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LMK00308

SNAS576D – FEBRUARY 2012 – REVISED MARCH 2016

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Electrical Characteristics (continued)

Unless otherwise specified: Vcc = 3.3 V ± 5%, Vcco = 3.3 V ± 5%, 2.5 V ± 5%, -40 °C

differentially, input slew rate

= 25 °C, and at the Recommended Operation Conditions at the time of product characterization and are not ensured.

(1) (2)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

(5)

Specification is ensured by characterization and is not tested in production.

(6)

(7)

Parameter is specified by design, not tested in production.

(8)

For clock input frequency

≥ 100 MHz, CLKinX can be driven with single-ended (LVCMOS) input swing up to 3.3 Vpp. For clock input

frequency < 100 MHz, the single-ended input swing should be limited to 2 Vpp max to prevent input saturation (refer to Driving the Clock

Inputs for interfacing 2.5 V/3.3 V LVCMOS clock input < 100 MHz to CLKinX).

(9)

The ESR requirements stated must be met to ensure that the oscillator circuitry has no startup issues. However, lower ESR values for

the crystal may be necessary to stay below the maximum power dissipation (drive level) specification of the crystal. Refer to Crystal

Interface for crystal drive level considerations.

CLOCK INPUTS (CLKin0/CLKin0*, CLKin1/CLKin1*)

Input Frequency

Functional up to 3.1 GHz

Output frequency range and timing specified per

output type (refer to LVPECL, LVDS, HCSL,

LVCMOS output specifications)

DC

3.1

GHz

Differential Input High

Voltage

CLKin driven differentially

Vcc

V

Differential Input Low

Voltage

GND

V

Differential Input Voltage

0.15

1.3

V

Differential Input

Common Mode Voltage

0.25

Vcc - 1.2

V

0.25

Vcc - 1.1

0.25

Vcc - 0.9

Single-Ended Input High

Voltage

CLKinX driven single-ended (AC or DC coupled),

CLKinX* AC coupled to GND or externally biased

Vcc

V

Single-Ended Input Low

Voltage

GND

V

Single-Ended Input

0.3

2

Vpp

Single-Ended Input

Common Mode Voltage

0.25

Vcc - 1.2

V

Mux Isolation, CLKin0 to

CLKin1

-84

dBc

-82

-71

-65

CRYSTAL INTERFACE (OSCin, OSCout)

External Clock

OSCin driven single-ended, OSCout floating

250

MHz

Crystal Frequency

Range

Fundamental mode crystal

ESR

≤ 200 Ω (10 to 30 MHz)

ESR

10

40

MHz

OSCin Input

Capacitance

4

pF