PI3USB40AEX

PI3USB40 3.3V, Wide Bandwidth, 8-Channel, 2:1 Mux/DeMux USB 2.0 Switch with Single Enable Features Description • • • • • • • • • • • The PI3USB40 is a 16- to 8-channel multiplexer/demultiplexer Switch with Hi-Z outputs. 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 transceiver device to one of two corresponding outputs. RON is 4Ω typical Low bit-to-bit skew: 200ps Low crosstalk: –27dB @ 250MHz Low Current Consumption; 20μA Near-Zero propagation delay: 250ps Switching speed: 3ns Channel On-Capacitance: 6pF (typical) VCC Operating Range: +3.0V to +3.6V ESD >2000V . . . Human Body Model >500MHz bandwidth (or data frequency) Packaging (Pb-free & Green available): -48-pin 240 mil wide plastic TSSOP (A) 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). Applications • Routes physical layer signals for high-speed, high bandwidth differential protocols Pin Description Block Diagram V DD 1 48 0I 1 Y0 2 47 1I1 GND 3 46 GND Y1 4 45 0I 2 GND 5 44 1I2 0I2 V DD 6 43 GND 1I2 GND 7 42 2 I1 Y2 8 41 3I1 GND 9 40 GND Y3 10 2 I2 2I2 GND 11 39 38 12 37 GND Y0 0I1 Y1 1I1 Y2 2I1 Y3 3I1 3 I2 3I2 V DD Y4 4I1 GND 13 36 5I1 NC V DD Y5 14 35 4 I1 Y4 15 34 5I1 GND 16 33 GND Y5 17 32 4I2 GND 18 31 5I2 V DD 19 30 GND 6I2 GND 20 29 Y6 6I1 7I2 21 28 GND 7I1 22 27 GND Y7 23 24 26 6I2 4I2 5I2 Y6 6I1 Y7 7I1 SEL 1 25 7I2 PS8698A 02/01/05 PI3USB40 3.3V, Wide Bandwidth, 8-Channel, 2:1, Mux/DeMux USB 2.0 Switch with Single Enable Maximum Ratings Truth Table (Above which useful life may be impaired. For user guidelines, not tested.) Storage Temperature....................................–65°C to +150°C Supply Voltage to Ground Potential...............–0.5V to +4.0V DC Input Voltage............................................–0.5V to +5.5V DC Output Current......................................................120mA Power Dissipation...........................................................0.5W Function SEL YN to NI1 L YN to NI2 H 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 = –40°C to +85°C, VCC = 3.3V ±10%) Paramenter Description Test Conditions Min. Typ.(2) Max. Units 0.8 V VIH Input HIGH Voltage Guaranteed HIGH level VIL Input LOW Voltage Guaranteed LOW level VIK Clamp Diode Voltage VCC = Max., IIN = –18mA IIH Input HIGH Current VCC = Max., VIN = VCC ±5 IIL Input LOW Current VCC = Max., VIN = GND ±5 IOFF Power Down Leakage Current VCC = 0V, VA = 0V, VB ≤ 3.6 RON Switch On-Resistance(3) VCC = Min., 1.5V ≤ VIN ≤ VCC, IIN = –40mA 4 RFLAT(ON) On-Resistance Flatness(4) VCC = Min., VIN @ 1.5V and VCC, IIN = –40mA 1 ∆RON On-Resistance match from center ports to any other port(4) VCC = Min., 1.5V ≤ VIN ≤ VCC, IIN = –40mA 2 2 –0.7 0.9 –1.2 µA 8 Ω 2 PS8698A 02/01/05 PI3USB40 3.3V, Wide Bandwidth, 8-Channel, 2:1, Mux/DeMux USB 2.0 Switch with Single Enable Capacitance (TA = 25°C, f = 1MHz) Parameters(5) Description Test Conditions CIN Input Capacitance COFF Port I Capacitance, Switch OFF CON Switch Capacitance, Switch ON VIN = 0V Typ. Max. 2.0 3.0 4.0 6.0 6.0 10.0 Units pF 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 = 25°C ambient and maximum loading. 3. Measured by the voltage drop between A and B pins at indicated current through the switch. On-Resistance is determined by the lower of the voltages on the two (A & B) pins. 4. This parameter is determined by device characterization but is not production tested. Power Supply Characteristics Parameters ICC Test Conditions(1) Description Quiescent Power Supply Current Typ.(2) Min. VCC = Max., VIN = GND or VCC Max. Units 800 µA 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 = 25°C ambient and maximum loading. 3. Per TTL driven input (control inputs only); A and B pins do not contribute to ICC. Dynamic Electrical Characteristics Over the Operating Range (TA=-40º to +85ºC, VCC=3.3V±10%, GND=0V) Parameter Description XTALK Crosstalk OIRR OFF Isolation BW Bandwidth –3dB Test Conditions RL = 100Ω, f = 250MHz RL = 100Ω Min. Typ.(2) Max. Units -27 dB -32 500 MHz Switching Characteristics Paramenter Test Min. Conditions Description (2) Typ. Max. tPD Propagation Delay(2,3) tPZH, tPZL Line Enable Time - SEL to YN, IN 0.5 15 tPHZ, tPLZ Line Disable Time - SEL to YN, IN 0.5 9 tSK(o) Output Skew between center port (Y4 to Y5) to any other port(2) 0.1 0.2 tSK(p) Skew between opposite transitions of the same output (tPHL - tPLH) (2) 0.1 0.2 Units 0.25 ns 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 bus 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 bus 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. 3 PS8698A 02/01/05 PI3USB40 3.3V, Wide Bandwidth, 8-Channel, 2:1, Mux/DeMux USB 2.0 Switch with Single Enable Test Circuit for Electrical Characteristics(1) 6.0V VCC 200-ohm Pulse Generator VIN VOUT D.U.T 10pF CL RT 200-ohm Notes: 1. CL = Load capacitance: includes jig and probe capacitance. 2. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator 3. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. 4. All input impulses are supplied by generators having the following characteristics: PRR ≤ MHz, ZO = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns. 5. The outputs are measured one at a time with one transition per measurement. Switch Positions Test Switch tPLZ, tPZL (output on B-side) 6.0V tPHZ, tPZH (output on B-side) GND Prop Delay Open Test Circuit for Dynamic Electrical Characteristics HP4195A S1 VCC R1 T1 PI3USB40 HP11667A 10pF 4 50-ohm PS8698A 02/01/05 PI3USB40 3.3V, Wide Bandwidth, 8-Channel, 2:1, Mux/DeMux USB 2.0 Switch with Single Enable Switching Waveforms SEL 1.25V 3.5V Input 2.5V 2.5V tPLH tPHL 2.5V Output 2.5V 1.5V Output VOH 0V tPZL VDD/2 Voltage Waveforms Propagation Delay Times VOL +0.3V VDD/2 Output VOH tPLZ tPHZ tPZH VOL 2.5V 1.25V VOH –0.3V VOL VOH VOL Voltage Waveforms Enable and Disable Times 3.5V 2.5V Data In tPLHX I 2.5V tSK(o) Input VOL tPLH 1.5V tPHL VOH VOH 2.5V VOL tPLHy 3.5V VOH 2.5V Data Out� at Channel X Data Out� at Channel Y 1.5V tPHLX 2.5V Output VOL tSK(p) = I tPHL – tPLH I tPHLy tSK(o) = I tPLHy – tPLHx I or I tPHLy – tPHLx I Output Skew - tSK(o) Pulse Skew - tSK(p) 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® minimizes power consumption. Power-Supply Sequencing Proper power-supply sequencing is advised for all CMOS devices. It is recommended to always apply VCC before applying signals to the input/output or control pins. Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd 5 PS8698A 02/01/05 PI3USB40 3.3V, Wide Bandwidth, 8-Channel, 2:1, Mux/DeMux USB 2.0 Switch with Single Enable Packaging Mechanical: 48-Pin TSSOP (A) 48 .236 .244 1 6.0 6.2 .488 12.4 .496 12.6 .047 1.20 Max SEATING PLANE .004 0.09 .008 0.20 X.XX X.XX DENOTES DIMENSIONS IN MILLIMETERS .002 .006 0.05 0.15 .007 .010 .0197 BSC 0.50 0.17 0.27 0.45 .018 0.75 .030 .319 BSC 8.1 Ordering Information Ordering Code Package Code Package Description PI3USB40A A 48-pin 240 mil wide plastic TSSOP PI3USB40AE A Pb-free & Green, 48-pin 240 mil wide plastic TSSOP Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 6 PS8698A 02/01/05