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SGM7222 high speed usb 2.0 (480mbps) dpdt analog switch general description the SGM7222 is a high-speed, low-power double-pole/ double-throw (dpdt) analog switch that operates from a single 1.8v to 4.3v power supply. SGM7222 is designed for the switching of high-speed usb 2.0 signals in handset and consumer applications, such as cell phones, digital cameras, and notebooks with hubs or controllers with limited usb i/os. the SGM7222 has low bit-to-bit skew and high channel-to-channel noise isolation, and is compatible with various standards, such as high-speed usb 2.0 (480 mbps). each switch is bidirectional and offers little or no attenuation of the high-speed signals at the outputs. its bandwidth is wide enough to pass high-speed usb 2.0 differential signals (480 mb/s) with good signal integrity. the SGM7222 contains special circuitry on the d+/d- pins which allows the device to withstand a v bus short to d+ or d- when the usb devices are either powered off or powered on. SGM7222 is available in green tqfn-1.81.4-10l, msop-10 and utqfn-1.8 1.4-10l packages. it operates over an ambient temperature range of -40 to +85 . applications route signals for usb 2.0 mp3 and other personal media players digital cameras and camcorders portable instrumentation set-top boxes pdas features ? r on is typically 4.5 ? at 3.0v ? low bit-to-bit skew: 50ps (typ) ? voltage operation: 1.8v to 4.3v ? fast switching times: t on 10ns t off 22ns ? low crosstalk: -41db at 250mhz ? power-off protection when v = 0v, d+/d- pins can tolerate up to 5.25v ? high off-isolation: -35db at 250mhz ? rail-to-rail input and output operation ? break-before-make switching ? extended industrial temperature range: -40 to +85 ? small packages: msop-10, tqfn-1.81.4-10l and utqfn-1.8 1.4-10l block diagram d+ hsd2+ hsd1+ d- hsd2- hsd1- logic s oe rev. b. 2 sg micro corp www.sg-micro.com
high speed usb 2.0 SGM7222 (480mbps) dpdt analog switch 2 sg micro corp www.sg-micro.com package/ordering information model pin- package specified temperature range ordering number package marking package option msop-10 -40 to +85 SGM7222yms10/tr SGM7222yms10 tape and reel, 3000 tqfn-1.81.4-10l -40 to +85 SGM7222ywq10/tr 7222 tape and reel, 3000 SGM7222 utqfn-1.81.4-10l -40 to +85 SGM7222yuwq10/tr 7222 tape and reel, 3000 absolute maximum ratings v + to gnd................................................................... 0v to 4.6v analog, digital voltage range .. .................. ...-0.3v to (v + ) + 0.3v continuous current hsdn or dn??.............................100ma peak current hsdn or dn??.......................................150ma operating temperature range .................. ..........-40 to +85 junction temperature....................................................... 150 storage temperature range.............................-65 to +150 lead temperature (soldering, 10s)...................................260 esd susceptibility hbm............... .................. ................. .................. ..............8000v mm......................................................................................400v note: stresses beyond those listed under ?absolute maximum ratings? may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the s pecifications is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. caution this integrated circuit can be damaged by esd if you don?t pay attention to esd protection. sgmicro recommends that all integrated circuits be handled with appropriate precautions. failure to observe proper handling and installation procedures can cause damage. esd damage can range from subtle performance degradation to complete device failure. precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. sgmicro reserves the right to make any change in circuit design, specification or other related things if necessary without notice at any time. please contact sgmicro sales office to get the latest datasheet.
high speed usb 2.0 SGM7222 (480mbps) dpdt analog switch 3 sg micro corp www.sg-micro.com pin configurations (top view) tqfn-1.81.4-10l/ utqfn-1.81.4-10l hsd2 + hsd1 + 1 2 5 4 3 6 7 8 9 10 d + gnd d- hsd2- hsd1- oe v + s d- oe 1 2 3 4 5 6 7 8 9 10 hsd1+ d+ hsd1- v + hsd2+ gnd s hsd2- msop-10 pin description tqfn-1.81.4-10l / utqfn-1.8 1.4-10l msop-10 name function 9 10 v + power supply 4 5 gnd ground 10 1 s select input 8 9 oe output enable 1, 2 2, 3 hsd1+ , hsd2+ 7, 6 8, 7 hsd1- , hsd2- 3, 5 4, 6 d+ , d- data ports function table oe s hsd1+ hsd1- hsd2+ hsd2- 0 0 on off 0 1 off on 1 off off note: switches shown for logic ?0? input
high speed usb 2.0 SGM7222 (480mbps) dpdt analog switch 4 sg micro corp www.sg-micro.com electrical characteristics (v + = +1.8v to +4.3v, gnd = 0v, v ih = +1.6v, v il = +0.5v, t a = -40 to +85 . typical values are at v + = +3.3v, t a = +25 , unless otherwise noted.) parameter symbol conditions temp min typ max units analog switch analog i/o voltage (hsd1+, hsd1-, hsd2+, hsd2-) v is -40 to +85 0 v + v +25 4.5 8.5 on-resistance r on v + = 3.0v, v is = 0v to 0.4v, i d = 8ma, test circuit 1 -40 to +85 9 ? +25 0.15 0.6 on-resistance match between channels ? r on v + = 3.0v, v is = 0v to 0.4v, i d = 8ma, test circuit 1 -40 to +85 1.6 ? +25 1.5 2.0 on-resistance flatness r flat(on) v + = 3.0v, v is = 0v to 1.0v, i d = 8ma, test circuit 1 -40 to +85 2.6 ? power off leakage current (d+, d-) i off v + = 0v, v d = 0v to 3.6v, v s , v oe = 0v or 3.6v -40 to +85 1 a increase in i + per control voltage i cct v + = 3.6v, v s or v oe = 2.6v -40 to +85 5 a source off leakage current i hsd2(off) i hsd1(off) v + = 3.6v, v is = 3.3v/0.3v, v d = 0.3v/ 3.3v -40 to +85 1 a channel on leakage current i hsd2(on) , i hsd1(on) v + = 3.6v, v is = 3.3v/0.3v, v d = 3.3v/0.3v or floating -40 to +85 1 a digital inputs input high voltage v ih -40 to +85 1.6 v input low voltage v il -40 to +85 0.5 v input leakage current i in v + = 3.0v, v s , v oe = 0v or v + -40 to +85 1 a dynamic characteristics turn-on time t on +25 10 ns turn-off time t off v is = 0.8v, r l = 50 ? , c l = 10pf, test circuit 2 +25 22 ns break-before-make time delay t d v is = 0.8v, r l = 50 ? , c l = 10pf, test circuit 3 +25 4 ns propagation delay t pd r l = 50 ? , c l = 10pf +25 0.3 ns off isolation o iso signal = 0dbm, r l = 50 ? , f = 250mhz, test circuit 4 +25 -35 db channel-to-channel crosstalk x talk signal = 0dbm, r l = 50 ? , f = 250mhz, test circuit 5 +25 -41 db -3db bandwidth bw signal = 0dbm, r l = 50 ? , c l = 5pf test circuit 6 +25 550 mhz channel-to-channel skew t skew r l = 50 ? , c l = 10pf +25 0.05 ns charge injection select input to common i/o q v g = gnd, c l = 1.0nf, r g = 0 ? , q = c l v out , test circuit 7 +25 11 pc hsd+, hsd-, d+, d- on capacitance c on +25 6.5 pf power requirements power supply range v + -40 to +85 1.8 4.3 v power supply current i + v + = 3.0v, v s , v oe = 0v or v + -40 to +85 1 a
high speed usb 2.0 SGM7222 (480mbps) dpdt analog switch 5 sg micro corp www.sg-micro.com typical performance characteristics re sp onse vs. frequency -140 -120 -100 -80 -60 -40 -20 0 20 0.1 1 10 10 0 100 0 frequency (m hz) on re sponse (db) v + = +3v t a = + 25 crosst alk response vs. frequency -140 -120 -100 -80 -60 -40 -20 0 20 0 .1 1 10 100 100 0 frequency (mhz) on resp onse (db) v + = +3v t a = +25 off-isolation
high speed usb 2.0 SGM7222 (480mbps) dpdt analog switch 6 sg micro corp www.sg-micro.com test circuits v1 8ma r on = v1/8ma hsdn dn gnd test circuit 1. on resistance v + v ol t on t off 50% 50% 90% 90% v oh v out v + dn gnd v s r l c l hsd2n hsd1n 0 v s test circuit 2. switching times (t on , t off ) v + dn gnd r l c l v out hsd2n v s hsd1n v s v + 50% 90% of v oh 0 0 v out t d test circuit 3. break-before-make time (t d )
high speed usb 2.0 SGM7222 (480mbps) dpdt analog switch 7 sg micro corp www.sg-micro.com test circuits (cont.) v out hsd2n dn gnd s v + source signal 0.1f v + hsd1n r l test circuit 4. off isolation channel to channel crosstalk = -20 log v hsdn v out hsdn dn v + gnd 0.1f v + source signal hsdn dn r l n.c. v out r l s test circuit 5. channel-to-channel crosstalk
high speed usb 2.0 SGM7222 (480mbps) dpdt analog switch 8 sg micro corp www.sg-micro.com test circuits (cont.) v out hsdn dn gnd s 0.1f v + source signal v + r l c l test circuit 6. -3db bandwidth dn gnd s c l hsd2n hsd1n v out r g v g v + v out q = v out c l out 0 v s test circuit 7. charge injection (q)
high speed usb 2.0 SGM7222 (480mbps) dpdt analog switch 9 sg micro corp www.sg-micro.com application notes meeting usb 2.0 v bus short requirements in section 7.1.1 of the usb 2.0 specification, it notes that usb devices must be able to withstand a v bus short to d+ or d- when the usb devices is either powered off or powered on the SGM7222 can be successfully configured to meet both these requirements. power-off protection for a v bus short circuit the switch is expected to withstand such a condition for at least 24 hours. the SGM7222 has specially designed circuitry which prevents unintended signal bleed through as well as guaranteed system reliability during a power-down, over-voltage condition. the protection has been added to the common pins (d+, d-). power-on protection the usb 2.0 specification also notes that the usb device should be capable of withstanding a v bus short during transmission of data. this modification works by limiting current flow back into the v+ rail during the over-voltage event so current remains within the safe operating range. in this application, the switch passes the full 5.25v input signal through to the selected output, while maintaining specified off isolation on the un-selected pins.
high speed usb 2.0 SGM7222 (480mbps) dpdt analog switch 10 sg micro corp www.sg-micro.com SGM7222 usb2.0 signal qu ality compliance tests figures 1 and 2 show the test results for usb eye diagram tests. a summary of the usb tests is provided in table 1. the SGM7222 passes the high speed signal quality, eye diagram and jitter tests. figure 1. waveform plot figure 2. high speed signal qua lity eye diagram test (v+ = 3.3v)
high speed usb 2.0 SGM7222 (480mbps) dpdt analog switch 11 sg micro corp www.sg-micro.com SGM7222 usb2.0 signal qualit y compliance tests (cont.) table 1. summary of the usb 2.0 signal quality tests results measurement name min max mean pk-pk standard deviation rms population status eye diagram test - - - - - - - pass signal rate 469.9358 mbps 493.4413 mbps 479.9700 mbps 0.0000 bps 5.586580 mbps 480.4200 mbps 512 pass eop width - - 16.58804ns - - - 1 pass eop width (bits) - - 7.961762 - - - 1 pass falling edge rate 1.064231 kv/ s 1.228955 kv/ s 1.143136 kv/ s 164.7235 v/ s 35.43800 v/ s 1.143680 kv/ s 107 pass rising edge rate 1.063269 kv/ s 1.227966 kv/ s 1.136558 kv/ s 164.6970 v/ s 31.49494 v/ s 1.136990 kv/ s 108 pass additional information: consecutive jitter range: -82.97ps to 72.87ps rms jitter 35.08ps kj paired jitter range: -25.05ps to 23.05ps rms jitter 9.259ps jk paired jitter range: -20.96ps to 30.12ps rms jitter 9.734ps ? rising edge rate: 1.136558kv/ s (equivalent rise time = 563.10ps) ? falling edge rate: 1.143136kv/ s (equivalent fall time = 559.86ps)
high speed usb 2.0 SGM7222 (480mbps) dpdt analog switch 12 sg micro corp www.sg-micro.com package outline dimensions msop-10 b e1 e e d a1 l c a a2 4.8 0.5 0.3 1.02 recommended land pattern (unit: mm) dimensions in millimeters dimensions in inches symbol min max min max a 0.820 1.100 0.032 0.043 a1 0.020 0.150 0.001 0.006 a2 0.750 0.950 0.030 0.037 b 0.180 0.280 0.007 0.011 c 0.090 0.230 0.004 0.009 d 2.900 3.100 0.114 0.122 e 2.900 3.100 0.114 0.122 e1 4.750 5.050 0.187 0.199 e 0.500 bsc 0.020 bsc l 0.400 0.800 0.016 0.031 0 6 0 6
high speed usb 2.0 SGM7222 (480mbps) dpdt analog switch 13 sg micro corp www.sg-micro.com package outline dimensions tqfn-1.81.4-10l recommended land pattern 0.663 1.700 0.563 2.100 0.40 0.20 0.100 0.050 pin #1 identification chamfer 0.350 45 0.400 0.050 0.800 ref ( 9) pin #1 dot by marking 0.000-0.050 0.203 ref 0.750 0.050 0.500 0.050 0.500 0.050 0.200 0.050 0.400 typ 1.400 0.050 1.800 0.050 side view bottom view top view 0.225 note: all linear dimensions are in millimeters.
high speed usb 2.0 SGM7222 (480mbps) dpdt analog switch 14 sg micro corp www.sg-micro.com package outline dimensions utqfn-1.81.4-10l side view 0.550 0.050 0.152 ref 0.000-0.050 pin #1 identification chamfer 0.100 45 0.400 0.050 0.800 ref ( 9) pin #1 dot by marking 0.500 0.050 0.400 typ 1.400 0.050 1.800 0.050 bottom view top view 0.225 0.20 0.40 2.100 0.563 1.700 0.663 recommended land pattern 0.200 0.050 note: all linear dimensions are in millimeters.
high speed usb 2.0 SGM7222 (480mbps) dpdt analog switch 15 sg micro corp www.sg-micro.com tape and reel information note: the picture is only for reference. please make the object as the standard. key parameter list of tape and reel package type reel diameter reel width w1 (mm) a0 (mm) b0 (mm) k0 (mm) p0 (mm) p1 (mm) p2 (mm) w (mm) pin1 quadrant msop-10 13 12.4 5.2 3.3 1.2 4.0 8.0 2.0 12.0 q1 tqfn-1.81.4-10l 7 9.0 1.75 2.10 1.00 4.00 4.00 2.00 8.00 q1 utqfn-1.81.4-10l 7 9.0 1.75 2.10 0.70 4.00 4.00 2.00 8.00 q1 reel width (w1) reel diameter reel dimensions tape dimensions direction of feed p2 p0 w p1 a0 k0 b0 q1 q2 q4 q3 q3 q4 q2 q1 q3 q4 q2 q1
high speed usb 2.0 SGM7222 (480mbps) dpdt analog switch 16 sg micro corp www.sg-micro.com carton box dimensions note: the picture is only for reference. please make the object as the standard. key parameter list of carton box reel type length (mm) width (mm) height (mm) pizza/carton 7 (option) 368 227 224 8 7 442 410 224 18 13 386 280 370 5

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