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for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim's website at www.maxim-ic.com. general description the MAX2029 high-linearity passive upconverter or downconverter mixer is designed to provide +36.5dbm iip3, 6.7db nf, and 6.5db conversion loss for an 815mhz to 1000mhz rf frequency range to support gsm/cellular base-station transmitter or receiver applications. with a 570mhz to 900mhz lo frequency range, this particular mixer is ideal for low-side lo injection architectures. for a pin-to-pin-compatible mixer meant for high-side lo injec- tion, refer to the max2031 data sheet. in addition to offering excellent linearity and noise perfor- mance, the MAX2029 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 MAX2029 requires a nominal lo drive of 0dbm, and supply current is guaranteed to be below 100ma. the MAX2029 is pin compatible with the max2039, max2041, max2042, max2044 series of 1700mhz to 2200mhz, 2000mhz to 3000mhz, and 3200mhz to 3900mhz mixers, making this family of passive upcon- verters and downconverters ideal for applications where a common printed-circuit board (pcb) layout is used for multiple frequency bands. the MAX2029 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 features ? 815mhz to 1000mhz rf frequency range ? 570mhz to 900mhz lo frequency range ? 960mhz to 1180mhz lo frequency range (refer to the max2031 data sheet) ? dc to 250mhz if frequency range ? 6db/6.5db (upconverter/downconverter) conversion loss ? 36.5dbm/39dbm (downconverter/upconverter) input ip3 ? +25dbm/+27dbm (upconverter/downconverter) input 1db compression point ? 6.7db noise figure ? integrated lo buffer ? integrated rf and lo baluns ? low -3dbm to +3dbm lo drive ? built-in spdt lo switch with 53db isolation and 50ns switching time ? pin compatible with the max2039/max2041 1700mhz to 2200mhz mixers ? external current-setting resistor provides option for operating mixer in reduced-power/reduced- performance mode ? lead-free package available MAX2029 high-linearity, 815mhz to 1000mhz upconversion/ downconversion mixer with lo buffer/switch ________________________________________________________________ maxim integrated products 1 19-1017; rev 0; 10/07 cdma2000 is a registered trademark of telecommunications industry association. iden is a registered trademark of motorola, inc. cellular band wcdma and cdma2000 base stations gsm 850/gsm 900 2g and 2.5g edge base stations tdma and integrated digital enhanced network (iden ) base stations phs/pas base stations wimax base stations and customer premise equipment predistortion receivers microwave and fixed broadband wireless access wireless local loop private mobile radios military systems microwave links digital and spread- spectrum communication systems ordering information part temp range pin-package pkg code m ax 2029e tp /- t - 40c to + 85 c 20 thi n qfn- e p * ( 5mm x 5m m ) t2055- 3 m ax 2029e tp + /+ t - 40c to + 85 c 20 thi n qfn- e p * ( 5mm x 5m m ) t2055- 3 t = tape and reel. * ep = exposed paddle. + denotes lead-free package. MAX2029 top view 4 5 3 2 12 11 13 lobias losel gnd 14 v cc if+ gnd gnd gnd 67 tap 910 20 19 17 16 gnd gnd v cc gnd gnd lo1 v cc if- 8 18 rf 1 15 lo2 v cc e.p. pin configuration/ functional diagram
MAX2029 high-linearity, 815mhz to 1000mhz 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 rf (rf is dc shorted to gnd through a balun)..................50ma lo1, lo2 to gnd ..................................................-0.3v to +0.3v if+, if- to gnd ...........................................-0.3v to (v cc + 0.3v) tap to gnd ...........................................................-0.3v to +1.4v losel to gnd ...........................................-0.3v to (v cc + 0.3v) lobias to gnd..........................................-0.3v to (v cc + 0.3v) rf, lo1, lo2 input power* ............................................+20dbm continuous power dissipation (t c = +85?) (note a) 20-pin thin qfn-ep................................................................5w ja (note b)....................................................................+38?/w jc .................................................................................+13?/w operating temperature range (note c) ....t c = -40? to +85? maximum junction temperature .....................................+150? storage temperature range .............................-65? to +150? lead temperature (soldering, 10s) .................................+300? note a: based on junction temperature t j = t c + ( jc x v cc x i cc ). this formula can be used when the temperature of the exposed paddle is known while the device is soldered down to a pcb. see the applications information section for details. the junction temperature must not exceed +150?. note b: junction temperature t j = t a + ( ja x v cc x i cc ). this formula can be used when the ambient temperature of the ev kit pcb is known. the junction temperature must not exceed +150?. see the applications information section for details. note c: t c is the temperature on the exposed paddle of the package. t a is the ambient temperature of the device and pcb. ac electrical characteristics ( typical application circuit , c5 = 3.3pf, l1 and c4 not used, 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 = 815mhz to 1000mhz, f lo = 570mhz to 900mhz, f if = 90mhz, f lo < f rf , t c = -40? to +85c, unless otherwise noted. typical values are at v cc = +5v, p lo = 0dbm, f rf = 920mhz, f lo = 830mhz, f if = 90mhz, t c = +25?, unless otherwise noted.) (note 1) parameter symbol conditions min typ max units rf frequency range f rf (note 2) 815 1000 mhz lo frequency range f lo (note 2) 570 900 mhz if frequency range f if external if transformer dependence (note 2) dc 250 mhz lo drive p lo (note 2) -3 +3 dbm lo2 selected, p lo = +3dbm, t c = +25?, f rf = 920mhz to 960mhz, f lo = 830mhz to 870mhz 48 53 lo1-to-lo2 isolation (note 3) lo1 selected, p lo = +3dbm, t c = +25?, f rf = 920mhz to 960mhz, f lo = 830mhz to 870mhz 50 56 db maximum lo leakage at rf port p lo = +3dbm -17 dbm maximum lo leakage at if port p lo = +3dbm, f rf = 920mhz to 960mhz, f lo = 830mhz to 870mhz (note 3) -29.5 -23 dbm *maximum reliable continuous input power applied to the rf, lo, and if ports of this device is +15dbm from a 50 source. dc electrical characteristics ( typical application circuit , v cc = +4.75v to +5.25v, no rf signals applied, t c = -40? to +85?. if+ and if- are dc grounded through an if balun. typical values are at v cc = +5v, t c = +25?, 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 85 100 ma losel input logic-low v il 0.8 v losel input logic-high v ih 2v input current i ih , i il ?.01 ?
MAX2029 high-linearity, 815mhz to 1000mhz upconversion/ downconversion mixer with lo buffer/switch _______________________________________________________________________________________ 3 ac electrical characteristics (downconverter operation) ( typical application circuit , c5 = 3.3pf, l1 and c4 not used, 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 = 815mhz to 1000mhz, f lo = 570mhz to 900mhz, f if = 90mhz, f lo < f rf , t c = -40? to +85?, unless otherwise noted. typical values are at v cc = +5v, p lo = 0dbm, f rf = 920mhz, f lo = 830mhz, f if = 90mhz, t c = +25?, unless otherwise noted.) (note 1) parameter symbol conditions min typ max units conversion loss g c 6.5 db flatness over any one of three frequency bands (f if = 90mhz): f rf = 827mhz to 849mhz f rf = 869mhz to 894mhz f rf = 880mhz to 915mhz ?.2 conversion loss flatness (note 3) f rf = 920mhz to 960mhz ?.4 db t c = +25? to -40? -0.28 conversion loss variation over temperature t c = +25? to +85? 0.35 db input compression point p 1db (note 4) 27 dbm input third-order intercept point iip3 f rf1 = 920mhz, f rf2 = 921mhz, p rf = 0dbm/tone, p lo = 0dbm, t c = +25? (note 3) 33 36.5 dbm t c = +25? to -40? -0.6 input ip3 variation over temperature iip3 t c = +25? to +85? 0.4 db output third-order intercept point oip3 f rf1 = 920mhz, f rf2 = 921mhz, p rf = 0dbm/tone, p lo = 0dbm, t c = +25c (note 3) 26 30 dbm 2 x 2 2rf - 2lo, p rf = -10dbm, f rf = 920mhz to 960mhz (f lo = 830mhz to 870mhz), t c = +25c 62 72 spurious response at if (note 3) 3 x 3 3rf - 3lo, p rf = -10dbm 96 dbc noise figure nf single sideband 6.7 db p blocker = +8dbm 15 noise figure under blocking (note 5) p blocker = +12dbm 19 db ac electrical characteristics (continued) ( typical application circuit , c5 = 3.3pf, l1 and c4 not used, 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 = 815mhz to 1000mhz, f lo = 570mhz to 900mhz, f if = 90mhz, f lo < f rf , t c = -40? to +85c, unless otherwise noted. typical values are at v cc = +5v, p lo = 0dbm, f rf = 920mhz, f lo = 830mhz, f if = 90mhz, t c = +25?, unless otherwise noted.) (note 1) parameter symbol conditions min typ max units lo switching time 50% of losel to if, settled within 2 degrees 50 ns minimum rf-to-if isolation f rf = 920mhz to 960mhz, f lo = 830mhz to 870mhz (note 3) 38 47 db rf port return loss 18 db lo1/lo2 port selected, lo2/lo1, rf, and if terminated into 50 19 lo port return loss lo1/lo2 port unselected, lo2/lo1, rf, and if terminated into 50 31 db if port return loss lo driven at 0dbm, rf terminated into 50 23 db
MAX2029 high-linearity, 815mhz to 1000mhz upconversion/ downconversion mixer with lo buffer/switch 4 _______________________________________________________________________________________ note 1: all limits include external component losses. output measurements are taken at if or rf port of the typical application circuit . note 2: operation outside this range is possible, but with degraded performance of some parameters. note 3: guaranteed by design. note 4: compression point characterized. it is advisable not to continuously operate the mixer rf/if inputs above +15dbm. note 5: measured with external lo source noise filtered, so its noise floor is -174dbm/hz at 100mhz offset. this specification reflects the effects of all snr degradations in the mixer, including the lo noise as defined in maxim application note 2021. ac electrical characteristics (upconverter operation) ( typical application circuit , l1 = 4.7nh, c4 = 4.7pf, c5 not used, v cc = +4.75v to +5.25v, rf and lo ports are driven from 50 sources, p lo = -3dbm to +3dbm, p if = 0dbm, f rf = 815mhz to 1000mhz, f lo = 570mhz to 900mhz, f if = 90mhz, f lo < f rf , t c = -40? to +85?, unless otherwise noted. typical values are at v cc = +5v, p lo = 0dbm, f rf = 920mhz, f lo = 830mhz, f if = 90mhz, t c = +25?, unless otherwise noted.) (note 1) parameter symbol conditions min typ max units conversion loss g c 6db conversion loss flatness flatness over any one of four frequency bands (f if = 90mhz): f rf = 827mhz to 849mhz f rf = 869mhz to 894mhz f rf = 880mhz to 915mhz f rf = 920mhz to 960mhz ?.3 db t c = +25? to -40? -0.4 conversion loss variation over temperature t c = +25? to +85? 0.3 db input compression point p 1db (note 4) 25 dbm input third-order intercept point iip3 f if1 = 90mhz, f if2 = 91mhz (results in f rf1 = 920mhz, f rf2 = 921mhz), p if = 0d bm /tone, p lo = 0d bm , t c = + 25c ( n ote 3) 34 39 dbm t c = +25? to -40? -0.6 input ip3 variation over temperature iip3 t c = +25? to +85? -0.6 db lo ?2if spur 71 dbc lo ?3if spur 86 dbc output noise floor p out = 0dbm (note 5) -167 dbm/hz
MAX2029 high-linearity, 815mhz to 1000mhz upconversion/ downconversion mixer with lo buffer/switch _______________________________________________________________________________________ 5 typical operating characteristics ( typical application circuit , c5 = 3.3pf, l1 and c4 not used, v cc = +5.0v, p lo = 0dbm, p rf = 0dbm, f lo < f rf , f if = 90mhz, unless otherwise noted.) downconverter curves 4 5 7 6 8 9 conversion loss vs. rf frequency MAX2029 toc01 rf frequency (mhz) conversion loss (db) 800 900 850 950 1000 t c = +85 c t c = +25 c t c = -40 c 4 5 7 6 8 9 conversion loss vs. rf frequency MAX2029 toc02 rf frequency (mhz) conversion loss (db) 800 900 850 950 1000 p lo = -3dbm, 0dbm, +3dbm 4 5 7 6 8 9 conversion loss vs. rf frequency MAX2029 toc03 rf frequency (mhz) conversion loss (db) 800 900 850 950 1000 v cc = 4.75v, 5.0v, 5.25v 30 34 32 38 36 40 42 800 900 850 950 1000 input ip3 vs. rf frequency MAX2029 toc04 rf frequency (mhz) input ip3 (dbm) t c = +85 c t c = +25 c t c = -40 c 30 34 32 38 36 40 42 800 900 850 950 1000 input ip3 vs. rf frequency MAX2029 toc05 rf frequency (mhz) input ip3 (dbm) p lo = -3dbm, 0dbm, +3dbm 30 34 32 38 36 40 42 800 900 850 950 1000 input ip3 vs. rf frequency MAX2029 toc06 rf frequency (mhz) input ip3 (dbm) v cc = 5.0v v cc = 5.25v v cc = 4.75v 5 6 8 7 9 10 noise figure vs. rf frequency MAX2029 toc07 rf frequency (mhz) noise figure (db) 800 900 850 950 1000 t c = +85 c t c = +25 c t c = -40 c 5 6 8 7 9 10 noise figure vs. rf frequency MAX2029 toc08 rf frequency (mhz) noise figure (db) 800 900 850 950 1000 p lo = -3dbm p lo = 0dbm, +3dbm 5 6 8 7 9 10 noise figure vs. rf frequency MAX2029 toc09 rf frequency (mhz) noise figure (db) 800 900 850 950 1000 v cc = 4.75v, 5.0v, 5.25v
MAX2029 high-linearity, 815mhz to 1000mhz upconversion/ downconversion mixer with lo buffer/switch 6 _______________________________________________________________________________________ downconverter curves typical operating characteristics (continued) ( typical application circuit , c5 = 3.3pf, l1 and c4 not used, v cc = +5.0v, p lo = 0dbm, p rf = 0dbm, f lo < f rf , f if = 90mhz, unless otherwise noted.) 45 55 50 65 60 70 75 800 900 850 950 1000 2rf - 2lo response vs. rf frequency MAX2029 toc10 rf frequency (mhz) 2rf - 2lo response (dbc) t c = -40 c, +25 c, +85 c p rf = 0dbm 45 55 50 65 60 70 75 800 900 850 950 1000 2rf - 2lo response vs. rf frequency MAX2029 toc11 rf frequency (mhz) 2rf - 2lo response (dbc) p rf = 0dbm p lo = -3dbm p lo = +3dbm p lo = 0dbm 45 55 50 65 60 70 75 800 900 850 950 1000 2rf - 2lo response vs. rf frequency MAX2029 toc12 rf frequency (mhz) 2rf - 2lo response (dbc) p rf = 0dbm v cc = 5.0v v cc = 4.75v v cc = 5.25v 100 90 80 70 60 800 900 850 950 1000 3rf - 3lo response vs. rf frequency MAX2029 toc13 rf frequency (mhz) 3rf - 3lo response (dbc) p rf = 0dbm t c = +85 c t c = +25 c t c = -40 c 100 90 80 70 60 800 900 850 950 1000 3rf - 3lo response vs. rf frequency MAX2029 toc14 rf frequency (mhz) 3rf - 3lo response (dbc) p rf = 0dbm p lo = -3dbm, 0dbm, +3dbm 100 90 80 70 60 800 900 850 950 1000 3rf - 3lo response vs. rf frequency MAX2029 toc15 rf frequency (mhz) 3rf - 3lo response (dbc) p rf = 0dbm v cc = 5.25v v cc = 5.0v v cc = 4.75v 31 29 27 25 23 800 900 850 950 1000 input p 1db vs. rf frequency MAX2029 toc16 rf frequency (mhz) input p 1db (dbm) t c = +85 c t c = -40 c t c = +25 c 31 29 27 25 23 800 900 850 950 1000 input p 1db vs. rf frequency MAX2029 toc17 rf frequency (mhz) input p 1db (dbm) p lo = -3dbm, 0dbm, +3dbm 31 29 27 25 23 800 900 850 950 1000 input p 1db vs. rf frequency MAX2029 toc18 rf frequency (mhz) input p 1db (dbm) v cc = 5.0v v cc = 5.25v v cc = 4.75v
MAX2029 high-linearity, 815mhz to 1000mhz upconversion/ downconversion mixer with lo buffer/switch _______________________________________________________________________________________ 7 downconverter curves typical operating characteristics (continued) ( typical application circuit , c5 = 3.3pf, l1 and c4 not used, v cc = +5.0v, p lo = 0dbm, p rf = 0dbm, f lo < f rf , f if = 90mhz, unless otherwise noted.) 40 60 50 70 lo switch isolation vs. lo frequency MAX2029 toc19 lo frequency (mhz) lo switch isolation (db) 500 600 700 800 900 1000 t c = +85 c t c = +25 c t c = -40 c 40 60 50 70 lo switch isolation vs. lo frequency MAX2029 toc20 lo frequency (mhz) lo switch isolation (db) 500 600 700 800 900 1000 p lo = -3dbm, 0dbm, +3dbm 40 60 50 70 lo switch isolation vs. lo frequency MAX2029 toc21 lo frequency (mhz) lo switch isolation (db) 500 600 700 800 900 1000 v cc = 4.75v, 5.0v, 5.25v -20 -30 -40 -50 -60 710 810 760 860 910 lo leakage at if port vs. lo frequency MAX2029 toc22 lo frequency (mhz) lo leakage at if port (dbm) t c = +85 c t c = +25 c t c = -40 c -20 -30 -40 -50 -60 710 810 760 860 910 lo leakage at if port vs. lo frequency MAX2029 toc23 lo frequency (mhz) lo leakage at if port (dbm) p lo = -3dbm p lo = 0dbm, +3dbm -20 -30 -40 -50 -60 710 810 760 860 910 lo leakage at if port vs. lo frequency MAX2029 toc24 lo frequency (mhz) lo leakage at if port (dbm) v cc = 4.75v, 5.0v, 5.25v -45 -35 -40 -25 -30 -20 -15 500 700 600 800 900 1000 lo leakage at rf port vs. lo frequency MAX2029 toc25 lo frequency (mhz) lo leakage at rf port (dbm) t c = +85 c t c = +25 c t c = -40 c -45 -35 -40 -25 -30 -20 -15 500 700 600 800 900 1000 lo leakage at rf port vs. lo frequency MAX2029 toc26 lo frequency (mhz) lo leakage at rf port (dbm) p lo = -3dbm, 0dbm, +3dbm -45 -35 -40 -25 -30 -20 -15 500 700 600 800 900 1000 lo leakage at rf port vs. lo frequency MAX2029 toc27 lo frequency (mhz) lo leakage at rf port (dbm) v cc = 4.75v, 5.0v, 5.25v
MAX2029 high-linearity, 815mhz to 1000mhz upconversion/ downconversion mixer with lo buffer/switch 8 _______________________________________________________________________________________ downconverter curves typical operating characteristics (continued) ( typical application circuit , c5 = 3.3pf, l1 and c4 not used, v cc = +5.0v, p lo = 0dbm, p rf = 0dbm, f lo < f rf , f if = 90mhz, unless otherwise noted.) 30 40 35 50 45 55 60 800 900 850 950 1000 rf-to-if isolation vs. rf frequency MAX2029 toc28 rf frequency (mhz) rf-to-if isolation (db) t c = +85 c t c = +25 c t c = -40 c 30 40 35 50 45 55 60 800 900 850 950 1000 rf-to-if isolation vs. rf frequency MAX2029 toc29 rf frequency (mhz) rf-to-if isolation (db) p lo = -3dbm, 0dbm, +3dbm 30 40 35 50 45 55 60 800 900 850 950 1000 rf-to-if isolation vs. rf frequency MAX2029 toc30 rf frequency (mhz) rf-to-if isolation (db) v cc = 4.75v, 5.0v, 5.25v 30 20 25 10 15 5 0 770 870 820 920 970 1020 rf port return loss vs. rf frequency MAX2029 toc31 rf frequency (mhz) rf port return loss (db) p lo = -3dbm, 0dbm, +3dbm 40 35 30 25 20 15 10 5 0 0 100 200 300 400 500 if port return loss vs. if frequency MAX2029 toc32 if frequency (mhz) if port return loss (db) v cc = 4.75v, 5.0v, 5.25v includes if transformer 40 35 30 25 20 15 10 5 0 500 600 700 800 900 1000 lo selected return loss vs. lo frequency MAX2029 toc33 lo frequency (mhz) lo selected return loss (db) p lo = -3dbm p lo = +3dbm p lo = 0dbm 40 35 30 25 20 15 10 5 0 500 600 700 800 900 1000 lo unselected return loss vs. lo frequency MAX2029 toc34 lo frequency (mhz) lo unselected return loss (db) p lo = -3dbm, 0dbm, +3dbm 60 70 80 90 100 -40 10 -15 35 60 85 supply current vs. temperature (t c ) MAX2029 toc35 temperature ( c) supply current (ma) v cc = 5.25v v cc = 4.75v v cc = 5.0v
MAX2029 high-linearity, 815mhz to 1000mhz upconversion/ downconversion mixer with lo buffer/switch _______________________________________________________________________________________ 9 typical operating characteristics ( typical application circuit , l1 = 4.7nh, c4 = 4.7pf, c5 not used, v cc = +5.0v, p lo = 0dbm, p if = 0dbm, f rf = f lo + f if , f if = 90mhz, unless otherwise noted.) upconverter curves 3 5 4 7 6 8 9 820 920 870 970 1020 conversion loss vs. rf frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc01 rf frequency (mhz) conversion loss (db) t c = +85 c t c = +25 c t c = -40 c 3 5 4 7 6 8 9 820 920 870 970 1020 conversion loss vs. rf frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc02 rf frequency (mhz) conversion loss (db) p lo = -3dbm, 0dbm, +3dbm 3 5 4 7 6 8 9 820 920 870 970 1020 conversion loss vs. rf frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc03 rf frequency (mhz) conversion loss (db) v cc = 4.75v, 5.0v, 5.25v 25 30 40 35 45 50 input ip3 vs. rf frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc04 rf frequency (mhz) input ip3 (dbm) 820 920 870 970 1020 t c = +85 c t c = +25 c t c = -40 c 25 30 40 35 45 50 input ip3 vs. rf frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc05 rf frequency (mhz) input ip3 (dbm) 820 920 870 970 1020 p lo = -3dbm, 0dbm, +3dbm 25 30 40 35 45 50 input ip3 vs. rf frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc06 rf frequency (mhz) input ip3 (dbm) 820 920 870 970 1020 v cc = 5.0v v cc = 5.25v v cc = 4.75v 90 80 70 60 50 730 830 780 880 930 lo + 2if rejection vs. lo frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc07 lo frequency (mhz) lo + 2if rejection (dbc) t c = +85 c t c = +25 c t c = -40 c p if = 0dbm 90 80 70 60 50 730 830 780 880 930 lo + 2if rejection vs. lo frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc08 lo frequency (mhz) lo + 2if rejection (dbc) p if = 0dbm p lo = -3dbm p lo = 0dbm p lo = +3dbm 90 80 70 60 50 730 830 780 880 930 lo + 2if rejection vs. lo frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc09 lo frequency (mhz) lo + 2if rejection (dbc) p if = 0dbm v cc = 5.0v v cc = 5.25v v cc = 4.75v
MAX2029 high-linearity, 815mhz to 1000mhz upconversion/ downconversion mixer with lo buffer/switch 10 ______________________________________________________________________________________ upconverter curves typical operating characteristics (continued) ( typical application circuit , l1 = 4.7nh, c4 = 4.7pf, c5 not used, v cc = +5.0v, p lo = 0dbm, p if = 0dbm, f rf = f lo + f if , f if = 90mhz, unless otherwise noted.) 90 80 70 60 50 730 830 780 880 930 lo - 2if rejection vs. lo frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc10 lo frequency (mhz) lo - 2if rejection (dbc) p if = 0dbm t c = +85 c t c = +25 c t c = -40 c 90 80 70 60 50 730 830 780 880 930 lo - 2if rejection vs. lo frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc11 lo frequency (mhz) lo - 2if rejection (dbc) p if = 0dbm p lo = -3dbm p lo = 0dbm p lo = +3dbm 90 80 70 60 50 730 830 780 880 930 lo - 2if rejection vs. lo frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc12 lo frequency (mhz) lo - 2if rejection (dbc) p if = 0dbm v cc = 5.0v v cc = 5.25v v cc = 4.75v 100 90 80 70 60 730 830 780 880 930 lo + 3if rejection vs. lo frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc13 lo frequency (mhz) lo + 3if rejection (dbc) p if = 0dbm t c = +85 c t c = +25 c t c = -40 c 100 90 80 70 60 730 830 780 880 930 lo + 3if rejection vs. lo frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc14 lo frequency (mhz) lo + 3if rejection (dbc) p if = 0dbm p lo = -3dbm, 0dbm, +3dbm 100 90 80 70 60 730 830 780 880 930 lo + 3if rejection vs. lo frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc15 lo frequency (mhz) lo + 3if rejection (dbc) p if = 0dbm v cc = 4.75v, 5.0v, 5.25v 100 90 80 70 60 730 830 780 880 930 lo - 3if rejection vs. lo frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc16 lo frequency (mhz) lo - 3if rejection (dbc) p if = 0dbm t c = +85 c t c = +25 c t c = -40 c 100 90 80 70 60 730 830 780 880 930 lo - 3if rejection vs. lo frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc17 lo frequency (mhz) lo - 3if rejection (dbc) p if = 0dbm p lo = -3dbm, 0dbm, +3dbm 100 90 80 70 60 730 830 780 880 930 lo - 3if rejection vs. lo frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc18 lo frequency (mhz) lo - 3if rejection (dbc) p if = 0dbm v cc = 5.0v v cc = 5.25v v cc = 4.75v
MAX2029 high-linearity, 815mhz to 1000mhz upconversion/ downconversion mixer with lo buffer/switch ______________________________________________________________________________________ 11 upconverter curves typical operating characteristics (continued) ( typical application circuit , l1 = 4.7nh, c4 = 4.7pf, c5 not used, v cc = +5.0v, p lo = 0dbm, p if = 0dbm, f rf = f lo + f if , f if = 90mhz, unless otherwise noted.) -10 -20 -30 -40 -50 730 830 780 880 930 lo leakage at rf port vs. lo frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc19 lo frequency (mhz) lo leakage at rf port (dbm) t c = +85 c t c = +25 c t c = -40 c -10 -20 -30 -40 -50 730 830 780 880 930 lo leakage at rf port vs. lo frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc20 lo frequency (mhz) lo leakage at rf port (dbm) p lo = -3dbm, 0dbm, +3dbm -10 -20 -30 -40 -50 730 830 780 880 930 lo leakage at rf port vs. lo frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc21 lo frequency (mhz) lo leakage at rf port (dbm) v cc = 4.75v, 5.0v, 5.25v -100 -90 -70 -80 -60 -50 if leakage at rf vs. lo frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc22 lo frequency (mhz) if leakage at rf (dbm) 730 830 780 880 930 t c = +85 c t c = +25 c t c = -40 c -100 -90 -70 -80 -60 -50 if leakage at rf vs. lo frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc23 lo frequency (mhz) if leakage at rf (dbm) 730 830 780 880 930 p lo = -3dbm p lo = 0dbm, +3dbm -100 -90 -70 -80 -60 -50 if leakage at rf vs. lo frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc24 lo frequency (mhz) if leakage at rf (dbm) 730 830 780 880 930 v cc = 5.25v v cc = 4.75v, 5.0v 40 35 30 25 20 15 10 5 0 820 870 920 970 1020 rf port return loss vs. rf frequency (l-c bpf tuned for 940mhz rf frequency) MAX2029 toc25 rf frequency (mhz) rf port return loss (db) l1 and c4 bpf installed l1 and c4 bpf removed the l-c bpf enhances performance in the upconverter mode but limits rf bandwidth
MAX2029 detailed description the MAX2029 can operate either as a downconverter or an upconverter mixer. as a downconverter, the MAX2029 yields a 6.5db conversion loss, a 6.7db noise figure, and a +36.5dbm third-order input intercept point (iip3). the integrated baluns and matching circuitry allow for 50 single-ended interfaces to the rf port and the two lo ports. the rf port can be used as an input for downconversion or an output for upconversion. a sin- gle-pole, double-throw (spdt) switch provides 50ns switching time between the two lo inputs with 53db 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 MAX2029? inputs to a -3dbm to +3dbm range. the if port incorporates a dif- ferential output for downconversion, which is ideal for providing enhanced iip2 performance. for upconver- sion, the if port is a differential input. specifications are guaranteed over broad frequency ranges to allow for use in cellular band wcdma, cdmaone, cdma2000, and gsm 850/gsm 900 2.5g edge base stations. the MAX2029 is specified to oper- ate over an 815mhz to 1000mhz rf frequency range, a 570mhz to 900mhz lo frequency range, and a dc to 250mhz if frequency range. operation beyond these ranges is possible; see the typical operating characteristics for additional details. the MAX2029 is optimized for low-side lo injection archi- tectures. however, the device can operate in high-side lo injection applications with an extended lo range, but performance degrades as f lo increases. see the typical operating characteristics for measurements taken with f lo up to 1000 mhz. for a pin-compatible device that has been optimized for high-side lo injection, refer to the max2031 data sheet. rf port and balun for using the MAX2029 as a downconverter, the rf input is internally matched to 50 , requiring no external matching components. a dc-blocking capacitor is required because the input is internally dc shorted to ground through the on-chip balun. the rf return loss is typically better than 15db over the entire 815mhz to 1000mhz rf frequency range. for upconverter opera- tion, the rf port is a single-ended output similarly matched to 50 . lo inputs, buffer, and balun the MAX2029 is optimized for low-side lo injection architectures with a 570mhz to 900mhz lo frequency range. for a device with a 960mhz to 1180mhz lo fre- quency range, refer to the max2031 data sheet. as an added feature, the MAX2029 includes an internal lo spdt switch that can be used for frequency-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 nearly all gsm applications. if fre- quency 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 be applied to v cc before digital logic is applied to losel (see the absolute maximum ratings ). lo1 high-linearity, 815mhz to 1000mhz upconversion/ downconversion mixer with lo buffer/switch 12 ______________________________________________________________________________________ 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 s i ng l e- e nd ed 50 rf inp ut/o utp ut. thi s p or t i s i nter nal l y m atched and d c shor ted to g n d thr oug h a b al un. 3 tap center tap of the internal rf balun. connect to ground. 4, 5, 10, 12, 13, 16, 17, 20 gnd ground. connect to pcb ground plane for proper operation and improved pin-to-pin isolation. 7 lobias bias resistor for internal lo buffer. connect a 523 ?% 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. cdmaone is a trademark of cdma development group.
and lo2 inputs are internally matched to 50 , requiring an 82pf dc-blocking capacitor at each input. a two-stage internal lo buffer allows a wide input- power range for the lo drive. all guaranteed specifica- tions are for a -3dbm to +3dbm lo signal power. the on-chip low-loss balun, along with an lo buffer, drives the double-balanced mixer. all interfacing and match- ing components from the lo inputs to the if outputs are integrated on-chip. high-linearity mixer the core of the MAX2029 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 MAX2029 mixer has a dc to 250mhz if frequency range. note that these differential ports are ideal for pro- viding enhanced iip2 performance. single-ended if applications require a 1:1 balun to transform the 50 dif- ferential if impedance to 50 single-ended. including the balun, the if return loss is better than 15db. the dif- ferential if is used as an input port for upconverter oper- ation. the user can use a differential if amplifier following the mixer, but a dc block is required on both if pins. applications information input and output matching the rf and lo inputs are internally matched to 50 . no matching components are required. as a downconvert- er, the return loss at the rf port is typically better than 15db over the entire input range (815mhz to 1000mhz), and return loss at the lo ports are typically 15db (570mhz to 850mhz). rf and lo inputs require only dc-blocking capacitors for interfacing. an optional l-c bandpass filter (bpf) can be installed at the rf port to improve upconverter performance. see the typical application circuit and typical operating characteristics for upconverter operation with an l-c bpf tuned for 920mhz rf frequency. performance can be optimized at other frequencies by choosing different values for l1 and c4. removing l1 and c4 altogether results in a broader match, but performance degrades. contact factory for details. 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 ?% bias resistor values are not readily available, substitute standard ?% values. layout considerations a properly designed pcb is an essential part of any rf/microwave circuit. keep rf signal lines as short as possible to reduce losses, radiation, and inductance. for the best performance, route the ground-pin traces directly to the exposed pad under the package. the pcb exposed pad must be connected to the ground plane of the pcb. it is suggested that multiple vias be used to connect this pad to the lower-level ground planes. this method provides a good rf/thermal con- duction path for the device. solder the exposed pad on the bottom of the device package to the pcb. the MAX2029 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 with the capacitors shown in the typical application circuit . see table 1. exposed pad rf/thermal considerations the exposed paddle (ep) of the MAX2029? 20-pin thin qfn-ep package provides a low-thermal-resistance path to the die. it is important that the pcb on which the MAX2029 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 pcb, either directly or through an array of plated via holes. MAX2029 high-linearity, 815mhz to 1000mhz upconversion/ downconversion mixer with lo buffer/switch ______________________________________________________________________________________ 13 component value description c 1, c 2, c 7, c 8, c 10, c 11, c12 82pf microwave capacitors (0603) c3, c6, c9 10nf microwave capacitors (0603) c4* 4.7pf microwave capacitor (0603) c5** 3.3pf microwave capacitor (0603) l1* 4.7nh inductor (0603) r1 523 ?% resistor (0603) t1 1:1 if balun m/a-com: mabaes0029 u1 MAX2029 maxim ic table 1. typical application circuit component list * c4 and l1 installed only when mixer is used as an upconverter. ** c5 installed only when mixer is used as a downconverter.
MAX2029 high-linearity, 815mhz to 1000mhz upconversion/ downconversion mixer with lo buffer/switch 14 ______________________________________________________________________________________ MAX2029 4 5 3 2 12 11 13 lobias losel gnd 14 v cc if+ gnd gnd gnd 67 tap 910 20 19 17 16 gnd gnd note: l1 and c4 used only for upconverter operation. c5 used only for downconverter operation. v cc gnd gnd lo1 v cc if- 8 18 rf 1 15 lo2 v cc v cc c3 c2 l1 c4 rf c1 lo2 c12 lo1 c10 v cc c11 losel v cc c8 c9 v cc c7 c6 t1 1 3 4 5 if c5 r1 e.p. typical application circuit chip information process: sige bicmos
MAX2029 high-linearity, 815mhz to 1000mhz 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
MAX2029 high-linearity, 815mhz to 1000mhz 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 2007 maxim integrated products 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 .)

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