PI6LC4840 datasheet(7/10 Pages) PERICOM

7 / 10 page

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PS9076

01/03/11

PI6LC4840

Crystal to LVDS/LVCMOS Frequency Synthesizer

LVDS Output Characteristics (VDD = VDDO_QA = VDDO_QB = VDDO_QC = VDDO_REF = 3.3V ±5%, TA = -40°C to 85°C)

Symbol

Parameters

Condition

Min.

Typ.

Max.

Units

rise / Tfall

Rise and Fall Time

20% to 80%, single-ended

145

360

Duty Cycle

Differential

phase

Integrated phase jitter

12KHz-20MHz @ 125MHz

0.45

637kHz - 62.5MHz @125MHz(2)

0.45

sk(o)

Output to Output skew

Within a bank at the same supply

and with equal load

Tri-state Output Current

µA

DIS

Output Disable Time

Output Enable Time

Differential Output Voltage

300

575

Offset Voltage

1.325

1.575

PSRR

Power Supply Rejection Ratio

Modulation Power = -30dBm from

10k to 15M modulation freq.

-50

dBc

2. Does not include 25MHz reference spur.

25MHz Crystal Characteristics (VDD = VDDO_QA = VDDO_QB = VDDO_QC = VDDO_REF = 3.3V ±5%, TA = -40°C to

85°C)

Parameters

Description

Min

Typ

Max.

Units

FREQ

Frequency

MHz

ESR

Equivalent Series Resistance

Ω

Cload

Load Capacitance

Cshunt

Shunt Capacitance

DRIVE

Drive Level

0.65

10-0249

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