WAS7222M usb high speed (480mbps), dpdt analog switch descriptions the WAS7222M is a high performance, double pole double throw (dpdt) cmos analog switch that operates from a single +2.3v to +4.5v power supply. the WAS7222M is designed for switching of high-speed usb2.0 signals in handset and consumer applications, such as cell phones, digital cameras, and notebooks with hubs or controllers with limited usb i/os. the WAS7222M 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 (480mbps). each switch is bi-directional and offers little attenuation of the high-speed signals at the outputs. its bandwidth is quite marginal to pass high-speed usb 2.0 differential signals (480mbps) with good signal integrity. the WAS7222M is featured with special circuitry on the d+/d-, which allows the device to withstand a vbus short to d+ or d- when the usb devices are either powered off or on. the sel/oe pin has overvoltage protection that allows voltages above vcc, up to 7.0v to be present on the pin without damage or disruption of operation of the part, regardless of the operating voltage. the WAS7222M is also featured with smart circuitry to minimize vcc leakage current even when sel/oe control voltage is lower than vcc supply voltage. in other word, there is no need of additional device to shift sel/oe level to be the same as that of vcc in real application. the WAS7222M is available in msop-10l package. standard products are pb-free and halogen-free. applications cell phones mid router other electronics equipments msop-10l pin configuration (top view) 7222 = device code yy = year ww = week marking order information device package shipping WAS7222M-10/tr msop-10l 3000/reel&tape features supply voltage : 2.3 ~ 4.5v -3db bandwidth : 550mhz @ c l =5pf off isolation : -36db @ 250mhz crosstalk : -47db @ 250mhz low quiescent current : <1ua 1 2 3 4 5 10 9 8 7 6 sel d1+ d2+ d+ gnd v cc oe d1- d2- d- 7222 yyww 1 of 8 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
pin descriptions pin number symbol descriptions 1 sel switch select pin, digital logic low or high. 2 d1+ port a data 1 terminal, normally closed 3 d2+ port a data 2 terminal, normally open 4 d+ port a common data terminal, connect to d1+ or d2+ according to sel logic 5 gnd ground 6 d- port b common data terminal, connect to d1- or d2- according to sel logic 7 d2- port b data 2 terminal, normally open 8 d1- port b data 1 terminal, normally closed 9 oe enable control, active low 10 v cc power supply function descriptions sel oe function x h bus switch disconnected l l d+ connect to d1+ and d- connect to d1- h l d+ connect to d2+ and d- connect to d2- logic symbol and typical applications logic symbol typical applications d+ d- d1+ d2+ d1- d2- sel oe control sel oe control d+ d- tx rx d+ / tx d- / rx microusb connector usb i/f uart i/f WAS7222M 2 of 8 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
absolute maximum ratings parameter symbol value unit supply voltage range vcc -0.5 ~ 6.5 v data input/output voltage range v data -0.5 ~ 6.5 v select input voltage range v sel -0.5 ~ 6.5 v continues output current i out 50 ma junction temperature range t j 150 o c lead temperature range t l 260 o c storage temperature range t stg -65 ~ 150 o c thermal resistance r ja 250 o c/w i/o to vcc, i/o to gnd 7000 v esd protection (hbm) i/o to i/o 5000 v recommend operating ratings parameter symbol value unit supply voltage range vcc 2.3 ~ 4.5 v data input/output voltage range v data 0.0 ~ vcc v select input voltage range v sel 0.0 ~ vcc v enable control input voltage range v oe 0.0 ~ vcc v operating temperature range t a -40 ~ 85 o c WAS7222M 3 of 8 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
electronics characteristics (ta=25 o c, vcc=4.5v, unless otherwise noted) parameter symbol conditions min. typ. max. unit vcc=3.0 4.5 1.7 v select and oe logic high level v ih vcc=2.3 3.0 1.4 vcc=3.0 4.5 0.6 v select and oe logic low level v il vcc=2.3 3.0 0.4 supply quiescent current i cc i out =0, v sel >1.5v or v sel <0.7v refer to figure1 1.0 ua select input leakage current i sel v sel =vcc 1.0 ua off state switch leakage current i off see figure 2 1.0 ua on state switch leakage current i on see figure 3 1.0 ua on-resistance r on vcc=3.0v, v data =0~0.4v, i out =8ma, see figure 4 5.0 7.5 on-resistance match r on vcc=3.0v, v data =0~0.4v, i out =8ma, see figure 4 0.15 0.20 on-resistance flatness r flat(on) vcc=3.0v, v data =0~1.0v, i out =8ma, see figure 4 1.8 2.2 propagation delay time t plh / t phl c l =10pf, r l =50 see figure 5 0.3 1.2 ns select input to switch on time t on c l =10pf, r l =50 see figure 6 75 120 ns select input to switch off time t off c l =10pf, r l =50 see figure 6 40 80 ns break-before-make time t bbm generated by design 0.5 ns r l =50, c l =5pf 550 -3db bandwidth bw r l =50, c l =0pf 800 mhz off isolation oirr r l =50, f=250mhz -36 db crosstalk xtalk r l =50, f=250mhz -47 db charge injection (select input to common i/o) qg c l =0.1nf, vcc=3.3v r g =0, v g =gnd 5 pc select pin input capacitance c in vcc=0v 5 pf d1n, d2n,dn off capacitance c off vcc=3.3v, oe=3.3v 5 pf d1n, d2n,dn on capacitance c on vcc=3.3v, oe=0v 6.5 pf WAS7222M 4 of 8 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
typical characteristics (ta=25 o c, vcc=4.5v, unless otherwise noted) bandwidth crosstalk off isolation eye diagram (480mbps) figure 1: supply current vs. logic level 0.00.51.01.52.02.53.03.54.0 -20 -10 0 10 20 30 40 50 supply current (ua) logic level (v) vcc=3.6v WAS7222M 5 of 8 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
test circuit figure 2: off state switch leakage current figure 4: on-resistance figure 3: on state switch leakage current figure 5: propagation delay time figure 6: select input to switch on/off time dn v in d1n or d2n v v o ron=v/io vcc gnd io t on t off sel input d2n output vcc d2n dn sel v in =vcc d1n cl rl cl rl t on t off d1n output tplh tphl data input data output vcc dn sel d1n or d2n cl rl vil or vih WAS7222M 6 of 8 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
bandwidth (bw) off isolation (oirr) crosstalk (xtalk) vcc d2n dn sel d1n rl vih network analyzer WAS7222M 7 of 8 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
package outline dimensions msop-10l dimension in millimeters symbol min. max. a 0.820 1.100 a1 0.020 0.150 a2 0.750 0.950 b 0.180 0.280 c 0.090 0.230 d 2.900 3.100 e 0.50(bsc) e 2.900 3.100 e1 4.750 5.050 l 0.400 0.800 0 e 6 e WAS7222M 8 of 8 4008-318-123 sales@twtysemi.com http://www.twtysemi.com product specification
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