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515CAA125M000AAGR

Description
VCXO Oscillators VCXO; Diff/SE; Single Freq; 0.1-250 MHz
CategoryPassive components   
File Size569KB,24 Pages
ManufacturerSilicon Laboratories
Download Datasheet Parametric View All

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515CAA125M000AAGR Overview

VCXO Oscillators VCXO; Diff/SE; Single Freq; 0.1-250 MHz

515CAA125M000AAGR Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerSilicon Laboratories
Product CategoryVCXO Oscillators
PackagingBox
Si515
V
O L TAG E
- C
ONTR OLLED
C
RYSTAL
O
S C I L L A T O R
(VCXO)
100 k H
Z T O
250 M H
Z
Features
Supports any frequency from
100 kHz to 250 MHz
Low-jitter operation
Short lead times: <2 weeks
AT-cut fundamental mode crystal
ensures high reliability/low aging
High power supply noise rejection
1% control voltage linearity
Available CMOS, LVPECL, LVDS,
and HCSL outputs
Optional integrated 1:2 CMOS
fanout buffer
3.3 and 2.5 V supply options
Industry-standard 5x7, 3.2x5, and
2.5x3.2 mm packages
Pb-free/RoHS-compliant
Selectable Kv (60, 90, 120,
150 ppm/V)
Si5602
5
X
7
MM
, 3.2
X
5
MM
2.5
X
3.2
MM
Ordering Information:
See page 14.
Pin Assignments:
See page 12.
Applications
SONET/SDH/OTN
PON
Low Jitter PLLs
xDSL
Broadcast video
Telecom
Switches/routers
FPGA/ASIC clock generation
Description
The Si515 VCXO utilizes Silicon Laboratories' advanced PLL technology to
provide any frequency from 100 kHz to 250 MHz. Unlike a traditional VCXO where
a different crystal is required for each output frequency, the Si515 uses one fixed
crystal and Silicon Labs’ proprietary synthesizer to generate any frequency across
this range. This IC-based approach allows the crystal resonator to provide
enhanced reliability, improved mechanical robustness, and excellent stability. In
addition, this solution provides superior control voltage linearity and supply noise
rejection, improving PLL stability and simplifying low jitter PLL design in noisy
environments. The Si515 is factory-configurable for a wide variety of user
specifications, including frequency, supply voltage, output format, tuning slope 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.
Vc 1
OE
GND
2
3
6 V
DD
5 NC
4 CLK
CMOS VCXO
Vc 1
OE 2
GND 3
6
V
DD
5 CLK–
4 CLK+
LVPECL/LVDS/HCSL/
Dual CMOS VCXO
Functional Block Diagram
V
DD
OE
Fixed
Frequency
Oscillator
Power Supply Filtering
Any-Frequency
0.1 to 250 MHz
Clock Synthesis
CLK+
CLK–
Vc
ADC
GND
Rev. 1.1 12/17
Copyright © 2017 by Silicon Laboratories
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