ICS844071

FEMTOCLOCK™CRYSTAL-TO-LVDS CLOCK GENERATOR

IDT™ / ICS™ LVDS CLOCK GENERATOR

2

ICS844071AG SEPTEMBER 26, 2007

Table 1. Pin Descriptions

NOTE: Pullup refers to intenal input resistors. See Table 2, Pin Characteristics, for typical values.

Table 2. Pin Characteristics

Number

Name

Type

Description

Power

Analog supply pin.

2

GND

Power

Power supply ground.

3,

4

XTAL_OUT

XTAL_IN

Input

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

5

FREQ_SEL

Input

Pullup

Frequency select pin. LVCMOS/LVTTL interface levels.

6, 7

nQ, Q

Output

Differential output pair. LVDS interface levels.

Power

Core supply pin.

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

Input Capacitance

4

pF

Input Pullup Resistor

51

k

Ω