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SI5351A-B08584-GT

Description
Clock Generators & Support Products I2C Prog, Any Frequency, Any Output, Xtal Ref, 3-Output LVCMOS Clock Gen
Categorysemiconductor    Analog mixed-signal IC   
File Size2MB,41 Pages
ManufacturerSilicon Laboratories
Download Datasheet Parametric View All

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SI5351A-B08584-GT Overview

Clock Generators & Support Products I2C Prog, Any Frequency, Any Output, Xtal Ref, 3-Output LVCMOS Clock Gen

SI5351A-B08584-GT Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerSilicon Laboratories
Product CategoryClock Generators & Support Products
TypeProgrammable Clock Generators
Maximum Input Frequency27 MHz
Max Output Freq200 MHz
Number of Outputs3 Output
Duty Cycle - Max60 %
Operating Supply Voltage2.5 V, 3.3 V
Operating Supply Current22 mA
Minimum Operating Temperature- 40 C
Maximum Operating Temperature+ 85 C
Mounting StyleSMD/SMT
Package / CaseMSOP-10
PackagingTube
Output TypeCMOS
ProductClock Generators
Jitter70 ps
Supply Voltage - Max3.6 V
Supply Voltage - Min2.25 V
Si5351A/B/C-B
I
2
C - P
R O G R A M M A B L E
A
NY
-F
R E Q U E N C Y
C M O S C
LO CK
G
EN ER ATO R
+ V C X O
Features
www.silabs.com/custom-timing
Generates up to 8 non-integer-related
frequencies from 2.5 kHz to 200 MHz
I
2
C user definable configuration
Exact frequency synthesis at each output
(0 ppm error)
Highly linear VCXO
Optional clock input (CLKIN)
Low output period jitter: < 70 ps pp, typ
Configurable spread spectrum selectable
at each output
Operates from a low-cost, fixed frequency
crystal: 25 or 27 MHz
Supports static phase offset
Programmable rise/fall time control
Glitchless frequency changes
Separate voltage supply pins provide
level translation:

Core VDD: 2.5 or 3.3 V

Output VDDO: 1.8, 2.5, or 3.3 V
Excellent PSRR eliminates external
power supply filtering
Very low power consumption
Adjustable output delay
Available in 2 packages types:
10-MSOP: 3 outputs
20-QFN (4x4 mm): 8 outputs
PCIE Gen 1 compatible
Supports HCSL compatible swing
10-MSOP
20-QFN
Applications
Ordering Information:
See page 29
HDTV, DVD/Blu-ray, set-top box
Audio/video equipment, gaming
Printers, scanners, projectors
Handheld Instrumentation
Residential gateways
Networking/communication
Servers, storage
XO replacement
Description
The Si5351 is an I
2
C configurable clock generator that is ideally suited for replacing
crystals, crystal oscillators, VCXOs, phase-locked loops (PLLs), and fanout buffers in
cost-sensitive applications. Based on a PLL/VCXO + high resolution MultiSynth fractional
divider architecture, the Si5351 can generate any frequency up to 200 MHz on each of its
outputs with 0 ppm error. Three versions of the Si5351 are available to meet a wide
variety of applications. The Si5351A generates up to 8 free-running clocks using an
internal oscillator for replacing crystals and crystal oscillators. The Si5351B adds an
internal VCXO and provides the flexibility to replace both free-running clocks and
synchronous clocks. It eliminates the need for higher cost, custom pullable crystals while
providing reliable operation over a wide tuning range. The Si5351C offers the same
flexibility but synchronizes to an external reference clock (CLKIN).
Functional Block Diagram
Si5351B (20-QFN)
XA
OSC
XB
VCXO
VC
PLL
MultiSynth
0
MultiSynth
1
MultiSynth
2
MultiSynth
3
MultiSynth
4
MultiSynth
5
MultiSynth
6
MultiSynth
7
VDDOA
R0
R1
R2
R3
R4
R5
R6
R7
CLK0
CLK1
VDDOB
CLK2
CLK3
VDDOC
CLK4
CLK5
VDDOD
CLK6
CLK7
SDA
SCL
INTR
OEB
Control
Logic
I
2
C
CLKIN
XA
OSC
XB
Si5351C (20-QFN)
PLL
A
PLL
B
MultiSynth
0
MultiSynth
1
MultiSynth
2
MultiSynth
3
MultiSynth
4
MultiSynth
5
MultiSynth
6
MultiSynth
7
VDDOA
R0
R1
R2
R3
R4
R5
R6
R7
CLK0
CLK1
VDDOB
CLK2
CLK3
VDDOC
CLK4
CLK5
VDDOD
CLK6
CLK7
SDA
SCL
OEB
SSEN
I
2
C
Control
Logic
Rev. 1.0 4/15
Copyright © 2015 by Silicon Laboratories
Si5351A/B/C-B
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