3

IDTCSPT855

2.5V PLL CLOCK DRIVER

COMMERCIALANDINDUSTRIALTEMPERATURERANGES

NOTES:

1. H = HIGH Voltage Level

L = LOW Voltage Level

Z = High-Impedance OFF-State

X = Don't Care

2. Typically 10MHz.

FUNCTION TABLE(1)

INPUTS

OUTPUTS

AVDD

PWRDWN

CLK

CLK

Y

Y

FBOUT

FBOUT

PLL

GND

H

L

H

L

H

L

H

Bypassed/OFF

GND

H

H

L

H

L

H

L

Bypassed/OFF

X

L

L

H

Z

Z

Z

Z

OFF

X

L

H

L

Z

Z

Z

Z

OFF

2.5V (nom)

H

L

H

L

H

L

H

O N

2.5V (nom)

H

H

L

H

L

H

L

O N

2.5V (nom)

X

<20MHz(2)

<20MHz(2)

Z

Z

Z

Z

OFF

RECOMMENDED OPERATING CONDITIONS(1)

Symbol

Parameter

Min.

Typ.

Max.

Unit

AVDD,VDDQ

Supply Voltage

2.3

—

2.7

V

VIL

Input Voltage LOW

CLK,

CLK, FBIN, FBIN

——

VDDQ/2 - 0.18

V

PRWDWN

- 0.3

—

0.7

VIH

Input Voltage HIGH

CLK,

CLK, FBIN, FBIN

VDDQ/2 + 0.18

—

—

V

PRWDWN

1.7

—

VDDQ + 0.3

DC Input Signal Voltage(2)

- 0.3

—

VDDQ

V

VID

DifferentialInputSignalVoltage(3)

CLK, FBIN

0.36

—

VDDQ + 0.6

V

VO(X)

OutputDifferentialCross-Voltage(4)

VDDQ/2 - 0.2

VDDQ/2

VDDQ/2 + 0.2

V

VI(X)

Input Differential Pair Cross-Voltage(4)

VDDQ/2 - 0.2

—

VDDQ/2 + 0.2

V

IOH

HIGH-Level Output Current

—

—

- 12

mA

IOL

LOW-Level Output Current

—

—

12

mA

SR

Input Slew Rate, see figure 8

1

—

4

V/ns

TA

OperatingFree-AirTemperature

Commercial

0

—

+70

° C

Industrial

-40

—

+85

NOTES:

1. Unused inputs must be held HIGH or LOW to prevent them from floating.

2. DC input signal voltage specifies the allowable DC execution of differential input.

3. Differential input signal voltage specifies the differential voltage | VTR - VCP | required for switching, where VTR is the true input level and VCP is the complementary input level.

4. Differential cross-point voltage is expected to track variations of VDDQ and is the voltage at which the differential signals must be crossing.