PI3USB14Q datasheet(4/9 Pages) PERICOM

4 / 9 page

PS8760

02/01/05

PI3USB14

Low Voltage, High Bandwidth, USB 2.0,

4:1 Mux/DeMux with Single Enable

Switching Characteristics over 2.5V Operating Range

Parameters

Description

Conditions(1)

Com.

Units

Min.

Max.

tPLH

tPHL

Propogation Delay(2,3) Y to In, In to Y

See Test Diagram

0.3

tPZH

tPZL

Enable Time S or EN to Y or In

See Test Diagram

1.5

15.0

tPHZ

tPLZ

Disable Time S or EN to Y or In

1.5

12.0

Switching Characteristics over 3.3V Operating Range

Parameters

Description

Conditions(1)

Com.

Units

Min.

Typ.

Max.

tPLH

tPHL

Propogation Delay(2,3) Y to In, In to Y

See Test Diagram

0.3

tPZH

tPZL

Enable Time S or EN to Y or In

See Test Diagram

1.5

9.0

tPHZ

tPLZ

Disable Time S or EN to Y or In

1.5

9.0

Notes:

1. See test circuit and waveforms.

2. This parameter is guaranteed but not tested on Propagation Delays.

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 0.30ns 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 interaction with the load on the driven side.

Dynamic Electrical Characteristics Over the Operating Range (TA = -40º to +85º, VCC = 3.3V ± 10%)

Parameter

Description

Test Condition

Min.

Typ.

Max.

Units

XTALK

Crosstalk

See Test Diagram

-60

OIRR

Off-Isolation

See Test Diagram

-60

-3dB Bandwidth

See Test Diagram

200

300

MHz

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