COMMERCIALTEMPERATURERANGE

IDTCV145

1-TO-19DIFFERENTIALCLOCKBUFFER

3

PIN DESCRIPTION

Pin Name

Type

Pin #

Description

CLK_IN, CLK_IN#

IN

70,71

0.7vDifferentialinput

DIF_[16:0] & DIF_[16:0]#

OUT

6 - 9, 12 - 17, 22, 23, 25,

0.7VDifferentialclockoutputs,gearedtoaratiooftheinputclock

26, 30, 31, 33, 34, 38, 39,

41, 42, 44, 45, 49, 50, 52,

53, 55, 56, 58, 59, 61, 62

DIF & DIF# [18:17]

OUT

65 - 68

0.7VDifferentialclockoutputs,whichcanbeconfiguredtobe1:1insteadofgeared.Default

isgearedsameas0-9outputs.

OE_[16:5]#

IN

21, 24, 29, 32, 37, 40, 43,

3.3VLVTTLactiveLOWinputforenablingcorrespondingdifferentialoutputclock.Clocks

48, 51, 54, 57, 60

also can be disabled via SMBus registers

OE _17_18#

IN

69

3.3VLVTTLactivelowinputforenablingboth DIF10and11differentialoutputclocks.Clocks

also can be disabled via SMBus registers individually.

OE_01234#

IN

18

3.3VLVTTLinput

HIGH_BW#

IN

4

3.3 V LVTTL input for selecting the PLL bandwidth. 0 = HIGH BW, 1 = LOW BW.

SCL

IN

19

SMBus slave clock input

SDA

I/O, OC

20

Open collector SMBus data

IREF

IN

1

Aprecisionresistorisattachedtothispintosetthedifferentialoutputcurrent

SA_[1:0]

IN

35, 36

3.3V LVTTL input selecting the address. SA_[2:0] set device SMBus address.

SA_2/PLL_BYPASS#

IN

72

3.3 V LVTTL input for PLLbypass and SMBus address

FS_A

IN

5

3.3VLVTTLinputtoestablishaHIGH(>200Mhz)orLOWfrequency(<200Mhz)range

PD#

IN

3

3.3 V LVTTL input to power up or power down the device (see PD Functionality table).

OE FUNCTIONALITY

OE# - Pin

OE# - SMBus bit

DIF

DIFF]#

0

1

Normal

Normal

0

0

Tristate

Tristate

1

1

Tristate

Tristate

1

0

Tristate

Tristate

Symbol

Description

Min.

Max.

Unit

VDDA

3.3V Core Supply Voltage

4.6

V

VDDIN

3.3V Logic Input Supply Voltage GND - 0.5

4.6

V

TSTG

Storage Temperature

–65

+150

°C

TAMBIENT

Ambient Operating Temperature

0

+70

°C

TCASE

Case Temperature

+115

°C

ESD Prot

Input ESD Protection

2000

V

Human Body Model

ABSOLUTE MAXIMUM RATINGS(1)

NOTE:

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.

PD FUNCTIONALITY

Inputs

Outputs

PD# / VDDA

CLK_IN / CLK_IN#

DIF

DIF#

PLL State

3.3V (Nom)

Running

Running

ON

GND

X

Hi-Z

OFF