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1 ? fn6172.4 isl59111 8mhz rail-to-rail co mposite video driver the isl59111 is a single rail-to-rail 3-pole output reconstruction filter with a - 3db roll-off frequency of 8mhz and a slew rate of 40v/s, with input signal dc restoration accomplished with an internal sync tip clamp. operating from single supplies ranging from +2.5v to +3.6v and sinking an ultra-low 2ma quiescent current, the isl59111 is ideally suited for low power, battery-operated applications. it also features inputs capable of reaching down to 0.15v below the negative rail. additionally, an enable high pin shuts the part down in under 14ns. the isl59111 is designed to meet the needs for very low power and bandwidth required in battery-operated communication, instrumentation, and modern industrial applications such as video on demand, cable set-top boxes, dvd players, and hdtv. the isl59111 is offered in a space-saving csp package guaranteed to a 0.7mm maximum height constraint and specified for operation from -40c to +85c temperature range. features ? 3rd order 8mhz reconstruction filter ? 40v/s slew rate ? low supply current = 2ma ? power-down current less than 3a ? supplies from 2.5v to 3.6v ? rail-to-rail output ? input to 0.15v below v s - ? input sync tip clamp ? sag correction reduces ac coupling capacitor size ? pb-free plus anneal available (rohs compliant) applications ? video amplifiers ? portable and handheld products ? communications devices ? video on demand ? cable set-top boxes ? satellite set-top boxes ? dvd players ? hdtv ? personal video recorders ordering information part number (see note) part marking tape & reel package (pb-free) pkg. dwg. # isl59111iz-t7 111z 7? (3k pcs) 6 ld csp (2x3) mdp0054 note: intersil pb-free plus anneal products employ special pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish , which are rohs compliant and compatible with both snpb and pb-free soldering operations. intersil pb-free products are msl classi fied at pb-free peak reflow temperatures that meet or exceed the pb-free requirements of ipc/jedec j std-020. pinout isl59111 (6 ld csp)* top view bottom view *0.7mm maximum height guaranteed out gnd sag vdd in en 1 3 2 b a out gnd sag vdd in en 1 3 2 b a data sheet april 19, 2007 caution: these devices are sensitive to electrosta tic discharge; follow proper ic handling procedures. 1-888-intersil or 1-888-468-3774 | intersil (and design) is a registered trademark of intersil americas inc. copyright ? intersil americas inc. 2005-2007. all rights reserved. all other trademarks mentioned are the property of their respective owners.
2 fn6172.4 april 19, 2007 important note: all parameters having min/max specifications are guaranteed. typ values are for information purposes only. unles s otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: t j = t c = t a absolute m aximum ratings (t a = +25c) supply voltage from v s + to gnd . . . . . . . . . . . . . . . . . . . . . . . 3.6v input voltage . . . . . . . . . . . . . . . . . . . . . . . v s + +0.3v to gnd -0.3v continuous output current . . . . . . . . . . . . . . . . . . . . . . . . . . . 40ma power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see curves storage temperature . . . . . . . . . . . . . . . . . . . . . . . .-65c to +125c ambient operating temperature . . . . . . . . . . . . . . . .-40c to +85c operating junction temperature . . . . . . . . . . . . . . . . . . . . . . +125c pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/pb-freereflow.asp caution: stresses above those listed in ?absolute maximum ratings? may cause permanent damage to the device. this is a stress o nly rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. electrical specifications v s + = 3.3v, t a = +25c, r l = 150 to gnd, c l = 0.1f, unless otherwise specified. description parameter conditions min typ max unit input characteristics v cc supply voltage range 2.5 3.6 v i dd-on quiescent supply current v in = 500mv, en = v dd , no load 2 2.75 ma i dd-off shutdown supply current en = 0v 3 a v ols output level shift voltage v in = 0v, no load 60 130 200 mv v clamp input voltage clamp i in = -1ma -40 -15 +10 mv i clamp_chg clamp charge current v in = v clamp - 100mv -6 -3 ma i clamp_dchg clamp discharge current v in = 500mv 2.5 5 7.5 a r in input resistance 0.5v < v in < 1.0v 0.5 3 m a v voltage gain r l = 150 1.95 2.0 2.04 v/v a sag sag correction dc gain to v out sag open 2.25 v/v psrr dc power supply rejection v dd = 2.7v to 3.3v 43 63 db v oh output voltage high swing v in = 2v, r l = 150 to gnd 2.85 3.2 v i sc output short-circuit current v in = 2v, to gnd through 10 -94 -65 ma v in = 100mv, out short to v dd through 10 65 115 ma i enable enable current 3.3v, enable pin = 0v -3 0 +3 a v il disable threshold v dd = 2.7v to 3.3v 0.8 v v ih enable threshold v dd = 2.7v to 3.3v 1.6 v r out shutdown output impedance en = 0v dc 3.6 4.5 5.9 k en = 0v, f = 4.5mhz 3.4 k ac performance bw 0.1db bandwidth r l = 150 , c l = 5pf 4 mhz bw -3db bandwidth r l = 150 , c l = 5pf 8 mhz normalized stopband gain f = 27mhz -24.2 db dg differential gain ntsc and pal dc coupled 0.10 % ntsc and pal ac coupled 0.84 % dp differential phase ntsc and pal dc coupled 0.05 ntsc and pal ac coupled 0.62 d/dt group delay variation f = 100khz, 5mhz 5.4 ns snr signal to noise ratio 100% white signal 65 db isl59111
3 fn6172.4 april 19, 2007 t on enable time v in = 500mv, v out to 1% 200 ns t off disable time v in = 500mv, v out to 1% 14 ns +sr positive slew rate 10% to 90%, v in = 1v step 20 41 70 v/s -sr negative slew rate 90% to 10%, v in = 1v step -15 -30 -70 v/s t f fall time 2.5v step , 80% - 20% 25 ns t r rise time 2.5v step , 20% - 80% 22 ns electrical specifications v s + = 3.3v, t a = +25c, r l = 150 to gnd, c l = 0.1f, unless otherwise specified. (continued) description parameter conditions min typ max unit typical performance curves figure 1. gain vs frequency -0.1db figure 2. gain vs frequency -3db point figure 3. gain vs frequency -3db figure 4. gain vs frequency for various r load 100k frequency (hz) normalized gain (db) 10m 1m 0.5 0.3 0.1 -0.1 -0.3 -0.5 -0.1db bw @ 4mhz v dd =+3.3v r l =150 c l =5pf isl59111
4 fn6172.4 april 19, 2007 figure 5. gain vs frequency for various c load figure 6. maximum output magnitude vs input magnitude figure 7. phase vs frequency figure 8. psrr vs frequency figure 9. output impedance vs frequency figure 10. isolation vs frequency typical performance curves output impedance ( ) 100 1 0.01 10k frequency (hz) 100m 1m 100k 10m 10 0.1 v dd =+3.3v isl59111
5 fn6172.4 april 19, 2007 figure 11. maximum output vs load resistance figure 12. supply current vs supply voltage figure 13. large signal step response figure 14. small signal step response figure 15. enable time figure 16. disable time typical performance curves isl59111
6 fn6172.4 april 19, 2007 figure 17. harmonic distortion vs frequency fig ure 18. harmonic distortion vs output voltage figure 19. group delay vs frequency figure 20. -3db bandwidth vs input resistance figure 21. slew rate vs supply voltage typical performance curves isl59111
7 fn6172.4 april 19, 2007 application information the isl59111 is a single supply rail-to-rail output amplifier achieving a -3db bandwidth of around 8mhz and slew rate of about 40v/s while demanding only 2ma of supply current. this part is ideally suited for applications with specific micropower consumption and high bandwidth demands. as the performance characteristics above and the features described below, the isl59111 is designed to be very attractive for portable composite video applications. the isl59111 features a sync clamp, low pass function, and sag network at the output faci litating reduction of typically large ac coupling capacitors. see figure 22. internal sync clamp the typical embedded video dac operates from a ground referenced single supply. this becomes an issue because the lower level of the sync pulse output may be at a 0v reference level to some positive level. the problem is presenting a 0v input to most single supply driven amplifiers will saturate the output stage of the amplifier resulting in a clipped sync tip and degrading the video image. a larger positive reference may offset the input above its positive range. the isl59111 features an internal sync clamp and offset function to level shift the entire video signal to the best level before it reaches t he input of the amplifier stage. these features are also helpful to avoid saturation of the output stage of the amplifier by setting the signal closer to the best voltage range. the simplified block diagram of the isl59111 in figure 22 is divided into four sections. the first, section a is the sync clamp. the ac coupled video sync signal is pulled negative by a current source at the input of the comparator amplifier. when the sync tip goes below the comparator threshold the output comparator is driven negative, the pmos device turns on clamping sync tip to near ground level. the network triggers on the sync tip of video signal. the sallen key low pass filter the sallen key is a classic low pass configuration illustrated in figure 22. this provides a very stable low pass function, and in the case of the isl59111, a three-pole roll-off at around 8mhz. the three-pole function is accomplished with an rc low pass network placed in series with and before the sallen key. one pole provided by the rc network and poles two and three provided by the sallen key for a nice three- pole roll-off at around 8mhz. if more aggressive, multiple- pole roll-offs are needed, multiple isl59111 can be placed in series. there will, of course, be a loss of bandwidth as additional devices are added. ac output coupling and the sag network composite video signals carry viable information at frequencies as low as 30hz up to 5mhz. when a video system output is ac coupled it is critical that the filter represented by the output coupling capacitor and the - + + ? - + in r in c in v dd in en gnd v dd v dd en=gnd: shutdown i dd ~0 en=v dd : active i dd ~1.5ma r 1 r 2 r 3 c 1 c 3 v dc c 2 r 6 r 5 r 4 r 7 out sag c 5 c 4 r out r l sync clamp sallen key low pass filter sag network ac coupling capacitor 100nf 47f 22f 75 75 figure 22. block diagram isl59111
8 fn6172.4 april 19, 2007 surrounding resistance network provide a band pass function with a low pass band low enough to exclude very low frequencies down to dc, and with a high pass band pass sufficiently high to include frequencies at the higher end of the video spectrum. typically this is accomplished with 220f coupling capacitor, a large and somewhat costly solution providing a low frequency pole around 5hz. if the size of this capacitor is even slightly reduced we have found that the accompanying phase shift in the 50hz to 100hz frequency range results in field tilt resulting in a degraded video image. the internal sag network of the isl59111 replaces the 220f ac coupling capacitor with a network of two smaller capacitors as shown in figure 23. additionally, the network is designed to place a zero in the ~30hz range, providing a small amount of peaking to compensate the phase response associated with field tilt. dc output coupling the isl59111 internal sync cl amp makes it possible to dc couple the output to a video load, eliminating the need for any ac coupling capacitors, saving board space and additional expense for capacitors making the isl59111 is designed to be extremely attractive for portable video applications additionally, this solution completely eliminates the issue of field tilt in the lo wer frequency. the trade off is greater demand of supply current. typical load current for ac coupled is around 3ma compared to typical 6ma used when dc coupling. output drive capability the isl59111 does not have internal short circuit protection circuitry. if the output is s horted indefinitely, the power dissipation could easily overheat the die or the current could eventually compromise metal integrity. maximum reliability is maintained if the output current never exceeds 40ma. this limit is set by the design of t he internal metal interconnect. note that in transient applic ations, the part is robust. short circuit protection can be provided externally with a back match resistor in series with the output placed close as possible to the output pin. in video applications this would be a 75 resistor and will provide adequate short circuit protection to the device. care should still be taken not to stress the device with a short at the output. power dissipation with the high output drive capabi lity of the isl59111, it is possible to exceed the +125c absolute maximum junction temperature under certain load current conditions. therefore, it is im portant to calculate the maximum junction temperature for an application to determine if load conditions or package types need to be modified to assure operation of the amplifier in a safe operating area. the maximum power dissipation allowed in a package is determined according to: where: t jmax = maximum junction temperature t amax = maximum ambient temperature ja = thermal resistance of the package the maximum power dissipation actually produced by an ic is the total quiescent supply current times the total power supply voltage, plus the power in the ic due to the load, or: for sourcing: for sinking: r 6 r 5 r 4 r 7 c 5 c 4 r out r l sag network ac coupling capacitor figure 23. sag network and ac coupling capacitors - + television or vcr r out enable figure 24. dc couple pd max t jmax t amax ? ja -------------------------------------------- - = pd max v s i smax v s v out ? () + v out r l --------------- - = pd max v s i smax v out v s ? () + i load = isl59111
9 fn6172.4 april 19, 2007 where: v s = supply voltage i smax = maximum quiescent supply current v out = maximum output voltage of the application r load = load resistance tied to ground i load = load current by setting the two p dmax equations equal to each other, we can solve the output current and r load to avoid the device overheat. power supply bypassing printed circuit board layout as with any modern operational amplifier, a good printed circuit board layout is necessary for optimum performance. lead lengths should be as short as possible. the power supply pin must be well bypassed to reduce the risk of oscillation. for normal single supply operation, a single 4.7f tantalum capacitor in parallel with a 0.1f ceramic capacitor from v s + to gnd will suffice. printed circuit board layout for good ac performance, parasitic capacitance should be kept to minimum. use of wire wound resistors should be avoided because of their additional series inductance. use of sockets should also be avoided if possible. sockets add parasitic inductance and capacitance that can result in compromised performance. isl59111
10 all intersil u.s. products are manufactured, asse mbled and tested utilizing iso9000 quality systems. intersil corporation?s quality certifications ca n be viewed at www.intersil.com/design/quality intersil products are sold by description only. intersil corpor ation reserves the right to make changes in circuit design, soft ware and/or specifications at any time without notice. accordingly, the reader is cautioned to verify that data sheets are current before placing orders. information furnishe d by intersil is believed to be accurate and reliable. however, no responsibility is assumed by intersil or its subsidiaries for its use; nor for any infringements of paten ts or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of intersil or its subsidiari es. for information regarding intersil corporation and its products, see www.intersil.com fn6172.4 april 19, 2007 isl59111 3x2 chip scale package (csp) pin 1 id a e1 bottom view a 12 b 3 b d1 side view a1 a2 top view d e sd se e pin a1 indicator mdp0054 3x2 chip scale package symbol millimeters min nominal max a 0.54 0.65 0.70 a 1 0.27 0.29 0.31 a 2 0.36 ref b 0.34 0.37 0.40 d 0.94 0.99 1.04 d 1 0.50 basic e 1.44 1.49 1.54 e 1 1.00 basic e 0.50 basic sd 0.25 basic se 0.00 basic rev. 1 2/07 note: 1. all dimensions are in millimeters.
isl59111 printer friendly version 8mhz rail-to-rail composite video driver datasheets, related docs & simulations description key features parametric data application diagrams related devices ordering information part no. design-in status temp. package msl price us $ ISL59111IIZ active ind 6 ld csp 1 ISL59111IIZ-t7 active ind 6 ld csp t+r 1 1.77 the price listed is the manufacturer's suggested retail price for quantities between 100 and 999 units. however, prices in today's market are fluid and may change without notice. msl = moisture sensitivity level - per ipc/jedec j-std-020 smd = standard microcircuit drawing description the isl59111 is a single rail-to-rail 3-pole output reconstruction filter with a -3db roll-off frequency of 8mhz and a slew rate of 40v/ s, with input signal dc restoration accomplished with an internal sync tip clamp. operating from single supplies ranging from +2.5v to +3.6v and sinking an ultra- low 2ma quiescent current, the isl59111 is ideally suited for low power, battery-operated applications. it also features inputs capable of reaching down to 0.15v below the negative rail. additionally, an enable high pin shuts the part down in under 14ns. the isl59111 is designed to meet the needs for very low power and bandwidth required in battery- operated communication, instrumentation, and modern industrial applications such as video on demand, cable set-top boxes, dvd players, and hdtv. the isl59111 is offered in a space-saving csp package guaranteed to a 0.7mm maximum height constraint and specified for operation from -40c to +85c temperature range. key f eatures 3rd order 8mhz reconstruction filter 40v/ s slew rate low supply current = 2ma power-down current less than 3 a supplies from 2.5v to 3.6v rail-to-rail output input to 0.15v below v s - input sync tip clamp sag correction reduces ac coupling capacitor size pb-free plus anneal available (rohs compliant) related documentation datasheet(s): 8mhz rail-to-rail composite video driver technical homepage: amplifiers/buffers video ics parametric data
input channels 1 output channels 1 -3db filter cut-off (mhz) 8 v s range (v) +2.5 to +3.6 i s (ma per amp) 2 rail-to-rail output y gain a v (min) 2 diff gain (%) .1 diff phase () .05 enable y application block diagrams iptv set-top box applications video amplifiers portable and handheld products communications devices video on demand cable set-top boxes satellite set-top boxes dvd players hdtv personal video recorders related devices parametric table ca3140 4.5mhz, bimos operational amplifier with mosfet input/bipolar output ca3140a 4.5mhz, bimos operational amplifier with mosfet input/bipolar output ca3240 dual, 4.5mhz, bimos operational amplifier with mosfet input/bipolar output ca3240a dual, 4.5mhz, bimos operational amplifier with mosfet input/bipolar output ca3260 4mhz, bimos operational amplifier with mosfet input/cmos output ca3260a 4mhz, bimos operational amplifier with mosfet input/cmos output ca3420 0.5mhz, low supply voltage, low input current bimos operational amplifiers ca5260 dual 3mhz, bimos microprocessor operational amplifiers with mosfet input/cmos output ca5260a dual 3mhz, bimos microprocessor operational amplifiers with mosfet input/cmos output ca5420a 0.5mhz, low supply voltage, low input current bimos operational amplifiers el5120 12mhz rail-to-rail input-output op amps el5144 100mhz single-supply rail-to-rail amplifiers el5146 100mhz single-supply rail-to-rail amplifiers el5210 30mhz rail-to-rail input-output op amps el5220 12mhz rail-to-rail input-output op amps el5244 100mhz single-supply rail-to-rail amplifiers el5246 100mhz single-supply rail-to-rail amplifiers el5410 30mhz rail-to-rail input-output op amps el5420 12mhz rail-to-rail input-output op amps el5444 100mhz single-supply rail-to-rail amplifiers el8100 200mhz rail-to-rail amplifiers el8101 200mhz rail-to-rail amplifiers el8102 500mhz rail-to-rail amplifiers el8103 500mhz rail-to-rail amplifiers el8176 micropower single supply rail-to-rail input-output precision op amp el8178 micropower single supply rail-to-rail input-output (rrio) precision op amp
el8188 micropower single supply rail-to-rail input-output precision op amp el8200 200mhz rail-to-rail amplifiers el8201 200mhz rail-to-rail amplifiers el8202 500mhz rail-to-rail amplifiers el8203 500mhz rail-to-rail amplifiers el8300 200mhz rail-to-rail amplifier el8302 500mhz rail-to-rail amplifier el8401 200mhz rail-to-rail amplifiers el8403 500mhz rail-to-rail amplifiers ha-2640 4mhz, high supply voltage operational amplifiers ha-2645 4mhz, high supply voltage operational amplifiers ha-4741 quad, 3.5mhz, operational amplifier ha-5102 dual and quad, 8mhz and 60mhz, low noise operational amplifiers ha-5104 dual and quad, 8mhz and 60mhz, low noise operational amplifiers ha-5127 8.5mhz, ultra-low noise precision operational amplifier ha-5127a 8.5mhz, ultra-low noise precision operational amplifier icl7611 1.4mhz, low power cmos operational amplifiers icl7612 1.4mhz, low power cmos operational amplifiers icl7621 dual/quad, low power cmos operational amplifiers icl7650s 2mhz, super chopper-stabilized operational amplifier isl28156 39 a micropower single and dual precision rail-to-rail input-output (rrio) low input bias current op amps isl28158 34 a micro-power single precision rail-to-rail input-output (rrio) low input bias current op amps isl28166 39 a micropower single and dual rail-to-rail input-output low input bias current (rrio) op amps isl28168 34 a micro-power single rail-to-rail input-output (rrio) low input bias current op amps isl28194 ultra-small, 330na and 1 a single supply, rail-to-rail input/output (rrio) op amps isl28195 ultra-small, 330na and 1 a single supply, rail-to-rail input/output (rrio) op amps isl28276 dual micropower single supply rail-to-rail input and output (rrio) precision op amp isl28278 dual micropower single supply rail-to-rail input and output (rrio) op-amp isl28286 dual micropower single supply rail-to-rail input and output (rrio) precision op amp isl28288 dual micropower single supply rail-to-rail input and output (rrio) op-amp isl28488 quad micropower single supply rail-to-rail input and output (rrio) op-amp isl59110 8mhz rail-to-rail composite video driver isl59112 40mhz rail-to-rail video buffer isl59114 yc (s-video) to composite video driver with lpf isl59115 triple channel video driver with lpf isl59116 yc to composite video driver with lpf isl59117 triple channel video driver with lpf isl59118 dual video driver with low pass filter isl59833 200mhz single supply video driver with charge pump isl59837 200mhz single supply video driver with charge pump and power down about us | careers | contact us | investors | legal | privacy | site map | subscribe | intranet ?2007. all rights reserved.

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