9

Integrated

Circuit

Systems, Inc.

ICS9214

0809D—04/07/06

AC Characteristics-Inputs

PARAMETER

SYMBOL

CONDITION

MIN

TYP

MAX

UNITS

CLK_INT/CLK_INC cycle time

1

711

ns

Cycle-to-Cycle Jitter

2

185

ps

Input clock duty cycle

over 10,000 cycles

40

60

%

CLK_INT/CLK_INC rise and fall

time

20% to 80% of input

voltage

175

700

ps

Difference between input rise

and fall time on same pin of a

single device

20% to 80% of input

voltage

-

150

ps

Spread spectrum modulation

frequency

3

30

33

kHz

Triangular modulation

0.6

%

Non-triangular modulation

0.54

%

Input clock slew rate

20% to 80% of input

voltage

14

V/ns

Input Capacitance

5

CLK_INT, CLK_INC

7

pF

Input Capacitance

5

10

pF

CLK_INT cycle time

Bypass Mode

4

40

ns

SMBus clock frequency

10

100

kHz

Notes:

4. The amount of allowed spreading for non-triangular modulation is determined

by the induced downstream tracking skew.

5. Capacitance measured at f = 1 MHz, DC bias = 0.9V, VAC <100mV.

3

Spread spectrum modulation

index

1. Measured at (VIH(nom) - VIL(nom))/2 and is the absolute value of the worst case deviation.

2. Measured at crossing points for differential clock input or at VTH for single-ended clock input

3. If input modulation is used. Input modulation is not necessary.