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1 isl54217 usb 2.0 high-speed x 2 channels/stereo audio dual sp3t (dual 3-to-1 multiplexer) isl54217 the intersil isl54217 is a single supply dual sp3t analog switch that operates from a single supply in the range of 2.7v to 4.6v. it was designed to multiplex between audio stereo signal s and two different usb 2.0 high speed differenti al data signals. the audio channels allow signal swings below ground, allowing the multiplexing of voice and data signals through a common headphone connector in personal media players and other portable battery powered devices. the audio switch cells can pass 1v ground referenced audio signals with very low distortion (<0.03% thd+n when driving 5mw into 32 loads). the usb switch cells have very low on-capacitance (8pf) and high bandwidth to pass usb high speed signals (480mbps) with minimal edge an d phase distortion. the isl54217 is available in a tiny 12 ld 2.2mmx1.4mm ultra thin qfn and a 12 ld 3mmx3mm tqfn package. it operates over a temperature range of -40c to +85c. related literature* (see page 22) ? technical brief tb363 ?guidelines for handling and processing moisture sensitive surface mount devices (smds) features ? high speed (480mbps) and full speed (12mbps) signaling capability per usb 2.0 ? low distortion negative signal capability audio switches ? clickless/popless audio switches ? power off protection ? com pins overvoltage tolerant to 5.5v ? low distortion headphone audio signals -thd+n at 5mw into 32 load. . . . . . . <0.03% ? crosstalk (100khz). . . . . . . . . . . . . . . . . . -98db ? off-isolation (100khz) . . . . . . . . . . . . . . 95.5db ? single supply operation (v dd ) . . . . . 2.7v to 4.6v ? -3db bandwidth usb switches. . . . . . . . . 700mhz ? available in tiny 12 ld tqfn and tqfn packages ? compliant with usb 2.0 short circuit requirements without additional external components ? pb-free (rohs compliant) applications* (see page 22) ? mp3 and other personal media players ? cellular/mobile phone application block diagram click/ isl54217 usb transceiver high-speed audio usb/headphone jack com - com + c1 gnd 1d+ 1d- r l vdd c0 logic control controller codec v bus 3.3v 2d- usb 4m 50k high-speed transceiver 2d+ 50k 1k 1k pop caution: these devices are sensitive to electrostatic 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. 2008, 2009, 2010. all rights reserved all other trademarks mentioned are the property of their respective owners. june 17, 2010 fn6817.4
2 fn6817.4 june 17, 2010 state diagram pin configurations isl54217 (12 ld 2.2x1.4 tqfn) top view isl54217 (12 ld 3x3 tqfn) top view note: 1. isl54217 switches shown for c1 = logic ?1? and c0 = logic ?1?. the r and l 50k pull-down resistors, c1 and co 4m pull-down resistors an d com- and com+ 1k shunts are not shown. all audio usb1 usb2 audio 00 01 11 switches off 10 0 0 0 1 1 00 01 11 01 10 00 00 11 00 10 internal register value when transistioned into this state 01 11 11 mute 10 12 9 c1 com - com + vdd c0 8 7 11 6 4 5 2 1 3 2d+ l r gnd 1d- 1d+ 2d- logic control c/p c/p 1 3 12 c1 com - com + vdd c0 11 10 2 9 7 8 5 46 2d+ l r gnd 1d- 1d+ 2d- logic control c/p c/p pd isl54217
3 fn6817.4 june 17, 2010 pin descriptions tqfn tqfn name function 1 1 2d+ usb2 differential input 2 2 l audio left input 3 3 r audio right input 4 4 1d- usb1 differential input 5 5 1d+ usb1 differential input 6 6 gnd ground connection 7 7 com+ voice and data common pin 8 8 com- voice and data common pin 9 9 c1 digital control input 10 10 c0 digital control input 11 11 v dd power supply 12 12 2d- usb2 differential input - pd pd thermal pad. tie to ground or float truth table current code last code mode shunt switches internal register c1 c0 c1 c0 click/pop audio shunts 1k com shunts 00xxall switches off on off 0 0 1 x x usb1 on off 0 1000 usb2 on off 0 1001 usb2 on off 0 1010 usb2 on off 0 11xx audio off off 1 1010 mute off on 1 1011 mute off on 1 note: c0, c1: logic ?0? when 0.5v, logic ?1? when 1.4v with v dd in the range of 2.7v to 3.6v. ordering information part number (note 5) part marking temp. range (c) package (pb-free) pkg. dwg. # isl54217iruz-t (notes 2, 3) gp -40 to +85 12 ld 2.2mmx1.4mm tqfn (tape and reel) l12.2.2x1.4a isl54217irtz (note 4) 4217 -40 to +85 12 ld 3mmx3mm tqfn l12.3x3a isl54217irtz-t (notes 2, 4) 4217 -40 to +85 12 ld 3mmx3mm tqfn (tape and reel) l12.3x3a ISL54217EVAL1Z evaluation board notes: 2. please refer to tb347 for details on reel specifications. 3. these intersil pb-free plastic packaged products employ special pb-free material sets; molding compounds/die attach materials and nipdau plate - e4 terminat ion finish, which is rohs compliant and compatible with both snpb and pb-free soldering operations. intersil pb-free produc ts are msl classified at pb -free peak reflow temperatur es that meet or exceed the pb-free requirements of ipc/jedec j std-020. 4. these intersil pb-free plastic packaged products employ special pb-free material sets, molding compounds/die attach materials, and 100% matte tin pl ate plus anneal (e3 termination finish, which is rohs compliant and compatible with both snpb and pb-free soldering operations). inte rsil pb-free products are msl classified at pb-free peak reflow temperatures that meet or exceed the pb-free requirements of ipc/jedec j std-020. 5. for moisture sensitivity level (msl), please see device in formation page for isl54217 . for more information on msl please see techbrief tb363 . isl54217
4 fn6817.4 june 17, 2010 absolute maximum ratings thermal information v dd to gnd. . . . . . . . . . . . . . . . . . . . . . . . . -0.3v to 5.5v input voltages 1d+, 1d-, l, r, 2d+, 2d-. . . . . . . . . . . . . . . -2v to 5.5v c0, c1 (note 6). . . . . . . . . . . . . . . . . . . . . -0.3v to 5.5v output voltages com-, com+ . . . . . . . . . . . . . . . . . . . . . . . -2v to 5.5v continuous current (l, r) . . . . . . . . . . . . . . . . . . . 60ma peak current (l, r) (pulsed 1ms, 10% duty cycle, max) . . . . . . . . . 120ma continuous current (1d-, 1d+, 2d-, 2d+) . . . . . . . 40ma peak current (1d-, 1d+, 2d-, 2d+) (pulsed 1ms, 10% duty cycle, max) . . . . . . . . . 100ma esd rating: human body model . . . . . . . . . . . . . . . . . . . . . . . . >5kv machine model . . . . . . . . . . . . . . . . . . . . . . . . . . >500v charged device model . . . . . . . . . . . . . . . . . . . . . . >2kv latch-up tested per jedec; clas s ii level a . . . . . . at 85c thermal resistance (typical) ja (c/w) jc (c/w) 12 ld tqfn package (note 7, 10). 155 90 12 ld tqfn package (notes 8, 9). . 58 1.0 maximum junction temperature (plastic package). . +150c maximum storage temperature range. . . . . -65c to +150c pb-free reflow profile . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/pb-freereflow.asp operating conditions temperature range . . . . . . . . . . . . . . . . . . -40c to +85c supply voltage range . . . . . . . . . . . . . . . . . . 2.7v to 4.6v caution: do not operate at or near the maximum ratings listed for extended periods of time. exposure to such conditions may adv ersely impact product reliability and result in failures not covered by warranty. notes: 6. signals on c1 and c0 exceeding gnd by specified amount are clamped. limit current to maximum current ratings. 7. ja is measured with the component mounted on a high effective thermal conductivity test board in free air. see tech brief tb379 for details. 8. ja is measured in free air with the component mounted on a high effective thermal conductivity test board with ?direct attach? features. see tech brief tb379. 9. for jc , the ?case temp? location is the center of the exposed metal pad on the package underside. 10. for jc , the ?case temp? location is taken at the package top center. electrical specifications - 2.7v to 3.6v supply test conditions: v dd = +3.0v, gnd = 0v, v c0h , v c1h = 1.4v, v c0l , v c1l = 0.5v, (note 11), unless otherwise specified. boldface limits apply over the operating temperature range, -40c to +85c. parameter test conditions temp (c) min (notes 12, 13) typ max (notes 12, 13) units analog switch characteristics audio switches (l, r) analog signal range, v analog v dd = 3.0v to 3.6v, audio mode (c0 = v dd , c1 = v dd ) full -1.5 - 1.5 v on-resistance, r on v dd = 3.0v, audio mode (c0 = 1.4v, c1 = 1.4v), i comx =60ma, v l or v r = -0.85v to 0.85v, (see figure 3, note 15) +25 - 2.3 2.8 full - - 3.4 r on matching between channels, r on v dd = 3.0v, audio mode (c0 = 1.4v, c1 = 1.4v), i comx =60ma, v l or v r = voltage at max r on over signal range of -0.85v to 0.85v, (notes 15, 16) +25 - 0.04 0.25 full - - 0.26 r on flatness, r flat(on) v dd = 3.0v, audio mode (c0 = 1.4v, c1 = 1.4v), i comx =60ma, v l or v r = -0.85v to 0.85v, (notes 14, 15) +25 - 0.03 0.05 full - - 0.07 click/pop shunt resistance, r l , r r v dd = 3.6v, all off mode (c0 = 0.5v, c1 = 0.5v), v com- or v com+ = -0.85v, 0.85v, v l or v r = -0.85v, 0.85v, measure current into l or r pin and calculate resistance value. +25 - 28 - usb/data switches (1d+, 1d-, 2d+, 2d-) analog signal range, v analog v dd = 2.7v to 4.6v, usb1 mode (c0 = 0v, c1 = v dd ) or usb2 mode (c0 = v dd , c1 = 0v) full -1 - vdd v isl54217
5 fn6817.4 june 17, 2010 on-resistance, r on v dd = 2.7v, usb1 mode (c0 = 0.5v, c1 = 1.4v) or usb2 mode (c0 = 1.4v, c1 = 0.5v), i comx = 40ma, v d+ or v d = 0v to 400mv (see figure 4, note 15) 25 - 6.2 8 full - - 10 r on matching between channels, r on v dd = 2.7v, usb1 mode (c0 = 0.5v, c1 = 1.4v) or usb2 mode (c0 = 1.4v, c1 = 0.5v), i comx = 40ma, v d+ or v d- =voltage at max r on , (notes 15, 16) 25 - 0.08 0.5 full - - 0.55 r on flatness, r flat(on) v dd = 2.7v, usb1 mode (c0 = 0.5v, c1 = 1.4v) or usb2 mode (c0 = 1.4v, c1 = 0.5v), i comx = 40ma, v d+ or v d- = 0v to 400mv, (notes 14, 15) 25 - 0.26 1 full - - 1.2 on-resistance, r on v dd = 3.3v, usb1 mode (c0 = 0.5v, c1 = 1.4v) or usb2 mode (c0 = 1.4v, c1 = 0.5v), i comx = 40ma, v d+ or v d- = 3.3v (see figure 4, note 15) +25 - 9.8 20 full - - 25 off leakage current, i d+(off) or i d-(off) v dd = 3.6v, all off mode (c0 = 0.5v, c1 = 0.5v), v com- or v com+ = 0.5v, 0v, v d+ or v d- = 0v, 0.5v, l=r = float 25 -15 0.11 15 na full -20 - 20 na on leakage current, i dx v dd = 3.3v, usb1 mode (c0 = 0.5v, c1 = 1.4v) or usb2 mode (c0 = 1.4v, c1 = 0.5v), v d+ or v d- = 2.7v, com- = com+ = float, l and r = float 25 -20 2.4 20 na full -25 - 25 na dpdt dynamic characteristics all off to usb or usb to all off address transition time, t trans v dd = 2.7v, r l = 50 , c l = 10pf, (see figure 1) 25 - 175 - ns audio to usb1 a ddress transition time, t trans v dd = 2.7v, r l = 50 , c l = 10pf, (see figure 1) 25 - 12 - s break-before-make time delay, t d v dd = 3.6v, r l = 50 , c l = 10pf, (see figure 2) 25 - 52 - ns skew, (t skewout - t skewin )v dd = 3.0v, usb1 mode (c0 = 0v, c1 = v dd ) or usb2 mode (c0 = v dd , c1 = 0v), r l = 45 , c l = 10pf, t r = t f = 500ps at 480mbps, (duty cycle = 50%) (see figure 7) 25 - 75 - ps to t a l j i t t e r, t j v dd =3.0v, usb1 mode (c0 = 0v, c1 = v dd ) or usb2 mode (c0 = v dd , c1 = 0v), r l = 45 , c l = 10pf, t r = t f = 500ps at 480mbps 25 - 210 - ps rise/fall degradation (propagation delay), t pd v dd = 3.0v, usb1 mode (c0 = 0v, c1 = v dd ) or usb2 mode (c0 = v dd , c1 = 0v), r l = 45 , c l = 10pf, ( see figure 7) 25 - 250 - ps audio crosstalk r to com-, l to com+ v dd = 3.0v, audio mode (c0 = v dd , c1 = v dd ), r l =32 , f = 20hz to 20khz, v r or v l = 0.707v rms , (see figure 6) 25 - -88 - db crosstalk (audio to usb, usb to audio) v dd = 3.0v, r l = 50 , f = 100khz 25 - -98 - db off-isolation v dd = 3.0v, r l = 50 , f = 100khz 25 - 95.5 - db audio off-isolation (all off mode) v dd = 3.0v, c0 = 0v, c1 = 0v, r l = 32 , f = 20hz to 20khz 25 - 115 - db audio off-isolation (mute mode) v dd = 3.0v, c1 = v dd , c0 = 0v, r l = 32 , f = 20hz to 20khz 25 - 105 - db audio off-isolation (mute mode) v dd = 3.0v, c1 = v dd , c0 = 0v, r l = 20k , f = 20hz to 20khz 25 - 77 - db electrical specifications - 2.7v to 3.6v supply test conditions: v dd = +3.0v, gnd = 0v, v c0h , v c1h = 1.4v, v c0l , v c1l = 0.5v, (note 11), unless otherwise specified. boldface limits apply over the operating temperature range, -40c to +85c. (continued) parameter test conditions temp (c) min (notes 12, 13) typ max (notes 12, 13) units isl54217
6 fn6817.4 june 17, 2010 total harmonic distortion f = 20hz to 20khz, v dd = 3.0v, c0 = v dd , c1 = v dd , l or r = 0.707v rms (2v p-p ), r l = 32 25 - 0.045 - % total harmonic distortion f = 20hz to 20khz, v dd = 3.0v, c0 = v dd , c1 = v dd , 5mw into r l = 32 25 - 0.025 - % click and pop v dd = 3.3v, audio mute (c0 = 0v, c1 = 0v), r l =1k , l or r = 0 to 1.25v dc step or 1.25v to 0v dc step, (see figure 8) 25 - 75 - vp click and pop v dd = 3.3v, c0, c1 = 0.5hz square wave, r l = 1k , l or r = ac coupled to ground, (see figure 9) 25 - 520 - vp usb switch -3db bandwidth signal = 0dbm, 0.2vdc offset, r l = 50 , c l = 5pf 25 - 700 - mhz audio switch -3db bandwidth signal = 0dbm, r l = 50 , c l = 5pf 25 - 330 - mhz 1d+/1d- off capacitance, c 1d+off , c 1d-off f = 1mhz, v dd = 3.0v, c0 = v dd , c1 = v dd , v d- or v d+ = v comx = 0v (see figure 5) 25 - 3 - pf l/r off capacitance, c loff , c roff f = 1mhz, v dd = 3.0v, c0 = 0v, c1 = v dd , l or r = comx = 0v (see figure 5) 25 - 5 - pf 2d+/2d- off capacitance, c 2d+off , c 2d-off f = 1mhz, v dd = 3.3v, c0 = v dd , c1 = v dd , tx or rx = comx = 0v (see figure 5) 25 - 3 - pf com on capacitance, c com- (on) , c com+(on) f = 1mhz, v dd = 3.0v, usb1 mode (c0 = 0v, c1 = v dd ) or usb2 mode (c0 = v dd , c1 = 0v) (see figure 5) 25 - 8 - pf power supply characteristics power supply range, v dd full 2.7 4.6 v positive supply current, i dd (all off mode) v dd = 3.6v, c1 = gnd, c0 = gnd 25 - 6.2 10 a full - - 15 a positive supply current, i dd (usb1 mode) v dd = 3.6v, c1 = gnd, c0 = v dd 25 - 6.5 10 a full - - 15 a positive supply current, i dd (usb2 mode) v dd = 3.6v, c1 = v dd , c0 = gnd 25 - 6.2 10 a full - - 15 a positive supply current, i dd (audio mode) v dd = 3.6v, c0 = c1 = v dd )25-914a full - - 20 a positive supply current, i dd (mute mode) v dd = 3.6v, c1 = v dd , c0 = gnd 25 - 6.6 10 a full - - 15 a power off comx current, i comx v dd = 0v, c0 = c1 = float, comx = 5.25v 25 - - 4 a power off logic current, i c0 , i c1 v dd = 0v, c0 = c1 = 5.25v 25 - 11 - a power off d+/d- current, i xd+ , i xd- v dd = 0v, c0 = c1 = float, xd- = xd+ = 5.25v 25 - 5 - a digital input characteristics c0, c1 voltage low, v c0l , v c1l v dd = 2.7v to 3.6v full - - 0.5 v c0, c1 voltage high, v c0h , v c1h v dd = 2.7v to 3.6v full 1.4 - 5.25 v c0, c1 input current, i c0l , i c1l v dd = 3.6v, c0 = c1= 0v or float full -50 6.2 50 na c0, c1 input current, i c0h , i c1h v dd = 3.6v, c0 = c1= 3.6v full -2 1.6 2 a electrical specifications - 2.7v to 3.6v supply test conditions: v dd = +3.0v, gnd = 0v, v c0h , v c1h = 1.4v, v c0l , v c1l = 0.5v, (note 11), unless otherwise specified. boldface limits apply over the operating temperature range, -40c to +85c. (continued) parameter test conditions temp (c) min (notes 12, 13) typ max (notes 12, 13) units isl54217
7 fn6817.4 june 17, 2010 c0, c1 pull-dow n resistor, r cx v dd = 3.6v, c0 = c1= 3.6v, measure current into c0 or c1 pin and calculate resistance value. full - 4 - m notes: 11. v logic = input voltage to perform proper function. 12. the algebraic convention, whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet. 13. parameters with min and/or max limits are 100% tested at +25 c, unless otherwise specified. temperature limits established by characterization and ar e not production tested. 14. flatness is defined as the difference be tween maximum and minimum value of on-resistance over the specified analog signal range. 15. limits established by characterizat ion and are not production tested. 16. r on matching between channels is calculated by subtracting the channel with the highest max r on value from the channel with lowest max r on value, between l and r or between 1d+ and 1d- or between 2d+ and 2d-. test circuits and waveforms logic input waveform is inverted for switches that have the opposite logic sense. figure 1a. address t trans measurement points repeat test for all switches. c l includes fixt ure and stray capacitance. figure 1b. address t trans test circuit figure 1. switching times electrical specifications - 2.7v to 3.6v supply test conditions: v dd = +3.0v, gnd = 0v, v c0h , v c1h = 1.4v, v c0l , v c1l = 0.5v, (note 11), unless otherwise specified. boldface limits apply over the operating temperature range, -40c to +85c. (continued) parameter test conditions temp (c) min (notes 12, 13) typ max (notes 12, 13) units 50% t r < 20ns t f < 20ns t off 90% v c0,c1 0v v input v c0,c1 t on logic input switch input switch output 90% v out v out v (input) r l r l r on + ----------------------- - = switch input logic v out r l c l comx c0, c1 50 10pf gnd v dd c v input input isl54217
8 fn6817.4 june 17, 2010 figure 2a. measurement points repeat test for all switches. c l includes fixt ure and stray capacitance. figure 2b. test circuit figure 2. break-before-make time figure 3. audio r on test circuit figure 4. usb r on test circuit figure 5. capacitance test circuit figure 6. audio crosstalk test circuit test circuits and waveforms (continued) 90% v c0 v c1 t d logic input switch output 0v v out logic c0, c1 comx r l c l v out 10pf 50 1d- or 1d+ l or r v dd gnd v input c input 2d- or 2d+ v dd c comx l or r gnd v l or r v 1 r on = v 1 /60ma 60ma repeat test for all switches. v coh c0 c1 v c1h v dd c d- or d+ comx c0 gnd v d- or d+ v 1 r on = v 1 /40ma 40ma repeat test for all switches. c1 v c0l and v c1h or v c0h and v c1l v dd c gnd audio or usb comx v cx impedance analyzer v cxl or repeat test for all switches. ctrl v cxh 0v or float analyzer v dd c l or r signal generator 32 gnd v cx 32 nc comx r or l ctrl comx isl54217
9 fn6817.4 june 17, 2010 figure 7a. measurement points figure 7b. test circuit figure 7. skew test figure 8. click and pop test circuit test circuits and waveforms (continued) din+ din- out+ out- 50% 50% 90% 10% 10% 10% 10% 90% 90% 50% 90% 50% t ri t fi t ro t f0 t skew_i t skew_o out+ c l com- d+ gnd v dd c d- com+ c l out- din+ din- |tro - tri| delay due to switch for rising input and rising output signals. |tfo - tfi| delay due to switch for fa lling input and falling output signals. |tskew_0| change in skew through the switch for output signals. |tskew_i| change in skew through the switch for input signals. 15.8 15.8 143 143 45 45 c0 c1 v dd v dd 0v v dd gnd l com- c0 audio precision set audio analyzer for peak detection, 32 samples/s ec, aweighted filter, manual range 1x/y, units to dbv c1 system ii cascade analyzer r com+ 3.3v r load cha chb 0v to 1.25v dc step click and pop or 1.25v to 0v dc step r load 0v 0v all off mode isl54217
10 fn6817.4 june 17, 2010 figure 9. click and pop test circuit test circuits and waveforms (continued) v dd c gnd l com- audio precision c0, c1 system ii cascade analyzer r com+ r load cha chb click and pop set audio analyzer for peak detection, 32 samples/sec, aweighted filter, manual range 1x/y, units to dbv r load 3.3v 0v to v dd square wave isl54217
11 fn6817.4 june 17, 2010 block diagram detailed description the isl54217 device consists of dual sp3t (single pole/triple throw) analog switches. it operates from a single dc power supply in the range of 2.7v to 4.6v. it was designed to function as differential 3-to-1 multiplexer to select between two different usb differential data signals and audio l and r stereo signals. it comes in a tiny tqfn and tqfn packages for use in mp3 players, pdas, cell phones, and other personal media players. a device consists of two 2.3 audio switches and four 6.2 usb switches. the audio switches can accept signals that swing below ground. they were designed to pass audio left and right stereo signals, that are ground referenced, with minimal distortion. the usb switches were designed to pass high-speed usb differential data signals with minimal edge and phase distortion. the isl54217 was specifically designed for mp3 players, personal media players and cellphone applications that need to combine the stereo audio and usb data channels into a single shared connector, thereby saving space and component cost. the ?block diagram? of this functionality is shown on page 11. the isl54217 contains two logic control pins (c1 and c0) that determine the state of the device. the part has the following five states or modes of operation: all switches off; usb1; usb2; audio; and audio mute. these states are discussed in detail in ?logic control? on page 12. a detailed description of the various types of switches are provided in ?audio switches? beginning on page 11. audio switches the two audio switches (l, r) are 2.3 switches that can pass signals that swing below ground. over a signal range of 1v (0.707v rms ) with vdd > 2.7v, these switches have an extremely low r on resistance variation. they can pass ground referenced audio signals with very low distortion (<0.05% thd+n) when delivering 15.6mw into a 32 headphone speaker load. see figures 20, 21, 22, 23 and 24 thd+n performance curves. crosstalk between the l and r audio switches over the frequency range of 20hz to 20khz when driving a 32 load is <-88db. these switches have excellent off-isolation >105db over the audio band when connected to 32 loads and 77db when connected to 20k loads (in audio mute mode). see figures 25 and 26 in ?typical performance curves? section beginning on page 14. the audio drivers should be connected at the l and r side of the switch (pins 2 and 3) and the speaker loads should be connected at the com side of the switch (pins 7 and 8). the switches have click and pop circuitry on the l and r side that is activated when the part comes out of audio mode by taking the c1 and c0 logic pins low (all off mode). the isl54217 should be put in this mode before powering down or powering up of the audio codec drivers. in this mode the audi o, usb1, usb2 switches will be open (off) and the audio click and pop circuitry will be on. the high off-isolation of the audio switches along with the click and pop circuitry will isolate the transients generated during power-up and power down of the audio codecs from getting through to the headphones thus click/ isl54217 usb transceiver high-speed audio usb/headphone jack com - com + c1 gnd 1d+ 1d- r l vdd c0 logic control controller codec v bus 3.3v 2d- usb 4m 50k high-speed transceiver 2d+ 50k 1k pop #2 #1 or uart transceiver isl54217
12 fn6817.4 june 17, 2010 eliminating click and pop noise in the headphones. see the ?ac coupled click and pop operation? on page 13. the audio switches are active (turned on) whenever the c1 and c0 logic pins are logic ?1? (high). usb switches the four usb switches (1d+, 1d-, 2d+, 2d-) are 6.2 bidirectional switches that were specifically designed to pass high-speed usb differential data signals in the range of 0v to 400mv. the switches have low capacitance and high bandwidth to pass usb high-speed signals (480mbps) with minimum edge and phase distortion to meet usb 2.0 signal quality specifications. see figures 27 and 28 for high-speed eye pattern taken with switch in the signal path. these switches can also swing rail to rail and pass usb full-speed signals (12mbps) with minimal distortion. see figure 29 for full-speed eye pattern taken with switch in the signal path. the maximum normal operating signal range for the usb switches is from -1v to v dd . the signal voltage at d- and d+ should not be allow to exceed the v dd voltage rail or go below ground by more than -1v for normal operation. however, in the event that the usb 5.25v v bus voltage were shorted to one or both of the com pins, the isl54217 has fault protection circuitry to prevent damage to the isl54217 part. the fault circuitry allows the signal pins (com-, com+, 1d-, 1d+, 2d-, 2d+, l and r) to be driven up to 5.25v while the v dd supply voltage is in the range of 0v to 4.6v. this fault condition causes no stress to the ic. in addition, when v dd is at 0v (ground) all switches are off and the fault voltage is isolated from the other side of the switch. when v dd is in the range of 2.7v to 4.6v the fault voltage will pass through to the output of an active switch channel. note: during the fault condition normal operation is not guaranteed until the fault condition is removed. the usb (1d+ and 1d-) switches are active (turned on) whenever the c1 is logic ?0? (low) and c0 is logic ?1? (high). the usb (2d+ and 2d-) switches are active (turned on) whenever the c1 is logic ?1? (high) and c0 is logic ?0? (low) provided the last state was not the audio or audio mute state. isl54217 operation the discussion that follows will discuss using the isl54217 in the ?block diagram? on page 11. logic control the state of the isl54217 device is determined by the voltage at the c1 pin (pin 9) and the c0 pin (pin 10). the part has five states or modes of operation. the all switches off mode, usb1 mode, usb2 mode, audio mode and audio mute mode. refer to ?truth table? on page 3 and ?state diagram? on page 2 of data sheet. the c1 pin and c0 pin are internally pulled low through 4m resistors to ground and can be tri-stated or left floating. the c1 pin and c0 pin can be driven with a voltage that is higher than the v dd supply voltage. they can be driven up to 5.25v with the v dd supply in the range of 2.7v to 4.6v. driving the logi c higher than the supply rail will cause the logic current to increase. with v dd = 2.7v and v logic = 5.25v, i logic current is approximately 5.5a. logic control voltage levels with vdd in the range of 2.7v to 3.6v the logic levels are: c1, c0 = logic ?0? (low) when 0.5v or floating. c1, c0 = logic ?1? (high) when 1.4v. all switches off mode if the c1 pin = logic ?0? and c0 pin = logic ?0? the part will be in the all switches off mode. in this mode the 2d- and 2d+ usb switches, the l and r audio switches and the 1d- and 1d+ usb switches will be off (high impedance). the audio click and pop shunt circuitry will be activated (on) and the 1k com shunt resistors will be disconnected (off). before powering down or powering up of the audio codecs drivers the isl54217 should be put in the all switches off mode. in this mode transients present at the l and r signal pins due to the changing dc voltage of the audio drivers will not pass to the headphones, preventing clicks and pops in the headphones. see the ?ac coupled click and pop operation? on page 13. it is recommended that when transitioning from usb1 to usb2 or from usb2 to usb1 that you always pass through the all switches off state. audio mode if the c1 pin = logic ?1? and c0 pin = logic ?1? the part will be in the audio mode. in audio mode the l (left) and r (right) 2.3 audio switches are on. the 1d- and 1d+ 6.2 usb switches and 2d- and 2d+ 6.2 usb switches will be off (high impedance). the audio click and pop circuitry is de-activated. the 1k shunts on the com side of the switch will be disconnected (off). when a headphone is plugged into the common connector, the controller will drive the c1 and c0 logic pins ?high? putting the part in the audio mode. in the audio mode, the audio drivers of the player can drive the headphones and play music. usb1 mode if the c1 pin = logic ?0? and c0 pin = logic ?1? the part will go into usb1 mode. in usb1 mode the 1d- and 1d+ 6.2 switches are on. the l and r 2.3 audio switches and 2d- and 2d+ 6.2 usb switches will be off (high impedance). isl54217
13 fn6817.4 june 17, 2010 the audio l and r click and pop shunt circuitry will be activated and the 1k com shunt resistors will be disconnected (off). when a usb cable from a computer or usb hub is connected at the common connector, the controller will route the incoming usb signal to usb transceiver section #1 by taking the c1 pin ?low? and the c0 pin ?high? putting the isl54217 part into the usb1 mode. in usb1 mode the computer or usb hub transceiver and the mp3 player or cellphone usb transceiver #1 are connected and digital data will be able to be transmit back and forth. usb2 mode if the c1 pin = logic ?1? and c0 pin = logic ?0? the part will be in the usb2 mode provided that the last state was not the audio or audio mute state. in the usb2 mode the 2d- and 2d+ 6.2 usb switches will be on and audio switches and the 1d- and 1d+ usb switches will be off (high impedance). the audio l and r click and pop shunt circuitry will be activated and the 1k com shunt resistors will be disconnected (off). when a usb cable from a computer or usb hub is connected at the common connector, the controller will route the incoming usb signal to usb transceiver section #2 by taking the c1 pin ?high? and the c0 pin ?low? putting the isl54217 pa rt into the usb2 mode. in usb2 mode the computer or usb hub transceiver and the mp3 player or cellphone usb transceiver #2 are connected and digital data will be able to be transmit back and forth. audio mute mode if the c1 pin = logic ?1? and c0 pin = logic ?0? the part will be in the audio mute mo de provided that the last state was the audio state. in the audio mute mode the 2d- and 2d+ usb switches, the l and r audio switches and the 1d- and 1d+ usb switches will be off (high impedance). the audio click and pop shunt circuitry will be de-activated and the 1k com shunt resistors will be connected (on). note: 1k com shunt resistors are only on when in audio mute mode. the 1k shunts provide 77db of off-isolation when driving 10k to 20k amplifier inputs. logic control timing between c1 and c0 the isl54217 has a unique logic control architecture. the part has five different logic states but only two external logic control pins, c1 and c0. refer to ?state diagram? on page 2 and ?truth table? on page 3. the following state transitions require both c1 and c0 logic control bits to change their logic levels in unison: all off(c1 = 0, c0 = 0) -----> audio (c1 = 1, c0 =1) audio (c1 = 1, c0 = 1) -----> all off (c1 = 0, c0 = 0) audio mute (c1 = 1, c0 = 0) ---> usb1 (c1 = 0, c0 = 1) the delay time between transiti on of these bits must be <100ns to ensure that you directly move between these states without momentarily transitioning to one of the other states. for example, if you are going from the ?all off? state to the ?audio? state and c0 does not go high until 100ns after c1 went high you will momentarily transition to the ?usb2? state. any signals connected at the usb2 signal lines will momentarily get passed through to the com outputs. delay time between c1 and c0 must be <100ns and should be controlled by logic control drivers with well behaved monotonic transitions from high to low and low to high and with typical logic family rise and fall times of 1ns to 6ns. power the power supply connected at vdd (pin 11) provides power to the isl54217 part. its voltage should be kept in the range of 2.7v to 4.6v. in a typical application, v dd will be in the range of 2.7v to 4.3v and will be connected to the battery or ldo of the mp3 player or cellphone. a 0.01f or 0.1f decoupling capacitor should be connected from the vdd pin to ground to filter out any power supply noise from entering the part. the capacitor should be located as close to the vdd pin as possible. before power-up and power-down of the isl54217 part, the c1 and c0 control pins should be driven to ground or tri-stated. this will put the switch in the all switches off state, which turns all switches off and activate the click and pop circuitry. this will minimize transients at the speaker loads during power-up and power-down of the isl54217 device. see figure 32 in the ?typical performance curves? section. ac coupled click and pop operation single supply audio drivers have their signal biased at a dc offset voltage, usually at 1/2 the dc supply voltage of the driver. as this dc bias voltage comes up or goes down during power-up or power-down of the driver, a transient can be coupled into the speaker load through the dc blocking capacitor (see the ?block diagram? on page 11). when a driver is off and suddenly turned on the rapidly changing dc bias voltage at the output of the driver will cause an equal voltage at the input side of the switch due to the fact that the voltage across the blocking capacitor cannot change instantly. if the switch is in the audio mode or there is no low impedance path to discharge the blocking capacitor voltage, before turning the audio switch on, a transient discharge will occur in the speaker, generating a click/pop noise. proper elimination of a click/pop transient at the speaker loads while powering up or down of the audio drivers requires that the isl54217 have its click/pop circuitry activated by putting the part in the all switches off mode. this allows the transients generated by the audio drivers to be discharged through the click and pop shunt circuitry. isl54217
14 fn6817.4 june 17, 2010 once the driver dc bias has reached vdd/2 and the transient on the switch side of the dc blocking capacitor has been discharged to ground through the click/pop shunt circuitry, the audio switches can be turned on and connected through to the speaker loads without generating any undesirable click/pop noise in the speakers. with a typical dc blocking capacitor of 220f and the click/pop shunt circuitry designed to have a resistance of 20 to 70 , allowing a 100ms wait time to discharge the transient before placing the switch in the audio mode will prevent the transient from getting through to the speaker load. see figures 30 and 31 in the ?typical performance curves? section. typical performance curves t a = +25c, unless ot herwise specified figure 10. audio on-resistance vs supply voltage vs switch voltage figure 11. audio on-resistance vs supply voltage vs switch voltage figure 12. audio on-resistance vs supply voltage vs switch voltage figure 13. audio on-resistance vs switch voltage vs temperature 2.45 2.50 2.55 2.60 2.65 2.70 2.75 2.80 2.85 2.90 2.95 -1.5 -1.0 -0.5 0 0.5 1.0 1.5 r on ( ) v com (v) i com = 60ma v dd = 3.6v v dd = 2.7v v dd = 2.7v v dd = 4.6v 2.48 2.50 2.52 2.54 2.56 2.58 2.60 -1.5 -1.0 -0.5 0 0.5 1.0 1.5 r on ( ) v com (v) v dd = 4.6v v dd = 3.6v v dd = 3.3v v dd = 3.0v v dd = 4.0v i com = 60ma 0 2 4 6 8 10 12 14 16 18 -1.5 -0.5 0.5 1.5 2.5 3.5 4.6 v dd = 4.6v v dd = 3.0v r on ( ) v com (v) i com = 60ma v dd = 3.6v 1.0 1.5 2.0 2.5 3.0 3.5 4.0 -1.5 -1.0 -0.5 0 0.5 1.0 1.5 r on ( ) v com (v) v dd = 3.0v +85c +25c -40c i com = 60ma isl54217
15 fn6817.4 june 17, 2010 figure 14. audio on-resistance vs switch voltage vs temperature figure 15. audio on-resistance vs switch voltage vs temperature figure 16. usb on-resistance vs supply voltage vs switch voltage figure 17. usb on-resista nce vs switch voltage vs temperature figure 18. usb on-resistance vs switch voltage vs temperature figure 19. usb on-resista nce vs switch voltage vs temperature typical performance curves t a = +25c, unless ot herwise specified (continued) +25c 0 2 4 6 8 10 12 14 16 18 -1.5 -1.0 -0.5 0 0.5 1.0 1.5 2.0 2.5 3.0 r on ( ) v com (v) i com = 60ma +85c -40c v dd = 3.0v +25c 0 2 4 6 8 10 12 14 16 18 -1.5 -0.5 0.5 1.5 2.5 3.6 -40c r on ( ) v com (v) i com = 60ma +85c v dd = 3.3v 5.8 5.9 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 0 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 r on ( ) v com (v) i com = 40ma v dd = 2.7v v dd = 3.3v v dd = 3.0v v dd = 3.3v v dd = 4.6v v dd = 4.0v 3 4 5 6 7 8 9 0 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 r on ( ) v com (v) i com = 40ma +85c +25c -40c v dd = 2.7v 3 4 5 6 7 8 9 0 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 r on ( ) v com (v) -40c i com = 40ma +85c +25c v dd = 3.3v 2 4 6 8 10 12 14 16 0 0.5 1.0 1.5 2.0 2.5 3.0 3.3 r on ( ) v com (v) i com = 40ma +25c -40c +85c v dd = 3.3v isl54217
16 fn6817.4 june 17, 2010 figure 20. thd+n vs supply voltage vs frequency figure 21. thd+n vs supply voltage vs frequency figure 22. thd+n vs signal levels vs fr equency figure 23. thd+n vs output voltage figure 24. thd+n vs output power figure 25. audio channel-to-channel crosstalk typical performance curves t a = +25c, unless ot herwise specified (continued) 0.046 0.056 0.047 0.048 0.049 0.050 0.051 0.052 0.053 0.054 0.055 20 20k 50 100 200 500 1k 2k 5k 10k thd+n (%) frequency (hz) r load = 32 v load = 0.707v rms v dd = 3.6v v dd = 3.0v v dd = 4v v dd = 4.6v 0.024 0.032 0.025 0.026 0.027 0.028 0.029 0.030 0.031 20 20k 50 100 200 500 1k 2k 5k 10k thd+n (%) frequency (hz) r load = 32 p load = 5mw v dd = 2.7v v dd = 3.6v v dd = 4.0v v dd = 4.6v v dd = 3.3v 0.010 0.070 0.015 0.020 0.025 0.030 0.035 0.040 0.045 0.050 0.055 0.060 0.065 20 20k 50 100 200 500 1k 2k 5k 10k thd+n (%) frequency (hz) 1.5v p-p 2.5v p-p 510mv p-p 1.13v p-p peak-to-peak voltages at load 2v p-p r load = 32 v dd = 3v 1v p-p 0 0.065 0.005 0.010 0.015 0.020 0.025 0.030 0.035 0.040 0.045 0.050 0.055 0.060 0.5 2.5 1.0 1.5 2.0 thd+n (%) output voltage (v p-p ) v dd = 3v r load = 32 freq = 1khz 0 0.09 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0 30 510152025 thd+n (%) output power (mw) v dd = 3v r load = 32 freq = 1khz -180 -60 -170 -160 -150 -140 -130 -120 -110 -100 -90 -80 -70 20 20k 50 100 200 500 1k 2k 5k 10k frequency (hz) crosstalk (db) v dd = 3v r load = 32 v signal = 0.707v rms isl54217
17 fn6817.4 june 17, 2010 figure 26. off-isolation audio switch vs loading vs frequency typical performance curves t a = +25c, unless ot herwise specified (continued) -130 -60 -125 -120 -115 -110 -105 -100 -95 -90 -85 -80 -75 -70 -65 20 20k 50 100 200 500 1k 2k 5k 10k off- isolation (db) frequency (hz) r l = 32 r l = 1k r l = 20k audio mute mode v dd = 3.3v v signal = 0.707v rms isl54217
18 fn6817.4 june 17, 2010 figure 27. eye pattern: 480mbps with usb switches in the signal path typical performance curves t a = +25c, unless ot herwise specified (continued) time scale (0.2ns/div) voltage scale (0.1v/div) v dd = 2.7v usb near end mask isl54217
19 fn6817.4 june 17, 2010 figure 28. eye pattern: 480mbps with usb switches in the signal path typical performance curves t a = +25c, unless ot herwise specified (continued) time scale (0.2ns/div) voltage scale (0.1v/div) v dd = 2.7v far end mask isl54217
20 fn6817.4 june 17, 2010 figure 29. eye pattern: 12mbps usb signal with usb switches in the signal path figure 30. 32 ac coupled click/pop reduction figure 31. 1k ac coupled click/pop reduction typical performance curves t a = +25c, unless ot herwise specified (continued) time scale (10ns/div) voltage scale (0.5v/div) v dd = 2.7v time (s) 100ms/div voltage (v) c1, c0 2v/div rin 200mv/div rout 50mv/div vdd/2 2v/div time (s) 100ms/div voltage (v) c1, c0 2v/div lin 200mv/div lout 50mv/div vdd/2 2v/div isl54217
21 fn6817.4 june 17, 2010 figure 32. power-up/power-down click and pop transient figure 33. frequency response figure 34. off-isolation usb switches figure 35. off-isolation audio switches die characteristics substrate and tqfn thermal pad potential (powered up): gnd transistor count 837 process submicron cmos typical performance curves t a = +25c, unless ot herwise specified (continued) time (s) 200ms/div voltage (v) 1v/div v dd v out c1 = c0 = 0v v in = 1.5v or 0v 10mv/div -5 -4 -3 -2 -1 0 1 frequency (hz) normalized gain (db) 1m 10m 100m 1g v in = 0.2v p-p to 2v p-p r l = 50 usb switch frequency (hz) normalized gain (db) 0.001 0.01 0.10 1m 10m 100m 500m -140 -120 -100 -80 -60 -40 -20 v in = 0.2v p-p to 2v p-p r l = 50 -130 -110 -90 -70 -50 -30 -10 frequency (hz) normalized gain (db) v in = 0.2v p-p to 2v p-p r l = 50 0.001 0.01 0.10 1m 10m 100m 500m isl54217
22 intersil products are manufactured, assembled and tested utilizing iso9000 qu ality systems as noted in the quality certifications found 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, th e reader is cautioned to verify that data sheets are current before placing orders. information furnished by intersil is believed to be accura te and reliable. however, no re sponsibility is assumed by inte rsil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which ma y result from its use. no licen se is granted by implication o r otherwise under any patent or patent rights of intersil or its subsidiaries. for information regarding intersil corporation and its products, see www.intersil.com fn6817.4 june 17, 2010 for additional products, see www.intersil.com/product_tree products intersil corporation is a leader in the design and manuf acture of high-performance analog semiconductors. the company's products address some of the industry's fastest growing markets, such as, flat panel displays, cell phones, handheld products, and notebooks. intersil's product families address power management and analog signal processing functions. go to www.intersil.com/products for a complete list of intersil product families. *for a complete listing of applications, related documentat ion and related parts, please see the respective device information page on intersil.com: isl54217 to report errors or suggestions for this datasheet, please go to www.intersil.com/askourstaff fits are available from our website at http://rel.intersil.com/reports/search.php revision history date revision change 4/28/10 fn6817.4 on page 2 , added seperate pin conf iguration diagrams for the tqfn and tqfn parts. on page 6, changed ?positive supply current, idd? max for ?(all off mode)?,?(usb1 mode)?, ?(usb2 mode)?, and ?(mute mode )? for 25c from:8a, to 10a. on page 6, changed ?power off comx current, icomx? current limi t for 25c from:1a, to:4a. converted to new intersil template. changes include: added note 5 to ?ordering information? on page 3. on page 3 in ?pin descriptions?, updated to show the thermal pad. ?absolute maximum ratings? on page 4, added latch-up level. added ?products? on page 22. added ?revision history? on page 22. 5/4/09 fn6817.3 on page 6, under parameter ?power of f d+/d- current, ixd+, ixd-?, changed units from "na" to "a" 4/1/09 fn6817.2 ?absolute maximum ratings? on page 4, changed c0,c1... from "-0.3 to (vdd) + 0.3v" to "- 0.3v to 5.5v" ?power off comx current, icomx? on page 6 max limit changed from "100na" to "1a" ?power off logic current, ic0, ic1? on page 6 added typ "11a", delete d max limit of "550na" ?power off d+/d- current, ixd+, ixd-? on pa ge 6, added typ "5a", deleted max limit of "500na" under - ?digital input characteristics? on page 6 for ?c0, c1 voltage high, vc0h, vc1h? paramete r with test conditions of vdd = 2.7v to 3.6v, full temp range; added a max spec of 5.25v added ?logic control? on page 12. 2/27/09 fn6817.1 removed off_isolation left audio switch vs loading curve (was figure 26) 12/11/08 fn6817.0 initial release isl54217
23 fn6817.4 june 17, 2010 package outline drawing l12.3x3a 12 lead thin quad flat no lead plastic package rev 0, 09/07 located within the zone indicated. the pin #1 indentifier may be unless otherwise specified, tolerance : decimal 0.05 tiebar shown (if present) is a non-functional feature. the configuration of the pin #1 identifier is optional, but must be between 0.18mm and 0.30mm from the terminal tip. dimension b applies to the metallized terminal and is measured dimensions in ( ) for reference only. dimensioning and tolerancing conform to amse y14.5m-1994. 6. either a mold or mark feature. 3. 5. 4. 2. dimensions are in millimeters. 1. notes: bottom view detail "x" side view typical recommended land pattern top view (4x) 0.15 index area pin 1 a 3.00 b 3.00 6 1 3 7 9 4 6 10 12 pin #1 index area 12x 0 . 4 0 . 1 b 0.10 ma c 4 6 0.25 +0.05 / -0.07 0 . 5 4x 1.45 bsc ( 2 . 8 typ ) ( 1.45 ) 0 . 25 0 . 50 0 . 6 0 . 75 c seating plane base plane 0.08 0.10 see detail "x" c c 0 . 00 min. 0 . 05 max. 0 . 2 ref c 5 isl54217
24 fn6817.4 june 17, 2010 isl54217 ultra thin quad flat no-lead plastic package (utqfn) 6 b e a d 0.10 c 2x index area 2 1 n nx (b) section "c-c" e cc 5 c l terminal tip (a1) l 0.10 c 2x c 0.05 c a 0.10 c a1 leads coplanarity 0.10 m c a b 0.05 m c pin #1 id 5 (datum b) (datum a) nx l nd ne 3 e nx b 12 bottom view side view top view l12.2.2x1.4a 12 lead ultra thin quad flat no-lead plastic package symbol millimeters notes min nominal max a 0.45 0.50 0.55 - a1 - - 0.05 - a3 0.127 ref - b 0.15 0.20 0.25 5 d 2.15 2.20 2.25 - e 1.35 1.40 1.45 - e 0.40 bsc - k0.20- - - l 0.35 0.40 0.45 - n122 nd 3 3 ne 3 3 0-124 rev. 0 12/06 notes: 1. dimensioning and tolerancing conform to asme y14.5-1994. 2. n is the number of terminals. 3. nd and ne refer to the number of terminals on d and e side, re- spectively. 4. all dimensions are in millimeters. angles are in degrees. 5. dimension b applies to the meta llized terminal and is measured between 0.15mm and 0.30mm from the terminal tip. 6. the configuration of the pin #1 identifier is optional, but must be located within the zone indicated. the pin #1 identifier may be ei- ther a mold or mark feature. 7. maximum package warpage is 0.05mm. 8. maximum allowable burrs is 0.076mm in all directions. 9. same as jedec mo-255uabd except: no lead-pull-back, "a" min dimension = 0.45 not 0.50mm "l" max dimension = 0.45 not 0.42mm. 10. for additional information, to assist with the pcb land pattern design effort, see intersil technical brief tb389. 10 2.30 0.40 0.45 (12x) 1.50 1 2 3 0.25 (12x) 0.40 typical recommended land pattern

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