591KB148M352DGR datasheet, PDF

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591KB148M352DGR: Description1 ps MAX JITTER CRYSTAL OSCILLATOR; File Size95KB，12 Pages; ManufacturerSILABS; Websitehttp://www.silabs.com

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591KB148M352DGR Overview

1 ps MAX JITTER CRYSTAL OSCILLATOR

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S i 5 9 0 / 5 91

1 ps M

I T T E R

RYSTAL

SC ILLA TOR

(XO)

(10 M H

Z TO

525 MH

)

Features



Available with any-rate output



frequencies from 10 MHz to 525 MHz



3rd generation DSPLL

with superior



jitter performance: 1 ps max jitter



Better frequency stability than SAW-



based oscillators



Internal fundamental mode crystal

ensures high reliability

Available CMOS, LVPECL,

LVDS, and CML outputs

3.3, 2.5, and 1.8 V supply options

Industry-standard 5 x 7 mm

package and pinout

Pb-free/RoHS-compliant

–40 to +85 ºC operating

temperature range

Si5602

Applications



Ordering Information:

See page 6.



SONET/SDH (OC-3/12/48)



Networking



SD/HD SDI/3G SDI video

Test and measurement



Storage



FPGA/ASIC clock generation

Description

The Si590/591 XO utilizes Silicon Laboratories’ advanced DSPLL

circuitry

to provide a low jitter clock at high frequencies. The Si590/591 is available

with any-rate output frequency from 10 to 525 MHz. Unlike a traditional XO,

where a unique crystal is required for each output frequency, the Si590/591

uses one fixed crystal to provide a wide range of output frequencies. This IC

based approach allows the crystal resonator to provide exceptional

frequency stability and reliability. In addition, DSPLL clock synthesis provides

superior supply noise rejection, simplifying the task of generating low jitter

clocks in noisy environments typically found in communication systems. The

Si590/591 IC based XO is factory configurable for a wide variety of user

specifications including frequency, supply voltage, output format, and

temperature stability. Specific configurations are factory programmed at time

of shipment, thereby eliminating long lead times associated with custom

oscillators.

Pin Assignments:

See page 5.

(Top View)

CLK–

GND

CLK+

Si590 (LVDS/LVPECL/CML)

Functional Block Diagram

CLK– CLK+

GND

CLK

Si590 (CMOS)

17 k



Any-rate

10–525 MHz

DSPLL

Clock

Synthesis

Fixed

Frequency

CLK–

17 k



GND

CLK+

Si591 (LVDS/LVPECL/CML)

GND

*Note: Output Enable High/Low Options Available – See Ordering Information

Preliminary Rev. 0.25 7/09

Si590/591

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