570FBB000353DGR datasheet, PDF

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570FBB000353DGR: DescriptionANY, I2C PROGRAMMABLE XO; CategoryPassive components oscillator; File Size562KB，36 Pages; ManufacturerSilicon Laboratories Inc; Environmental Compliance

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570FBB000353DGR Overview

ANY, I2C PROGRAMMABLE XO

570FBB000353DGR Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Silicon Laboratories Inc
Reach Compliance Code	compliant
Installation features	SURFACE MOUNT
Number of terminals	8
Maximum operating frequency	810 MHz
Minimum operating frequency	10 MHz
Nominal operating frequency	810 MHz
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	CERAMIC
Encapsulate equivalent code	LCC8,.2X.28,100
power supply	2.5 V
Certification status	Not Qualified
Maximum slew rate	108 mA
Nominal supply voltage	2.5 V
surface mount	YES

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Si 5 7 0 / S i 5 7 1

10 MH

Features



1.4 G H

C P

ROGRAMMABLE

XO/VCXO

Any programmable output



frequencies from 10 to 945 MHz and

select frequencies to 1.4 GHz



C serial interface



3rd generation DSPLL

with superior



jitter performance



3x better frequency stability than



SAW-based oscillators

Internal fixed crystal frequency

ensures high reliability and low

aging

Available LVPECL, CMOS,

LVDS, and CML outputs

Industry-standard 5x7 mm

package

Pb-free/RoHS-compliant



1.8, 2.5, or 3.3 V supply

Si5602

Applications



Ordering Information:



SONET/SDH

xDSL

10 GbE LAN/WAN

ATE

High performance

instrumentation



Low-jitter clock generation



Optical modules



Clock and data recovery

See page 31.

Pin Assignments:

See page 30.

(Top View)

SDA

Description

The Si570 XO/Si571 VCXO utilizes Silicon Laboratories’ advanced DSPLL

circuitry to provide a low-jitter clock at any frequency. The Si570/Si571 are user-

programmable to any output frequency from 10 to 945 MHz and select frequencies

to 1400 MHz with <1 ppb resolution. The device is programmed via an I

C serial

interface. Unlike traditional XO/VCXOs where a different crystal is required for

each output frequency, the Si57x uses one fixed-frequency crystal and a DSPLL

clock synthesis IC to provide any-frequency operation. 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.

CLK–

GND

SCL

CLK+

Functional Block Diagram

CLK-

CLK+

Si570

SDA

Fixed

Frequency

10-1400 MHz



DSPLL Clock

Synthesis

SDA

SCL

CLK–

Si571 only

ADC

GND

SCL

CLK+

GND

Si571

Si570/Si571

Rev. 1.6 6/18

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