Si5351B-A-GU Silicon Laboratories Inc, Si5351B-A-GU Datasheet

Clock Generators & Support Products AnyRate 2 PLL 125MHz Clk w/VCXO&I2C 8out

Si5351B-A-GU

Manufacturer Part Number

Si5351B-A-GU

Description

Clock Generators & Support Products AnyRate 2 PLL 125MHz Clk w/VCXO&I2C 8out

Manufacturer

Silicon Laboratories Inc

Type

Any Frequency CMOS Clock Generatorr

Datasheets

1.SI5350.pdf (2 pages)

2.SI5351A-A-GU.pdf (72 pages)

Specifications of Si5351B-A-GU

Mounting Style

SMD/SMT

Max Input Freq

0.008 MHz

Max Output Freq

133 MHz

Number Of Outputs

Operating Supply Voltage

3.3 V

Operating Temperature Range

- 40 C to + 85 C

Supply Current

25 mA

Package / Case

QSOP-24

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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Features



Applications



Description

The Si5351 is an I

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 160 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. The Si5351B 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

Preliminary Rev. 0.95 8/11

Generates up to 8 non-integer-related

frequencies from 8 kHz to 160 MHz

Exact frequency synthesis at each output

(0 ppm error)

Highly linear VCXO

Optional clock input (CLKIN)

Low output period jitter: 100 ps pp

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

HDTV, DVD/Blu-ray, set-top box

Audio/video equipment, gaming

Printers, scanners, projectors

EN ERA TO R

C - P

This information applies to a product under development. Its characteristics and specifications are subject to change without notice.

C user definable configuration

R O GRA MM A B LE

SSEN

OEB

C configurable clock generator that is ideally suited for replacing

OSC

N = 2 or 7

PLLA

PLLB

+ VCXO

Si5351A

Synth

Multi



SSEN

OEB

Glitchless frequency changes

Separate voltage supply pins:



Excellent PSRR eliminates external

power supply filtering

Very low power consumption

Adjustable output-output delay

Available in 3 packages types:



PCIE Gen 1 compliant

Supports HCSL compatible swing

Residential gateways

Networking/communication

Servers, storage

XO replacement

Core VDD: 2.5 or 3.3 V

Output VDDO: 1.8, 2.5, or 3.3 V

10-MSOP: 3 outputs

24-QSOP: 8 outputs

20-QFN (4x4 mm): 8 outputs

OSC

- F

VCXO

PLL

R E Q U E N C Y

Si5351B

Synth

Multi

S i 5 3 5 1 A / B / C

CLKIN

INTR

OEB

CMOS C

OSC

Ordering Information:

24-QSOP

20-QFN

10-MSOP

PLLA

PLLB

See page 66

Si5351C

Synth

Multi

L O C K

Si5351A/B/C

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