2

COMMERCIALANDINDUSTRIALTEMPERATURERANGES

IDTCSPT855

2.5V PLL CLOCK DRIVER

PIN DESCRIPTION

Pin Name

Pin Number

I/O

Description

AGND

10

Ground for analog supply

AVDD

9

Analog supply

CLK,

CLK

6, 7

I

Differentialclockinput

FBIN, FBIN

22, 23

I

Feedbackdifferentialclockinput

FBOUT,

FBOUT

19, 20

O

Feedbackdifferentialclockoutput

GND

1, 5, 14, 15, 28

Ground

PWRDWN

24

I

Control input to turn device in the power-down mode

VDDQ

4, 8, 11, 18, 21, 25

I/O supply

Y[0:3]

3, 12, 17, 26

O

Buffered output copies of input clock, CLK

Y[0:3]

2, 13, 16, 27

O

Buffered output copies of input clock,

CLK

VDDQ

GND

2

3

4

5

6

7

8

9

10

11

12

13

14

27

26

25

24

23

22

21

20

19

18

17

16

15

28

1

VDDQ

VDDQ

GND

GND

Y3

Y3

GND

Y0

Y0

Y1

Y1

CLK

CLK

AVDD

VDDQ

PWRDWN

FBIN

FBIN

FBOUT

FBOUT

VDDQ

Y2

Y2

GND

VDDQ

AGND

PIN CONFIGURATION

TSSOP

TOP VIEW

ABSOLUTE MAXIMUM RATINGS(1)

Symbol

Rating

Max

Unit

VDDQ, AVDD

Supply Voltage Range

–0.5 to +3.6

V

VI(2)

InputVoltageRange

–0.5 to VDDQ + 0.5

V

VO(2)

OutputVoltageRange

–0.5 to VDDQ + 0.5

V

IIK (VI < 0 or

Input Clamp Current

±50

mA

VI < VDDQ)

IOK (VO < 0 or

Output Clamp Current

±50

mA

VO > VDDQ)

IO

ContinuousOutputCurrent

±50

mA

(VO = 0 to VDDQ)

VDDQ or GND

ContinuousCurrent

±100

mA

θJA(3)

PackageThermalImpedance

105.8

°C/W

TSTG

StorageTemperatureRange

– 65 to +150

° C

NOTES:

1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause

permanent damage to the device. This is a stress rating only and functional operation

of the device at these or any other conditions above those indicated in the operational

sections of this specification is not implied. Exposure to absolute maximum rating

conditions for extended periods may affect reliability.

2. The input and output negative-voltage ratings may be exceeded if the input and output

clamp-current ratings are observed. This value is limited to 3.6V maximum.

3. The package thermal impedance is calculated in accordance with JESD 51.