PI3L100 查看數據表（PDF） - Pericom Semiconductor

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PI3L100

3.3V, wide bandwidth quad 21 mux/demux lan switch

Pericom Semiconductor 

PI3L100

3.3V, Wide Bandwidth, Quad

2:1 Mux/DeMux LAN Switch

Power Supply Characteristics

Parameters

Description

Test Condidtions(1)

Min. Typ.(2) Max. Units

ICC

Quisecent Power Supply

Current

VCC = Max.

VIN = GND or

VCC

0.1 3.0 µA

∆ICC

Supply Current per Input

@ TTL HIGH

VCC = Max.

VIN = VCC -0.6

750 µA

ICCD

Supply Current per Input

per MHz(1)

VCC =Max.,

Input Pins Open E = GND Control

Input Toggling 50% Duty Cycle

0.25

mA/

MHZ

Notes:

1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.

2. Typical values are at VCC = 3.3V, +25°C ambient.

3. Per TTL driven input (VIN = 3.0V, control inputs only); A and B pins do not contribute to ICC.

4. This current applies to the control inputs only and represent the current required to switch internal capacitance at the specified frequency. The

A and B inputs generate no significant AC or DC currents as they transition. This parameter is not tested, but is guaranteed by design.

Switching Characteristics over Operating Range

Paramters

TPLH

Description

Propagation Delay(2, 3); In to Y

Conditions(1)

Min.

Com.

Typ.

Max.

0.25

Units

TPY

TPHZ

TPLZ

Bus Enable Time; S to Y

Bus Disable Time; E to Y

CL = 50pf

1

RL = 500Ω

1

4.5

ns

4.5

XTALK

Crosstalk

RL= 100Ω; f = 30MHz

See Figure 2

-90

dB

OIRR

Off Isolation

RL= 100Ω; f = 30MHz

-45

BW

-3dB Bandwidth

RL= 100Ω; See Figure 2

213

MHz

tON

Turn On Time

tOFF

Turn Off Time

RL = 100Ω

1.0

CL = 35pF, See Figure 1 1.0

5

ns

5

Notes:

1. See test circuit and waveforms.

2. This parameter is guaranteed but not tested.

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 50pF 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 interaction with the load on the driven side.

3

PS8504E

02/02/05

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