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general description the max2057 general-purpose, high-performance vari- able-gain amplifier (vga) is designed to operate in the 1700mhz to 2500mhz frequency range*. this device features 15.5db of gain, 6db of noise figure, and an out- put 1db compression point of 23.8dbm. the max2057 also provides an exceptionally high oip3 level of 37dbm, which is maintained over the entire attenuation range. in addition, the on-chip analog attenuators yield infinite control and high attenuation accuracy over selectable 21db or 42db control ranges. each of these features makes the max2057 an ideal vga for dcs/pcs, cdma2000, w-cdma, and phs/pas trans- mitter and power amplifier agc circuits. the max2057 is pin compatible with the max2056 800mhz to 1000mhz vga, making this family of ampli- fiers ideal for applications where a common pc board layout is used for both frequency bands. the max2057 operates from a single +5v supply and is available in a compact 36-pin thin qfn package (6mm x 6mm x 0.8mm) with an exposed paddle. electrical performance is guaranteed over the extended -40? to +85? temperature range. applications dcs 1800/pcs 1900 2g and 2.5g edge base- station transmitters and power amplifiers cdmaone, cdma2000, base-station transmitters and power amplifiers umts/w-cdma and other 3g base-station transmitters and power amplifiers phs/pas base-station transmitters and power amplifiers transmitter gain control receiver gain control broadband systems automatic test equipment digital and spread-spectrum communication systems microwave terrestrial links cdmaone is a trademark of cdma development group. cdma2000 is a registered trademark of telecommunications industry association. features ? 1700mhz to 2500mhz rf frequency range* ? 37dbm constant oip3 (over all gain settings) ? 23.8dbm output 1db compression point ? 15.5db typical gain at maximum gain setting ? 0.5db gain flatness over 100mhz bandwidth ? 6db noise figure at maximum gain setting (using 1 attenuator) ? two gain-control ranges: 21db and 42db ? analog gain control ? single +5v supply voltage ? pin compatible with max2056, 800mhz to 1000mhz rf vga ? external current-setting resistors provide option for operating vga in reduced-power/reduced- performance mode ? lead-free package available * note: operation beyond this range is possible, but has not been characterized. max2057 1700mhz to 2500mhz variable-gain amplifier with analog gain control ________________________________________________________________ maxim integrated products 1 ordering information 19-3510; rev 0; 1/05 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. evaluation kit available part temp range pin-package pkg code m ax 2057e tx -40 c to +85 c 36 thin qfn-ep** 6mm x 6mm t3666-2 m ax 2057e tx - t -40 c to +85 c 36 thin qfn-ep** 6mm x 6mm t3666-2 m ax 2057e tx + d -40 c to +85 c 36 thin qfn-ep** 6mm x 6mm t3666-2 m ax 2057e tx + td -40 c to +85 c 36 thin qfn-ep** 6mm x 6mm t3666-2 ** ep = exposed paddle. + = lead (pb) free. d = dry pack. -t = tape-and-reel package. pin configuration/functional diagram appear at end of data sheet.
max2057 1700mhz to 2500mhz variable-gain amplifier with analog gain control 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 v cntl to gnd (with v cc applied) .............................0v to 4.75v current into v cntl pin (v cc grounded) .............................40ma all other pins to gnd.................................-0.3v to (v cc + 0.3v) rf input power (in, in_a, attn_out, out_a) ...........+20dbm rf input power (amp_in)...............................................+12dbm ja (natural convection)...................................................35?/w ja (1m/s airflow) .............................................................31?/w ja (2.5m/s airflow) ..........................................................29?/w jc (junction to exposed paddle) ....................................10?/w operating temperature range ...........................-40? to +85? storage temperature range .............................-65? to +150? junction temperature ......................................................+150? lead temperature (soldering, 10s) .................................+300? dc electrical characteristics (v cc = +4.75v to +5.25v, no rf signals applied, all input and output ports terminated with 50 ? , t a = -40? to +85?, unless other- wise noted. typical values are at v cc = +5.0v, t a = +25?, unless otherwise noted.) parameter conditions min typ max units supply voltage 4.75 5 5.25 v supply current r1 = 1.2k ? , r2 = 2k ? (note 1) 180 230 ma r set1 current r1 = 1.2k ? (note 1) 1 ma r set2 current r1 = 2k ? (note 1) 0.6 ma gain-control voltage range (note 2) 1.0 4.5 v gain-control pin input resistance v cntl = 1v to 4.5v 250 500 k ? ac electrical characteristics (typical operating circuit with one attenuator connected, v cc = +4.75v to +5.25v, t a = -40? to +85?, unless otherwise noted. typical values are at v cc = +5.0v, r1 = 1.2k ? , r2 = 2k ? , p out = +5dbm, f in = 2100mhz, v cntl = 1v, 50 ? system impedance, second attenuator is not connected, t a = +25?, unless otherwise noted.) (note 3) parameter conditions min typ max units frequency range 1700 2500 mhz gain t a = +25?c 13.5 15.5 17.5 db v cntl = 1v +0.9 v cntl = 1.8v +0.41 v cntl = 2.6v +0.09 t a = +25?c to -40?c v cntl = 3.5v -0.16 v cntl = 1v -1 v cntl = 1.8v -0.56 v cntl = 2.6v -0.32 maximum gain variation t a = +25?c to +85?c v cntl = 3.5v +0.1 db reverse isolation 37 db noise figure (note 4) 6 db output 1db compression point +23.8 dbm output 2nd-order intercept point from maximum gain to 15db attenuation, measured at f 1 + f 2 (note 5) +64 dbm output 3rd-order intercept point from maximum gain to 15db attenuation (note 5) +37 dbm
max2057 1700mhz to 2500mhz variable-gain amplifier with analog gain control _______________________________________________________________________________________ 3 ac electrical characteristics (continued) (typical operating circuit with one attenuator connected, v cc = +4.75v to +5.25v, t a = -40? to +85?, unless otherwise noted. typical values are at v cc = +5.0v, r1 = 1.2k ? , r2 = 2k ? , p out = +5dbm, f in = 2100mhz, v cntl = 1v, 50 ? system impedance, second attenuator is not connected, t a = +25?, unless otherwise noted.) (note 3) note 1: total supply current reduces as r 1 and r 2 are increased. note 2: operating outside this range for extended periods may affect device reliability. limit pin input current to 40ma when v cc is not present. note 3: all limits include external component losses, unless otherwise noted. note 4: noise figure increases by approximately 1db for every 1db of gain reduction. note 5: f 1 = 2100mhz, f 2 = 2101mhz, +5dbm/tone at out. note 6: switching time is measured from 50% of the control signal to when the rf output settles to ?db. parameter conditions min typ max units t a = +25? to +85? -0.83 output 3rd-order intercept point variation over temperature t a = +25? to -40? -0.6 db 2nd harmonic from maximum gain to 15db attenuation, p out = +5dbm -65 dbc 3rd harmonic from maximum gain to 15db attenuation, p out = +5dbm -83 dbc one attenuator 17 20.7 rf gain-control range f rf = 1.7ghz to 2.2ghz, v cntl = 1v to 4.5v two attenuators 34 42.4 db rf gain-control slope v cntl = 1.8v to 3.5v -10 db/v maximum rf gain-control slope maximum slope vs. gain-control voltage -15.2 db/v gain flatness over 100mhz bandwidth peak-to-peak for all settings 0.5 db attenuator switching time 15db attenuation change (note 6) 500 ns attenuator insertion loss second attenuator (in_a, out_a) 2.2 db input return loss entire band, all gain settings 18 db output return loss entire band, all gain settings 15 db group delay input/output 50 ? lines de-embedded 300 ps group delay flatness over 100mhz bandwidth peak to peak 20 ps group delay change vs. gain control v cntl = 1v to 4v -70 ps insertion phase change vs. gain control v cntl = 1v to 4v 50 degrees
max2057 1700mhz to 2500mhz variable-gain amplifier with analog gain control 4 _______________________________________________________________________________________ gain vs. gain-control voltage max2057 toc04 v cntl (v) gain (db) 3.5 3.0 2.5 2.0 1.5 -5 0 5 10 15 20 -10 1.0 4.0 t a = +25 c t a = -40 c t a = +85 c gain vs. rf frequency max2057 toc05 rf frequency (mhz) gain (db) 2300 2100 1900 1700 11 13 15 17 19 9 1500 2500 t a = -40 c t a = +25 c t a = +85 c reverse isolation vs. rf frequency max2057 toc06 rf frequency (mhz) reverse isolation (db) 2300 2100 1900 1700 30 35 40 25 1500 2500 t a = +25 c t a = +85 c t a = -40 c input return loss vs. rf frequency max2057 toc07 rf frequency (mhz) input return loss (db) 2300 2100 1700 1900 35 30 25 20 15 10 5 0 40 1500 2500 max gain 3db gain reduction 6db gain reduction 9db, 12db, 15db, 18db gain reduction output return loss vs. rf frequency max2057 toc08 rf frequency (mhz) output return loss (db) 2300 2100 1700 1900 35 30 25 20 15 10 5 0 40 1500 2500 max gain, 3db, 6db, 9db, 12db, 15db, and 18db gain reduction gain vs. rf frequency max2057 toc09 rf frequency (mhz) gain (db) 2300 2100 1900 1700 -5 0 5 10 15 20 -10 1500 2500 maximum gain 18db gain reduction supply current vs. supply voltage max2057 toc01 supply voltage (v) supply current (ma) 5.125 5.000 4.875 160 170 180 190 200 150 4.750 5.250 t a = +85 c t a = +25 c t a = -40 c input return loss vs. rf frequency max2057 toc02 rf frequency (mhz) input return loss (db) 2300 2100 1700 1900 35 30 25 20 15 10 5 0 40 1500 2500 t a = +85 c t a = +25 c t a = -40 c output return loss vs. rf frequency max2057 toc03 rf frequency (mhz) output return loss (db) 2300 2100 1700 1900 35 30 25 20 15 10 5 0 40 1500 2500 t a = +25 c t a = -40 c t a = +85 c t ypical operating characteristics one attenuator configuration (typical application circuit with one attenuator connected, v cc = +5.0v, r1 = 1.2k ? , r2 = 2k ? , f in = 2100mhz, maximum gain setting, p out = +5dbm, linearity measured at p out = +5dbm/tone, t a = +25?, unless otherwise noted.)
max2057 1700mhz to 2500mhz variable-gain amplifier with analog gain control _______________________________________________________________________________________ 5 output ip3 vs. rf frequency max2057 toc13 rf frequency (mhz) output ip3 (dbm) 2300 2100 1900 1700 32 34 36 38 40 30 1500 2500 t a = +85 c t a = +25 c t a = -40 c output ip3 vs. rf frequency max2057 toc14 rf frequency (mhz) output ip3 (dbm) 2300 2100 1900 1700 32 34 36 38 40 30 1500 2500 v cc = 4.75v v cc = 5.25v v cc = 5.00v input ip3 vs. attenuation max2057 toc15 attenuation (db) input ip3 (dbm) 15 10 5 23 26 29 32 35 38 41 20 020 t a = +25 c t a = +85 c t a = -40 c 30 32 36 34 38 40 output ip3 vs. attenuation max2057 toc16 attenuation (db) output ip3 (dbm) 010 51520 t a = +25 c t a = -40 c t a = +85 c 32 34 33 36 35 37 38 -6 0 3 -3 6 9 12 output ip3 vs. output power max2057 toc17 output power per tone (dbm) output ip3 (dbm) output ip2 vs. rf frequency max2057 toc18 rf frequency (mhz) output ip2 (dbm) 2300 2100 1900 1700 50 55 60 65 70 75 45 1500 2500 t a = +25 c t a = -40 c t a = +85 c reverse isolation vs. rf frequency max2057 toc10 rf frequency (mhz) reverse isolation (db) 2300 2100 1700 1900 25 30 35 40 45 50 55 60 20 1500 2500 maximum gain 18db gain reduction noise figure vs. rf frequency max2057 toc11 rf frequency (mhz) noise figure (db) 2300 2100 1700 1900 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 4.0 1500 2500 t a = +85 c t a = +25 c t a = -40 c noise figure vs. rf frequency max2057 toc12 rf frequency (mhz) noise figure (db) 2300 2100 1700 1900 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 4.0 1500 2500 v cc = 4.75v v cc = 5.25v v cc = 5.00v t ypical operating characteristics (continued) one attenuator configuration (typical application circuit with one attenuator connected, v cc = +5.0v, r1 = 1.2k ? , r2 = 2k ? , f in = 2100mhz, maximum gain setting, p out = +5dbm, linearity measured at p out = +5dbm/tone, t a = +25?, unless otherwise noted.)
max2057 1700mhz to 2500mhz variable-gain amplifier with analog gain control 6 _______________________________________________________________________________________ output p1db vs. rf frequency max2057 toc22 rf frequency (mhz) output p1db (dbm) 2300 2100 1900 1700 21 22 23 24 25 26 20 1500 2500 t a = +25 c t a = -40 c t a = +85 c output p1db vs. rf frequency max2057 toc23 rf frequency (mhz) output p1db (dbm) 2300 2100 1900 1700 21 22 23 24 25 26 20 1500 2500 v cc = 4.75v v cc = 5.25v v cc = 5.00v output ip2 vs. rf frequency max2057 toc19 rf frequency (mhz) output ip2 (dbm) 2300 2100 1900 1700 50 55 60 65 70 75 45 1500 2500 v cc = 4.75v v cc = 5.25v v cc = 5.00v input ip2 vs. attenuation max2057 toc20 attenuation (db) input ip2 (dbm) 15 10 5 45 50 55 60 65 70 40 020 t a = +25 c t a = -40 c t a = +85 c 55 60 65 70 0510 15 20 output ip2 vs. attenuation max2057 toc21 attenuation (db) output ip2 (dbm) t a = +25 c t a = -40 c t a = +85 c t ypical operating characteristics (continued) one attenuator configuration (typical application circuit with one attenuator connected, v cc = +5.0v, r1 = 1.2k ? , r2 = 2k ? , f in = 2100mhz, maximum gain setting, p out = +5dbm, linearity measured at p out = +5dbm/tone, t a = +25?, unless otherwise noted.)
max2057 1700mhz to 2500mhz variable-gain amplifier with analog gain control _______________________________________________________________________________________ 7 t ypical operating characteristics two attenuator configuration (typical application circuit with two attenuators connected, v cc = +5.0v, r1 = 1.2k ? , r2 = 2k ? , f in = 2100mhz, maximum gain setting, p out = +5dbm, linearity measured at p out = +5dbm/tone, t a = +25?, unless otherwise noted.) input return loss vs. rf frequency max2057 toc24 rf frequency (mhz) input return loss (db) 2300 2100 1700 1900 35 30 25 20 15 10 5 0 40 1500 2500 t a = +25 c t a = -40 c t a = +85 c output return loss vs. rf frequency max2057 toc25 rf frequency (mhz) output return loss (db) 2300 2100 1700 1900 35 30 25 20 15 10 5 0 40 1500 2500 t a = -40 c t a = +25 c t a = +85 c gain vs. gain-control voltage max2057 toc26 v cntl (v) gain (db) 3.5 3.0 2.5 2.0 1.5 -25 -15 -5 5 15 -35 1.0 4.0 t a = -40 c t a = +25 c t a = +85 c gain vs. rf frequency max2057 toc27 rf frequency (mhz) gain (db) 2300 2100 1900 1700 9 11 13 15 17 7 1500 2500 t a = -40 c t a = +25 c t a = +85 c
max2057 1700mhz to 2500mhz variable-gain amplifier with analog gain control 8 _______________________________________________________________________________________ output ip3 vs. rf frequency max2057 toc34 rf frequency (mhz) output ip3 (dbm) 2300 2100 1900 1700 32 34 36 38 40 30 1500 2500 t a = +85 c t a = +25 c t a = -40 c output ip2 vs. rf frequency max2057 toc35 rf frequency (mhz) output ip2 (dbm) 2300 2100 1900 1700 50 55 60 65 70 75 45 1500 2500 t a = +85 c t a = +25 c t a = -40 c t ypical operating characteristics (continued) two attenuator configuration (typical application circuit with two attenuators connected, v cc = +5.0v, r1 = 1.2k ? , r2 = 2k ? , f in = 2100mhz, maximum gain setting, p out = +5dbm, linearity measured at p out = +5dbm/tone, t a = +25?, unless otherwise noted.) reverse isolation vs. rf frequency max2057 toc28 rf frequency (mhz) reverse isolation (db) 2300 2100 1900 1700 35 40 45 30 1500 2500 t a = +25 c t a = +85 c t a = -40 c input return loss vs. rf frequency max2057 toc29 rf frequency (mhz) input return loss (db) 2300 2100 1700 1900 35 30 25 20 15 10 5 0 40 1500 2500 maximum gain 6db gain reduction 12db, 18db, 24db, 30db gain reduction output return loss vs. rf frequency max2057 toc30 rf frequency (mhz) output return loss (db) 2300 2100 1700 1900 35 30 25 20 15 10 5 0 40 1500 2500 6db, 12db, 18db, 24db, 30db gain reduction maximum gain gain vs. rf frequency max2057 toc31 rf frequency (mhz) gain (db) 2300 2100 1900 1700 -20 -15 -5 -10 0 5 10 15 20 -25 1500 2500 maximum gain 30db gain reduction reverse isolation vs. rf frequency max2057 toc32 rf frequency (mhz) reverse isolation (db) 2300 2100 1700 1900 30 40 50 60 70 80 20 1500 2500 30db gain reduction maximum gain noise figure vs. rf frequency max2057 toc33 rf frequency (mhz) noise figure (db) 2300 2100 1700 1900 7.0 7.5 6.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 6.0 1500 2500 t a = +85 c t a = +25 c t a = -40 c
max2057 1700mhz to 2500mhz variable-gain amplifier with analog gain control _______________________________________________________________________________________ 9 pin description pin name function 1, 3, 4, 6, 7, 9, 10, 12, 14, 18, 19, 21?4, 27, 28, 30, 31, 33, 34, 36 gnd ground. connect to the board? ground plane using low-inductance layout techniques. 2 out_a second-attenuator output. internally matched to 50 ? over the operating frequency band. connect to in through a dc-blocking capacitor if greater than 21db of gain-control range is required. no connection is required if the second attenuator is not used. 5, 13, 16, 25, 32 v cc power supply. bypass each pin to gnd with capacitors as shown in the typical application circuit. place capacitors as close to the pin as possible. 8 in_a second-attenuator input. internally matched to 50 ? over the operating frequency band. connect to a 50 ? rf source through a dc-blocking capacitor if greater than 21db of gain-control range is required. no connection is required if the second attenuator is not used. 11 v cntl analog gain-control input. limit voltages applied to this pin to a 1v to 4.5v range when v cc is present to ensure device reliability. 15 r set1 first-stage amplifier bias-current setting. connect to gnd through a 1.2k ? resistor. 17 r set2 second-stage amplifier bias-current setting. connect to gnd through a 2k ? resistor. 20 out rf output. internally matched to 50 ? over the operating frequency band. requires a dc-blocking capacitor and a shunt-matching capacitor. 26 amp_in amplifier input. internally matched to 50 ? over the operating frequency band. connect to attn_out through a dc-blocking capacitor. 29 attn_out attenuator output. internally matched to 50 ? over the operating frequency band. connect to amp_in through a dc-blocking capacitor. 35 in rf input. internally matched to 50 ? over the operating frequency band. connect to a 50 ? rf source through a dc-blocking capacitor if the second attenuator is not used. exposed paddle gnd exposed paddle ground plane. this paddle affects rf performance and provides heat dissipation. this paddle must be soldered evenly to the board? ground plane for proper operation.
max2057 1700mhz to 2500mhz variable-gain amplifier with analog gain control 10 ______________________________________________________________________________________ detailed description the max2057 general-purpose, high-performance vga with analog gain control is designed to interface with 50 ? systems operating in the 1700mhz to 2500mhz frequency range. the max2057 integrates two attenuators to provide 21db or 42db of precision analog gain control, as well as a two-stage amplifier that has been optimized to provide high gain, high ip3, low noise figure, and low power consumption. the bias current of each amplifier stage can be adjusted by individual external resistors to further reduce power consumption for applications that do not require high linearity. max2057 27 26 25 24 23 32 31 30 29 28 gnd v gc gnd gnd gnd out gnd gnd gnd gnd gnd gnd gnd out_a gnd in_a c4 c6 c10 c13 c5 rf output r1 r2 c2 c1 c15 c9 c3 v cc v cc v cc c14 c8 v cc rf input* * note: connect the input according to the solid bold line if one attenuator is used. connect the input according to the broken line if two attenuators are used. v cc v cc gnd gnd in gnd gnd v cc gnd gnd attn_out amp_in gnd 36 35 34 33 14 15 16 17 18 10 11 12 13 22 20 21 19 5 4 3 2 9 8 7 6 1 + - attenuation control circuitry v cc v cntl gnd v cc gnd r set1 v cc r set2 gnd c17 0.06in long fr4 50 ? transmission line ep c7 figure 1. typical application circuit
max2057 1700mhz to 2500mhz variable-gain amplifier with analog gain control ______________________________________________________________________________________ 11 applications information analog attenuation control a single input voltage at the v cntl pin adjusts the gain of the max2057. up to 21db of gain-control range is provided through a single attenuator. at the maximum gain setting, each attenuator? insertion loss is approxi- mately 2.2db. with the single attenuator at the maximum gain setting, the device provides a nominal 15.5db of cascaded gain and 6db of cascaded noise figure. if a larger gain-control range is desired, a second on- chip attenuator can be connected in the signal path to provide an additional 21db of gain-control range. with the second attenuator connected at the maximum gain setting, the device typically exhibits 13.3db of cascad- ed gain. note that the v cntl pin simultaneously adjusts both on-chip attenuators. the v cntl input voltage drives a high-impedance load (>250k ? ). it is suggested that a current-limiting resistor be included in series with this connection to limit the input current to less than 40ma should the control volt- age be applied when v cc is not present. a series resis- tor of greater than 200 ? will provide complete protection for 5v control voltage ranges. limit v cntl input voltages to a 1.0v to 4.5v range when v cc is present to ensure the reliability of the device. amplifier bias current the max2057 integrates a two-stage amplifier to simul- taneously provide high gain and high ip3. optimal per- formance is obtained when r1 and r2 are equal to 1.2k ? and 2k ? , respectively. the typical supply current is 180ma and the typical output ip3 is 37dbm under these conditions. increasing r 1 and r 2 from the nominal values of 1.2k ? and 2k ? reduces the bias current of each amplifier stage, which reduces the total power consumption and ip3 of the device. this feature can be utilized to further decrease power consumption for applications that do not require high ip3. 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 best performance, route the ground-pin traces directly to the exposed pad underneath the package. this pad must be connected to the ground plane of the board by using multiple vias under the device to provide the best rf and thermal conduction path. solder the exposed pad on the bottom of the device package to a pc board exposed pad. power-supply bypassing proper voltage-supply bypassing is essential for high- frequency circuit stability. bypass each v cc pin with capacitors placed as close to the device as possible. place the smallest capacitor closest to the device. refer to the max2057 evaluation kit data sheet for more details. exposed paddle rf and thermal considerations the ep of the max2057? 36-pin thin qfn-ep package provides a low-thermal-resistance path to the die. it is important that the pc board on which the ic is mounted be designed to conduct heat from this contact. in addi- tion, the ep provides a low-inductance rf ground path for the device. the ep must be soldered to a ground plane on the pc board either directly or through an array of plated via holes. soldering the pad to ground is also critical for efficient heat transfer. use a solid ground plane wher- ever possible. designation value type c1, c3, c5, c7, c10 22pf microwave capacitors (0402) c2, c4, c6, c8, c9 1000pf microwave capacitors (0402) c13, c14, c15 0.1? microwave capacitors (0603) c17 0.75pf microwave capacitor (0402) r1 1.2k ? ?% resistor (0402) r2 2k ? ?% resistor (0402) table 1. typical application circuit component values
max2057 1700mhz to 2500mhz variable-gain amplifier with analog gain control 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. 12 ____________________maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 2005 maxim integrated products printed usa is a registered trademark of maxim integrated products, inc. pin configuration/ functional diagram max2057 27 26 25 24 23 32 31 30 29 28 gnd gnd gnd gnd out gnd gnd gnd gnd gnd gnd out_a gnd gnd in_a v cc v cc gnd gnd in gnd gnd v cc gnd gnd attn_out amp_in gnd v cntl gnd v cc gnd r set1 v cc r set2 gnd 36 35 34 33 14 15 16 17 18 10 11 12 13 22 20 21 19 5 4 3 2 9 8 7 6 1 attenuation control circuitry ep chip information transistor count: 5191 process: bicmos package information for the latest package outline information, go to www.maxim-ic.com/packages .

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