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april 2012 ?2005 fairchild semiconductor corporation www.fairchildsemi.com fsusb20 ? rev. 1.0.3 fsusb20 ? low-power, 1-port, high-speed usb 2.0 (480mbps) switch fsusb20 ? low-power, 1-port, high-speed usb (480mbps) switch features ? -30db off isolation: 250mhz ? -30db non-adjacent channel crosstalk: 250mhz ? on resistance: 4.5 typical (r on ) ? -3db bandwidth: >720mhz ? low-power consumption: 1a maximum ? control input: lvttl compatible ? bi-directional operation ? usb high-speed and full-speed signaling capability applications ? cell phones, pdas, digital cameras, notebook computers description fsusb20 is a low-power, high-bandwidth switch specially designed for switching high-speed usb 2.0 signals in handset and consumer applications; such as cell phone, digital camera, and notebook with hubs or controllers of limited usb i/o. the wide bandwidth (>720mhz) allows signals to pass with minimum edge and phase distortion. s uperior channel-to-channel crosstalk results in minimal in terference. it is compatible with the high-speed usb 2.0 standard. . ordering information part number operating temperature range package packing method fsusb20l10x -40 to +85c 10-lead micropak?, 1.6 x 2.1mm tape and reel fsusb20bqx -40 to +85c 14-terminal depopulation quad very-thin flat pack no lead (dqfn), jedec mo-241, 2.5 x 3.0mm tube fsusb20mux -40 to +85c 10-lead molded small outline pa ckage (msop), jedec mo-187, 3.0mm wide tape and reel
? 2005 fairchild semiconductor corporation www.fairchildsemi.com fsusb20 ? rev. 1.0.3 2 fsusb20 ? low-power, 1-port, high-speed usb 2.0 (480mbps) switch connection diagrams figure 1. micropak? (top view) figure 2. analog symbol figure 3. dqfn (top through view) figure 4. msop (top through view) pin descriptions pin # micropak? / msop pin # dqfn pin names description 1 2 s select input 2, 3, 7, 8 3, 5, 10, 12 1b 1 , 1b 2 , 2b 2 , 2b 1 bus b 5 7 gnd ground 4, 6 6, 9 1a, 2a bus a 9 12 oe bus switch enable 10 14 v cc supply voltage truth table s oe function don?t care high disconnect low low a=b 1 high low a=b 2
? 2005 fairchild semiconductor corporation www.fairchildsemi.com fsusb20 ? rev. 1.0.3 3 fsusb20 ? low-power, 1-port, high-speed usb 2.0 (480mbps) switch absolute maximum ratings stresses exceeding the absolute maximum ratings may damage the device. the devic e may not function or be operable above the recommended operating c onditions and stressing the parts to these levels is not recommended. in addition, extended exposure to stre sses above the recommended operating conditi ons may affect device reliability. the absolute maximum ratings are stress ratings only. symbol parameter min. max. unit v cc supply voltage -0.5 4.6 v v s dc switch voltage -0.5 v cc + 0.05 v v in dc input voltage (1) -0.5 4.6 v i ik dc input diode current, v in <0v -50 ma i out dc output sink current 50 ma i cc / i gnd dc v cc / gnd current 100 ma t stg storage temperature range -65 +150 c esd human body model, jesd22-a114 all pins 7000 v i/o to gnd 7000 note : 1. the input and output negativ e voltage ratings may be exceeded if the i nput and output diode current ratings are observed. recommended operating conditions the recommended operating conditions table defines the conditions for actual device oper ation. recommended operating conditions are specified to ens ure optimal performance to the datasheet specificat ions. fairchild does not recommend exceeding them or designing to absolute maximum ratings. symbol parameter min. max. unit v cc power supply operating 3.0 3.6 v v in input voltage 0 v cc v v out output voltage 0 v cc v t r , t f input rise and fall time switch control input (2) 0 5 ns/v switch i/o 0 dc t a operating temperature, free air -40 +85 c note : 2. unused control inputs must be held high or low. they may not float.
? 2005 fairchild semiconductor corporation www.fairchildsemi.com fsusb20 ? rev. 1.0.3 4 fsusb20 ? low-power, 1-port, high-speed usb 2.0 (480mbps) switch dc electrical characteristics typical values are at v cc = 3.0v and t a = 25c. symbol parameter condition v cc (v) t a =-40 to +85c unit min. typ. max. v ik clamp diode voltage i in = -18ma 3.0 -1.2 v v ih high-level input voltage 3.0 to 3.6 2.0 v v il low-level input voltage 3.0 to 3.6 0.8 v i in input leakage current 0 v in 3.6v 3.6 1.0 a i off off-state leakage current 0 a, b v cc 3.6 1.0 a r on switch on resistance (3) v in = 0.8v, i on = 8ma 3.0 5 7 v in = 3.0v, i on = 8ma 3.0 4.5 6.5 r on delta r on v in = 0.8v, v in = 0v - 1.5v, i on = 8ma 3.0 0.3 r flat(on) on resistance flatness (4) i out = 8ma 3.0 1 i cc quiescent supply current v in = v cc or gnd, i out = 0 3.6 1 a notes : 3. measured by the voltage drop between the a and b pins at the indi cated current through the switch. on resistance is determined by the lower of the voltages on the a or b pins. 4. flatness is defines as the di fference between the maximum and the mi nimum value on resistance over the specified range of conditions.
? 2005 fairchild semiconductor corporation www.fairchildsemi.com fsusb20 ? rev. 1.0.3 5 fsusb20 ? low-power, 1-port, high-speed usb 2.0 (480mbps) switch ac electrical characteristics typical values are at v cc = 3.3v and t a = 25c. symbol parameter condition v cc (v) typ. max. unit figure t on turn-on time s-to-bus b v b = 0.8v 3.0 to 3.6 4.8 7.0 ns figure 9 figure 10 t off turn-off time s-to-bus b v b = 0.8v 3.0 to 3.6 2.2 4.0 ns figure 9 figure 10 t pd propagation delay c l = 10pf 3.0 to 3.6 0.25 ns figure 14 o irr non-adjacent off isolation f = 250mhz, r l = 50 3.0 to 3.6 -26 db figure 11 x talk non-adjacent channel crosstalk f = 250mhz, r l = 50 3.0 to 3.6 -45 db figure 12 bw -3db bandwidth r l = 50 , c l = 0pf 3.0 to 3.6 750 mhz figure 13 r l = 50 , c l = 5pf 435 usb related ac electrical characteristics typical values are at v cc = 3.3v and t a = 25c. symbol parameter condition v cc (v) typ. unit figure t sk(o) channel-to channel skew c l = 10pf 3.0 to 3.6 0.051 ns figure 14 figure 16 t sk(p) skew of opposite transition of the same output c l = 10pf 3.0 to 3.6 0.020 ns figure 14 figure 16 t j total jitter r l = 50 , c l = 10pf t r = t f = 750ps at 480mps 3.0 to 3.6 0.170 ns capacitance typical values are at v cc = 3.3v and t a = 25c. symbol parameter condition typ. unit c in control pin input capacitance v cc = 0v 2.5 pf c on a/b on capacitance v cc = 3.3v, /oe = 0v 12.0 pf c off port b off capacitance v cc and /oe = 3.3v 4.5 pf
? 2005 fairchild semiconductor corporation www.fairchildsemi.com fsusb20 ? rev. 1.0.3 6 fsusb20 ? low-power, 1-port, high-speed usb 2.0 (480mbps) switch performance characteristics freqency response -8 -7 -6 -5 -4 -3 -2 -1 0 1 10 100 1000 10000 frequency (mhz) gain (db) c l = 0pf, v cc = 3.3v frequency (mhz) freqency response 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 1 10 100 1000 off isolation (db) v bias = 0.5v, v cc = 3.3v figure 5. gain vs. frequency figure 6. off isolation frequency (mhz) freqency response 1 10 100 1000 v bias = 0.5v, v cc = 3.3v -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 crosstalk (db) 0.00 0.50 1.00 1.50 2.00 2.50 3.0 0 v b2 (v) 10.0 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 r on (ohms) 85c v b2 = 800.000mv r on = 5.402 -40c v b2 = 800.000mv r on = 3.561 25c v b2 = 800.000mv r on = 4.437 figure 7. crosstalk figure 8. r on
? 2005 fairchild semiconductor corporation www.fairchildsemi.com fsusb20 ? rev. 1.0.3 7 fsusb20 ? low-power, 1-port, high-speed usb 2.0 (480mbps) switch ac loadings and waveforms gnd nb 1 nb 2 v b + C gnd control a 10pf 50 soe notes: input driven by 50 source terminated in 50 . c l includes load and stray capacitance. input prr-1.0mhz, t w = 500ns. figure 9. ac test circuit 90% 10% 10% 90% 90% 90% 3.0v gnd v oh v ol t off t on t r = 2.5ns t f = 2.5ns 1.5v select input output 1.5v figure 10. ac waveforms s b 2 b 1 a 50 50 oe control network analyzer s b 1 a 50 100 100 oe control network analyzer figure 11. off isolation test figure 12. crosstalk test
? 2005 fairchild semiconductor corporation www.fairchildsemi.com fsusb20 ? rev. 1.0.3 8 fsusb20 ? low-power, 1-port, high-speed usb 2.0 (480mbps) switch ac loadings and waveforms s b a 50 oe control gnd network analyzer figure 13. bandwidth test input 400mv output 800mv v oh v ol t phl t plh figure 14. propagation delay input output 800m v 400mv v oh 50% 50% 50% 50% 0 v ol t phl t sk(p) = | t phl - t phl | t plh figure 15. pulse skew t sp(p) input output 1 output 2 800mv 400mv 50% 50% 50% 50% 50% 50% 0 t phl1 t phl2 t sk(o) = | t plh1 - t plh2 | or | t phl1 - t phl2 | t sk(o) t sk(o) t plh1 t plh2 figure 16. output skew t sk(o)
? 2005 fairchild semiconductor corporation www.fairchildsemi.com fsusb20 ? rev. 1.0.3 9 fsusb20 ? low-power, 1-port, high-speed usb 2.0 (480mbps) switch physical dimensions bottom view top view recommended land pattern side view 2x 2x notes: a. package conforms to jedec registration mo-255, variation uabd . b. dimensions are in millimeters. c. dimensions and tolerances per asme y14.5m, 1994. d. presence of center pad is package supplier dependent. if present it is not intended to be soldered and has a black oxide finish. e. drawing filename: mkt-mac10arev5. 0.10 c 0.10 c 0.10 cab 0.05 c pin1 ident is 2x longer than other lines a b c 0.35 0.25 9x 9x 14 9 6 0.25 0.15 10 5 0.50 0.56 1.62 0.05 0.00 0.05 c 0.55 max 0.05 c 1.60 2.10 (0.35) (0.25) 0.50 10x 10x (0.11) 1.12 1.62 keepout zone, no traces or vias allowed (0.20) (0.15) 0.35 0.25 0.35 0.25 detail a detail a 2x scale 0.35 0.25 0.65 0.55 d all features (0.36) (0.29) 0.56 figure 17. 10-lead micropak?, 1.6 x 2.1mm package drawings are provided as a servic e to customers considering fairchild co mponents. drawings may change in any manner without notice. please note the revision and/or date on the drawi ng and contact a fairchild semiconductor representative to ver ify or obtain the most recent revision. package specifications do not expand the terms of fairchild?s worldwide terms and conditions, specifically the warranty therein, which covers fairchild products. always visit fairchild semiconductor?s online pack aging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ for current tape and reel specif ications, visit fairchild semi conductor?s online packaging area: http://www.fairchildsemi.com/products/logic/pdf/micropak_tr.pdf .
? 2005 fairchild semiconductor corporation www.fairchildsemi.com fsusb20 ? rev. 1.0.3 10 fsusb20 ? low-power, 1-port, high-speed usb 2.0 (480mbps) switch physical dimensions figure 18. 14-terminal depopulation quad very-thin flat pack no lead (dqfn), je dec mo-241, 2.5 x 3.0mm package drawings are provided as a servic e to customers considering fairchild co mponents. drawings may change in any manner without notice. please note the revision and/or date on the drawi ng and contact a fairchild semiconductor representative to ver ify or obtain the most recent revision. package specifications do not expand the terms of fairchild?s worldwide terms and conditions, specifically the warranty therein, which covers fairchild products. always visit fairchild semiconductor?s online pack aging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ for current tape and reel specif ications, visit fairchild semi conductor?s online packaging area: http://www.fairchildsemi.com/ms/ms/ms-522.pdf .
? 2005 fairchild semiconductor corporation www.fairchildsemi.com fsusb20 ? rev. 1.0.3 11 fsusb20 ? low-power, 1-port, high-speed usb 2.0 (480mbps) switch physical dimensions figure 19. 10-lead molded small outline package (msop), jedec mo-187, 3.0mm wide package drawings are provided as a servic e to customers considering fairchild co mponents. drawings may change in any manner without notice. please note the revision and/or date on the drawi ng and contact a fairchild semiconductor representative to ver ify or obtain the most recent revision. package specifications do not expand the terms of fairchild?s worldwide terms and conditions, specifically the warranty therein, which covers fairchild products. always visit fairchild semiconductor?s online pack aging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ for current tape and reel specif ications, visit fairchild semi conductor?s online packaging area: http://www.fairchildsemi.com/products/analog/pdf/msop10_tr.pdf
? 2005 fairchild semiconductor corporation www.fairchildsemi.com fsusb20 ? rev. 1.0.3 12 fsusb20 ? low-power, 1-port, high-speed usb 2.0 (480mbps) switch

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