26 oct 2006 ? ver. 1.1 preliminary UIC4102CP usb 1.1 active extension cable 1 description this device is an extension cable bet ween usb device an d host (computer) with embedded into connector ?intelligent? integrated circ uits on both sides of the cable. the usb cable with t he chip inside is not a pass ive extension cable. it is an active device. the usb sign als going in and out of th is extension cable in both directions are buffered to assure signal quality. unlike passive usb cables the ic prevents signal degradation. the embedded ?intelligent? integrated circuit cleans, amplifies usb signal and watches usb 1.1 protocol. its control state machine enables and disables usb an d cable transmitters inside the chip depending on usb signals. features ? compliant with usb 1.1 specification; ? provides support for any full-speed (1 2 mb/s) or low-spee d (1.5 mb/s) usb device; ? allows a usb device to have it s cable length extended up to 30 meters ; ? embedded usb 1.1 transceive rs prevents signal loss; ? low cost in comparison with extension of cable using hubs; ? power (vcc) and ground (g nd) wire size: 20 awg; ? usb signal lines (dp and dm) wire si ze: 28 awg, stranded-twisted pair, 90 ohm characteristic impedance; ? downstream connector: female, type ?a?, u sb approved connector; ? upstream connector: male, ty pe ?a?, usb approved connector; free datasheet http:///
26 oct 2006 ? ver. 1.1 preliminary UIC4102CP usb 1.1 active extension cable 2 compatibility the UIC4102CP complie s with usb 1.1 specificatio ns governing the design of full-speed and low-speed us b devices. however, unique ics does not guarantee that all full spe ed usb devices are compatible with the UIC4102CP. some low power low-speed usb devices can work with cable up 100 meters. applications ? web-camera ? surveillance camera ? printer ? scanner ? mice ? keyboard ? etc. table 1. recommended operating conditions limits parameter name min typ max condition supply power voltage, v vcc 3,0 3,3 3,6 dc input voltage range, v v i 0 - 3,6 dc output voltage range, v v o 0 - vcc operating ambient temperature range in free air, c t amb -40 - +85 esd protection, all pins, v 2000 free datasheet http:///
26 oct 2006 ? ver. 1.1 preliminary UIC4102CP usb 1.1 active extension cable 3 table 2. UIC4102CP characteristics limits parameter name min typ max condition cable signal characteristics max supply current drawn, ma isupply - 20 26 temp = 27 max cable voltage drop, v - - 0.09 temp = 27 cable data signaling high, mv v csh 460 - 550 cable data signaling low, mv v csl -10 - 10 cable idle level, mv v cil -10 - 10 cable chip signal delay, ns t cd - 13.5 - cable length, m c l 30 dp, dm input levels input high threshold, v vih 2,0 - - input low threshold, v vil - - 0,8 differential input sensitivity, v v di 0.2 - - |(dp) ? (dm)| differential common mode range, v v cm 0.8 - 2.5 includes v di range single ended receiver threshold, v v se 0.8 - 2.0 dp, dm output levels output high voltage, v voh 2,4 - - ioh < 6ma output low voltage, v vol - - 0,4 iol < 6ma leakage current hi-z state data line leakage current, ua i lo - - 10 0v < v in < 3.3v capacitance usb 1.1 transceiver capacitance, pf c in - - 20 pin to gnd output resistance driver output resistance, z drv 28 - 44 steady state drive free datasheet http:///
26 oct 2006 ? ver. 1.1 preliminary UIC4102CP usb 1.1 active extension cable 4 pin configuration xo xi gnd dp dm dplus v250 vcc gnd 87 9 10 11 12 13 14 1 2 3 4 5 6 port_mode dminus nc vcc vcc UIC4102CP free datasheet http:///
26 oct 2006 ? ver. 1.1 preliminary UIC4102CP usb 1.1 active extension cable 5 table 3. usb 1.1 active extension cable embedded ?intelligent? ic pin description pin number name direction description 1 vcc power chip power, 3.3v 2 port_mode input externally assigns the embedded ic function. 0: downstream port (on device cable side); 3.3v: upstream port (on host cable side) 3 dminus input/output data minus pin on cable side, corresponding to dm pin on usb side 4 dplus input/output data plus pin on cable side, corresponding to dp pin on usb side 5 gnd power chip ground 6 v250 analog dplus, dminus low threshold 7 nc - must be not connected 8 xo output oscillator output . connect to external 24 mhz crystal resonator 9 xi input oscillator input . connect to external 24 mhz crystal resonator 10 gnd power chip ground 11 dp input/output usb data pin data + 12 dm input/output usb data pin data - 13 vcc power chip power, 3.3v 14 vcc power chip power, 3.3v free datasheet http:///
26 oct 2006 ? ver. 1.1 preliminary UIC4102CP usb 1.1 active extension cable 6 cable embedded ic functional block diagram * cat5e/cat6 (shielded cables) or usb2.0 cable 24 mhz control state machine cable xmit usb 1.1 rcv cable rcv usb 1.1 xmit crystal oscillator dminus dplus dm dp poweronreset clk 24 mhz control state machine usb 1.1 xmit usb 1.1 rcv cable rcv cable xmit crystal oscillator poweronreset clk usb 1.1 device host (computer) cable* free datasheet http:///
26 oct 2006 ? ver. 1.1 preliminary UIC4102CP usb 1.1 active extension cable 7 typical external component connections for cat5e/cat6 interconnection cable free datasheet http:///
26 oct 2006 ? ver. 1.1 preliminary UIC4102CP usb 1.1 active extension cable 8 cable outer shield termination method package outline 14-pin sop package free datasheet http:///
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