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integrated triple video filter with selectable cutoff frequencies for rgb, hd/sd ada4412-3 rev. 0 information furnished by analog devices is believed to be accurate and reliable. however, no responsibility is assumed by analog devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. specifications subject to change without notice. no license is granted by implication or otherwise under any patent or patent rights of analog devices. trademarks and registered trademarks are the property of their respective owners. one technology way, p.o. box 9106, norwood, ma 02062-9106, u.s.a. tel: 781.329.4700 www.analog.com fax: 781.461.3113 ? 2005 analog devices, inc. all rights reserved. features sixth-order adjustable video filters 36 mhz, 18 mhz, and 9 mhz many video standards supported: rgb, ypbpr, yuv, sd, y/c ideal for 720p and 1080i resolutions ?1 db bandwidth of 31.5 mhz for hd low quiescent power only 265 mw for 3 channels on 5 v supply disable feature cuts supply current to 10 a dc output offset adjust: 0.5 v, input referred fixed throughput gain of 2 excellent video specifications wide supply range: +4.5 v to 5 v rail-to-rail output output can swing 4.5 v p-p on single 5 v supply small packaging: 20-lead qsop applications set-top boxes dvd players and recorders personal video recorders hdtvs projectors functional block diagram 05528-001 cutoff select dc offset level2 level1 2 y/g out pb/b ou t pr/r out disable y/g in pb/b in pr/r in 36mhz, 18mhz, 9mhz 36mhz, 18mhz, 9mhz 36mhz, 18mhz, 9mhz 2 2 2 1 1 1 ada4412-3 figure 1. general description the ada4412-3 is a comprehensive filtering solution designed to give designers the flexibility to easily filter and drive various video signals, including high definition video. cutoff frequen- cies of the sixth-order video filters range from 9 mhz to 36 mhz and can be selected by two logic pins to obtain four filter combinations that are tuned for rgb, high definition, and standard definition video signals. the ada4412-3 has a rail-to- rail output that can swing 4.5 v p-p on a single 5 v supply. the ada4412-3 includes an output offset voltage adjustment feature. output voltage offset is continuously adjustable over an input-referred range of 500 mv by applying a differential voltage to an independent offset control input. the ada4412-3 can operate on a single +5 v supply as well as on 5 v supplies. single-supply operation is ideal in applications where power consumption is critical. the disable feature allows for further power conservation by reducing the supply current to typically 10 a when a particular device is not in use. dual-supply operation is best for applications where the negative-going video signal excursions must swing at or below ground while maintaining excellent video performance. the output buffers have the ability to drive two 75 doubly terminated cables that are either dc-coupled or ac-coupled. the ada4412-3 is available in a 20-lead qsop and is rated for operation over the extended industrial temperature range of ?40c to +85c.
ada4412-3 rev. 0 | page 2 of 16 table of contents features .............................................................................................. 1 applications ....................................................................................... 1 functional block diagram .............................................................. 1 general description ......................................................................... 1 revision history ............................................................................... 2 specifications ..................................................................................... 3 absolute maximum ratings ............................................................ 5 thermal resistance ...................................................................... 5 esd caution .................................................................................. 5 pin configuration and function descriptions ............................ 6 typical performance characteristics ............................................. 7 theory of operation ........................................................................ 9 applications ..................................................................................... 10 overview ..................................................................................... 10 disable ......................................................................................... 10 cutoff frequency selection ....................................................... 10 output dc offset control ........................................................ 10 input and output coupling ...................................................... 11 printed circuit board layout ................................................... 11 video encoder reconstruction filter ...................................... 11 outline dimensions ....................................................................... 13 ordering guide .......................................................................... 13 revision history 7/05revision 0: initial version
ada4412-3 rev. 0 | page 3 of 16 specifications v s = 5 v, @ t a = 25c, v o = 1.4 v p-p, r l = 150 , unless otherwise noted. table 1. parameter test conditions/comments min typ max unit overall performance offset error input referred, all channels 9 23 mv offset adjust range input referred 500 mv input voltage range, all inputs v s? ? 0.1 v s+ ? 2.0 v output voltage swing, all outputs positive swing v s+ ? 0.30 v s+ ? 0.20 v negative swing v s? + 0.10 v s? + 0.15 v linear output current per channel 30 ma integrated voltage noise, referred to input all channels 0.50 mv rms filter input bias current all channels 6.6 a total harmonic distortion at 1 mhz f c = 36 mhz, f c = 18 mhz/f c = 9 mhz 0.01/0.04 % gain error magnitude 0.09 0.49 db filter dynamic performance ?1 db bandwidth cutoff frequency select = 36 mhz 26.5 31.5 mhz cutoff frequency select = 18 mhz 13.5 15.5 mhz cutoff frequency select = 9 mhz 6.5 8.0 mhz ?3 db bandwidth cutoff frequency select = 36 mhz 34 37 mhz cutoff frequency select = 18 mhz 16 19 mhz cutoff frequency select = 9 mhz 8 9 mhz out-of-band rejection f = 75 mhz ?31 ?43 db crosstalk f = 5 mhz, f c = 36 mhz ?62 db propagation delay f = 5 mhz, f c = 36 mhz 19 ns group delay variation cutoff frequency select = 36 mhz 7 ns cutoff frequency select = 18 mhz 14 ns cutoff frequency select = 9 mhz 27 ns differential gain ntsc, f c = 9 mhz 0.16 % differential phase ntsc, f c = 9 mhz 0.05 degrees cutoff control input performance input logic 0 voltage 0.8 v input logic 1 voltage 2.0 v input bias current 10 15 a disable performance disable assert voltage v s+ ? 0.5 v disable assert time 100 ns disable deassert time 130 ns disable input bias current 12 a input-to-output isolationdisabled f = 10 mhz 90 db power supply operating range 4.5 12 v quiescent current 53 56 ma quiescent currentdisabled 10 150 a psrr, positive supply all channels 64 70 db psrr, negative supply all channels 58 60 db
ada4412-3 rev. 0 | page 4 of 16 v s = 5 v, @ t a = 25c, v o = 1.4 v p-p, r l = 150 , unless otherwise noted. table 2. parameter test conditions/comments min typ max unit overall performance offset error input referred, all channels 10 25 mv offset adjust range input referred 500 mv input voltage range, all inputs v s? ? 0.1 v s+ ? 2.0 v output voltage swing, all outputs positive swing v s+ ? 0.33 v s+ ? 0.24 v negative swing v s? + 0.24 v s? + 0.33 v linear output current per channel 30 ma integrated voltage noise, referred to input all channels 0.50 mv rms filter input bias current all channels 6.3 a total harmonic distortion at 1 mhz f c = 36 mhz, f c = 18 mhz/f c = 9 mhz 0.01/0.03 % gain error magnitude 0.04 0.50 db filter dynamic performance ?1 db bandwidth cutoff frequency select = 36 mhz 30.0 mhz cutoff frequency select = 18 mhz 15.5 mhz cutoff frequency select = 9 mhz 8.0 mhz ?3 db bandwidth cutoff frequency select = 36 mhz 34 36 mhz cutoff frequency select = 18 mhz 17 19 mhz cutoff frequency select = 9 mhz 8 9 mhz out-of-band rejection f = 75 mhz ?31 ?42 db crosstalk f = 5 mhz, f c = 36 mhz ?62 db propagation delay f = 5 mhz, f c = 36 mhz 19 ns group delay variation cutoff frequency select = 36 mhz 7 ns cutoff frequency select = 18 mhz 12 ns cutoff frequency select = 9 mhz 24 ns differential gain ntsc, f c = 9 mhz 0.04 % differential phase ntsc, f c = 9 mhz 0.16 degrees cutoff control input performance input logic 0 voltage 0.8 v input logic 1 voltage 2.0 v input bias current 10 15 a disable performance disable assert voltage v s+ ? 0.5 v disable assert time 75 ns disable deassert time 125 ns disable input bias current 35 a input-to-output isolationdisabled f = 10 mhz 90 db power supply operating range 4.5 12 v quiescent current 57 60 ma quiescent currentdisabled 10 150 a psrr, positive supply all channels 66 74 db psrr, negative supply all channels 59 62 db
ada4412-3 rev. 0 | page 5 of 16 absolute maximum ratings table 3. parameter rating supply voltage 12 v power dissipation see figure 2 storage temperature C65c to +125c operating temperature range C40c to +85c lead temperature range (soldering 10 sec) 300c junction temperature 150c stresses above those listed under absolute maximum ratings may cause permanent damage to the device. this is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. thermal resistance ja is specified for the worst-case conditions, that is, ja is specified for device soldered in circuit board for surface-mount packages. table 4. thermal resistance package type ja unit 20-lead qsop 83 c/w maximum power dissipation the maximum safe power dissipation in the ada4412-3 package is limited by the associated rise in junction temperature (t j ) on the die. at approximately 150c, which is the glass transition temperature, the plastic changes its properties. even temporarily exceeding this temperature limit may change the stresses that the package exerts on the die, permanently shifting the parametric performance of the ada4412-3. exceeding a junction temperature of 150c for an extended period can result in changes in the silicon devices potentially causing failure. the power dissipated in the package (p d ) is the sum of the quiescent power dissipation and the power dissipated in the package due to the load drive for all outputs. the quiescent power is the voltage between the supply pins (v s ) times the quiescent current (i s ). the power dissipated due to load drive depends on the particular application. for each output, the power due to load drive is calculated by multiplying the load current by the associated voltage drop across the device. the power dissipated due to all of the loads is equal to the sum of the power dissipations due to each individual load. rms voltages and currents must be used in these calculations. airflow increases heat dissipation, effectively reducing ja . in addition, more metal directly in contact with the package leads from metal traces, through-holes, ground, and power planes reduces the ja . figure 2 shows the maximum safe power dissipation in the package vs. the ambient temperature for the 20-lead qsop (83c/w) on a jedec standard 4-layer board. ja values are approximations. 05528-002 ambient temperature ( c) watts ?40 ?20 0 20 40 60 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 80 figure 2. maximum power dissipation vs. temperature for a 4-layer board esd caution esd (electrostatic discharge) sensitive device. electros tatic charges as high as 4000 v readily accumulate on the human body and test equipment and can discharge wi thout detection. although this product features proprietary esd protection circuitry, permanent dama ge may occur on devices subjected to high energy electrostatic discharges. therefore, proper esd pr ecautions are recommended to avoid performance degradation or loss of functionality.
ada4412-3 rev. 0 | page 6 of 16 pin configuration and fu nction descriptions 05528-003 1 2 3 4 5 6 7 8 9 10 16 17 18 19 20 15 14 13 12 11 disable y/g gnd pr/r gnd pb/b level1 vcc y/g_out vee pr/r_out vee pb/b_out f_sel_ a f_sel_b gnd vcc nc dgnd nc = no connect level2 ada4412-3 top view (not to scale) figure 3. 20-lead qs op pin configuration table 5. 20-lead qsop pin function descriptions pin no. name description 1 level1 dc level adjust pin 1 2 disable disable/power down 3 y/g y/g video input 4 gnd signal ground reference 5 pb/b pb/b video input 6 gnd signal ground reference 7 pr/r pr/r video input 8 f_sel_a filter cutoff select input a 9 f_sel_b filter cutoff select input b 10 gnd signal ground reference 11 dgnd digital ground reference 12 nc no internal connection 13 vcc positive power supply 14 pr/r_out pr/r video output 15 vee negative power supply 16 pb/b_out pb/b video output 17 vee negative power supply 18 y/g_out y/g video output 19 vcc positive power supply 20 level2 dc level adjust pin 2
ada4412-3 rev. 0 | page 7 of 16 typical performance characteristics unless otherwise noted, r l = 150 , v o = 1.4 v p-p, v s = 5 v, t a = 25c. 05528-004 frequency (mhz) gain (db) 1 10 100 ?48 ?45 ?42 ?39 ?36 ?33 ?30 ?27 ?24 ?21 ?18 ?15 ?12 ?9 ?6 ?3 0 3 6 9 f c = 9mhz f c = 18mhz f c = 36mhz black line: v s = +5v gray line: v s = 5v figure 4. frequency response vs. power supply and cutoff frequency 05528-005 frequency (mhz) gain (db) 1 10 100 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 black line: v s = +5v gray line: v s = 5v f c = 9mhz f c = 18mhz f c = 36mhz figure 5. frequency response flatness vs. cutoff frequency 05528-006 frequency (mhz) gain (db) 11 01 0 0 ?48 ?45 ?42 ?39 ?36 ?33 ?30 ?27 ?24 ?21 ?18 ?15 ?12 ?9 ?6 ?3 0 3 6 9 f c = 9mhz f c = 18mhz f c = 36mhz black line: v out = 100mv p-p gray line: v out = 2v p-p figure 6. frequency response vs. output amplitude and cutoff frequency 05528-007 frequency (mhz) gain (db) 11 01 0 0 ?48 ?45 ?42 ?39 ?36 ?33 ?30 ?27 ?24 ?21 ?18 ?15 ?12 ?9 ?6 ?3 0 3 6 9 f c = 36mhz f c = 9mhz f c = 18mhz ?40 c +25 c +85 c figure 7. frequency response vs. temperature and cutoff frequency 05527-008 frequency (mhz) group delay (ns) 11 0 10 100 90 80 70 60 50 40 30 20 1 0 0 f c = 9mhz f c = 18mhz f c = 36mhz black line: v s = +5v gray line: v s = 5v figure 8. group delay vs. frequency, power supply, and cutoff frequency 05528-009 frequency (mhz) crosstalk referred to input (db) 0.1 1 10 100 ?100 ?90 ?80 ?70 ?60 ?50 ? 40 f c = 9mhz f c = 18mhz f c = 36mhz r source = 300 y and pr source channels pb receptor channel figure 9. channel-to-channel crosstal k vs. frequency and cutoff frequency
ada4412-3 rev. 0 | page 8 of 16 05528-011 frequency (mhz) psrr (db) 0.1 1 10 100 ?75 ?65 ?55 ?45 ?35 ?25 ?15 ?5 5 f c = 9mhz f c = 18mhz f c = 36mhz figure 10. positive supply psrr vs . frequency and cutoff frequency 05528-010 output voltage (v) error (%) 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5 ?2.5 ?2.0 ?1.5 ?1.0 ?0.5 0 0.5 1.0 1.5 2.0 2.5 50ns/div 2 input output 0.5% (70ns) error 1% (58ns) figure 11. settling time 05528-012 output voltage (v) 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5 100ns/div f c = 9mhz f c = 18mhz f c = 36mhz figure 12. transient resp onse vs. cutoff frequency 05528-013 frequency (mhz) psrr (db) 0.1 1 10 100 ?75 5 ?5 ?15 ?25 ?35 ?45 ?55 ?65 f c = 9mhz f c = 18mhz f c = 36mhz figure 13. negative supply psrr vs . frequency and cutoff frequency 05528-014 output voltage (v) ?1 6 5 4 3 2 1 0 200ns/div 2 input f c = 36mhz f c = 18mhz f c = 9mhz figure 14. overdrive reco very vs. cutoff frequency 05528-051 minimum-loss matching network loss calibrated out 50 118 r l = 150 50 86.6 50 network analyzer tx network analyzer rx dut figure 15. basic test circuit for swept frequency measurements
ada4412-3 rev. 0 | page 9 of 16 theory of operation the ada4412-3 is an integrated video filtering and driving solution that offers variable bandwidth to meet the needs of a number of different video resolutions. there are three filters targeted for use with component video signals. the filters have selectable bandwidths that correspond to the popular component video standards. each filter has a sixth-order butterworth response that includes group delay optimization. the group delay variation from 1 mhz to 36 mhz in the 36 mhz section is 7 ns, which produces a fast settling pulse response. the ada4412-3 is designed to op erate in many video environ- ments. the supply range is 5 v to 12 v, single supply or dual supply, and requires a relatively low nominal quiescent current of 15 ma per channel. in single-supply applications, the psrr is greater than 60 db, providing excellent rejection in systems with supplies that are noisy or under-regulated. in applications where power consumption is critical, the part can be powered down to draw typically 10 a by pulling the disable pin to the most positive rail. the ada4412-3 is also well-suited for high encoding frequency applications because it maintains a stop-band attenuation of over 40 db to 400 mhz. the ada4412-3 is intended to take dc-coupled inputs from an encoder or other ground referenced video signals. the ada4412-3 input is high impedance. no minimum or maximum input termination is required, though input terminations above 1 k can degrade crosstalk performance at high frequencies. no clamping is provided internally. for applications where dc restoration is required, dual supplies work best. using a termination resistance of less than a few hundred ohms to ground on the inputs and suitably adjusting the level-shifting circuitry provides precise placement of the output voltage. for single-supply applications (v s? = gnd), the input voltage range extends from 100 mv below ground to within 2.0 v of the most positive supply. each filter input includes level-shifting circuitry. the level-shifting circuitry adds a dc component to ground-referenced input signals so that they can be reproduced accurately without the output buffers hitting the negative rail. because the filters have negative rail input and rail-to-rail output, dc level shifting is generally not necessary, unless accuracy greater than that of the saturated output of the driver is required at the most negative edge. this varies with load but is typically 100 mv in a dc-coupled, single-supply application. if ac coupling is used, the saturated output level is higher because the drivers have to sink more current on the low side. if dual supplies are used (v s? < gnd), no level shifting is required. in dual-supply applications, the level-shifting circuitry can be used to take a ground referenced signal and put the blanking level at ground while the sync level is below ground. the output drivers on the ada4412-3 have rail-to-rail output capabilities with 6 db gain. each output is capable of driving two ac- or dc-coupled, 75 source-terminated loads. if a large dc output level is required while driving two loads, ac coupling should be used to limit the power dissipation.
ada4412-3 rev. 0 | page 10 of 16 applications overview with its high impedance inputs and high output drive, the ada4412-3 is ideally suited to video reconstruction and antialias filtering applications. the high impedance inputs give designers flexibility with regard to how the input signals are terminated. devices with dac current source outputs that feed the ada4412-3 can be loaded in whatever resistance provides the best performance, and devices with voltage outputs can be optimally terminated as well. the ada4412-3 outputs can each drive up to two source-terminated 75 loads and can therefore directly drive the outputs from set-top boxes, dvd players, and the like without the need for a separate output buffer. binary control inputs are provided to select the filter cutoff frequency. these inputs are compatible with 3 v and 5 v ttl and cmos logic levels referenced to gnd. the disable feature is asserted by pulling the disable pin to the positive supply. the level1 and level2 inputs comprise a differential input that controls the dc level at the output pins. disable the ada4412-3 includes a disable feature that can be used to save power when a particular device is not in use. as indicated in the overview section, the disable feature is asserted by pulling the disable pin to the positive supply. the disable pin also functions as a reference level for the logic inputs and therefore must be connected to ground when the device is not disabled. table 6 summarizes the disable feature operation. table 6. disable function disable pin connection status v s+ disabled gnd enabled cutoff frequency selection four combinations of cutoff frequencies are provided for the video signals. the cutoff frequencies have been selected to correspond with the most commonly deployed component video scanning systems. selection between the cutoff frequency combinations is controlled by the logic signals applied to the f_sel_a and f_sel_b inputs. table 7 summarizes cutoff frequency selection. table 7. filter cutoff frequency selection f_sel_a f_sel_b y/g cutoff pb/b cutoff pr/r cutoff 0 0 36 mhz 36 mhz 36 mhz 0 1 36 mhz 18 mhz 18 mhz 1 0 18 mhz 18 mhz 18 mhz 1 1 9 mhz 9 mhz 9 mhz output dc offset control the level1 and level2 inputs work as a differential, input- referred output offset control. in other words, the output offset voltage of a given channel is equal to the difference in voltage between the level1 and level2 inputs multiplied by the overall filter gain. this relationship is expressed in equation 1. ( ) ) (2)( level2 level1 outv os ? = (1) level1 and level2 are the voltages applied to the respective inputs, and the factor of 2 reflects the gain of 2 in the output stage. for example, setting level1 to 300 mv and level2 to 0 v shifts the offset voltages at the ada4412-3 outputs to 600 mv. this particular setting can be used in most single-supply applications to keep the output swings safely above the negative supply rail. the maximum differential voltage that can be applied across the level1 and level2 inputs is 500 mv. from a single-ended standpoint, the level1 and level2 inputs have the same range as the filter inputs. see the specifications for the limits. the level1 and level2 inputs must each be bypassed to gnd with a 0.1 f ceramic capacitor. in single-supply applications, a positive output offset must be applied to keep the negative-most excursions of the output signals above the specified minimum output swing limit. figure 16 and figure 17 illustrate several ways to use the level1 and level2 inputs. figure 16 shows examples of how to generate fully adjustable level1 and level2 voltages from 5 v and single +5 v supplies. these circuits show a general case, but a more practical approach is to fix one voltage and vary the other. figure 17 illustrates an effective way to produce a 600 mv output offset voltage in a single-supply application. although the level2 input could simply be connected to gnd, figure 17 includes bypassed resistive voltage dividers for each input so that the input levels can be changed, if necessary. additionally, many in-circuit testers require that i/o signals not be tied directly to the supplies or gnd. dnp indicates do not populate.
ada4412-3 rev. 0 | page 11 of 16 05528-018 dual supply 0.1 f level1 9.53k 1k 9.53k +5v ?5v 0.1 f level2 9.53k 1k 9.53k +5v ?5v single supply 0.1 f level1 1k 9.09k +5v 0.1 f level2 1k 9.09k +5v figure 16. generating fully adjustable output offsets 05528-019 0.1 f level1 634 10k +5v dnp level2 0 dnp +5v figure 17. flexible circuits to set the level1 and level2 inputs to obtain a 600 mv output offset on a single supply input and output coupling inputs to the ada4412-3 are normally dc-coupled. ac coupling the inputs is not recommended; however, if ac coupling is necessary, suitable circuitry must be provided following the ac coupling element to provide proper dc level and bias currents at the ada4412-3 input stages. the ada4412-3 outputs can be either ac- or dc-coupled. when driving single ac-coupled loads in standard 75 video distribution systems, 220 f coupling capacitors are recommended for use on all but the chrominance signal output. since the chrominance signal is a narrow-band modulated carrier, it has no low frequency content and can therefore be coupled with a 0.1 f capacitor. there are two ac coupling options when driving two loads from one output. one simply uses the same value capacitor on the second load, while the other is to use a common coupling capacitor that is at least twice the value used for the single load (see figure 18 and figure 19 ). when driving two parallel 150 loads (75 effective load), the 3 db bandwidth of the filters typically varies from that of the filters with a single 150 load. for the 9 mhz and 18 mhz filters, the typical variation is within 1.0%; for the 36 mhz filters, the typical variation is within 2.5%. 05528-020 75 a da4412-3 75 220 f 220 f 75 75 75 cable 75 cable figure 18. driving two ac-coupled loads with two coupling capacitors 05528-021 75 75 75 75 470 f 75 cable 75 cable ada4412-3 figure 19. driving two ac-coupled lo ads with one common coupling capacitor printed circuit board layout as with all high speed applications, attention to printed circuit board layout is of paramount importance. standard high speed layout practices should be adhered to when designing with the ada4412-3. a solid ground plane is recommended, and surface-mount, ceramic power supply decoupling capacitors should be placed as close as possible to the supply pins. all of the ada4412-3 gnd pins should be connected to the ground plane with traces that are as short as possible. controlled impedance traces of the shortest length possible should be used to connect to the signal i/o pins and should not pass over any voids in the ground plane. a 75 impedance level is typically used in video applications. all signal outputs of the ada4412-3 should include series termination resistors when driving transmission lines. when the ada4412-3 receives its inputs from a device with current outputs, the required load resistor value for the output current is often different from the characteristic impedance of the signal traces. in this case, if the interconnec- tions are sufficiently short (<< 0.1 wavelength), the trace does not have to be terminated in its characteristic impedance. traces of 75 can be used in this instance, provided their lengths are an inch or two at the most. this is easily achieved because the ada4412-3 and the device feeding it are usually adjacent to each other, and connections can be made that are less than one inch in length. video encoder reconstruction filter the ada4412-3 is easily applied as a reconstruction filter at the dac outputs of a video encoder. figure 20 illustrates how to use the ada4412-3 in this type of application with an adv7322 video encoder in a single-supply application with ac-coupled outputs.
ada4412-3 rev. 0 | page 12 of 16 y/g 3 pb/b 5 pr/r 7 5v (analog) level1 level2 vcc 13 1 20 disable 2 f_sel_a 8 f_sel_b 9 cutoff frequency select input gnd 4, 6, 10 vee 15, 17 18 y/g_out 16 pb/b_out 14 pr/r_out 0.1 f 19 vcc ada4412-3 dgnd 11 adv7322 video encoder video dac outputs r l r l r l 0.1 f 0.1 f 0.1 f 10k dnp 0 634 75 220f 75 220f 75 220f 05528-024 figure 20. the ada4412-3 applied as a single-supply reconstruction filter following the adv7322
ada4412-3 rev. 0 | page 13 of 16 outline dimensions 20 11 10 1 pin 1 8 0 0.236 bsc 0.154 bsc 0.010 0.004 0.012 0.008 0.025 bsc coplanarity 0.004 0.065 0.049 0.069 0.053 seating plane 0.010 0.006 0.050 0.016 0.341 bsc compliant to jedec standards mo-137-ad figure 21. 20-lead shrink small outline package [qsop] (rq-20) dimensions shown in inches ordering guide model temperature range package description order quantity package option ada4412-3arqz 1 C40c to +85c 20-lead qsop 1 rq-20 ada4412-3arqz-r7 1 C40c to +85c 20-lead qsop 1,000 rq-20 ADA4412-3ARQZ-RL 1 C40c to +85c 20-lead qsop 2,500 rq-20 1 z = pb-free part.
ada4412-3 rev. 0 | page 14 of 16 notes
ada4412-3 rev. 0 | page 15 of 16 notes
ada4412-3 rev. 0 | page 16 of 16 notes ? 2005 analog devices, inc. all rights reserved. trademarks and registered trademarks are the property of their respective owners. d05528C0C7/05(0)

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