PI3USB411 datasheet(3/16 Pages) PERICOM

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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

OIRR

OFF Isolation

-39

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

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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