general description the max9502 small, low-power video amplifier with inte - grated reconstruction filter operates from a supply voltage as low as 2.5v. the small size and the low minimum sup - ply voltage make the max9502 ideal for portable applica - tions or small, low-power applications. the max9502 dc-couples the input and the output, resulting in a very small solution. the max9502 input can be directly connected to the output of a video digital- toanalog converter (dac). the reconstruction filter is implemented as a 4th-order chebyshev with a minimum passband of 5.5mhz, 3db attenuation at 8mhz, and 55db attenuation at 27mhz. the output amplifier provides a closed-loop gain of +6db (max9502g) or +12db (max9502m), and can drive a 2v p-p video signal into a 150 load to ground. the output signal is level-shifted so the sync tip is 110mv (typ) above ground. the max9502 operates from a 2.5v to 3.6v single supply and consumes only 5.3ma quiescent supply current. an active-low shutdown mode reduces the supply current to 0.01a. the max9502 is available in tiny 6-pin dfn (1mm x 1.5mm x 0.8mm) and 5-pin sc70 packages. the device is specified over the -40c to +85c extended and -40c to +125c automotive temperature ranges. applications mobile phones digital still cameras portable video security/cctv features tiny 6-pin dfn (1mm x 1.5mm x 0.8mm) and 5-pin sc70 packages dc-coupled input and output save board space 4-pole chebyshev filter 5.5mhz passband 55db attenuation at 27mhz 0.01a low-current shutdown mode 2.5v to 3.6v single-supply operation video amplifier with fixed gains of +6db (max9502g) or +12db (max9502m) pin configurations appear at end of data sheet.ordering information continued at end of data sheet. 19-3674; rev 2; 5/14 +denotes lead-free package. product features max9503 directdrive?, lpf, tqfn max9505 directdrive, lpf, analog switch, tqfn max4090 input clamp, dfn, sot23, sc70 max9504 optional dc offset bias, dfn, sot23 part pin-package temp range gain top mark max9502gaalt+t 6 dfn-6 -40c to +125c +6 li max9502gaaxk+t 5 sc70-5 -40c to +125c +6 aso MAX9502GELT+t 6 dfn-6 -40c to +85c +6 au max9502gexk+t 5 sc70-5 -40c to +85c +6 arv max9502 video amp gain = +6db max9502g gain = +12db max9502m shutdown circuit lowpass filter z0 = 75 ? 75 ? out gnd 75 ? television shdn in on off video dac video asic 0.1f v cc max9502 2.5v video amplifier with reconstruction filter typical operating circuit other portable video ampliiers ordering information evaluation kit available downloaded from: http:///
v cc to gnd..............................................................-0.3v to +4v shdn , in, out to gnd..............................-0.3v to (v cc + 0.3v) out short-circuit duration to v cc , gnd............continuous continuous power dissipation (t a = +70c) 5-pin sc70 (derate 3.1mw/c above +70c) . .. .247mw 6-pin dfn (derate 2.1mw/c above +70c) . ...168mw operating temperature ranges: max9502ge/me .............................................-40c to +85c max9502ga/ma............................................-40c to +125c junction temperature......................................................+150c storage temperature range .............................-65c to +150c lead temperature (soldering, 10s) .................................+300c (v cc = shdn = 3.0v, gnd = 0v, no load, t a = t min to t max , unless otherwise noted. typical values are at t a = +25c, unless otherwise noted.) (note 1) parameter symbol conditions min typ max units supply voltage range v cc guaranteed by psrr 2.5 3.6 v quiescent supply current i cc v in = 0v, 2.5v v cc 3.6v, shdn = v cc, t a = -40c to +85c 5.3 9 ma v in = 0v, 2.5v v cc 3.6v, shdn = v cc, t a = -40c to +125c 11 shutdown supply current i shdn v shdn = 0v 0.01 1 a input voltage range v in guaranteed by dc voltage gain (max9502g) v cc = 2.5v 0 1.05 v v cc = 3.0v 0 1.2 guaranteed by dc voltage gain (max9502m) v cc = 2.5v 0 0.525 v cc = 3.0v 0 0.6 input current i in v in = 0v 3.5 10 a input resistance r in ?v in /?i in 17 m? dc voltage gain (note 2) a v r l = 150? to gnd, v cc = 2.5v to 3v max9502g 5.5 6 6.5 db max9502m 11.5 12 12.5 output sync-tip level v stip measured at out, v in = 0v, r l = 150? to gnd 110 230 mv output voltage swing v out max9502g, r l = 150? to gnd v cc = 2.5v, 0 v in 1.05v 1.97 2.1 2.23 v p-p v cc = 3.0v, 0 v in 1.2v 2.26 2.4 2.54 max9502m, r l = 150? to gnd v cc = 2.5v, 0 v in 0.525v 1.97 2.1 2.23 v cc = 3.0v, 0 v in 0.6v 2.26 2.4 2.54 output short-circuit current threshold i sc sourcing (note 3) 95 ma output resistance r out 0.15 ? shutdown output impedance r out(off) v shdn = 0v 4 k? dc power-supply rejection ratio psrr dc v in = 0v, 2.5v v cc 3.6v 50 90 db logic inputs ( shdn ) logic-low level v il t a = -40c to +85c 0.8 v t a = -40c to +125c 0.65 logic-high level v ih 2.0 v logic input current i il shdn = gnd and v cc 1 a max9502 2.5v video ampliier with reconstruction filter www.maximintegrated.com maxim integrated 2 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 operation 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. dc electrical characteristics downloaded from: http:///
(v cc = shdn = 3.0v, gnd = 0v, r l = 150 to gnd, t a = +25c, unless otherwise noted.) (note 1) note 1: all devices are 100% production tested at t a = +25c. specifications over temperature limits are guaranteed by design. note 2: dc voltage gain (a v ) is a two-point measurement in which the output voltage swing is divided by the input voltage swing. note 3: short-circuit current is the trip current for the protection. during the protection, out is switche d alternatively on and off. parameter symbol conditions min typ max units passband flatness v out = 2v p-p , f = 100khz to 5.5mhz, latness is referred to 100khz -1 +1 db attenuation f dt v out = 2v p-p , attenuation is referred to 100khz f = 8mhz 3 db f = 27mhz 35 55 power-supply rejection ratio psrr f = 100khz 56 db output impedance z out v out = 1.5v dc; f = 5mhz 2.5 ? differential gain error dg ntsc, v out = 2v p-p max9502g 0.4 % max9502m 0.4 differential phase error dp ntsc, v out = 2v p-p max9502g 0.4 degrees max9502m 0.4 2t pulse-to-bar k rating 2t = 250ns; bar time is 18s; the beginning 2.5% and the ending 2.5% of the bar time are ignored 0.2 k% 2t pulse response 2t = 250ns 0.3 k% 2t bar response 2t = 250ns; bar time is 18s; the beginning 2.5% and the ending 2.5% of the bar time are ignored 0.4 k% nonlinearity 5-step staircase 0.4 % line time distortion 0 % field time distortion 0 % group-delay variation ?(d j /d w ) f = 100khz to 5.5mhz max9502g 30 ns max9502m 30 peak signal to rms noise snr v out = 2v p-p , 100khz to 5mhz max9502g 68 db max9502m 65 enable time t on v shdn = 3v, v out settled to within 1% of the inal voltage max9502g (v in = 1v) 800 ns max9502m (v in = 0.5v) 800 disable time t off v shdn = 0v, v out settled to below 1% of the output voltage max9502g (v in = 1v) 220 ns max9502m (v in = 0.5v) 175 max9502 2.5v video ampliier with reconstruction filter www.maximintegrated.com maxim integrated 3 ac electrical characteristics downloaded from: http:///
v cc = shdn = 3.0v, gnd = 0v, r l = 150 to gnd.) max9502m small-signal bandwidth max9502 toc02 frequency (mhz) response (db) 10 1 -50 -40 -30 -20 -10 0 10 20 -60 0.1 100 v out = 100mv p-p max9502g small-signal gain flatness max9502 toc03 frequency (mhz) response (db) 1 4 5 6 7 8 93 0.1 10 v out = 100mv p-p max9502m small-signal gain flatness max9502 toc04 frequency (mhz) response (db) 1 10 11 12 13 14 15 9 0.1 10 v out = 100mv p-p max9502g large-signal bandwidth max9502 toc05 frequency (mhz) response (db) 10 1 0.1 100 v out = 2v p-p -50 -40 -30 -20 -10 0 10 20 -60 max9502m large-signal bandwidth max9502 toc06 frequency (mhz) response (db) 10 1 -50 -40 -30 -20 -10 0 10 20 -60 0.1 100 v out = 2v p-p max9502g large-signal gain flatness max9502 toc07 frequency (mhz) response (db) 1 4 5 6 7 8 93 0.1 10 v out = 2v p-p max9502g small-signal bandwidth max9502 toc01 frequency (mhz) response (db) 10 1 -50 -40 -30 -20 -10 0 10 20 -60 0.1 100 v out = 100mv p-p max9502m large-signal gain flatness max9502 toc08 frequency (mhz) response (db) 1 10 11 12 13 14 15 9 0.1 10 v out = 2v p-p max9502g group delay max9502 toc09 frequency (mhz) delay (ns) 1 60 80 100 120 140 160 180 200 40 0.1 10 maxim integrated 4 www.maximintegrated.com max9502 2.5v video ampliier with reconstruction filter typical operating characteristics downloaded from: http:///
v cc = shdn = 3.0v, gnd = 0v, r l = 150 to gnd.) max9502m group delay max9502 toc10 frequency (mhz) delay (ns) 1 60 80 100 120 140 160 180 200 40 0.1 10 max9502g power-supply rejection ratio max9502 toc11 frequency (mhz) response (db) 1 0.1 0.001 0.01 -90 -80 -70 -50 -60 -40 -30 -20 -10 0 -100 0.0001 10 max9502m power-supply rejection ratio max9502 toc12 frequency (mhz) response (db) 1 0.1 0.001 0.01 -90 -70 -80 -60 -50 -40 -30 -20 -10 0 -100 0.0001 10 supply current vs. temperature max9502 toc13 temperature (c) supply current (ma) 60 35 -15 10 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.03.0 -40 85 max9502g max9502m supply current vs. shdn input voltage max9502 toc14 shdn input voltage (v) supply current (ma) 2.5 2.0 1.5 1.0 0.5 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 0 0 3.0 v shdn = rising shutdown logic threshold vs. supply voltage max9502 toc15 supply voltage (v) shutdown logic threshold (v) 3.5 3.4 3.3 3.2 3.1 3.0 2.9 2.8 2.7 2.6 0.5 1.0 1.5 2.0 2.5 3.0 0 2.5 3.6 v shdn = rising max9502g voltage gain vs. temperature max9502 toc16 temperature (c) gain (db) 60 35 10 -15 5.7 5.9 6.1 6.3 6.55.5 -40 85 max9502m voltage gain vs. temperature max9502 toc17 temperature (c) gain (db) 60 35 10 -15 11.7 11.9 12.1 12.3 12.511.5 -40 85 max9502g differential gain and phase max9502 toc18 differential gain (%) 6 5 4 3 2 0.2 0.1 -0.3 -0.1 0.4 -0.4 1 7 differential phase (deg) 6 5 4 3 2 0.4 0 -0.4 0.8 -0.8 1 7 maxim integrated 5 www.maximintegrated.com max9502 2.5v video ampliier with reconstruction filter typical operating characteristics (continued) downloaded from: http:///
v cc = shdn = 3.0v, gnd = 0v, r l = 150 to gnd.) max9502g 2t response max9502 toc20 in200mv/div out 400mv/div 100ns/div max9502m 2t response max9502 toc21 out 400mv/div in 100mv/div 100ns/div max9502g modulated 12.5t response max9502 toc22 in200mv/div out 400mv/div 400ns/div max9502m modulated 12.5t response max9502 toc23 out 400mv/div in 100mv/div 400ns/div max9502m differential gain and phase max9502 toc19 differential gain (%) 6 5 4 3 2 0.2 0 -0.2 0.4 -0.4 1 7 differential phase (deg) 6 5 4 3 2 0.4 0 -0.4 0.8 -0.8 1 7 max9502g ntc-7 composite response max9502 toc24 in500mv/div 0v 0v out1v/div 10s/div maxim integrated 6 www.maximintegrated.com max9502 2.5v video ampliier with reconstruction filter typical operating characteristics (continued) downloaded from: http:///
v cc = shdn = 3.0v, gnd = 0v, r l = 150 to gnd.) pin name function dfn sc70 1 1 in video input 2 2 gnd ground 3 3 shdn active-low shutdown input. connect to gnd to shutdown. 4 4 v cc positive power supply 5 n.c. no connection. not internally connected. 6 5 out video output max9502m ntc-7 composite response max9502 toc25 out 1v/div in 250mv/div 10s/div 0v0v max9502g multiburst response max9502 toc26 out 1v/div in 500mv/div 10s/div 0v0v max9502m multiburst response max9502 toc27 out 1v/div in 250mv/div 10s/div 0v0v max9502g field square-wave response max9502 toc28 out 1v/div in 500mv/div 2ms/div 0v 0v max9502m field square-wave response max9502 toc29 out 1v/div in 250mv/div 2ms/div 0v0v maxim integrated 7 www.maximintegrated.com max9502 2.5v video ampliier with reconstruction filter typical operating characteristics (continued) pin description downloaded from: http:///
detailed description the max9502 filters and amplifies the video dac output in applications such as digital still cameras and mobile phones. the max9502 consists of a lowpass filter and an output video buffer capable of driving a standard 150 video load to ground. the max9502g output buffer pro - vides a fixed gain of +6db, while the max9502m output buffer provides a fixed gain of +12db. filter the max9502 contains a 4th-order chebyshev recon - struction filter. the chebyshev-type response features a 0.4db flat passband for ntsc and pal signals. the stop - band offers 55db (typ) of attenuation at 27mhz and above (see the typical operating characteristics ). output ampliier the max9502g features a +6db gain, while the max9502m features a +12db gain. operating from a 2.5v to 3.0v supply, the output amplifier is able to drive a 2v signal into a 150 video load to ground. operating from a 3.0v to 3.6v supply, the output amplifier is able to drive a 2.4v p-p signal into a 150 video load to ground. the out - put is typically offset 110mv above ground to guarantee linear operation of the amplifier. the max9502 output only sources current; all loads should be connected to ground. short-circuit protection the max9502 typical application circuit includes a 75 back-termination resistor that limits short-circuit currents for an external short applied at the video output. the max9502 features internal output short-circuit protection to prevent device damage in prototyping and applications where the amplifier output can be directly shorted. short-circuit protection activates if the output is short- circuited and the output current exceeds 95ma. during short-circuit protection, the output of the max9502 is shut off for 12s and then turns on for 0.8s. if the short is still present, the max9502 output shuts off again. extended short circuits result in a pulsed output. the device resumes normal operation after the short is removed. applications information input considerations the max9502 input is dc-coupled. when the supply volt - age is between a 2.5v and 3v supply, the input voltage range extends from ground to 1.05v for the max9502g and from ground to 0.525v for the max9502m. when the supply voltage is between 3v and 3.6v, the input voltage range extends from ground to 1.2v for the max9502g and from ground to 0.6v for the max9502m. the max9502g accepts a composite video signal with a sync tip from 0 to 50mv and the max9502m accepts a composite video signal with a sync tip from 0 to 25mv. a typical current- output dac that operates from a single supply usually creates a composite video signal with a sync tip very close to ground. hence, the dac output can be directly connected to the max9502 input. keep the board trace as short as possible to minimize parasitic stray capacitance and prevent unintentional high-frequency attenuation. output considerations the max9502 output must be dc-coupled. no ac-coupling capacitors are allowed. the max9502 con - nects directly to the video cable through a 75 series backtermination resistor. the other end of the cable should be properly terminated with a 75 resistor as well. because of this configuration, the peak-to-peak amplitude as well as the dc level of the signal is divided by two. the max9502 output signal is level-shifted up so the sync tip is around 110mv. power-supply bypassing and layout considerations the max9502 operates from a single-supply voltage down to 2.5v, allowing for low-power consumption. bypass v cc to gnd with a 0.1f capacitor. place all external components as close to the device as possible. max9502 2.5v video ampliier with reconstruction filter www.maximintegrated.com maxim integrated 8 downloaded from: http:///
+denotes lead-free package. part pin-package temp range gain top mark max9502maalt+t 6 dfn-6 -40c to +125c +12 lj max9502maaxk+t 5 sc70-5 -40c to +125c +12 asp max9502melt+t 6 dfn-6 -40c to +85c +12 av max9502mexk+t 5 sc70-5 -40c to +85c +12 arw package type package code outline no. land pattern no. 6 dfn l611+1 21-0147 90-0080 5 sc70 x5+1 21-0076 90-0188 top view sc70 gnd v cc shdn 1 5 out in max9502 23 4 gnd v cc 1 6 out 5 n.c. in max9502 dfn 2 3 4 shdn max9502 2.5v video ampliier with reconstruction filter www.maximintegrated.com maxim integrated 9 ordering information (continued)pin conigurations chip information process: bicmos package information for the latest package outline information and land patterns (footprints), go to www.maximintegrated.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. downloaded from: http:///
revision number revision date description pages changed 2 5/14 removed automotive reference in applications section 1 maxim integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim integrated product. no circuit patent licenses are implied. maxim integrated reserves the right to change the circuitry and speciications without n otice 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 and the maxim integrated logo are trademarks of maxim integrated products, inc. ? 2014 maxim integrated products, inc. 10 max9502 2.5v video ampliier with reconstruction filter revision history for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim integrateds website at www.maximintegrated.com. downloaded from: http:///
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