cc = +5.0v, p lo = 0dbm, p rf = 0dbm, f lo > f rf , f if = 200mhz, r1 = 549 ? , unless other- wise noted.) downconverter curves
max2041 high-linearity, 1700mhz to 3000mhz upconversion/ downconversion mixer with lo buffer/switch _______________________________________________________________________________________ 5 2lo - 2rf response vs. rf frequency (lo1 selected) max2041 toc10 fundamental rf frequency (mhz) 2lo - 2rf response (dbc) 2100 1900 1700 60 55 50 65 70 75 80 45 1500 2300 t c = +85 c t c = -40 c t c = +25 c p rf = 0dbm max2041 toc11 fundamental rf frequency (mhz) 2lo - 2rf response (dbc) 2100 1900 1700 60 55 50 65 70 75 80 45 1500 2300 p lo = +3dbm p lo = 0dbm p lo = -3dbm p rf = 0dbm 2lo - 2rf response vs. rf frequency (lo1 selected) max2041 toc12 fundamental rf frequency (mhz) 2lo - 2rf response (dbc) 2100 1900 1700 60 55 50 65 70 75 80 45 1500 2300 p rf = 0dbm v cc = 4.75v v cc = 5.0v v cc = 5.25v 2lo - 2rf response vs. rf frequency (lo1 selected) max2041 toc13 fundamental rf frequency (mhz) 2lo - 2rf response (dbc) 2100 1900 1700 60 55 50 65 70 75 85 80 45 1500 2300 t c = +85 c t c = -40 c t c = +25 c p rf = 0dbm 2lo - 2rf response vs. rf frequency (lo2 selected) max2041 toc14 fundamental rf frequency (mhz) 2lo - 2rf response (dbc) 2100 1900 1700 60 55 50 65 70 75 85 80 45 1500 2300 p rf = 0dbm p lo = +3dbm p lo = 0dbm p lo = -3dbm 2lo - 2rf response vs. rf frequency (lo2 selected) max2041 toc15 fundamental rf frequency (mhz) 2lo - 2rf response (dbc) 2100 1900 1700 60 55 50 65 70 75 85 80 45 1500 2300 p rf = 0dbm v cc = 5.25v v cc = 5.0v v cc = 4.75v 2lo - 2rf response vs. rf frequency (lo2 selected) 3lo - 3rf response vs. rf frequency max2041 toc16 fundamental rf frequency (mhz) 3lo - 3rf response (dbc) 2100 1900 1700 60 55 50 65 70 75 85 80 45 1500 2300 t c = +85 c t c = -40 c t c = +25 c p rf = 0dbm 3lo - 3rf response vs. rf frequency max2041 toc17 fundamental rf frequency (mhz) 3lo - 3rf response (dbc) p lo = -3dbm, 0dbm, +3dbm 2100 1900 1700 60 55 50 65 70 75 85 80 45 1500 2300 p rf = 0dbm 3lo - 3rf response vs. rf frequency max2041 toc18 fundamental rf frequency (mhz) 3lo - 3rf response (dbc) 2100 1900 1700 60 55 50 65 70 75 85 80 45 1500 2300 p rf = 0dbm v cc = 5.25v v cc = 5.0v v cc = 4.75v typical operating characteristics (continued) (max2041 typical application circuit , v cc = +5.0v, p lo = 0dbm, p rf = 0dbm, f lo > f rf , f if = 200mhz, r1 = 549 ? , unless other- wise noted.) downconverter curves
max2041 high-linearity, 1700mhz to 3000mhz upconversion/ downconversion mixer with lo buffer/switch 6 _______________________________________________________________________________________ input p 1db vs. rf frequency max2041 toc19 rf frequency (mhz) input p 1db (dbm) 2100 1900 1700 22 21 20 23 24 25 27 26 17 18 19 1500 2300 t c = +85 c t c = -40 c t c = +25 c input p 1db vs. rf frequency max2041 toc20 rf frequency (mhz) input p 1db (dbm) 2100 1900 1700 22 21 20 23 24 25 27 26 17 18 19 1500 2300 p lo = +3dbm p lo = 0dbm p lo = -3dbm input p 1db vs. rf frequency max2041 toc21 rf frequency (mhz) input p 1db (dbm) 2100 1900 1700 22 21 20 23 24 25 27 26 17 18 19 1500 2300 v cc = 5.25v v cc = 5.0v v cc = 4.75v lo switch isolation vs. lo frequency max2041 toc22 lo frequency (mhz) lo switch isolation (db) 2100 2300 1900 1700 40 45 50 55 35 1500 2500 t c = -40 c t c = +85 c t c = +25 c lo switch isolation vs. lo frequency max2041 toc23 lo frequency (mhz) lo switch isolation (db) 2100 2300 1900 1700 40 45 50 55 35 1500 2500 p lo = +3dbm p lo = 0dbm p lo = -3dbm lo switch isolation vs. lo frequency max2041 toc24 lo frequency (mhz) lo switch isolation (db) 2100 2300 1900 1700 40 45 50 55 35 1500 2500 v cc = 4.75v, 5.0v, 5.25v lo leakage at if port vs. lo frequency max2041 toc25 lo frequency (mhz) lo leakage (dbm) -40 -35 -30 -25 -20 -15 -10 -45 2100 2300 1900 1700 2500 t c = +25 c t c = +85 c t c = -40 c lo leakage at if port vs. lo frequency max2041 toc26 lo frequency (mhz) lo leakage (dbm) -40 -35 -30 -25 -20 -15 -10 -45 2100 2300 1900 1700 2500 p lo = +3dbm p lo = 0dbm p lo = -3dbm lo leakage at if port vs. lo frequency max2041 toc27 lo frequency (mhz) lo leakage (dbm) -40 -35 -30 -25 -20 -15 -10 -45 2100 2300 1900 1700 2500 v cc = 5.25v v cc = 5.0v v cc = 4.75v typical operating characteristics (continued) (max2041 typical application circuit , v cc = +5.0v, p lo = 0dbm, p rf = 0dbm, f lo > f rf , f if = 200mhz, r1 = 549 ? , unless other- wise noted.) downconverter curves
max2041 high-linearity, 1700mhz to 3000mhz upconversion/ downconversion mixer with lo buffer/switch _______________________________________________________________________________________ 7 lo leakage at rf port vs. lo frequency max2041 toc28 lo frequency (mhz) lo leakage rf port (dbm) 2100 2300 1900 1700 -25 -20 -15 -10 -30 1500 2500 t c = -40 c t c = +85 c t c = +25 c lo leakage at rf port vs. lo frequency max2041 toc29 lo frequency (mhz) lo leakage rf port (dbm) 2100 2300 1900 1700 -25 -20 -15 -10 -30 1500 2500 p lo = -3dbm, 0dbm, +3dbm lo leakage at rf port vs. lo frequency max2041 toc30 lo frequency (mhz) lo leakage rf port (dbm) 2100 2300 1900 1700 -25 -20 -15 -10 -30 1500 2500 v cc = 5.25v v cc = 5.0v v cc = 4.75v rf-to-if isolation vs. rf frequency max2041 toc31 rf frequency (mhz) rf-to-if isolation (db) 2100 1900 1700 30 35 40 45 50 20 25 1500 2300 t c = +85 c t c = -40 c t c = +25 c rf-to-if isolation vs. rf frequency max2041 toc32 rf frequency (mhz) rf-to-if isolation (db) 2100 1900 1700 30 35 40 45 50 20 25 1500 2300 p lo = -3dbm, 0dbm, +3dbm rf-to-if isolation vs. rf frequency max2041 toc33 rf-to-if isolation (db) 2100 1900 1700 30 35 40 45 50 20 25 1500 2300 v cc = 4.75v, 5.0v, 5.25v rf frequency (mhz) rf port return loss vs. rf frequency max2041 toc34 rf frequency (mhz) rf port return loss (db) p lo = -3dbm, 0dbm, +3dbm 2500 2000 1500 25 30 35 20 15 10 0 5 40 1000 3000 if port return loss vs. if frequency max2041 toc35 if frequency (mhz) if port return loss (db) 250 200 100 150 25 30 35 20 15 10 0 5 40 45 50 50 300 350 v cc = 4.75v, 5.0v, 5.25v typical operating characteristics (continued) (max2041 typical application circuit , v cc = +5.0v, p lo = 0dbm, p rf = 0dbm, f lo > f rf , f if = 200mhz, r1 = 549 ? , unless other- wise noted.) downconverter curves
max2041 high-linearity, 1700mhz to 3000mhz upconversion/ downconversion mixer with lo buffer/switch 8 _______________________________________________________________________________________ typical operating characteristics (continued) (max2041 typical application circuit , v cc = +5.0v, p lo = 0dbm, p rf = 0dbm, f lo > f rf , f if = 200mhz, r1 = 549 ? , unless other- wise noted.) lo selected return loss vs. lo frequency max2041 toc36 lo frequency (mhz) lo selected return loss (db) p lo = +3dbm p lo = 0dbm p lo = -3dbm 2500 2000 1500 25 30 35 20 15 10 0 5 40 1000 3000 lo unselected return loss vs. rf frequency max2041 toc37 lo frequency (mhz) lo unselected return loss (db) 2500 2000 1500 40 30 20 10 0 60 50 1000 3000 p lo = -3dbm, 0dbm, +3dbm supply current vs. temperature (t c ) max2041 toc38 temperature ( c) supply current (ma) 35 10 -15 90 100 110 120 130 70 80 -40 60 85 v cc = 5.25v v cc = 5.0v v cc = 4.75v downconverter curves typical operating characteristics (max2041 typical application circuit , v cc = +5.0v, p lo = 0dbm, p if = 0dbm, f rf = f lo - f if , f if = 200mhz, r1 = 549 ? , unless otherwise noted.) conversion loss vs. rf frequency max2041 toc39 rf frequency (mhz) conversion loss (db) 2000 1900 1800 1700 1600 5 6 7 8 9 4 1500 2200 2100 t c = +85 c t c = -40 c t c = +25 c conversion loss vs. rf frequency max2041 toc40 rf frequency (mhz) conversion loss (db) 2000 1900 1800 1700 1600 6 7 8 9 4 5 1500 2200 2100 p lo = -3dbm, 0dbm, +3dbm conversion loss vs. rf frequency max2041 toc41 rf frequency (mhz) conversion loss (db) 2000 1900 1800 1700 1600 6 7 8 9 4 5 1500 2200 2100 v cc = 4.75v, 5.0v, 5.25v upconverter curves
max2041 high-linearity, 1700mhz to 3000mhz upconversion/ downconversion mixer with lo buffer/switch _______________________________________________________________________________________ 9 typical operating characteristics (continued) (max2041 typical application circuit , v cc = +5.0v, p lo = 0dbm, p if = 0dbm, f rf = f lo - f if , f if = 200mhz, r1 = 549 ? , unless otherwise noted.) input ip3 vs. rf frequency max2041 toc42 rf frequency (mhz) input ip3 (dbm) 2000 1900 1800 1700 1600 31 33 27 29 35 37 39 25 1500 2200 2100 t c = +85 c t c = -40 c t c = +25 c input ip3 vs. rf frequency max2041 toc43 rf frequency (mhz) input ip3 (dbm) 2000 1900 1800 1700 1600 31 33 27 29 35 37 39 25 1500 2200 2100 p lo = -3dbm, 0dbm, +3dbm input ip3 vs. rf frequency max2041 toc44 rf frequency (mhz) input ip3 (dbm) 2000 1900 1800 1700 1600 31 33 27 29 35 37 39 25 1500 2200 2100 v cc = 5.25v v cc = 5.0v v cc = 4.75v max2041 toc45 fundamental rf frequency (mhz) lo + 2if rejection (dbc) 2000 1900 1800 1700 1600 1500 2200 2100 t c = +85 c t c = -40 c t c = +25 c p if = 0dbm 60 65 50 45 55 70 75 80 85 lo + 2if rejection vs. rf frequency (lo1 selected) max2041 toc46 fundamental rf frequency (mhz) lo + 2if rejection (dbc) 2000 1900 1800 1700 1600 60 65 50 55 70 75 80 45 1500 2200 2100 p lo = -3dbm p lo = +3dbm p lo = 0dbm p if = 0dbm lo + 2if rejection vs. rf frequency (lo1 selected) max2041 toc47 fundamental rf frequency (mhz) lo + 2if rejection (dbc) 2000 1900 1800 1700 1600 60 65 50 55 70 75 80 45 1500 2200 2100 v cc = 4.75v, 5.0v, 5.25v p if = 0dbm lo + 2if rejection vs. rf frequency (lo1 selected) max2041 toc48 fundamental rf frequency (mhz) lo + 2if rejection (dbc) 2000 1900 1800 1700 1600 60 65 50 55 70 75 80 45 1500 2200 2100 t c = +85 c p if = 0dbm t c = -40 c t c = +25 c lo + 2if rejection vs. rf frequency (lo2 selected) max2041 toc49 fundamental rf frequency (mhz) lo + 2if rejection (dbc) 2000 1900 1800 1700 1600 60 65 50 55 70 75 80 45 1500 2200 2100 p if = 0dbm p lo = +3dbm p lo = 0dbm p lo = -3dbm lo + 2if rejection vs. rf frequency (lo2 selected) max2041 toc50 fundamental rf frequency (mhz) lo + 2if rejection (dbc) 2000 1900 1800 1700 1600 60 65 50 55 70 75 80 45 1500 2200 2100 v cc = 4.75v, 5.0v, 5.25v p if = 0dbm lo + 2if rejection vs. rf frequency (lo2 selected) upconverter curves
max2041 high-linearity, 1700mhz to 3000mhz upconversion/ downconversion mixer with lo buffer/switch 10 ______________________________________________________________________________________ typical operating characteristics (continued) (max2041 typical application circuit , v cc = +5.0v, p lo = 0dbm, p if = 0dbm, f rf = f lo - f if , f if = 200mhz, r1 = 549 ? , unless otherwise noted.) max2041 toc51 fundamental rf frequency (mhz) lo - 2if rejection (dbc) 2000 1900 1800 1700 1600 60 65 50 55 70 75 80 45 1500 2200 2100 t c = +85 c p if = 0dbm t c = -40 c t c = +25 c lo - 2if rejection vs. rf frequency (lo1 selected) max2041 toc52 fundamental rf frequency (mhz) lo - 2if rejection (dbc) 2000 1900 1800 1700 1600 60 65 50 55 70 75 80 85 45 1500 2200 2100 p if = 0dbm p lo = +3dbm p lo = 0dbm p lo = -3dbm lo - 2if rejection vs. rf frequency (lo1 selected) max2041 toc53 fundamental rf frequency (mhz) lo - 2if rejection (dbc) 2000 1900 1800 1700 1600 60 65 50 55 70 75 80 45 1500 2200 2100 v cc = 4.75v, 5.0v, 5.25v v cc = 5.25v v cc = 4.75v p if = 0dbm lo - 2if rejection vs. rf frequency (lo1 selected) max2041 toc54 fundamental rf frequency (mhz) lo - 2if rejection (dbc) 2000 1900 1800 1700 1600 60 65 50 55 70 75 80 85 45 1500 2200 2100 t c = +85 c p if = 0dbm t c = -40 c t c = +25 c lo - 2if rejection vs. rf frequency (lo2 selected) max2041 toc55 fundamental rf frequency (mhz) lo - 2if rejection (dbc) 2000 1900 1800 1700 1600 60 65 50 55 70 75 80 85 45 1500 2200 2100 p if = 0dbm p lo = +3dbm p lo = 0dbm p lo = -3dbm lo - 2if rejection vs. rf frequency (lo2 selected) max2041 toc56 fundamental rf frequency (mhz) lo - 2if rejection (dbc) 2000 1900 1800 1700 1600 60 65 50 55 70 75 80 45 1500 2200 2100 v cc = 5.25v v cc = 4.75v p if = 0dbm v cc = 5.0v lo - 2if rejection vs. rf frequency (lo2 selected) lo + 3if rejection vs. rf frequency max2041 toc57 fundamental rf frequency (mhz) lo + 3if rejection (dbc) 2000 1900 1800 1700 1600 60 65 50 55 70 75 80 85 90 1500 2200 2100 t c = +85 c p if = 0dbm t c = -40 c t c = +25 c lo + 3if rejection vs. rf frequency max2041 toc58 fundamental rf frequency (mhz) lo + 3if rejection (dbc) 2000 1900 1800 1700 1600 60 65 50 55 70 75 80 85 90 1500 2200 2100 p if = 0dbm p lo = +3dbm p lo = 0dbm p lo = -3dbm lo + 3if rejection vs. rf frequency max2041 toc59 fundamental rf frequency (mhz) lo + 3if rejection (dbc) 2000 1900 1800 1700 1600 60 65 50 55 70 75 80 85 90 1500 2200 2100 p if = 0dbm v cc = 5.25v v cc = 4.75v v cc = 5.0v upconverter curves
max2041 high-linearity, 1700mhz to 3000mhz upconversion/ downconversion mixer with lo buffer/switch ______________________________________________________________________________________ 11 lo - 3if rejection vs. rf frequency max2041 toc60 fundamental rf frequency (mhz) lo - 3if rejection (dbc) 2000 1900 1800 1700 1600 60 65 50 55 70 75 80 85 90 1500 2200 2100 t c = +85 c p if = 0dbm t c = -40 c t c = +25 c lo - 3if rejection vs. rf frequency max2041 toc61 fundamental rf frequency (mhz) lo - 3if rejection (dbc) 2000 1900 1800 1700 1600 60 65 50 55 70 75 80 85 90 1500 2200 2100 p if = 0dbm p lo = +3dbm p lo = 0dbm p lo = -3dbm lo - 3if rejection vs. rf frequency max2041 toc62 fundamental rf frequency (mhz) lo - 3if rejection (dbc) 2000 1900 1800 1700 1600 60 65 50 55 70 75 80 85 90 1500 2200 2100 p if = 0dbm v cc = 5.25v v cc = 4.75v v cc = 5.0v lo leakage at rf port vs. lo frequency max2041 toc63 lo frequency (mhz) lo leakage at rf port (dbm) 2200 2100 2000 1900 1800 -25 -20 -15 -10 -30 1700 2400 2300 t c = -40 c, +25 c, +85 c lo leakage at rf port vs. lo frequency max2041 toc64 lo frequency (mhz) lo leakage at rf port (dbm) 2200 2100 2000 1900 1800 -25 -20 -15 -10 -30 1700 2400 2300 p lo = -3dbm, 0dbm, +3dbm lo leakage at rf port vs. lo frequency max2041 toc65 lo frequency (mhz) lo leakage at rf port (dbm) 2200 2100 2000 1900 1800 -25 -20 -15 -10 -30 1700 2400 2300 v cc = 5.25v v cc = 4.75v v cc = 5.0v max2041 toc66 lo frequency (mhz) if leakage (dbm) -70 -90 -80 -60 -50 -40 t c = +85 c t c = -40 c t c = +25 c if leakage at rf vs. lo frequency 2200 2100 2000 1900 1800 1700 2400 2300 max2041 toc67 lo frequency (mhz) if leakage (dbm) -70 -90 -80 -60 -50 -40 if leakage at rf vs. lo frequency 2200 2100 2000 1900 1800 1700 2400 2300 p lo = -3dbm, 0dbm, +3dbm max2041 toc68 lo frequency (mhz) if leakage (dbm) -70 -90 -80 -60 -50 -40 if leakage at rf vs. lo frequency 2200 2100 2000 1900 1800 1700 2400 2300 v cc = 5.25v v cc = 4.75v v cc = 5.0v typical operating characteristics (continued) (max2041 typical application circuit , v cc = +5.0v, p lo = 0dbm, p if = 0dbm, f rf = f lo - f if , f if = 200mhz, r1 = 549 ? , unless otherwise noted.) upconverter curves
max2041 high-linearity, 1700mhz to 3000mhz upconversion/ downconversion mixer with lo buffer/switch 12 ______________________________________________________________________________________ detailed description the max2041 can operate either as a downconverter or an upconverter mixer that provides 7.2db of conver- sion loss with a typical 7.4db noise figure. iip3 is +33.5dbm for both upconversion and downconversion operation. the integrated baluns and matching circuitry allow for 50 ? single-ended interfaces to the rf port and two lo ports. the rf port can be used as an input for downconversion or an output for upconversion. a single-pole, double-throw (spdt) switch provides 50ns switching time between the two lo inputs with 43db of lo-to-lo isolation. furthermore, the integrated lo buffer provides a high drive level to the mixer core, reducing the lo drive required at the max2041 s inputs to a range of -3dbm to +3dbm. the if port incor- porates a differential output for downconversion, which is ideal for providing enhanced iip2 performance. for upconversion, the if port is a differential input. specifications are guaranteed over broad frequency ranges to allow for use in umts, cdma2000, 2g/2.5g/3g dcs 1800, pcs 1900, and wimax base stations. the max2041 is specified to operate over an rf frequency range of 1700mhz to 3000mhz, an lo frequency range of 1900mhz to 3000mhz, and an if frequency range of dc to 350mhz. operation beyond these ranges is pos- sible; see the typical operating characteristics for additional details. this device can operate equally well in low-side lo injec- tion applications as long as the lo frequency range is between 1900mhz and 3000mhz. if an lo frequency range below 1900mhz is desired, refer to the max2039. rf port and balun for using the max2041 as a downconverter, the rf input is internally matched to 50 ? , requiring no external match- ing components. a dc-blocking capacitor is required since the input is internally dc shorted to ground through the on-chip balun. the rf return loss is typically better than 17db over a 1400mhz to 3000mhz frequency range. for upconverter operation, the rf port is a single-ended output similarly matched to 50 ? . lo inputs, buffer, and balun the max2041 can be used for either high-side or low- side injection applications with a 1900mhz to 3000mhz lo frequency range. for a device with a 1500mhz to 2000mhz lo frequency range, refer to the max2039 data sheet. as an added feature, the max2041 includes an internal lo spdt switch that can be used for frequen- cy-hopping applications. the switch selects one of the two single-ended lo ports, allowing the external oscillator to settle on a particular frequency before it is switched in. lo switching time is typically less than 50ns, which is more than adequate for virtually all gsm applications. if frequency hopping is not employed, set the switch to either of the lo inputs. the switch is controlled by a digital input (losel): logic-high selects lo2, logic-low selects lo1. to avoid damage to the part, voltage must pin description pin name function 1, 6, 8, 14 v cc power-supply connection. bypass each v cc pin to gnd with capacitors as shown in the typical application circuit . 2rf single-ended 50 ? rf input/output. this port is internally matched and dc shorted to gnd through a balun. 3 tap center tap of the internal rf balun. bypass to gnd with capacitors close to the ic, as shown in the typical application circuit . 4, 5, 10, 12, 13, 16, 17, 20 gnd ground 7 lobias bias resistor for internal lo buffer. connect a 549 ? 1% resistor from lobias to the power supply. 9 losel local oscillator select. logic control input for selecting lo1 or lo2. 11 lo1 local oscillator input 1. drive losel low to select lo1. 15 lo2 local oscillator input 2. drive losel high to select lo2. 18, 19 if-, if+ differential if input/outputs ep gnd exposed ground paddle. solder the exposed paddle to the ground plane using multiple vias.
max2041 high-linearity, 1700mhz to 3000mhz upconversion/ downconversion mixer with lo buffer/switch ______________________________________________________________________________________ 13 max2041 max2041 be applied to v cc before digital logic is applied to losel (see the absolute maximum ratings ). lo1 and lo2 inputs are internally matched to 50 ? , requiring only a 22pf dc-blocking capacitor. a two-stage internal lo buffer allows a wide-input power range for the lo drive. the on-chip low-loss balun, along with an lo buffer, drives the double-balanced mixer. all interfacing and matching components from the lo inputs to the if outputs are integrated on chip. high-linearity mixer the core of the max2041 is a double-balanced, high- performance passive mixer. exceptional linearity is pro- vided by the large lo swing from the on-chip lo buffer. differential if the max2041 mixer has an if frequency range of dc to 350mhz. note that these differential ports are ideal for providing enhanced iip2 performance. single-ended if applications require a 1:1 balun to transform the 50 ? dif- ferential if impedance to a 50 ? single-ended system. after the balun, the if return loss is better than 15db. the differential if is used as an input port for upconvert- er operation. the user can use a differential if amplifier following the mixer but a dc block is required on both if pins. in this configuration, the if+ and if- pins need to be returned to ground through a high resistance (about 1k ? ). this ground return can also be accomplished by grounding the rf tap (pin 3) and ac-coupling the if+ and if- ports (pins 19 and 18). applications information input and output matching the rf and lo inputs are internally matched to 50 ? . no matching components are required. return loss at the rf port is typically better than 17db over a 1400mhz to 3000mhz frequency range, and return loss at the lo ports is typically better than 16db over a 1900mhz to 3000mhz frequency range. rf and lo inputs require only dc-blocking capacitors for interfacing. the if output impedance is 50 ? (differential). for eval- uation, an external low-loss 1:1 (impedance ratio) balun transforms this impedance to a 50 ? single-ended out- put (see the typical application circuit ). bias resistor bias current for the lo buffer is optimized by fine tun- ing resistor r1. if reduced current is required at the expense of performance, contact the factory for details. if the 1% bias resistor values are not readily available, substitute standard 5% values. layout considerations a properly designed pc board is an essential part of any rf/microwave circuit. keep rf signal lines as short as possible to reduce losses, radiation, and induc- tance. for the best performance, route the ground pin traces directly to the exposed pad under the package. the pc board exposed pad must be connected to the ground plane of the pc board. it is suggested that mul- tiple vias be used to connect this pad to the lower-level ground planes. this method provides a good rf/ther- mal conduction path for the device. solder the exposed pad on the bottom of the device package to the pc board. the max2041 evaluation kit can be used as a reference for board layout. gerber files are available upon request at www.maxim-ic.com. power-supply bypassing proper voltage-supply bypassing is essential for high- frequency circuit stability. bypass each v cc pin and tap with the capacitors shown in the typical application circuit; see table 1. place the tap bypass capacitor to ground within 100 mils of the tap pin. exposed pad rf/thermal considerations the ep of the max2041 s 20-pin thin qfn-ep package provides a low thermal-resistance path to the die. it is important that the pc board on which the max2041 is mounted be designed to conduct heat from the ep. in addition, provide the ep with a low-inductance path to electrical ground. the ep must be soldered to a ground plane on the pc board, either directly or through an array of plated via holes. component value description c1 4pf microwave capacitor (0603) c4 10pf microwave capacitor (0603) c2, c6, c7, c8, c10, c12 22pf microwave capacitors (0603) c3, c5, c9, c11 0.01f microwave capacitors (0603) r1 549 ? 1% resistor (0603) t1 1:1 balun if balun with dc grounded ports m/a-com mabaes0029 u1 max2041 maxim ic table 1. component list referring to the typical application circuit
max2041 high-linearity, 1700mhz to 3000mhz upconversion/ downconversion mixer with lo buffer/switch 14 ______________________________________________________________________________________ 20 19 gnd if+ if- gnd gnd 7 8 9 10 11 12 v cc lobias v cc losel gnd 13 14 15 16 17 18 lo1 gnd gnd v cc lo2 6 5 4 3 2 1 gnd gnd tap rf v cc top view max2041 pin configuration typical application circuit 20 19 gnd if+ if- gnd gnd 7 8 9 10 11 12 v cc v cc lobias v cc v cc losel losel input gnd 13 14 15 16 17 18 lo1 gnd gnd lo2 input v cc lo2 6 5 4 3 2 1 gnd gnd tap rf c2 c3 v cc v cc max2041 v cc c4 c1 c12 lo1 input c10 c5 c6 c7 r1 c11 t1 4 5 1 3 if c8 c9 rf chip information process: sige bicmos
max2041 high-linearity, 1700mhz to 3000mhz upconversion/ downconversion mixer with lo buffer/switch ______________________________________________________________________________________ 15 package information (the package drawing(s) in this data sheet may not reflect the most current specifications. for the latest package outline info rmation, go to www.maxim-ic.com/packages .) qfn thin.eps d2 (nd-1) x e e d c pin # 1 i.d. (ne-1) x e e/2 e 0.08 c 0.10 c a a1 a3 detail a e2/2 e2 0.10 m c a b pin # 1 i.d. b 0.35x45? d/2 d2/2 l c l c e e l c c l k l l detail b l l1 e aaaaa marking i 1 2 21-0140 package outline, 16, 20, 28, 32, 40l thin qfn, 5x5x0.8mm -drawing not to scale- l e/2
max2041 high-linearity, 1700mhz to 3000mhz upconversion/ downconversion mixer with lo buffer/switch maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circu it patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. 16 ____________________maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 ? 2006 maxim integrated products printed usa is a registered trademark of maxim integrated products, inc. package information (continued) (the package drawing(s) in this data sheet may not reflect the most current specifications. for the latest package outline info rmation, go to www.maxim-ic.com/packages .) common dimensions max. exposed pad variations d2 nom. min. min. e2 nom. max. ne nd pkg. codes 1. dimensioning & tolerancing conform to asme y14.5m-1994. 2. all dimensions are in millimeters. angles are in degrees. 3. n is the total number of terminals. 4. the terminal #1 identifier and terminal numbering convention shall conform to jesd 95-1 spp-012. details of terminal #1 identifier are optional, but must be located within the zone indicated. the terminal #1 identifier may be either a mold or marked feature. 5. dimension b applies to metallized terminal and is measured between 0.25 mm and 0.30 mm from terminal tip. 6. nd and ne refer to the number of terminals on each d and e side respectively. 7. depopulation is possible in a symmetrical fashion. 8. coplanarity applies to the exposed heat sink slug as well as the terminals. 9. drawing conforms to jedec mo220, except exposed pad dimension for t2855-3 and t2855-6. notes: symbol pkg. n l1 e e d b a3 a a1 k 10. warpage shall not exceed 0.10 mm. jedec 0.70 0.80 0.75 4.90 4.90 0.25 0.25 0 -- 4 whhb 4 16 0.35 0.30 5.10 5.10 5.00 0.80 bsc. 5.00 0.05 0.20 ref. 0.02 min. max. nom. 16l 5x5 l 0.30 0.50 0.40 -- - -- - whhc 20 5 5 5.00 5.00 0.30 0.55 0.65 bsc. 0.45 0.25 4.90 4.90 0.25 0.65 - - 5.10 5.10 0.35 20l 5x5 0.20 ref. 0.75 0.02 nom. 0 0.70 min. 0.05 0.80 max. -- - whhd-1 28 7 7 5.00 5.00 0.25 0.55 0.50 bsc. 0.45 0.25 4.90 4.90 0.20 0.65 - - 5.10 5.10 0.30 28l 5x5 0.20 ref. 0.75 0.02 nom. 0 0.70 min. 0.05 0.80 max. -- - whhd-2 32 8 8 5.00 5.00 0.40 0.50 bsc. 0.30 0.25 4.90 4.90 0.50 - - 5.10 5.10 32l 5x5 0.20 ref. 0.75 0.02 nom. 0 0.70 min. 0.05 0.80 max. 0.20 0.25 0.30 down bonds allowed yes 3.10 3.00 3.20 3.10 3.00 3.20 t2055-3 3.10 3.00 3.20 3.10 3.00 3.20 t2055-4 t2855-3 3.15 3.25 3.35 3.15 3.25 3.35 t2855-6 3.15 3.25 3.35 3.15 3.25 3.35 t2855-4 2.60 2.70 2.80 2.60 2.70 2.80 t2855-5 2.60 2.70 2.80 2.60 2.70 2.80 t2855-7 2.60 2.70 2.80 2.60 2.70 2.80 3.20 3.00 3.10 t3255-3 3 3.20 3.00 3.10 3.20 3.00 3.10 t3255-4 3 3.20 3.00 3.10 no no no no yes yes yes yes 3.20 3.00 t1655-3 3.10 3.00 3.10 3.20 no no 3.20 3.10 3.00 3.10 t1655n-1 3.00 3.20 3.35 3.15 t2055-5 3.25 3.15 3.25 3.35 yes 3.35 3.15 t2855n-1 3.25 3.15 3.25 3.35 no 3.35 3.15 t2855-8 3.25 3.15 3.25 3.35 yes 3.20 3.10 t3255n-1 3.00 no 3.20 3.10 3.00 l 0.40 0.40 ** ** ** ** ** ** ** ** ** ** ** ** ** ** see common dimensions table ? 0.15 11. marking is for package orientation reference only. i 2 2 21-0140 package outline, 16, 20, 28, 32, 40l thin qfn, 5x5x0.8mm -drawing not to scale- 12. number of leads shown are for reference only. 3.30 t4055-1 3.20 3.40 3.20 3.30 3.40 ** yes 0.05 0 0.02 0.60 0.40 0.50 10 ----- 0.30 40 10 0.40 0.50 5.10 4.90 5.00 0.25 0.35 0.45 0.40 bsc. 0.15 4.90 0.25 0.20 5.00 5.10 0.20 ref. 0.70 min. 0.75 0.80 nom. 40l 5x5 max. 13. lead centerlines to be at true position as defined by basic dimension "e", ? 0.05. t1655-2 ** yes 3.20 3.10 3.00 3.10 3.00 3.20 t3255-5 yes 3.00 3.10 3.00 3.20 3.20 3.10 ** exceptions

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