SI5335A-B08757-GM datasheet, PDF

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SI5335A-B08757-GM: DescriptionProcessor Specific Clock Generator,; CategoryThe embedded processor and controller Microcontrollers and processors; File Size1MB，47 Pages; ManufacturerSilicon Laboratories Inc; Environmental Compliance

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SI5335A-B08757-GM Overview

Processor Specific Clock Generator,

SI5335A-B08757-GM Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
package instruction	HVQCCN,
Reach Compliance Code	compliant
Other features	ALSO OPERATES AT 2.5V AND 3.3V NOMINAL SUPPLY
JESD-30 code	S-XQCC-N24
JESD-609 code	e4
length	4 mm
Number of terminals	24
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Maximum output clock frequency	350 MHz
Package body material	UNSPECIFIED
encapsulated code	HVQCCN
Package shape	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	260
Master clock/crystal nominal frequency	27 MHz
Maximum seat height	0.9 mm
Maximum supply voltage	1.98 V
Minimum supply voltage	1.71 V
Nominal supply voltage	1.8 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Gold (Au)
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED
width	4 mm
uPs/uCs/peripheral integrated circuit type	CLOCK GENERATOR, PROCESSOR SPECIFIC
Base Number Matches	1

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Si5335

-C

USTOMIZABLE

, A

- F

REQUENCY

, A

- O

U TP U T

UAD

LOCK

ENERATOR

U FF E R

Features



Low power MultiSynth™ technology

enables independent, any-frequency

synthesis of four frequencies



Configurable as a clock generator or

clock buffer device



Three independent, user-assignable, pin-

selectable device configurations

Highly-configurable output drivers with

up to four differential outputs, eight

single-ended clock outputs, or a

combination of both



Low phase jitter of 0.7 ps RMS



Flexible input reference:



External



CMOS



crystal: 25 or 27 MHz

input: 10 to 200 MHz



SSTL/HSTL input: 10 to 350 MHz



Differential input: 10 to 350 MHz



1 to 250 MHz

1 to 200 MHz



SSTL/HSTL: 1 to 350 MHz



CMOS:

CLK1A

CLK1B

VDDO1

VDDO2

CLK2A

CLK2B



Wide temperature range: –40 to

+85 °C

XA/CLKIN

XB/CLKINB

GND

Pad

Applications



Description

The Si5335 is a highly flexible clock generator capable of synthesizing four completely

non-integer-related frequencies up to 350 MHz. The device has four banks of outputs

with each bank supporting one differential pair or two single-ended outputs. Using

Silicon Laboratories' patented MultiSynth fractional divider technology, all outputs are

guaranteed to have 0 ppm frequency synthesis error regardless of configuration,

enabling the replacement of multiple clock ICs and crystal oscillators with a single

device. The Si5335 supports up to three independent, pin-selectable device

configurations, enabling one device to replace three separate clock generators or

buffer ICs. To ease system design, up to five user-assignable and pin-selectable

control pins are provided, supporting PCIe-compliant spread spectrum control, master

and/or individual output enables, frequency plan selection, and device reset. Two

selectable PLL loop bandwidths support jitter attenuation in applications, such as PCIe

and DSL. Through its flexible ClockBuilder™ (www.silabs.com/ClockBuilder) web

configuration utility, factory-customized, pin-controlled devices are available in two

weeks without minimum order quantity restrictions. Measuring PCIe clock jitter is quick

and easy with the Silicon Labs PCIe Clock Jitter Tool. Download it for free at

www.silabs.com/pcie-learningcenter.

Rev. 1.4 12/15

VDDO3

CLK3B

CLK3A

Ethernet switch/router

PCI Express Gen 1/2/3/4

PCIe jitter attenuation

DSL jitter attenuation

Broadcast video/audio timing



Processor and FPGA clocking

MSAN/DSLAM/PON

Fibre Channel, SAN

Telecom line cards

1 GbE and 10 GbE

VDD

LOS



HCSL:



mA (PLL mode)



12 mA (Buffer mode)

CLK0A

CLK0B

VDD

VDDO0



LVPECL/LVDS/CML:

1 to 350 MHz

RSVD_GND

Independently configurable outputs

support any frequency or format:

Independent output voltage per driver:

1.5, 1.8, 2.5, or 3.3 V

Single supply core with excellent

PSRR: 1.8, 2.5, 3.3 V

Up to five user-assignable pin

functions simplify system design:

SSENB (spread spectrum control),

RESET, Master OEB or OEB per pin,

and Frequency plan select

(FS1, FS0)

Loss of signal alarm

PCIe Gen 1/2/3/4 common clock

compliant

PCIe Gen 3 SRNS Compliant

Two selectable loop bandwidth

settings: 1.6 MHz or 475 kHz

Easy to customize with web-based

utility

Small size: 4 x 4 mm, 24-QFN

Low power (core):

Ordering Information:

See page 41.

Pin Assignments

Top View

Si5335

Si5335

ABLE O F

ONTENTS

Section

Page

1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2. Typical PCIe System Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.2. MultiSynth Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.3. ClockBuilder Web-Customization Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.4. Input Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.5. Input and Output Frequency Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.6. Multi-Function Control Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.7. Output Enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.8. Frequency Select/Device Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.9. Loss-of-Signal Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.10. Output Stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4. Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5. Spread Spectrum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6. Jitter Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

7. Power Supply Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

8. Loop Bandwidth Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

9. Applications of the Si5335 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

9.1. Free-Running Clock Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

9.2. Synchronous Frequency Translation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

9.3. Configurable Universal Buffer and Level Translator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

10. Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

11. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

12. Package Outline: 24-Lead QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

13. Recommended PCB Land Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

14. Top Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

14.1. Si5335 Top Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

14.2. Top Marking Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

15. Device Errata . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Document Change List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Rev. 1.4

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