ICS557-06

2 TO 4 DIFFERENTIAL PCIE GEN1 CLOCK MUX

PCIE FAN OUT BUFFER

IDT® 2 TO 4 DIFFERENTIAL PCIE GEN1 CLOCK MUX

8

ICS557-06

REV M 070512

AC Electrical Characteristics - CLKOUTA/CLKOUTB

Unless stated otherwise, VDD=3.3 V ±5%, Ambient Temperature -40 to +85

° C

1 Test setup is R

L=50 ohms with 2 pF, Rr = 475Ω (1%).

2 Measurement taken from a single-ended waveform.

3 Measurement taken from a differential waveform.

4 Measured at the crossing point where instantaneous voltages of both CLKOUT and CLKOUT are equal.

5 CLKOUT pins are tri-stated when OE is Low asserted. CLKOUT is driven differential when OE is High unless its

PD = low.

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

Input Frequency

200

MHz

Output Frequency

HCSL termination

200

MHz

LVDS termination

100

Input High Voltage1,2

VIH

HCSL

660

700

850

mV

Input Low Voltage1,2

VIL

HCSL

-150

0

mV

Differential Input

Voltages

(VID)

LVDS

250

350

450

mV

Input Offset Voltage

(VIS)

LVDS

1.125

1.25

1.375

V

Output High Voltage1,2

VOH

HCSL

660

700

850

mV

Output Low Voltage1,2

VOL

HCSL

-150

0

27

mV

Crossing Point

Voltage1,2

Absolute

250

350

550

mV

Crossing Point

Voltage1,2,4

Variation over all edges

140

mV

Jitter, Cycle-to-Cycle1,3

60

ps

Rise Time1,2

tOR

From 0.175 V to 0.525 V

175

332

700

ps

Fall Time1,2

tOF

From 0.525 V to 0.175 V

175

344

700

ps

Rise/Fall Time

Variation1,2

125

ps

Skew between Outputs

Measured at crossing point

50

ps

Duty Cycle1,3

45

55

%

Output Enable Time5

All outputs

10

us

Output Disable Time5

All outputs

10

us

Input to Output Delay

Input differential clock to output

differential clock delay measured at

mid point of input levels to mid pint of

output levels

4.5

ns