ICS843SDN

FEMTOCLOCK™CRYSTAL-TO-3.3V LVPECL CLOCK GENERATOR

IDT™ / ICS™ 3.3V LVPECL CLOCK GENERATOR

2

ICS843SDNAG REV. A

NOVEMBER 13, 2012

Table 2. Pin Descriptions

Absolute Maximum Ratings

NOTE: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device.

These ratings are stress specifications only. Functional operation of product at these conditions or any conditions beyond

those listed in the DC Characteristics or AC Characteristics is not implied. Exposure to absolute maximum rating conditions for

extended periods may affect product reliability.

DC Electrical Characteristics

Table 3A. Power Supply DC Characteristics, VCC = 3.3V ± 5%, VEE = 0V, TA = 0°C to 70°C

Table 3B. LVPECL DC Characteristics, VCC = 3.3V ± 5%, VEE = 0V, TA = 0°C to 70°C

NOTE 1: Outputs termination with 50

 to V

CC – 2V.

Number

Name

Type

Description

1VCCA

Power

Analog supply pin.

2VEE

Power

Negative supply pin.

3, 4

XTAL_OUT

XTAL_IN

Input

Crystal oscillator interface. XTAL_IN is the input, XTAL_OUT is the output.

5

nc

Unused

No connect.

6, 7

nQ, Q

Output

Differential output pair. LVPECL interface levels.

8VCC

Power

Core supply pin.

Item

Rating

Supply Voltage, VCC

4.6V

Inputs, VI

-0.5V to VCC+ 0.5V

Outputs, IO

Continuos Current

Surge Current

50mA

100mA

Package Thermal Impedance,



JA

129.5

C/W (0 mps)

Storage Temperature, TSTG

-65

C to 150C

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

VCC

Core Supply Voltage

3.135

3.3

3.465

V

VCCA

Analog Supply Voltage

VCC – 0.10

3.3

VCC

V

IEE

Power Supply Current

83

mA

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

VOH

Output High Current; NOTE 1

VCC – 1.4

VCC – 0.9

V

VOL

Output Low Current; NOTE 1

VCC – 2.0

VCC – 1.7

V

VSWING

Peak-to-Peak Output Voltage Swing

0.6

1.0

V