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www.pericom.com PI6C49X0204B Rev A

07/20/15

PI6C49X0204B

Low Skew, 1-TO-4 LVCMOS/LVTTL Fanout Buffer

AC CHARACTERISTICS, VDD = 1.8V ± 5%, T

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Units

f

MAX

Output Frequency

VDDO = 1.8V

250

MHz

VDDO = 1.5V

250

tp

LH

Propagation Delay, Low-to-High;

NOTE 1

VDDO = 1.8V, IJ

250MHz

3.5

4.8

ns

VDDO = 1.5V, IJ

250MHz

2.7

3.8

tsk(o)

Output Skew; NOTE 2

50

90

ps

tsk(pp)

Part-to-Part Skew; NOTE 3

250

800

ps

t

R

Output Rise Time NOTE 4

VDDO = 1.8V

300

1000

ps

VDDO = 1.5V

500

1400

t

F

Output Fall Time NOTE 4

VDDO = 1.8V

300

1000

ps

VDDO = 1.5V

500

1400

odc

Output Duty Cycle

IJ 133MHz

45

55

%

133MHz < IJ 200MHz

VDDO ≥ 1.6V

40

60

%

VDDO < 1.6V

IJ 133MHz

40

60

%

t

jit

Additive RMS Jitter

156.25MHz (@12kHz to

20MHz)

0.1

ps

125MHz (@12kHz to

20MHz)

0.1

ps

Parameters measured at f

NOTE 1: Measured from VDD /2 of the input to VDDO /2 of the output.

NOTE 2: Defined as skew between outputs at the same supply voltage and with equal load conditions. Measured at VDDO /2.

NOTE 3: Defined as skew between outputs on different devices operating at the same supply voltages and with equal load

conditions. Using the same type of inputs on each device, the outputs are measured at VDDO /2.

NOTE 4: Defined from 20% to 80%

15-0078