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1 ? fn7163.1 caution: these devices are sensitive to electrostatic discharge; follow proper ic handling procedures. 1-888-intersil or 321-724-7143 | intersil (and design) is a registered trademark of intersil americas inc. copyright ? intersil americas inc. 2003. all rights reserved. elantec is a registered trademark of elantec semiconductor, inc. all other trademarks mentioned are the property of their respective owners. EL4332 triple 2:1 300mhz mux-amp a v = 2 the EL4332 is a triple very high speed 2:1 multiplexer-amplifier. it is intended primarily for component video multiplexing and is especially suited for pixel switching. the amplifiers have their gain set to 2 internally, which reduces the need for many external components. the gain-of-2 facilitates driving back terminated cables. all three amplifiers are switched simultaneously from their a to b inputs by the ttl/cmos compatible, common a/b control pin. a -3db bandwidth of 300mhz together with 3ns multiplexing time enable the full performance of the fastest component video systems to be realized. the EL4332 runs from standard 5v supplies, and is available in the narrow 16-pin small outline package. pinout features 3ns a-b switching 300mhz bandwidth fixed gain of 2, for cable driving > 650v/s slew rate ttl/cmos compatible switch applications rgb multiplexing picture-in-picture cable driving hdtv processing switched gain amplifiers adc input multiplexer demo board a demo pcb is available for this product. request ?EL4332/1 demo board.? EL4332 [16-pin so (0.150?)] top view ordering information part number package tape & reel pkg. dwg. # EL4332cs 16-pin so (0.150?) - mdp0027 EL4332cs-t7 16-pin so (0.150?) 7? mdp0027 EL4332cs-t13 16-pin so (0.150?) 13? mdp0027 data sheet may 9, 2003
2 notes: 1. each channel?s a-input to its b-input. 2. there is no short circui t protection on any output. absolute maximum ratings (t a = 25c) v cc to v ee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14v v cc to any gnd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12v v ee to any gnd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12v continuous output current . . . . . . . . . . . . . . . . . . . . . . . . . . . 45ma any input . . . . . . . . . . . . . . . . . . . . . . . . . . v ee -0.3v to v cc +0.3v input current, any input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5ma power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see curves ambient operating temperature . . . . . . . . . . . . . . . . . -40c to 85c junction temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150c storage temperature . . . . . . . . . . . . . . . . . . . . . . . .-60c to +150c caution: stresses above those listed in ?a bsolute 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. important note: all parameters having min/max specifications are guaranteed. typical values are for information purposes only. u nless otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: t j = t c = t a dc electrical specifications v cc = +5v, v ee = -5v, temperature = 25c, r l = parameter description min typ max units v os input referred offset voltage 8 20 mv dv os input referred offset voltage delta (note 1) 2 8 mv r in input resistance 30 k ? i b input bias current -7 -30 a di b input bias current delta (note 1) 0.5 4.0 a a v gain 1.94 2.00 2.06 v/v da v gain delta (note 1) 0.5 2.5 % c in input capacitance 3.3 pf psrr power supply rejection ratio 50 70 db v o output voltage swing into 500 ? load 2.7 3.6 v output voltage swing into 150 ? load +3/-2.7 v i out current output, measured with 75 ? load (note 2) 30 40 ma xtalk ab crosstalk from non-selected input (at dc) -70 -100 db xtalk ch-ch crosstalk from one amplifier to another amplifier -70 -100 db v ih input logic high level 2.0 v v il input logic low level 0.8 v i il logic low input current (v in = 0v) -0.3 -40 -80 a i ih logic high input current (v in = 0v) -3 0 3 a i s total supply current 38 48 60 ma ac electrical specifications v cc = +5v, v ee = -5v, temperature = 25c, r l = 150 ? , c l = 3pf. parameter description min typ max units bw -3db bandwidth 300 mhz bw 0.1db 0.1db bandwidth 105 mhz dg differential gain at 3.58mhz 0.04 % dp differential phase at 3.58mhz 0.08 pkg peaking with nominal load 0.2 db sr slew rate (4v square wave, measured 25%?75%) 650 v/s EL4332
3 burn in schematic t s settling time to 0.1% of final value 13 ns t sw time to switch inputs 3 ns os overshoot, v out = 4v p-p 8% i so ab 10m input to input isolation at 10mhz 60 db 100m input to input isolation at 100mhz 40 db i so ch-ch 10m channel to channel isolation at 10mhz 61 db 100m channel to channel isolation at 100mhz 50 db ac electrical specifications v cc = +5v, v ee = -5v, temperature = 25c, r l = 150 ? , c l = 3pf. (continued) parameter description min typ max units pin descriptions pin name function a1, a2, a3 ?a? inputs to amplifiers 1, 2 and 3 respectively. b1, b2, b3 ?b? inputs to amplifiers 1, 2 and 3 respectively. gnd1, gnd2, gnd3 these are the indi vidual ground pins for each channel. out1, out2, out3 amplifier outputs. note: ther e is no short circuit protection on any output. v cc positive power supply. typically +5v. v ee negative power supply. typically -5v. a/b common input select pin, a logic high selects the ?a? inputs, logic low selects the ?b? inputs. cmos/ttl compatible. EL4332
4 typical performance curves figure 1. small signal transient response figure 2. large signal transient response figure 3. switching to ground from a large signal uncorrelated sine wave figure 4. switching from ground to a large signal uncorrelated sine wave figure 5. switching to ground from a small signal uncorrelated sine wave figure 6. switching from ground to a small signal uncorrelated sine wave figure 7. switching glitch (inputs at ground) figure 8. switching from a family of dc levels to ground EL4332
5 figure 9. switching from ground to a family of dc levels figure 10. channel a/b switching delay figure 11. gain vs frequency figure 12. gain vs frequency figure 13. -3db bw vs supply voltage figure 14. bandwidth vs die temperature typical performance curves (continued) EL4332
6 figure 15. frequency response with capacitive loads figure 16. input voltage noise over frequency figure 17. a-input to b?input isolat ion figure 18. channel-channel isolation figure 19. output swing vs supply voltage figure 20. output swing vs frequency typical performance curves (continued) EL4332
7 figure 21. slew rate vs supply voltage figure 22. slew rate vs die temperature figure 23. supply current vs supply voltage figure 24. power dissipation vs ambient temperature figure 25. power dissipation vs ambient temperature typical performance curves (continued) 1.136w j a = 1 1 0 c / w s o 1 6 ( 0 . 1 5 0 ? ) 1.2 1 0.8 0.6 0.2 0 0 255075100 150 ambient temperature (c) power dissipation (w) 125 85 jedec jesd51-3 low effective thermal conductivity test board 0.4 1.563w j a = 80 c / w s o 1 6 ( 0. 1 50? ) 1.8 1.6 1.4 0.8 0.6 0.2 0 0 255075100 150 ambient temperature (c) power dissipation (w) 125 85 jedec jesd51-7 high effective thermal conductivity test board 0.4 1 1.2 EL4332
8 applications information figure 26 shows a typical use for the EL4332. the circuit is a component video (r,g, b or y,u,v) multiplexer. since the gain of the internal amplifiers has been set to 2, the only extra components needed are the supply decoupling capacitors and the back terminating resistors, if transmission lines are to be driven. the EL4332 can drive backmatched 50 ? or 75 ? loads. grounds it will be noticed that eac h mux-amp channel has its own separate ground pin. these ground pins have been kept separate to keep the channel separation inside the chip as large as possible. the feedback resistors use these ground pins as their reference. the resistors total 400 ? , so there is a significant signal current flowing from these pins to ground. the ground pins should all be connected together, to a ground plane underneath the chip. 1 oz. copper for the ground plane is highly recommended. further notes and recommended practices for high speed printed circuit board layout can be found in the tutorials in the elantec databooks. supplies supply bypassing should be as physically near the power pins as possible. chip capacitors should be used to minimize lead inductance. note that larger values of capacitor tend to have larger internal inductances. so when designing for 3 transmission lines or similar moderate loads, a 0.1f ceramic capacitor right next to the power pin in parallel with a 22f tantalum capacitor plac ed as close to the 0.1f is recommended. for lighter loadings, or if not all the channels are being used, a single 4.7f capacitor has been found quite adequate. note that component video signals do tend to have a high level of signal correlation. this is especially true if the video signal has been derived from 3 synchronously clocked dacs. this corresponds to all three channels drawing large slew currents simultaneously from the supplies. thus, proper bypassing is critical. figure 26. typical connection for a 2:1 component video multiplexer EL4332
9 logic inputs the a/b select, logic input, is internally referenced to ground. it is set at 2 diode drops above ground, to give a threshold of about 1.4v (see figure 27). the pnp input transistor requires that the driving gate be able to sink current, typically < 30a, for a logic ?low?. if left to float, it will be a logic ?high?. the input pnp transistors have sufficient gain that a simple level shift circuit (see figure 28) can be used to provide a simple interface with emitter coupled logic. typically, 200mv is enough to switch from a solid logic ?low? to a ?high.? the capacitor c ff is only in the network to prevent the a/b pin?s capacitance from slowing the control signal. the network shown level shifts the ecl levels, -0.7v to -1.5v to +1.6v and +1.1v respectively. the terminating resistor, r tt , is required since the open emit ter of the ecl gate can not sink current. if a -2v rail is not being used, a 220 ? to 330 ? resistor to the -5.2v rail would have the same effect. expanding the multiplexer figure 27. simplified logic input stage figure 28. adapting the select pin for ecl logic levels figure 29. typical connection for a 3:1 component video multiplexer EL4332
10 a bandwidth selectable circuit in figure 30, a circuit is shown that allows three signals to be either low pass filtered or full bandwidth. this could be useful where an input signal is frequently noisy. the component values shown give a butterworth lpf response, with a -3db frequency of 50mhz. note again, the resistor values are low, so that stray capacitance does not affect the desired cut-off frequency. figure 30. switched 50mhz low pass filter for high/low resolution monitors EL4332
11 EL4332 macromodel * EL4332 macromodel * revision a, april 1996 **************************************************************************** *applications hints. the EL4332 has two v cc pins, one v ee pin, and three ground *pins. the v cc pins (pins 14 and 15 are internally shorted together in the model, *but the ground pins (gnd1, gnd2, and gn d3 (nodes 2, 7, and 10, respectively) *must be connected to ground (node 0) using a le-6w resistor. alternatively, * nodes 2, 7, and 10 may be connected to ground through a 25 ? resistor in parallel * with a 4nh inductor to simulate package and pcb parasitics. **************************************************************************** * connections: * out1 * | gnd1 * | | a1 * | | | b1 * | | | | b2 * | | | | | a2 * | | | | | | gnd2 * | | | | | | | out2 * | | | | | | | | * | | | | | | | | * 1 2 3 4 5 6 7 8 * * out3 * | gnd3 * | | b3 * | | | a3 * | | | | v ee * | | | | | v cc * | | | | | | v cc * | | | | | | | a/b * | | | | | | | | * | | | | | | | | * 9 10 11 12 13 14 15 16 ************a b switch *************** rshort 14 15 le-12 rshort1 15 0 100 meg isw 14 110 1.5 ma vref 111 0 1.6v q1 101 16 110 qp q2 102 111 110 qp r1 101 13 500 r2 102 13 500 rd1 107 0 100 esw 107 0 table {v(102, 101)*100} (0,0) (1,1) * ************amplifier #1 ************* q131 103 3 112 qp q141 104 114 113 qp q151 105 4 115 qp q161 106 117 116 qp ia11 14 112 1 ma ia21 14 113 1 ma ib11 14 115 1 ma ib21 14 116 1 ma rga1 112 113 275 rgb1 115 116 275 r31 103 13 275 r41 104 13 275 EL4332
12 r51 105 13 275 r61 106 13 275 r71 1 114 400 r81 114 2 400 r911 117 400 r110 117 2 400 ediff1 108 0 value {(v(104,103) *v(107))+(v(106,105)*(1-v(107)))} rdiff1 108 0 1k * *compensation section * ga1 0 134 108 0 1m rh1 134 0 5 meg cc1 134 0 0.6 pf * *poles * ep1 141 0 134 0 1.0 rpa1 141 142 200 cpa1 142 0 0.75 pf rpb1 142 143 200 cpb1 143 0 0.75 pf * *output stage * i011 15 150 1.0 ma i021 151 13 1.0 ma q71 13 143 150 qp q81 15 143 151 qn q91 15 150 152 qn q101 13 151 153 qp ros11 152 1 2 ros21 153 1 2 * ************amplifier #2*********** q231 203 6 212 qp q241 204 214 213 qp q251 205 5 215 qp q261 206 217 216 qp ia12 14 212 1 ma ia22 14 213 1 ma ib12 14 215 1 ma ib22 14 216 1 ma rga2 212 213 275 rgb2 215 216 275 r231 203 13 275 r241 204 13 275 r251 205 13 275 r261 206 13 275 r271 8 214 400 r281 214 7 400 r291 8 217 400 r210 217 7 400 ediff2 208 0 value {(v(204,203) *v(107))+(v(206,205)*(1-v(107)))} rdiff2 208 0 1k * * compensation section * ga2 0 234 208 0 1m rh2 234 0 5 meg cc2 234 0 0.6 pf EL4332
13 * * poles * ep2 241 0 234 0 1.0 rpa2 241 242 200 cpa2 242 0 0.75 pf rpb2 242 243 200 cpb2 243 0 0.75 pf * *output stage * i0 12 15 250 1.0 ma i022 251 13 1.0 ma q271 13 243 250 qp q281 15 243 251 qn q291 15 250 252 qn q201 13 251 253 qp ros12 252 8 2 ros22 253 8 2 * ************amplifier #3 ************ q331 303 12 312 qp q341 304 314 313 qp q351 305 11 315 qp q361 306 317 316 qp ia13 14 312 1 ma ia23 14 313 1 ma ib13 14 315 1 ma ib23 14 316 1 ma rga3 312 313 275 rgb3 315 316 275 r331 303 13 275 r341 304 13 275 r351 305 13 275 r361 306 13 275 r371 9 314 400 r381 314 10 400 r391 9 317 400 r310 317 10 400 ediff3 308 0 value {( v(304,303)*(v(107))+(v(306,305)*(1-v(107)))} rdiff3 308 0 1k * * compensation * ga3 0 334 308 01m rh3 334 0 5 meg cc3 334 0 0.6 pf * * poles * ep3 341 0 3340 1.0 rpa3 341 342 200 cpa3 342 0 0.75 pf rpb3 342 343 200 cpb3 343 0 0.75 pf * * output stage * i013 15 350 1.0 ma i023 351 13 1.0 ma q371 13 343 350 qp EL4332
14 q381 15 343 351 qn q391 15 350 352 qn q301 13 351 353 qp ros13 352 9 2 ros23 353 9 2 * * power supply current * ips 15 13 22 ma * *models * .model qp pnp(is=1.5e-16 bf=300 tf=0.01 ns) .model qn npn(is=0.8e-18 bf=300 tf=0.01 ns) .ends EL4332
15 all intersil u.s. products are manufactured, asse mbled and tested utilizin g iso9000 quality systems. intersil corporation?s quality certifications c an be viewed at www.intersil.com/design/quality intersil products are sold by description only. intersil corporation 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 EL4332

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