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PI3USB411 数据表(PDF) 3 Page - Pericom Semiconductor Corporation |
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PI3USB411 数据表(HTML) 3 Page - Pericom Semiconductor Corporation |
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3 / 16 page ![]() 3 PI3USB411 3.3V, USB 2.0 High-Speed Signal Switch with Low THD Channels for Audio Signals PS8817A 06/06/06 Dynamic Electrical Characteristics Over the Operating Range (TA = –40°C to +85°C, VCC = 3.3V ±10%, GND = 0V) (Only related to pins 1, 2, 4, 14, 15) Parameters(1) Description Test Conditions(3) Typ.(4) Units XTALK Crosstalk RL = 100Ω, f = 250 MHz -31 dB OIRR OFF Isolation -39 BW Bandwidth -3dB RL = 100Ω 700 MHz Switching Characteristics (Only related to pins 1, 2, 4, 14, 15) Parameters Description Test (3) Conditions Min. Typ.(4) Max. Units tPD Propagation Delay(2) 0.25 ns tPZH, tPZL Line Enable Time - USB_EN to DI, DO 0.5 15.0 tPHZ, tPLZ Line Disable Time - USB_EN to DI, DO 0.5 9.0 tSK(p) Skew between opposite transitions of the same output (tPHL - tPLH) (2) 0.1 0.2 Notes for Page 3: 1. Guaranteed by design. 2. 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 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. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 4. Typical values are at VCC = 3.3V, TA = 25C ambient and maximum loading. Power Supply Characteristics Parameter Description Test Conditions(3) Min. Typ. Max. Units ICC Power Supply Current VCC = Max, VIN = GND or VCC 800 µA 06-0078 |
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