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552BD000270DG

Description
VCXO Oscillators Dual VCXO 0.5 ps RMS JTR NCNR
CategoryPassive components   
File Size341KB,15 Pages
ManufacturerSilicon Laboratories
Environmental Compliance
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552BD000270DG Overview

VCXO Oscillators Dual VCXO 0.5 ps RMS JTR NCNR

552BD000270DG Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerSilicon Laboratories
Product CategoryVCXO Oscillators
RoHSDetails
Package / Case7 mm x 5 mm
Length7 mm
Width5 mm
PackagingTray
Factory Pack Quantity50
Unit Weight0.006562 oz
Si 5 5 2
R
EVISION
D
D
U A L
F
REQUENCY
V
OLTAGE
- C
ON TROLLED
C
R Y S TA L
O
SCILLATOR
( V C X O ) 1 0 MH
Z TO
1.4 G H
Z
Features
Available with any-rate output
frequencies from 10–945 MHz and
selected frequencies to 1.4 GHz
Two selectable output frequencies
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 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
Si5602
Applications
Ordering Information:
SONET/SDH
xDSL
10 GbE LAN/WAN
Low-jitter clock generation
Optical modules
Clock and data recovery
See page 10.
Description
The Si552 dual-frequency VCXO utilizes Silicon Laboratories’ advanced
DSPLL
®
circuitry to provide a very low jitter clock for all output frequencies.
The Si552 is available with any-rate output frequency from 10 to 945 MHz
and selected frequencies to 1400 MHz. Unlike traditional VCXOs, where a
different crystal is required for each output frequency, the Si552 uses one
fixed crystal frequency 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 Si552 IC-based VCXO is factory-configurable for a wide
variety of user specifications including frequency, supply voltage, output
format, tuning slope, and temperature stability. Specific configurations are
factory programmed at time of shipment, thereby eliminating the long lead
times associated with custom oscillators.
Pin Assignments:
See page 9.
(Top View)
V
C
1
6
V
DD
FS
2
5
CLK–
GND
3
4
CLK+
Functional Block Diagram
V
DD
CLK- CLK+
Fixed
Frequency XO
Any-rate
10–1400 MHz
DSPLL
®
Clock Synthesis
ADC
V
C
FS
GND
Rev. 1.1 4/13
Copyright © 2013 by Silicon Laboratories
Si552
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