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514PCA000798BAGR

Description
Programmable Oscillators Any Frequency I2C Programmable XO
CategoryPassive components   
File Size760KB,38 Pages
ManufacturerSilicon Laboratories
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514PCA000798BAGR Overview

Programmable Oscillators Any Frequency I2C Programmable XO

514PCA000798BAGR Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerSilicon Laboratories
Product CategoryProgrammable Oscillators
Frequency0.1 MHz to 212.5 MHz
Frequency Stability30 PPM
Load Capacitance15 pF
Operating Supply Voltage2.5 V
Supply Voltage - Min2.25 V
Supply Voltage - Max2.75 V
Output FormatCMOS
ProductXO
Termination StyleSMD/SMT
Package / Case3.2 mm x 5 mm
Minimum Operating Temperature- 40 C
Maximum Operating Temperature+ 85 C
Length5 mm
Width3.2 mm
Height1.17 mm
PackagingBox
Current Rating21 mA
TypeI2C Programmable
Duty Cycle - Max52 %
Mounting StyleSMD/SMT
Si514
A
N Y
-F
REQUENCY
I
2
C P
R OG R A MM A B L E
X O ( 1 0 0 k H
Z
Features
TO
250 M H
Z
)
Programmable to any frequency
from 100 kHz to 250 MHz
0.026 ppb frequency tuning
resolution
Glitch suppression on OE, power
on and frequency transitions
Low jitter operation
2- to 4-week lead times
Total stability includes 10-year
aging
Comprehensive production test
coverage includes crystal ESR and
DLD
On-chip LDO for power supply
noise filtering
3.3, 2.5, or 1.8 V operation
Differential (LVPECL, LVDS,
HCSL) or CMOS output options
Optional integrated 1:2 CMOS
fanout buffer
Industry standard 5x7, 3.2x5, and
2.5x3.2 mm packages
–40 to 85
o
C operation
Si5602
5x7mm, 3.2x5mm
2.5x3.2mm
Ordering Information:
See page 28.
Pin Assignments:
See page 27.
Applications
All-digital PLLs
DAC+ VCXO replacement
SONET/SDH/OTN
3G-SDI/HD-SDI/SDI
Datacom
Industrial automation
FPGA/ASIC clock generation
FPGA synchronization
SDA
SCL
GND
1
2
3
6
5
4
V
DD
Description
The Si514 user-programmable I
2
C XO utilizes Silicon Laboratories' advanced PLL
technology to provide any frequency from 100 kHz to 250 MHz with programming
resolution of 0.026 parts per billion. The Si514 uses a single integrated crystal and
Silicon Labs’ proprietary DSPLL synthesizer to generate any frequency across this
range using simple I
2
C commands. Ultra-fine tuning resolution replaces DACs and
VCXOs with an all-digital PLL solution that improves performance where
synchronization is necessary or in free-running reference clock applications. This
solution provides superior supply noise rejection, simplifying low jitter clock
generation in noisy environments. Crystal ESR and DLD are individually
production-tested to guarantee performance and enhance reliability.
The Si514 is factory-configurable for a wide variety of user specifications, including
startup frequency, I
2
C address, supply voltage, output format, and stability. Specific
configurations are factory-programmed at time of shipment, eliminating long lead
times and non-recurring engineering charges associated with custom frequency
oscillators.
CLK–
CLK+
Functional Block Diagram
Rev. 1.1 12/17
Copyright © 2017 by Silicon Laboratories
Si514
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