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1 general description the max2092 high-linearity analog variable-gain ampli fier (vga) is a monolithic sige bicmos attenuator/ amplifier/ error amplifier with an alarm circuit designed to interface with 50 i systems operating in the 700mhz to 2700mhz frequency range. the device features a gain range of +18.1db to -22.3db, a noise figure of 5.2db, oip3 linear- ity of +32.5dbm, and a wide rf bandwidth. each of these features makes the device an ideal vga for numerous receiver and transmitter applications. when paired with the max2091 or max2091b variable gain upconverter, a complete 2-chip if-rf signal conditioning solution is pos - sible for microwave point-to-point transmitters. the max2092 operates from a single +5v supply, and is available in a compact 20-pin tqfn pack age (5mm x 5mm) with an exposed pad. electrical per formance is guaranteed over the extended temperature range from t c = -40 n c to +95 n c. applications microwave point-to-point receivers and transmitters rf variable-gain stages temperature compensation circuits cellular applications wimax? applications lte applications fixed broadband wireless access wireless local loop military systems features s wide band coverage ? 700mhz to 2700mhz rf frequency range s high linearity ? +32.5dbm oip3 ? +18.2dbm output -1db compression point s 18.1db gain s 40.4db attenuation range s 5.2db noise figure (includes attenuator insertion loss) s 0.03db gain variation over 100mhz bandwidth at 1835mhz s analog attenuator controlled with external voltage s extended +4.75v to +5.8v supply range s lead(pb)-free package s power-down capabilities 19-6377; rev 0; 6/12 ordering information appears at end of data sheet. for related parts and recommended products to use with this part, refer to www.maxim-ic.com/max2092.related . wimax is a registered certification mark and registered service mark of wimax forum. max2092 700mhz to 2700mhz analog vga with threshold alarm circuit and error amplifier for level control evaluation kit available for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxims website at www.maxim-ic.com.
2 max2092 700mhz to 2700mhz analog vga with threshold alarm circuit and error amplifier for level control v cc_rf , v cc_a ........................................................ -0.3v to +6v rf_out, rf_in ........................................ -0.3v to (v cc + 0.3v) r_bias, ctrl1, ctrl2, plvlset, det_vin ... -0.3v to minimum (v cc + 0.3v, +3.6v) rf_in input power ........................................................ +15dbm rf_out output power .................................................. +23dbm continuous power dissipation (note 1) ............................. 2.5w operating case temperature range (note 2) ............................................... -40 n c to +95 n c maximum junction temperature ..................................... +150 n c storage temperature range ............................ -65 n c to +150 n c lead temperature (soldering, 10s) ................................ +300 n c soldering temperature (reflow) .................................... +260 n c junction-to-ambient thermal resistance ( q ja ) (notes 3, 4) ................................................................. 32c/w junction-to-case thermal resistance ( q jc ) (notes 1, 4) ................................................................... 7c/w absolute maximum ratings stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. these are stress ratings only, and functional opera - tion of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. package thermal characteristics dc electrical characteristics ( typical application circuit with v cc = 4.75v to 5.8v, v gnd = 0v, and t c = -40c to +95c. typical values are at v cc = 5.5v and t c = +25c, unless otherwise noted.) (note 5) note 1: based on junction temperature t j = t c + ( b jc x v cc x i cc ). this formula can be used when the temperature of the exposed pad 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 n c. note 2: t c is the temperature on the exposed pad of the package. t a is the ambient temperature of the device and pcb. note 3: junction temperature t j = t a + ( q ja x v cc x i cc ). this formula can be used when the ambient temperature of the pcb is known. the junction temperature must not exceed +150 n c. note 4: package thermal resistances were obtained using the method described in jedec specification jesd51-7, using a four- layer board. for detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial . parameter symbol conditions min typ max units supply voltage v cc 4.75 5.8 v total supply current i dc power down: ctrl1 = 0, ctrl2 = 0 2 3 ma vga-only mode: ctrl1 = 1, ctrl2 = 0 80 90 alc mode: ctrl1 = 1, ctrl2 = 1 93 110 ctrl1/ctrl2 logic-low input voltage v il 0.8 v ctrl1, ctrl2 logic-high input voltage v ih 2.2 v input logic current i ih, i il -1 +1 a plvlset input-voltage range v in 0 2.5 v det_vin input-voltage range v in 0 2.5 v
3 max2092 700mhz to 2700mhz analog vga with threshold alarm circuit and error amplifier for level control ac electrical characteristics ( typical application circuit with analog attenuator set for maximum gain, v cc = 4.75v to 5.8v, f rf = 1835mhz, p rfin = -16dbm (cw), t c = -40c to +95c, and rf ports are connected to 50? sources and loads, unless otherwise noted. typical values are at t c = +25c, v cc = 5.5v, p rf_in = -16dbm, v plvlset = 2.5v, ctrl1 = 1, ctrl2 = 0. min/max specifications apply over supply, process, and temperature, unless otherwise noted.) (notes 5, 7) recommended ac electrical characteristics parameter symbol conditions min typ max units rf frequency f rf (note 6) 700 2700 mhz parameter symbol conditions min typ max units small-signal gain g f rf = 974mhz 17.3 db f rf = 1835mhz 18.1 f rf = 2200mhz 18.1 gain vs. temperature -0.007 db/c gain flatness vs. frequency 974mhz 50mhz 0.22 db p-p 1835mhz 50mhz 0.03 1835mhz 80mhz 0.03 1835mhz 100mhz 0.03 2200mhz 100mhz 0.1 noise figure nf f rf = 974mhz 5.0 db f rf = 1835mhz 5.2 f rf = 2200mhz 5.5 total attenuation range f rf = 974mhz 40.1 db f rf = 1835mhz 40.4 f rf = 2200mhz 39.2 output second-order intercept point oip2 p rfout = +2dbm/tone, d f = 1mhz, f 1 + f 2 50 dbm output third-order intercept point oip3 p rfout = +2dbm/tone, d f = 1mhz f rf = 974mhz 34.3 dbm f rf = 1835mhz 32.5 f rf = 2200mhz 31.4 output -1db compression point p -1db (note 8) 18.2 dbm second harmonic p rfout = +5dbm 52 dbc third harmonic p rfout = +5dbm 61 dbc input return loss 1835mhz 50mhz 18 db output return loss 1835mhz 50mhz 23 db alarm circuit (ctrl1 = 1 ctrl2 = 1) lower alarm threshold input = det_vin 0.175 v upper alarm threshold input = det_vin 2.25 v hysteresis 29 mv alarm output logic 1 output = alm 3.135 3.3 3.465 v alarm output logic 0 output = alm 0.4 v
4 max2092 700mhz to 2700mhz analog vga with threshold alarm circuit and error amplifier for level control ac electrical characteristics (continued) ( typical application circuit with analog attenuator set for maximum gain, v cc = 4.75v to 5.8v, f rf = 1835mhz, p rfin = -16dbm (cw), t c = -40c to +95c, and rf ports are connected to 50? sources and loads, unless otherwise noted. typical values are at t c = +25c, v cc = 5.5v, p rf_in = -16dbm, v plvlset = 2.5v, ctrl1 = 1, ctrl2 = 0. min/max specifications apply over supply, process, and temperature, unless otherwise noted.) (notes 5, 7) note 5: production tested at t c = +95c. all other temperatures guaranteed by design and characterization. note 6: recommended functional range, not production tested. operation outside this range is possible, but with degraded performance of some parameters. note 7: all limits include external component losses. output measurements are taken at the rf port of the typical application circuit . note 8: it is advisable not to continuously operate the vga rf-input above +12dbm. typical operating characteristics ( typical application circuit with analog attenuator set to minimum attenuation, v cc = 4.75v to 5.8v, f rf = -16dbm, t c = -40c to +95c, and rf ports are connected to 50? sources and loads, unless otherwise noted. typical values are at t c = +25c, v cc = 5.5v, p rf = -16dbm, ctrl1 = 1, ctrl2 = 0, v plvlset = 2.5v, unless otherwise noted.) parameter symbol conditions min typ max units analog attenuator (ctrl1 = 1, ctrl2 = 0) minimum attenuator control voltage input = plvlset 0.25 v maximum attenuator control voltage input = plvlset 2.3 v average gain-control slope v plvlset = 0.25v to 2.3v 19.4 db/v maximum gain-control slope v plvlset = 0v to 2.5v 27 db/v gain vs. rf frequency max2092 toc01 rf frequency (mhz) gain (db) 2200 1700 1200 16 18 20 14 700 2700 t c = +95c t c = -40c t c = +25c gain vs. rf frequency max2092 toc02 rf frequency (mhz) gain (db) 2200 1700 1200 16 18 20 14 700 2700 v cc = 4.75v, 5.00v, 5.50v, 5.80v gain over v plvlset setting vs. rf frequency max2092 toc03 rf frequency (mhz) 2.5v 1.5v 1.0v 0.5v 0v 2.0v gain (db) 2200 1700 1200 -5 -15 5 15 25 -25 700 2700
5 typical operating characteristics (continued) ( typical application circuit with analog attenuator set to minimum attenuation, v cc = 4.75v to 5.8v, f rf = -16dbm, t c = -40c to +95c, and rf ports are connected to 50? sources and loads, unless otherwise noted. typical values are at t c = +25c, v cc = 5.5v, p rf = -16dbm, ctrl1 = 1, ctrl2 = 0, v plvlset = 2.5v, unless otherwise noted.) gain vs. v plvlset setting max2092 toc04 v plvlset (v) gain (db) 2.0 1.5 1.0 0.5 -15 -5 5 15 25 -25 0 2.5 700mhz, 974mhz, 1835mhz, 2200mhz 2700mhz s11 vs. rf frequency max2092 toc05 rf frequency (mhz) s11 (db) 2200 1700 1200 -30 -20 -10 0 -40 700 2700 t c = +95c t c = -40c t c = +25c s11 vs. v plvlset setting max2092 toc06 v plvlset (v) s11 (db) 2.0 1.5 1.0 0.5 -20 -10 0 -30 0 2.5 2700mhz 700mhz 2200mhz 974mhz 1835mhz s22 vs. rf frequency max2092 toc07 rf frequency (mhz) s22 (db) 2200 1700 1200 -30 -20 -10 0 -40 700 2700 t c = +25c t c = -40c t c = +95c s22 vs. v plvlset setting max2092 toc08 v plvlset (v) s22 (db) 2.0 1.5 1.0 0.5 -20 -10 0 -30 0 2.5 2700mhz 700mhz 2200mhz 974mhz 1835mhz reverse-isolation over v plvlset setting vs. rf frequency max2092 toc09 rf frequency (mhz) reverse-isolation (db) 2200 1700 1200 30 40 50 60 70 80 20 700 2700 v plvlset = 0v v plvlset = 2.5v gain vs. v plvlset setting max2092 toc10 v plvlset (v) gain (db) 2.0 1.5 1.0 0.5 -15 -5 5 15 25 -25 0 2.5 f rf = 1835mhz t c = -40c, +25c, +95c gain vs. v plvlset setting max2092 toc11 v plvlset (v) gain (db) 2.0 1.5 1.0 0.5 -15 -5 5 15 25 -25 0 2.5 f rf = 974mhz t c = -40c, +25c, +95c gain vs. v plvlset setting max2092 toc12 v plvlset (v) gain (db) 2.0 1.5 1.0 0.5 -15 -5 5 15 25 -25 0 2.5 f rf = 700mhz t c = -40c, +25c, +95c max2092 700mhz to 2700mhz analog vga with threshold alarm circuit and error amplifier for level control
6 typical operating characteristics (continued) ( typical application circuit with analog attenuator set to minimum attenuation, v cc = 4.75v to 5.8v, f rf = -16dbm, t c = -40c to +95c, and rf ports are connected to 50? sources and loads, unless otherwise noted. typical values are at t c = +25c, v cc = 5.5v, p rf = -16dbm, ctrl1 = 1, ctrl2 = 0, v plvlset = 2.5v, unless otherwise noted.) gain vs. v plvlset setting max2092 toc13 v plvlset (v) gain (db) 2.0 1.5 1.0 0.5 -15 -5 5 15 25 -25 0 2.5 f rf = 2200mhz t c = -40c, +25c, +95c gain vs. v plvlset setting max2092 toc14 v plvlset (v) gain (db) 2.0 1.5 1.0 0.5 -15 -5 5 15 25 -25 0 2.5 f rf = 2700mhz t c = -40c, +25c, +95c noise figure vs. rf frequency max2092 toc15 rf frequency (mhz) noise figure (db) 2200 1700 1200 4 5 6 7 8 3 700 2700 t c = +95c t c = +25c t c = -40c noise figure vs. rf frequency max2092 toc16 rf frequency (mhz) noise figure (db) 2200 1700 1200 4 5 6 7 8 3 700 2700 v cc = 4.75v, 5.00v, 5.50v, 5.80v output ip3 vs. rf frequency max2092 toc17 rf frequency (mhz) output ip3 (dbm) 2200 1700 1200 30 35 40 25 700 2700 p out = 2dbm/ tone t c = +95c t c = -40c t c = +25c output ip3 vs. rf frequency max2092 toc18 rf frequency (mhz) output ip3 (dbm) 2200 1700 1200 30 35 40 25 700 2700 p out = 2dbm/ tone v cc = 5.00v v cc = 5.50v v cc = 5.80v v cc = 4.75v output ip3 vs. v plvlset setting (constant p out ) max2092 toc19 v plvlset (v) output ip3 (dbm) 2.1 1.7 1.3 29 31 33 35 37 27 0.9 2.5 t c = +25c lsb, usb t c = -40c lsb, usb f rf = 1835mhz p out = 2dbm/ tone t c = +95c usb t c = +95c lsb output ip3 vs. v plvlset setting (constant p in ) max2092 toc20 v plvlset (v) output ip3 (dbm) 2.1 1.7 1.3 29 31 33 35 37 27 0.9 2.5 t c = -40c lsb, usb f rf = 1835mhz p in = -6dbm/ tone t c = +95c usb t c = +25c lsb, usb t c = +95c lsb output p 1db vs. rf frequency max2092 toc21 rf frequency (mhz) output p 1db (dbm) 2200 1700 1200 17 18 19 20 15 16 700 2700 t c = -40c t c = +25c t c = +95c max2092 700mhz to 2700mhz analog vga with threshold alarm circuit and error amplifier for level control
7 typical operating characteristics (continued) ( typical application circuit with analog attenuator set to minimum attenuation, v cc = 4.75v to 5.8v, f rf = -16dbm, t c = -40c to +95c, and rf ports are connected to 50? sources and loads, unless otherwise noted. typical values are at t c = +25c, v cc = 5.5v, p rf = -16dbm, ctrl1 = 1, ctrl2 = 0, v plvlset = 2.5v, unless otherwise noted.) output p 1db vs. rf frequency max2092 toc22 rf frequency (mhz) output p 1db (dbm) 2200 1700 1200 17 18 19 20 15 16 700 2700 v cc = 4.75v v cc = 5.50v v cc = 5.80v v cc = 5.25v v cc = 5.00v 2nd harmonic vs. rf frequency max2092 toc23 rf frequency (mhz) 2nd harmonic (dbc) 2200 1700 1200 45 55 65 35 700 2700 t c = +95c t c = -40c t c = +25c p out = 5dbm 2nd harmonic vs. rf frequency max2092 toc24 rf frequency (mhz) 2nd harmonic (dbc) 2200 1700 1200 700 2700 p out = 5dbm 45 55 65 35 v cc = 4.75v v cc = 5.50v v cc = 5.80v v cc = 5.00v 2nd harmonic vs. v plvlset setting (constant p out ) max2092 toc25 v plvlset (v) 2nd harmonic (dbc) 2.1 1.7 1.3 0.9 2.5 f rf = 1835mhz p out = 5dbm 45 55 65 35 t c = +95c t c = -40c t c = +25c 2nd harmonic vs. v plvlset setting (constant p in ) max2092 toc26 v plvlset (v) 2nd harmonic (dbc) 1.50 1.25 1.00 0.75 1.75 f rf = 1835mhz p in = -6dbm 60 80 90 40 50 70 t c = +95c t c = -40c t c = +25c 3rd harmonic vs. rf frequency max2092 toc27 rf frequency (mhz) 3rd harmonic (dbc) 2200 1700 1200 50 60 70 80 40 700 2700 t c = +95c t c = +25c t c = -40c p out = 5dbm 3rd harmonic vs. rf frequency max2092 toc28 rf frequency (mhz) 3rd harmonic (dbc) 2200 1700 1200 50 60 70 80 40 700 2700 v cc = 4.75v, 5.00v, 5.50v, 5.80v p out = 5dbm 3rd harmonic vs. v plvlset setting (constant p out ) max2092 toc29 v plvlset (v) 3rd harmonic (dbc) 2.1 1.7 1.3 50 60 70 80 40 0.9 2.5 f rf = 1835mhz p out = 5dbm t c = +95c t c = -40c t c = +25c 3rd harmonic vs. v plvlset setting (constant p in ) max2092 toc30 v plvlset (v) 3rd harmonic (dbc) 1.50 1.25 1.00 60 70 80 90 100 110 50 0.75 1.75 f rf = 1835mhz p in = -6dbm t c = +95c t c = -40c t c = +25c max2092 700mhz to 2700mhz analog vga with threshold alarm circuit and error amplifier for level control
8 max2092 700mhz to 2700mhz analog vga with threshold alarm circuit and error amplifier for level control typical operating characteristics (continued) ( typical application circuit with analog attenuator set to minimum attenuation, v cc = 4.75v to 5.8v, f rf = -16dbm, t c = -40c to +95c, and rf ports are connected to 50? sources and loads, unless otherwise noted. typical values are at t c = +25c, v cc = 5.5v, p rf = -16dbm, ctrl1 = 1, ctrl2 = 0, v plvlset = 2.5v, unless otherwise noted.) oip2 vs. rf frequency max2092 toc31 rf frequency (mhz) oip2 (dbm) 2200 1700 1200 45 55 65 35 700 2700 t c = +95c t c = -40c t c = +25c p out = 2dbm/ tone oip2 vs. rf frequency max2092 toc32 rf frequency (mhz) oip2 (dbm) 2200 1700 1200 700 2700 p out = 2dbm/ tone 45 55 65 35 v cc = 4.75v v cc = 5.80v v cc = 5.00v v cc = 5.50v oip2 vs. v plvlset setting (constant p out ) max2092 toc33 v plvlset (v) oip2 (dbm) 2.1 1.7 1.3 0.9 2.5 f rf = 1835mhz p out = 2dbm/ tone 45 55 65 35 t c = +95c t c = -40c t c = +25c oip2 vs. v plvlset setting (constant p in ) max2092 toc34 v plvlset (v) oip2 (dbm) 1.50 1.25 1.00 0.75 1.75 f rf = 1835mhz p in = -6dbm/ tone 45 55 65 35 t c = +95c t c = -40c t c = +25c
9 max2092 700mhz to 2700mhz analog vga with threshold alarm circuit and error amplifier for level control pin description pin configuration pin name function 1 ctrl1 control-mode logic input 1 (3.3v logic) 2 r_bias bias resistor setting input. connect a resistor from this pin to ground. 3 v cc_a power-supply input. bypass to ground with a 0.01 f f capacitor as close as possible to the pin. 4 plvlset output-power level-setting dc input or analog attenuator control voltage 5 alm alarm logic output 6 amp_out error-amplifier output 7, 13-19 gnd ground 8 det_vin error-amplifier input voltage from an external detector 9 gnd do not directly connect to ep. connect to rf ground plane with a short trace using a separate via hole. 10 ctrl2 control-mode logic input 2 (3.3v logic) 11 v cc_rf driver-amplifier supply voltage input. bypass to ground with a 0.01 f f capacitor as close as possible to the pin. 12 rf_out driver-amplifier output (50 i ). requires a dc-blocking capacitor. 20 rf_in attenuator input (50 i ). requires a dc-blocking capacitor. ep exposed pad. internally connected to gnd. solder the exposed pad to a pcb pad that uses multiple ground vias to provide heat transfer out of the device into the pcb ground planes. these multiple via grounds are also required to achieve the noted rf performance. see the layout considerations section. max2092 tqfn top view 19 20 + 18 17 7 6 8 r_bias plvlset alm 9 ctrl1 gnd rf_out v cc_rf gnd 12 gnd 45 15 14 12 11 gnd rf_in gnd det_vin gnd amp_out v cc_a gnd 3 13 gnd 16 10 ctrl2 gnd
10 max2092 700mhz to 2700mhz analog vga with threshold alarm circuit and error amplifier for level control detailed description the max2092 is a high-linearity analog vga designed to interface with 50? systems operating in the 700mhz to 2700mhz frequency range. the analog attenuator is controlled by an external analog control voltage. the device features a gain range of 18.1db to -22.3db, a noise figure of 5.2db, oip3 linearity of +32.5dbm, and a wide rf bandwidth. each of these features makes the device an ideal vga for numerous receiver and transmit - ter applications. in addition, the device operates from a single +5v supply. applications information modes of operation the device can operate in several different modes, as summarized in table 1. vga-only mode operation vga-only mode operation consists of setting ctrl1 = logic 1 and ctrl2 = logic 0, and applying a dc value to plvlset between 0v and 2.5v dc to manually adjust the attenuation, and subsequently the rf_out power to any desired value. the output power at rf_out increases at a rate of 19.4db/v as plvlset is increased. in vga-only mode, operation components r5, r6, r7, and c8Cc11 can be left unpopulated, and ctrl2 needs to be tied directly to ground. closed-alc mode operation closed-alc mode operation consists of setting ctrl1 = ctrl2 = logic 1. the voltage on plvlset is set exter - nally to adjust output power from -20dbm to +5dbm when input power is in the recommended power range, typically -6dbm. see the typical application circuit . as plvlset increases, the output power also increases at a rate set by the external detector chosen. ideally, a detec - tor with an output voltage range of 0.1v dc to 2.4v dc is recommended, but the device operates with any detec - tor whose output ranges from 0v dc to 2.5v dc (output coupler at rf_out already taken into account). an error amplifier compares the det_vin voltage to plvlset, and drives the attenuator in servo fashion until the error- amplifiers differential input error voltage is near zero. the servo loop acts to maintain a regulated output power level over an input power range depending on the setting of plvlset. when used in conjunction with the max2091 if vga, it is recommended that an external voltage of 1.65v be applied to the if plvlset. this ensures that a nominal rf signal level of approximately -3dbm is output from the max2091. with this specific level setting, the complete max2091 + max2092 cascade yields a constant rf output power of -20.5dbm to +5dbm (depending on the setting of rf plvlset) over an if input power range of C24dbm to +1dbm. see figure 1 for details. contact the factory for additional details surrounding maxims max2091 + max2092 reference design. control inputs the device has three control inputs: ctrl1, ctrl2, and plvlset. v cc must be present before voltages are applied to these pins. in cases where this is not pos - sible, a 200? resistor must be included in series with the control inputs to limit on-chip esd diode conduction. ctrl1 and ctrl2 are 3v logic controls, and cannot be driven from 5v logic. in the case where no logic control is available and a logic high is required, a voltage divider can be used from the 5v v cc supply to produce the 3v logic-high. alarm operation the alarm remains in logic-high state when the voltage on det_vin (pin 8) is within the 0.175v to 2.25v range. the alarm threshold amount is an internal fixed value to the device with a nominal hysteresis of approximately 29mv. table 1. control mode logic ctrl1 ctrl2 vga alc loop alarm functional description 0 0 disabled disabled disabled power-down mode 1 0 enabled disabled disabled vga-only mode 1 1 enabled enabled enabled closed alc mode. alc loop locks det_vin to plvlset. 0 1 factory test mode (do not use)
11 max2092 700mhz to 2700mhz analog vga with threshold alarm circuit and error amplifier for level control det_vin in closed alc-loop mode, avoid directly loading pins amp_out and det_vin with capacitance in excess of 10pf on each pin. in closed alc-loop mode, this can cause ringing or instability in the power-control loop. as in any closed-loop system, one must be careful not to load det_vin or amp_out with additional external circuitry. therefore, it is suggested that in the closed- loop alc mode, no additional connections be made to det_vin or amp_out. amp_out and det_vin support a total trace routing capacitance of 10pf or less. connect pin 9 to the rf ground plane with a via separated from the exposed pad (ep) ground connection. pin 9 must not connect to the exposed pad or share a ground with any other component, and must connect directly to the solid ground plane below. as a reference, refer to the max2092evkit+ pcb artwork. layout considerations the pin configuration of the max2092 is optimized to facilitate a very compact physical layout of the device and its associated discrete components. the exposed pad of the devices 20-pin tqfn-ep package provides a low thermal-resistance path to the die. it is important that the pcb on which the device 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. pin 9 must not connect to the exposed pad or share a ground with any other component and must connect directly to the solid ground plane below. figure 1. cascaded if-rf lineup using the max2091 + max2092 40db max2091 2.5db pad alar m th re sh ol d if alarm out rf alarm out lo 38db if_i n -2 4d bm to +1 db m if pl vl se t (a na lo g contro l) input from external detector rf pl vl se t (a na lo g contro l) input from external detector rf _o ut -20. 5d bm to +5 db m max2092 alarm thresholds
12 max2092 700mhz to 2700mhz analog vga with threshold alarm circuit and error amplifier for level control table 2. typical application circuit component values note: the checkmarks in the mode of operation columns indicate that the component is used within each respective application. *c14 and r11 form an optional lowpass network to filter out potential noise from the the external plvlset control source. component mode of operation value size vendor description vga only closed alc c1 12pf 0402 murata c0g dielectric c2, c3 0.01 f f 0402 murata x7r dielectric c5 8.2pf 0402 murata c0g dielectric c8 100nf 0603 murata x7r dielectric c9 680pf 0402 murata c0g dielectric c10 120pf 0402 murata c0g dielectric c11 120pf 0402 murata c0g dielectric c14* do not install 0402 r1 1.78k i 0402 panasonic 1% tolerance r5 200 i 0402 panasonic 1% tolerance r6 51 i 0402 panasonic 5% tolerance r7 10k i 0402 panasonic 5% tolerance r11* 0 i 0402 panasonic 5% tolerance u1 20-pin tqfn (5mm x 5mm) maxim MAX2092ETP+
13 max2092 700mhz to 2700mhz analog vga with threshold alarm circuit and error amplifier for level control typical application circuit plvlset v cc_a alm r_bias rf_out rf_out ep det_vin ctrl2 gnd* gnd ctrl2 amp_out ctrl1 rf_in rf_in gnd gnd gnd gnd max2092 gnd gnd gnd v cc_rf v cc v low v high c9 c11 *see pin description c14 c2 c1 r11 r1 c8 c10 c3 c5 r5 r6 det_in r7 v cc 19 20 + 18 17 7 6 8 9 12 45 15 14 12 11 3 13 16 10
14 max2092 700mhz to 2700mhz analog vga with threshold alarm circuit and error amplifier for level control ordering information + denotes a lead(pb)-free/rohs-compliant package. * ep = exposed pad. * t = tape and reel. package information for the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages . note that a +, #, or - in the package code indicates rohs status only. package drawings may show a different suffix character, but the drawing pertains to the package regardless of rohs status. chip information process: sige bicmos part temp range pin-package MAX2092ETP+ -40 n c to +95 n c 20 tqfn-ep* MAX2092ETP+t -40 n c to +95 n c 20 tqfn-ep* package type package code outline no. land pattern no. 20 tqfn t2055+3 21-0140 90-0008
revision history revision number revision date description pages changed 0 6/12 initial release maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circuit patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. the parametric values (min and max limits) shown in the electrical characteristics table are guaranteed. other parametric values quoted in this data sheet are provided for guidance. maxim integrated products, inc. 160 rio robles, san jose, ca 95134 usa 1-408-601-1000 15 ? 2012 maxim integrated products maxim is a registered trademark of maxim integrated products, inc. max2092 700mhz to 2700mhz analog vga with threshold alarm circuit and error amplifier for level control

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