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| PI3USB102 USB 2.0 High-Speed (480 Mbps) Signal Switch Targeted for Battery Powered Applications Features * USB 2.0 compliant (high speed and full speed) * RON is 5.5 typical @ VCC = 3.0V * Low bit-to-bit skew * Low Crosstalk: -35dB @ 480 Mbps * Off Isolation: -40dB @ 480 Mbps * Near-Zero propagation delay: 250ps * Switching speed: 9ns * Channel On Capacitance: 5.5pF * VCC Operating Range: 2.7V to 4.2V 10% * Data pin I/O ESD: 8kV contact * 1,000 MHz Bandwidth * I/O pins have over-voltage protection and can tolerate a short to Vbus * Packaging (Pb-free & Green): 10-contact TQFN (ZL10) Description The PI3USB102 is a single differential channel 2:1 multiplexer/ demultiplexer USB 2.0 Switch. Industry leading advantages include a propagation delay of less than 250ps, resulting from its low channel resistance and I/O capacitance. The device multiplexes differential outputs from a USB Host device to one of two corresponding outputs. The switch is bidirectional and offers little or no attenuation of the high-speed signals at the outputs. It is designed for low bit-to-bit skew, high channel-to-channel noise isolation and is compatible with various standards, such as High Speed USB 2.0 (480 Mb/s). The PI3USB102 offers overvoltage protection per the USB 2.0 specification. With the chip powered on or off, all I/O pins can withstand a short to Vbus (5V +/-10%). This feature can only be offered if a 100-ohm pull up resistor is placed between VCC pin to the power supply. Application * Routes signals for USB 2.0 * Hand-held devices Block Diagram OE Y+ YM+ Pin Description SEL VCC 9 MD+ DY+ 10 1 2 3 Y- OE 8 7 6 D+ D5 M+ SEL 4 M- Truth Table SEL X L H OE H L L Y+ Hi-Z M+ D+ YHi-Z MD- GND 07-0095 1 P-0.6 03/27/07 PI3USB102 USB 2.0 High-Speed (480 Mbps) Signal Switch Targeted for Battery Powered Applications Maximum Ratings (Above which useful life may be impaired. For user guidelines, not tested.) Storage Temperature ......................................................-65C to +150C Supply Voltage to Ground Potential .................................-0.5V to +4.6V DC Input Voltage ..................................................... -0.5V to VCC +0.5V DC Output Current ........................................................................120mA Power Dissipation .............................................................................0.5W Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. DC Electrical Characteristics for USB 2.0 Switching over Operating Range (TA = -40C to +85C, VCC = 3.0 - 4.4V) Paramenter VIH VIL VIK IIH IIL RON RFLAT(ON) RON Description Input HIGH Voltage Input LOW Voltage Clamp Diode Voltage Input HIGH Current Input LOW Current Switch On-Resistance(3) On-Resistance Flatness(3) On-Resistance match from center ports to any other port(3) Test Conditions(1) Guaranteed HIGH level VCC = 4.2V VCC = 3.3V Min. 1.8 1.6 0.8 -1.2 5 5 5.5 1.5 0.9 2.0 6.0 uA V Typ.(2) Max. Units Guaranteed HIGH level VCC = Max., IIK = -18mA VCC = Max., VIH = VCC VCC = Max., VIL = GND VCC = Min., -0.4V Vinput 1.0V, ION = -40mA VCC = Min., -0.4V Vinput 1.0V, ION = -40mA VCC = Min., -0.4V Vinput 1.0V, ION = -40mA Notes: 1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. VCC = 3.0 - 4.4V, TA = 25C ambient and maximum loading. 3. Measured by the voltage drop between D and Dn pin at indicated current through the Switch On-Resistance is determined by the lower of the voltages on the two (D, Dn) pins. Power Supply Characteristics (VCC = 3.0 - 4.4V) Parameters ICC Description Quiescent Power Supply Current Test Conditions(1) VCC = Max., VSEL = GND or VCC Min. Typ. Max. 50 Units nA Notes: 1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 07-0095 2 P-0.6 03/27/07 PI3USB102 USB 2.0 High-Speed (480 Mbps) Signal Switch Targeted for Battery Powered Applications Capacitance (TA = 25C, f = 1MHz) Parameters(3) CIN COFF CON Description Input Capacitance Port I Capacitance, Switch OFF Switch Capacitance, Switch ON VSEL = 0V Test Conditions(1) Typ.(2) 3.6 3.0 5.5 pF Max. Units Dynamic Electrical Characteristics Over the Operating Range Parameters XTALK OIRR BW BW Description Crosstalk OFF Isolation -3dB Bandwidth -0.5dB Bandwidth Test Conditions RL = 50, f = 240 MHz RL = 50 RL = 50 Min. Typ.(2) -35 -40 1,000 260 Max. Units dB MHz MHz Notes: 1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 3.3V, TA = 25C ambient and maximum loading. 3. This parameter is determined by device characterization but is not production tested. Switching Characteristics Parameters tPD tPZH, tPZL tPHZ, tPLZ tSKC-C tSKb-b Propagation Delay(2,3) See Test Circuit for Electrical Characteristics 0.5 0.5 3.5 7.5 Description Line Enable Time - SEL, OE to D(+/-), M(+/-) Line Disable Time - SEL, OE to D(+/-), M(+/-) Output skew, channel-to-channel(2) Output skew, bit-to-bit (opposite transition of the same output (tPHL-tPLH)(2) Test Conditions (1) Min. Typ. 0.25 15.0 9.0 14 20 ps ns Max. Units Notes: 1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Guaranteed by design. 3. The switch contributes no propagational delay other than the RC delay of the On-Resistance of the switch and the load capacitance. The time constant for the switch alone is of the order of 0.25ns for 10pF load. Since this time constant is much smaller than the rise/fall times of typical driving signals, it adds very little propagational delay to the system. Propagational delay of the switch when used in a system is determined by the driving circuit on the driving side of the switch and its interactions with the load on the driven side. 07-0095 3 P-0.6 03/27/07 PI3USB102 USB 2.0 High-Speed (480 Mbps) Signal Switch Targeted for Battery Powered Applications Test Circuit for Dynamic Electrical Characteristics S1 HP4396B R1 T1 VCC HP11667A PI3USB102 Test Circuit for Electrical Characteristics Notes: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator All input impulses are supplied by generators having the following characteristics: PRR MHz, ZO = 50, tR 2.5ns, tF 2.5ns. The outputs are measured one at a time with on transition per measurement. Switch Positions Test tPLZ, tPZL tPHZ, tPZH Prop Delay Switch 6.0V GND Open 07-0095 4 P-0.6 03/27/07 PI3USB102 USB 2.0 High-Speed (480 Mbps) Signal Switch Targeted for Battery Powered Applications Switching Waveforms SEL 1.25V 1.25V 2.5V 0V 3.5V Input tPLH Output 2.5V 2.5V 2.5V 1.5V tPHL VOH 2.5V VOL Waveform 2 tPZH VDD/2 Waveform 1 tPZL VDD/2 tPHZ VOH -0.3V tPLZ VOL +0.3V VOH VOL VOH VOL Voltage Waveforms Propagation Delay Times Voltage Waveforms Enable and Disable Times Applications Information Logic Inputs The logic control inputs can be driven up to +3.6V regardless of the supply voltage. For example, given a +3.3V supply, the output enables or select pins may be driven low to 0V and high to 3.6V. Driving IN Rail-to-Rail(R) minimizes power consumption. Power Supply Sequencing Proper power supplysequencing is recommended for all CMOS devices. Always apply VCC and GND before applying signals to input/output or control pins. Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. 07-0095 5 P-0.6 03/27/07 PI3USB102 USB 2.0 High-Speed (480 Mbps) Signal Switch Targeted for Battery Powered Applications Eye Diagram Measurements PI3USB102 TP1 2.25" On 0.5" TPS Rt1 45ohm Rt2 45ohm L R sw1 2 Figure 1: USB2.0 High-speed (480 Mbps) Signal Integrity Test Setup Figure 2: USB 2.0 High Speed (480Mbps) TP1, left eye, and TP5, right eye, with PI3USB102 in the signal path while HDD is driving. 07-0095 6 P-0.6 03/27/07 PI3USB102 USB 2.0 High-Speed (480 Mbps) Signal Switch Targeted for Battery Powered Applications DATE: 03/20/06 DESCRIPTION: 10-Contact, Thin Fine Pitch Quad Flat No-Lead (TQFN) PACKAGE CODE: ZL (ZL10) DOCUMENT CONTROL #: PD-2052 REVISION: A Ordering Information Ordering Code PI3USB102ZLE Package Code ZL Package Description Pb-free & Green, 10-contact TQFN Top Mark XC Notes: * Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ * E = Pb-free and Green * Adding X suffix = Tape/Reel Pericom Semiconductor Corporation * 1-800-435-2336 * www.pericom.com 07-0095 7 P-0.6 03/27/07 |
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